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miniPV-X
User Manual
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Cannon miniPV-X User Manual

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i
1
INTRODUCTION/INSTALLATION 1
The miniPV®-X Automatic Viscometer .................................................................................. 1
Measuring kinematic viscosity ............................................................................................... 2
Safety cautions ..................................................................................................................... 3
Installation ............................................................................................................................ 5
Required installation components............................................................................... 5
V acuum Pump unit connections ................................................................................. 5
Bath unit connections ................................................................................................ 5
®
VISCPRO Installing VISCPRO
Running the software............................................................................................................. 7
Checking configuration.......................................................................................................... 9
Manually changing tube calibration constants ....................................................................... 12
Checking W ash and Advanced Settings ............................................................................... 13
Preparing the miniPV -X for testing ...................................................................................... 15
for W indows® XP®............................................................................................ 6
®
software.............................................................................................. 6
Computer requirements............................................................................................. 6
Windows® XP® installation ........................................................................................ 6
Installation actions..................................................................................................... 6
Inital Configuration.................................................................................................... 9
Logging in ................................................................................................................. 9
Checking Instrument Settings .................................................................................... 9
V iewing/editing setup information ............................................................................. 11
Inserting the miniPV -X temperature probes/reference thermometer .......................... 15
Adjusting V acuum/Pressure settings ......................................................................... 16
Setting bath temperature ......................................................................................... 16
Training tube sensors............................................................................................... 18
Checking wash functions ......................................................................................... 17
Calibrating the miniA V ............................................................................................ 18
Notes on computer-directed miniAV operation ........................................................ 18
2
TESTING SAMPLES WITH THE miniPV-X
AUTOMATIC VISCOMETER 19
Turning on the miniPV -X ......................................................................................... 19
T esting samples....................................................................................................... 19
Pausing a test.......................................................................................................... 24
Resuming a test....................................................................................................... 24
Aborting a test ........................................................................................................ 25
CANNON
®
miniPV-X Automatic Viscometer with VISCPRO® Instruction & Operation Manual
Version 1.0a— January, 2011; CANNON
2139 High Tech Road • State College, PA 16803 • USA
®
Instrument Company
ii
Concluding a test .................................................................................................... 25
W orking with Instrument Groups ......................................................................................... 25
Group configuration ................................................................................................ 26
Configuring the Machine Status window to correspond with multiple-instrument place-
ment ....................................................................................................................... 27
V iewing test results ............................................................................................................. 27
Creating an analysis ............................................................................................................ 28
Configuring the VI Matcher (optional) ................................................................................. 28
3
4
CALIBRATING THE miniPV-X 29
Calibrating temperature ....................................................................................................... 29
Calibration procedure ............................................................................................. 29
Training sensors .................................................................................................................. 30
Standard tube calibration .................................................................................................... 31
Calibration procedure ............................................................................................. 32
Saving a calibration ................................................................................................. 34
miniPV -X calibration equations ............................................................................... 35
USING THE miniPV-X SOFTWARE 37
VISCPRO® generic instrument interface .............................................................................. 37
Main options .......................................................................................................... 38
Security options ...................................................................................................... 39
Initial security setup................................................................................................. 39
Adjusting Security Settings ...................................................................................... 41
Print/Print setup options .......................................................................................... 42
Analyses options................................................................................................................. 42
Analysis types......................................................................................................... 42
Analyses menu options............................................................................................ 42
Window options ................................................................................................................. 44
miniPV -X module menu options .......................................................................................... 45
Configure options ................................................................................................... 45
Print Instrument and Tray Settings ........................................................................... 45
Instrument Settings.................................................................................................. 47
Tray Settings: T ube and Bath ................................................................................... 49
Tray Settings: Test................................................................................................... 51
Tray Settings: W ash ................................................................................................ 53
Tray Settings: Advanced.......................................................................................... 56
Saving a configuration ............................................................................................. 58
Calibration.............................................................................................................. 58
Service menu options .......................................................................................................... 60
CANNON
®
miniPV-X Automatic Viscometer with VISCPRO® Instruction & Operation Manual
Version 1.0a—January, 2011; CANNON
2139 High Tech Road • State College, PA 16803 • USA
®
Instrument Company
T esting samples—software options...................................................................................... 64
Entering sample ID information................................................................................ 64
Selecting sample actions.......................................................................................... 64
V iscosity Action for viscosity standards ................................................................... 66
Copy & Paste Sample ID data entry options ........................................................... 67
Inserting/deleting a sample ID in the test sequence ................................................... 67
Saving Sample ID information ................................................................................. 68
miniPV -X analysis modules ..................................................................................... 68
Configuring the VI Matcher................................................................................................. 69
Turning off the VI Matcher...................................................................................... 72
Handling errors ................................................................................................................... 71
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5
OPERATING, MAINTAINING
AND SERVICING THE miniPV-X 73
miniPV -X components ........................................................................................................ 73
Bath Unit ................................................................................................................ 73
Solvent Dispensing System...................................................................................... 74
Maintaining the solvent system............................................................................................. 74
Filling the solvent container(s).................................................................................. 75
Emptying the W aste Receiver .................................................................................. 75
Dual-solvent washing .............................................................................................. 76
V iscometer tubes ................................................................................................................ 76
Thermistor operation............................................................................................... 76
Timing bulb determination........................................................................................ 76
Carousel Adjustments ......................................................................................................... 77
Homing the Carousel .............................................................................................. 77
Adjusting sample tray height .................................................................................... 77
Adjusting sample tray force ..................................................................................... 77
T emperature bath................................................................................................................ 79
Filling the bath ........................................................................................................ 79
Draining the bath..................................................................................................... 80
Bath heaters ........................................................................................................... 80
Bath fluid safety features ......................................................................................... 80
Checking solvent levels ........................................................................................... 80
Solvent/drain lines ................................................................................................... 80
Ventilation ........................................................................................................................... 81
Checking bath temperature ................................................................................................. 81
Dual-solvent washing .......................................................................................................... 81
Solvent wash by computer .................................................................................................. 81
Setting wash parameters ......................................................................................... 82
Preventive maintenance ....................................................................................................... 82
miniPV -X repair/replacement components ........................................................................... 83
6
CANNON
®
miniPV-X Automatic Viscometer with VISCPRO® Instruction & Operation Manual
Version 1.0a— January, 2011; CANNON
2139 High Tech Road • State College, PA 16803 • USA
®
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iv
ANALYSIS CONFIGURATION OPTIONS 85
Creating an analysis ............................................................................................................ 85
Sorting analysis data ........................................................................................................... 86
Using the date filter ............................................................................................................. 87
Using the sample filter ......................................................................................................... 88
Using the report/port output filter......................................................................................... 89
Reconfiguring a displayed analysis ....................................................................................... 89
Resizing table columns ........................................................................................................ 89
Saving a current analysis ..................................................................................................... 90
Deleting an analysis configuration......................................................................................... 90
Printing an analysis .............................................................................................................. 90
Keystrokes for selecting data for printing ................................................................. 91
Exporting analysis data........................................................................................................ 91
7
8
9
10
11
CAV DATA TABLE 93
Configuring the CA V Data T able ............................................................................. 95
STANDARD VI TABLE ANALYSIS 99
Configuring the standard VI table ............................................................................ 99
ERROR DATA EXPORT ANALYSIS 105
Configuring the Error Data Export analysis ............................................................ 105
ERROR LOG TABLE ANALYSIS 111
Configuring the Error Log Analysis .........................................................................111
USING THE DATABASE MANAGER 115
Archiving old data................................................................................................. 116
Changing the database directory............................................................................ 116
Importing archived data ........................................................................................ 117
Repairing/compacting the database........................................................................ 117
Exit ...................................................................................................................... 117
12
REPLACEMENT PARTS LIST 119
CANNON
®
miniPV-X Automatic Viscometer with VISCPRO® Instruction & Operation Manual
Version 1.0a—January, 2011; CANNON
2139 High Tech Road • State College, PA 16803 • USA
®
Instrument Company
v
A
I
APPENDIX A–MULTIPLE UNIT CONFIGURATION 121
Introduction ...................................................................................................................... 121
Kit components ................................................................................................................ 121
Procedure ........................................................................................................................ 121
Connecting components ........................................................................................ 121
Completing RS-485 connections ........................................................................... 121
INDEX 123
CANNON
®
miniPV-X Automatic Viscometer with VISCPRO® Instruction & Operation Manual
Version 1.0a— January, 2011; CANNON
2139 High Tech Road • State College, PA 16803 • USA
®
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CANNON
®
miniPV-X Automatic Viscometer with VISCPRO® Instruction & Operation Manual
Version 1.0a—January, 2011; CANNON
®
Instrument Company
2139 High Tech Road • State College, PA 16803 • USA
CHAPTER
1
1
INTRODUCTION/INSTALLATION
The miniPV®- Series Automatic Viscometers
The miniPV®-Series Automatic Viscometers are specially designed to handle the unique needs of polymer analysis laboratories for viscosity determination of polymer solutions. The operator places the test sample(s) in small vials in the sample holder(s), enters sample identifica­tion information from the computer keyboard, and initiates testing with software keypad commands. Without any further operator involvement, the miniPV-Series determines the viscosity and cleans the capillary tube(s) in preparation for the next test. All pertinent test data can be saved to a computer database for future retrieval and reporting.
Manual
This manual is designed to provide the operator with information about:
VISCPROminiPV
and operation
®
software installation and operation
®
equipment, installation
Applications
Calibration, service and mainte-
nance procedures
miniPV instruments are appropriate for determining relative, inherent, and reduced viscosity of polymers. Viscosity and Instrinsic values can also be reported. Instrinsic viscosity can be dtermined by two single point methods or by the rigorous Huggins­Kraemer analysis.
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miniAV®-HX Automatic Viscometer with VISCPRO® Instruction & Operation Manual
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2
Measuring Viscosity
Relative viscosity (Þr), a primary concern in the polymer industry , is determined from kinematic viscosity by factoring in the density of the solvent and materials in solution and comparing the result­ing absolute viscosity of the solution with the absolute viscosity of pure solvent. ASTM D 2857 states that relative
viscosity is “the ratio of the viscosity of the solution, Þ, to the viscosity of the solvent, Þs, that is, Þr = Þ/Þs .”
Units of measure
Methodology
NOTES
Inherent viscosity
Reduced viscosity
As a ratio, relative viscosity is a unitless measurement.
ASTM Method D2857 describes the appropraite test methodology for determination of relative viscosity .
ASTM D 2857 states that “the kinetic energy correction constant is negligible for the recommended viscometers and efflux times.” For this reason, a default value of zero is assigned for E if the MiniPV viscometer tube/bulb has not been calibrated.
Calibration is strongly recommended to ensure the highest precision when measuring relative viscosity . Calibration is required for accurate determina­tion of absolute viscosity . However , it is not necessary to calibrate if measuring dilute solutions in the same bulb in which the solvent “blank” has been analyzed.
Inherent viscosity (Þinh) is the ratio of the natural logarithm (ln) of the relative viscosity (hr) to the mass concentration of the polymer (c) in g/ cm3, g/dl or g/ml , as expressed by the equation: Þinh = ln Þr/c.
Calculation of reduced viscosity is accomplished by first obtaining the relative viscosity increment, Þi, (the ratio of the difference between the viscosities of solution and solvent to the viscosity of the solvent alone, as determined by the formula Þi = (Þ- Þs)/ Þs) and then relating that value to the mass concentration of the polymer (c) using the formula Þ = Þi/c.
Instrinic viscosity
Adjusted Relative viscosity
CANNON
®
miniPV-Series Automatic Viscometer with VISCPRO® Instruction & Operation Manual
Intrinsic viscosity is the limiting value of the reduced viscosity or the inherent viscosity at infinite dilution of the polymer. This value is calcu­lated per ASTM D 2857 by extrapolation of viscosity versus concentra­tion for several solution concentrations. Intrinsic viscosity calculations performed by VISCPRO yield a value in dl/g (deciliters per gram). The Billmeyer and Solomon-Ciuta equations for single-point intrinsic viscosity calculation may also be used.
The adjusted relative viscosity (AR V) is only applicable to Solution Relative Viscosity samples. The ARV Factor is simply a constant that is stipulated in the viscosity action window .
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Manual viscometers
3
Sections 9-11 of ASTM D445 provide detailed instructions for using manual viscometers. ASTM D 446 suggests a minimum flow time of 200 seconds for nearly all the glass capillary viscometers (see tables in ASTM D 446).
Automatic viscometers
For automatic viscometers, ASTM D445 Section 6.1.2 states, “Auto­mated apparatus may be used as long as they mimic the physical condi­tions, operations or processes of the manual apparatus they replace ... The automated apparatus shall be capable of determining kinematic viscosity of a certified viscosity reference standard within the limits stated ...”
Thus, automated viscometers can be used with flow times less than 200 seconds, as long as the kinetic energy correction and precision require­ments are met.
miniPV Series tube characteristics
Each standard miniPV Series viscometer tube has two bulbs, each of which has its own calibration. The normal flow times for each bulb are 40-400 seconds. Each tube has a hundredfold measurement range (for example, range from 2-200 cSt or 20-2000 cSt for each tube).
NOTE
CANNON® Instrument Company has not recommended the use of longer
flow times with the miniPV Series, as shorter flow times allow greater productivity . With longer flow times, the sample throughput would be significantly reduced. However, the viscometer and sof tware design does permit longer efflux times (up to 600 seconds) as desired by the user.
Safety cautions
Please observe the following safety procedures and notices for proper operation of the miniPV Series:
Do NOT lift the unit by the side panel “ears”. Always support the
unit from the base when moving or lifting.
Make sure that your unit is operated only by qualified personnel.Make sure that you read and understand all operating instructions and
safety precautions listed in this manual before installing or operating your unit. If you have questions regarding instrument operation or documentation, contact CANNON
®
Instrument Company.
Do not deviate from the installation, operation or maintenance
procedures described in this manual. Improper use of the miniPV Series instrument may result in a hazardous situation and may void the manufacturer’s warranty.
Handle and transport the unit with care. Sudden jolts or impacts may
cause damage to components.
Observe all warning labels.Never remove warning labels.Never operate damaged or leaking equipment.
CANNON
®
miniPV-Series Automatic Viscometer with VISCPRO® Instruction & Operation Manual
Version 1.a— January, 2011; CANNON
2139 High Tech Road • State College, PA 16803 • USA
®
Instrument Company
4
Never operate the unit without appropriate levels of approved bath fluid in the bath.
Do not fill the bath vessel higher than the cold fill level.
( O )
Supply OFF Symbol
Unless procedures specify otherwise, always turn off the unit and
disconnect the mains cable from the power source before performing service or maintenance procedures, or before moving the unit.
Never operate the equipment with damaged mains power cables.Refer all service and repairs to qualified personnel.
In addition to the cautionary statements listed previously , additional
General Caution
cautions may be posted throughout this manual. These cautions, identified by the caution symbol (see left) indicate important operational proce­dures. Read and follow these important instructions. Failure to observe these instructions may void warranties, compromise operator safety , and/ or result in damage to the miniPV Series unit.
Hot Surface Caution
Protective Conductor
WARNING
MAINS
~
AC Power Input Symbol
Hot surface cautions may be attached on or near hot surfaces of the miniPV Series. A void touching hot surfaces, particularly when operating the miniPV Series at bath temperatures exceeding 50°C.
The Protective Conductor T erminal symbol is used to indicate required ground connections for your instrument electrical supply.
When supplying power to this instrument, ensure that the protective ground (earth) terminals of the instrument are connected to the protective conductor of the (supplied) line (MAINS) power cord. Use only the manufacturer-supplied power cord, which should be inserted in a socket outlet (receptacle) which is also provided with a protective ground (earth) contact. conductor (grounding).
The ~MAINS symbol indicates instructions or connections for the AC power supply. The AC Power input must match the electrical specifica­tions listed on the label on the rear panel of the instrument. The supplied AC Mains power cord must be attached to the connector labelled ~MAINS. This connection serves as a means of disconnect and should be readily accessible.
Do not use an extension cord (power cable) without a protective
Hazardous materials
CANNON
The (O) symbol indicates the OFF position for the electrical switches for your unit (AC Mains or accessories).
Routine miniPV Series operation may require the use and handling of hazardous chemicals and solutions. CANNON strongly urges the operators and technicians working with the miniPV
®
Instrument Company
2
®
miniPV-Series Automatic Viscometer with VISCPRO® Instruction & Operation Manual
Version 1.a— January, 2011; CANNON
2139 High Tech Road • State College, PA 16803 • USA
®
Instrument Company
Installation
Required installation components
Series to take proper safety precautions when working with these materials. These safety procedures can be found in the Material Safety Data Sheets which accompany the solutions.
miniPV Series setup can be accomplished in just a few minutes by following the diagrams included with the manual. Fill the miniPV Series bath per the instructions in Chapter 5.
User-supplied solvent container w/ G38 threads for lidCANNON
®
-supplied Nalgene® waste bottle with lid
Waste Receiver AssemblyBlue transparent Vacuum line (6 mm FEP)
Pressure and Solvent lines (1/8” FEP) CAUTION
When moving or positioning the miniPV Series unit, do not lift it by the side panel units (“ears”). Hinges on these modular components are designed for easy removal. Always support the miniPV Series unit from the base.
5
Vacuum Pump unit connections
Use the 1/4” blue opaque polyethylene tubing to vent exhaust from the
Waste Receiver Assembly Exhaust port to the user ventilation system.
Use the 6 mm FEP tubing to connect the Vacuum Port to the bath unit
V acuum connector .
Use the Waste Receiver Assembly power cable to provide AC power to the
V acuum Pump from the female Power Supply V acuum Pump AC connector .
Bath unit connections
Use the 1/8” FEP line to connect from the Solvent A fitting to the user-
supplied solvent container. Insert the end of the solvent tube through the bottle cap (see NOTE below) and screw the 20-micron filter onto the tube end. If using two solvents, do the same for the (optional) Solvent B fitting.
NOTE CANNON provides two G-38 reagent bottle caps for user solvent contain-
ers.
Use the 6 mm FEP tubing to connect the 6 mm Waste V ac port to the 6 mm
Waste/Vacuum fitting on the waste bottle lid.
Use the 1/8” FEP to connect the Pres[sure] barbed fitting to the Air Out
barbed fitting on the Power Supply unit.
Use the RS-232 cable to connect from the RS-232 port to the computer
connection. For multi-unit RS-485 connections, see APPENDIX A.
CANNON
®
miniPV-Series Automatic Viscometer with VISCPRO® Instruction & Operation Manual
Version 1.a— January, 2011; CANNON
2139 High Tech Road • State College, PA 16803 • USA
®
Instrument Company
6
Use the 6 mm FEP union to connect the protruding 6 mm FEP waste tube
from the bath unit to the 6 mm FEP tubing. Then connect the other end of the 6 mm FEP tubing to the 6 mm fitting on the Waste Receiver lid.
Use the DC power cable to connect the bath unit DC IN to the DC OUT on
the power supply.
Use the MAINS power cord to connect the Power Supply to the MAINS
power outlet matching the voltage specifications on the Power Supply rear panel.
VISCPRO® for Windows® XP
®
VISCPRO® is a powerful software product designed to provide a generic instrument interface for controlling and operating your CANNON instrument(s) via computer. All instrument functions necessary for testing are controlled via computer. VISCPRO® also includes reporting/analysis modules for processing and displaying sample data.Installing VISCPRO software
Installing VISCPRO® software
T o install the VISCPRO® software, follow the instructions below in the sequence presented. Make certain that you complete the sections on checking instrument settings and initial calibration data. If you encounter difficulties at any stage in the installation process, call CANNON service at 814-353-8000.
Computer requirements
Consult CANNON® Instrument Company at 814-353-8000 for current computer specifications. The computer should be a PC with a working version of the Windows® XP® operating system installed.
®
®
®
Windows® XP
®
installation
Installation actions
CANNON
®
miniPV-Series Automatic Viscometer with VISCPRO® Instruction & Operation Manual
Version 1.a— January, 2011; CANNON
1. Turn on your computer. Wait for the Windows® software to load.
2. Insert the VISCPRO
®
installation CD-ROM into the disk drive. If the
installation program does not begin automatically , click the Control
Panel option from the W indows® Start Bar . Then double-click the Add/Remove Programs icon and follow the Windows® prompts to
complete the installation procedure. The executable file for VISCPRO® software installation is SETUP.EXE.
The installation program will:
create a directory for your program files. The default directory is
C:\Program Files\Cannon Instrument\VISCPRO.
write SETUP information to the W indows
®
Instrument Company
2139 High Tech Road • State College, PA 16803 • USA
®
registry.
copy the software executable file and other necessary files to the
.
.
directory you specify.
update other files in your W indows
compatible with the current VISCPRO
place a shortcut icon for the VISCPRO
Windows
®
place a copy of the VISCPRO database in the appropriate directory
for your operating system (see table below). The installation CD­ROM copy of the SAMPLES.MDB file contains initial factory calibration data unique to that instrument.
metsySgnitarepO )dednemmocer(yrotceriDataDtluafeD
desktop.
®
directories to versions fully
®
software.
®
executable file on your
7
PX,0002swodniW \0.2\orPcsiV\tnemurtsnInonnaC\noitacilppA\sresUllA\sgn
TNswodniW \0.2\orPcsiV\tnemurtsnInonnaC\ataDnoitacilppA\sresUllA\seliforP\TNniW\:C
EM,89swodniW \0.2\orPcsiV\tnemurtsnInonnaC\ataDnoitacilppA\sresUllA\swodniW\:C
Running the software
the VISCPRO II icon
Title Bar
Menu Bar
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ehtrofhcraesoslanacuoY:ETON bdm.selpmas
elif
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etacol
retupmoccificepsruoyrofnoitamrofnisiht
reweivruoyrofdetcelessinoitpo"sredlofdnaselifneddihwohS"ehtniatrecekam,elbisivtoneraseirotceridfI
Provide power to the miniPV Series instrument, and verify serial connec­tions to the computer. To load your newly-installed VISCPRO® software, double-click on the VISCPRO® icon on your W indows® desktop (Win­dows® NT® users can click Start/All Programs/VISCPRO/VISCPRO
2.0).
Sample
Input
window
Status bar
Analysis
window
Status bar
CANNON
®
miniPV-Series Automatic Viscometer with VISCPRO® Instruction & Operation Manual
Version 1.a— January, 2011; CANNON
2139 High Tech Road • State College, PA 16803 • USA
®
Instrument Company
8
If you received a configuration disk with your installation package, the software may have already been preconfigured with instrument settings unique to your laboratory , including instrument type(s), tube range and serial #, and calibration constants. In a moment, we will verify these settings. The image below demonstrates a typical screen configuration:
®
The VISCPRO
primary display
®
The VISCPRO VISCPRO
primary display window is framed on the top by the
®
title bar and menu bar, and on the bottom by the VISCPRO status bar. The application window can be user -configured to include child windows (Sample Input or Machine Status windows, Analyses) which can be opened and closed independently . The Sample Input window describes your CANNON
®
instrument and provides controls for running tests. The
Analysis window presents data from miniPV Series tests.
®
The Sample Input window
NOTE
The Data Table analysis/report window (displays data from completed tests)
CANNON
®
miniPV-Series Automatic Viscometer with VISCPRO® Instruction & Operation Manual
If the Sample Input window does not appear when the software loads, click View Instrument from the Main menu, then click the desired instrument group (type of instrument, e.g. miniPV Series, CCS, CAV -2100) from the list of available instruments and click OK. If the Available Instruments list box is blank, your miniPV Series instrument may not be on-line. Check cable connections and make certain the unit power switch is ON.
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Instrument Company
Checking configuration
Initial configuration
The installation CD-ROM copy of the SAMPLES.MDB file contains initial factory calibration data unique to that instrument.NOTE
If you wish to restore the original configuration, archive your sample data before doing so (see Chapter 13 for information on using the Database Manager software). Then copy the original SAMPLES.MDB file from the CD-ROM to the database directory corresponding to your operating system (see table, previous page).
Follow the procedures in the next several sections of this chapter to verify/edit the instrument and calibration settings to ensure that they conform to the actual characteristics of your CANNON
®
instrument.
9
Configuration protection
Logging in
It is not necessary to log in to view current instrument settings. However, to change the configuration settings, you must log in to the security system as a manager. The software is installed with a default Manager account. This account has no password, allowing any operator access to manager-level software functions as long as the password is not acti­vated/changed. If you would like to engage the full-release security options, see Security Options in Chapter 4 for instructions.
1. Use your mouse to click Main from the VISCPRO® menu bar.
2. Click Log In from the Main menu options.
3. Click on the (arrow) on the right side of the User Name: list box
to display the list of registered users.
4. Click Manager. Do NOT enter a password unless you have previ-
ously set up the Manager account with a password.
5. Click OK. The Log In window will close automatically and you will
be logged in as management personnel.
Checking Instrument Settings
1. Use your mouse to click (select) Configure from the VISCPRO
menu bar.
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®
miniPV-Series Automatic Viscometer with VISCPRO® Instruction & Operation Manual
Version 1.a— January, 2011; CANNON
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®
Instrument Company
®
10
2. Select your instrument from the list of available instruments (there
may be only one instrument in the list).
3. Select Instrument Settings from the list of configuration options.
The Instrument Settings window will appear .
You will use the Instrument Settings window (see below) to describe and control miniPV Series instrument operational features. These settings affect the instrument as a whole. Check the instrument settings for your instrument per the instructions below , and make any necessary changes:
Prompt options
CANNON
The Instrument Settings window
Use the ID field to input instrument identification information using up to 16 alphanumeric characters.
The S/N: field (non-editable) indicates the serial number from the label on the miniPV Series rear service panel.
The Prompt for Check Standards options permit you to set a computer- ized “alarm clock” which will pop up a message reminder to run a check standard based on the schedule you set with the control. Notice that you can specify a reminder after “x” number of days and/or “x” number of samples. Click the check box(es) to enable/disable each reminder.
When you have verified all settings, click OK.
®
miniPV-Series Automatic Viscometer with VISCPRO® Instruction & Operation Manual
Version 1.a— January, 2011; CANNON
2139 High Tech Road • State College, PA 16803 • USA
®
Instrument Company
Viewing/editing setup information
11
NOTE
For first-time installation, make certain that the factory-prepared Configura­tion file has been copied to the Default Data directory per instructions on page 7 of manual. If your instrument has already been configured, you can use the instructions in this section of the manual to check or, if necessary, change the instrument settings.
1. Click Configure from the VISCPRO® menu bar.
2. Select your instrument group and instrument from the list of available
instruments.
3. Select Tray Settings: T ube and Bath from the list of configuration
options. The T ray Settings: Tube and Bath window will appear.
CANNON
The Tray Settings: Tube and Bath window
The T ray Settings: T ube and Bath window contains setup information for each tube associated with your instrument. On multiple-tube CAN­NON instruments, you can click on the tube tabs to see the setup infor­mation for different tubes.
4. Verify that the tube serial number ( Tube S/N) is correct. If it is not,
input the correct serial number in the text box.
Each tube should have
a unique serial number!
5. Verify the presence of calibration
values (C and E) for each bulb. If calibration data is not available, the default values are C=1 and E=0.
Sample calibration constants
®
miniPV-Series Automatic Viscometer with VISCPRO® Instruction & Operation Manual
Version 1.a— January, 2011; CANNON
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®
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12
Manually changing tube calibration constants
If you discovered any errors in the values of the calibration constants (see previous section), follow the directions in this section to manually correct them using calibration information previously obtained for your unit. If the calibration values are correct, instrument setup is complete.
Procedure
NOTE
This procedure for manually entering/changing calibration constants bypasses the normal calibration procedure. T o ensure the most accurate viscosity readings, CANNON® Instrument Company recommends that the instrument be calibrated per the calibration procedure outlined in Chapter 3.
1. Log in as a Manager and click Configure from the VISCPRO
®
menu bar.
2. Select your instrument from the list of available instruments.
3. Select Calibration from the list of configuration options. The Cali-
bration window will appear (see next page).
The Calibration window provides controls for calibrating each bulb of
any viscometer associated with your instrument. You can click on the bulb spin controls
to display current constants and valid check standard
data available for calibration of each bulb.
1. Make sure that the spin controls
for Bulb are set to “1”:
CANNON
This corresponds to the bottom bulb in the tube.
2. Check the values for the calibration constant(s) as they appear at the
bottom of the window:
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The Calibration window
Compare this value to your archive of the calibration constant data (if available) for bulb 1. The values should be identical.
3. If they are not, place your cursor in the appropriate field, delete the entry, then type the correct values for the constant in the text box.
13
4. Click Update tube
5. Use the bulb spin controls
to select the other bulb(s) for which
you noted calibration constant errors. Input the correct values for
Make certain to click Update Tube after you have corrected
each. C and E calibration values for each bulb BEFORE selecting the next bulb.
6. When you have entered corrected constant values for each bulb on both tubes, click
to exit the Calibration window.
You have verified the software configuration of VISCPRO samples with your instrument, follow the instructions in Chapter 2. For additional details regarding operating procedures for your instrument or software, consult the appropriate section of this manual.
Checking Wash and Advanced Settings
T o check Wash Settings for your miniPV Series instrument, click Config­ure from the VISCPRO menu options and select the desired instrument.
Then click Tray Settings: Wash. The Tray Settings: Wash window will appear.
.
®
. To test
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Compare the values in the Tray Settings: W ash window with your archived values and make any necessary changes; then click OK.
T o check Advanced Settings for your miniPV Series instrument, click Configure from the VISCPRO menu options and select the desired instrument. Then click Tray Settings: Advanced. The Tray Settings: Advanced window will appear .
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Compare the values in the Tray Settings: Advanced window with your archived values and make any necessary changes; then click OK.
Preparing the miniPV Series for testing
Inserting the miniPV Series temperature probes/reference thermometer
15
Inserting the probes
miniPV Series top bath flange
The temperature probe and thermal fuse probe are semi-permanently installed. Initial installation or replacement requires removal of the top cover of the bath unit. The probes are inserted through the narrow aperture on the top bath flange and held in place with a sliding metal plate (friction fitting) secured with a thumbscrew .
Inserting the thermometer
CAUTION
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The ASTM reference thermometer/adapter assembly can be inserted through the grommet in the bath top cover and through the larger circular aperture on the top bath flange (see photo image above). The assembly includes a stop collar with set screw that can be adjusted to vary the thermometer height.
Do NOT insert a reference thermometer while the miniPV Series bath impeller is operating, as damage to the thermometer and/or viscometer tube may result. Make certain to insert the appropriate reference thermom­eter for the current bath temperature! Use appropriate safety procedures when handling the thermometer, as it contains mercury .
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Adjusting Vacuum/Pressure settings
T o adjust the vacuum setting for the miniPV Series, click Service from the VISCPRO menu options and select the desired instrument group and instrument. Then click Adjust Vacuum/Pressure to open the Adjust Vacuum/Pressure window.
Select the desired adjustment (vacuum or pressure) and then follow the screen prompts to complete the adjustment procedure, using the appropri­ate controls on the instrument side (“ear”) panel. The prompts will display recommended vacuum/pressure settings and will also indicate how adjustments may be made to alter the settings.
Setting bath temperature
WARNING
Prior to setting the bath temperature, ensure that the reference thermo­meter in the bath is suitable for the desired temperature range. If not, remove thermometer from the bath. If the bath temperature rises above the range of the thermometer, it may be damaged. Mercury thermo-meters pose particular problems, since mercury from a damaged thermo-meter may circulate with bath fluid.
To set the temperature:
1. Load the VISCPRO® software and click Configuration.
2. Select the miniPV Series from the list of available instruments and
click T ray Settings: T ube and Bath.
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3. Select the desired unit of temperature measurement (°C or °F).
4. Type the desired temperature in the Bath Temp: field. Acceptable
NOTES
The miniPV Series will not allow sample testing until the instrument has equilibrated temperature at the test temperature.
T o cancel temperature selection before completing the procedure, click Cancel.
After the target temperature has been set, the miniPV Series bath temperature will be adjusted to the target temperature and the bath will equilibrate at the test temperature. The VISCPRO II software always displays the current and target bath temperature in the Sample Input window.
Checking wash functions
T o ensure function of the solvent wash system, follow the procedure below:
1. Place an empty vial in the sample tray position 1.
values are any numbers between 20°C and 100°C. If necessary, you may use the decimal point key to input temperature to the nearest
0.01°C. Press OK to save the temperature setting.
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2. Select Wash viscometer tube to open the Wash viscometer tube
window .
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3. Click Begin Wash to initiate the wash cycle. The Status: indicator
will display and update current actions.
Bypass .... option
NOTES
Training tube sensors
NOTES
CAUTION
T o begin washing an evacuated sample cup, click the option box to make certain that the Bypass initial cup evacuation option is selected. Do not use this option with a filled cup or the cup will overflow.
4. When the Wash cycle has been completed, click Done to exit the Wash viscometer tube window.
The Wash operation cannot be executed if the tube is currently running a sample. To terminate the Wash cycle at any time, click Abort W ash.
The Wash viscometer tube function overrides automatic miniPV Series software operations. Verify that the tubes are clean and dry before initiat­ing computer-controlled sample testing.
miniPV Series tube sensors must be trained in order for the instrument to properly perform test functions. To train miniPV Series sensors, follow the instructions in Chapter 3.
The temperature should be calibrated prior to training the miniPV Series tube sensors.
Calibrating the miniPV Series
Notes on computer-directed miniPV Series operation
Reporting data
CANNON
To ensure accurate test results, your instrument may need to be cali­brated. If necessary , follow the instructions in Chapter 3 to calibrate your miniPV Series temperature probe and viscometer tube.
A computer is required for miniPV Series operation. The computer provides for automatic control of miniPV Series functions using the VISCPRO® controlling software. Computer control permits data entry of up to ten different sample IDs. Each of the identified samples can then be tested with the miniPV Series instrument.
Test data for the samples is automatically saved to the VISCPRO database for future reporting/data collection. Additionally , several reports (analyses) may be used to calculate and display kinematic viscosity and viscosity index (VI) values. See the chapters on VISCPRO® analyses for further information.
All analyses provide a dynamic reporting option which can dynamically display and transmit test results as testing is completed. Data can be sent to your computer screen, printer, and/or serial port for in-house data collection. See Chapter 6 for more information on configuring analyses.
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CHAPTER
19
2
Turning on the miniPV Series
Testing samples
Loading software
TESTING SAMPLES WITH THE
miniPV Series
This chapter of the manual will provide information on testing samples using the miniPV Series. Observe the safety cautions noted in the introductory chapter when operating equipment. The miniPV Series should only be operated by qualified personnel.
Turn on the miniPV Series Bath Unit using the power switch on the power supply unit.
1. Turn on the computer and load the miniPV Series software by double-clicking the VISCPRO
®
II icon on the Desktop.
NOTES
NOTES
If the software is already loaded, use your computer mouse to click Main from the menu bar and click Poll for Instruments from the Main menu options. This will establish communications between the computer and the on-line instrument.
Permit the bath to stabilize at test temperature before testing samples.
2. Pour sample material into the glass vial(s). For 20 mL vials, fill only half full, as the viscometer tube will displace sample in the vial. Approximately 10 mL of sample should be sufficient for testing in either bulb of the viscometer.
Do not overfill the vials. Sample overflow may create problems for the tube cleaning cycle.
You should periodically test calibration check st andards per your estab- lished laboratory procedures. Recalibrate the miniPV Series (see Chapter 3, Calibration) if result variance warrants.
3. Place the sample vials in the carousel.
4 Check the thermometer in the temperature bath to
make sure the bath is holding the proper tempera­ture. If necessary, calibrate the miniPV Series temperature control probe using the temperature calibration procedure in Chapter 3.
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5. Open the View Instrument Group window (if it is not already open) by clicking View Instrument from the Main menu and selecting the desired instrument group from the list box (see Chapter 4 for more information).
The View Instrument Group window
6. Select the desired group ID and click OK to display the Sample Input View .
The Samle Input window (miniPV Series four--bath system)
Then click the Tray tab corresponding with the desired miniPV Series.
7. Double-click on Sample ID (1) with the left mouse button to access the sample ID data entry field (or press 2).
8. Enter sample ID information in the sample list box using your com­puter keyboard. After you have typed the sample ID, press the T key to complete the entry and move the cursor to the next Sample ID field. Or press R to complete the entry.
NOTE
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Once sample information is entered, the software automatically assigns a sample action, Measure Sample Viscosity, for the sample. If you do not
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enter a sample ID, the sample is automatically labeled Unknown. T o select or change a sample action, highlight the appropriate Sample
ID(s) using the mouse or arrow keys, then click the RIGHT mouse button to access sample action options:
No action Determine Solution Relative V iscosity Determine Blank (Solvent) V iscosity Determine Solvent V iscosity Verify Known RV Measure Kinematic Viscosity Verify Known KV
No action: If No action is selected, all information for that sample position will be cleared and that carousel position will not be tested.
Determine Solution RV If Determine Solution Relative Viscosity is selected as the test option for a sample, the Polymer Sample Measure­ment Options window will open, permitting data entry of relevant param­eters for the determination of RV. For information on data entry options,
21
Determine Solvent Viscosity If Determine Solvent Viscosity is se­lected as the test option for a sample, the Polymer Sample Measurement Options window will open,
Verify Known KV/RV If Verify Known RV (relative viscosity) or Verify Known KV (kinematic viscosity) are selected as the test option for a sample, the Polymer Sample Measurement Options window will include a new data entry field, RV or Check Standard Viscosity, which permits the user to enter the known RV or KV of the sample: This information will permit the VISCPRO software to compare calculated RV or KV values with known values to determine the accuracy of current calibration and machine performance. Measure Kinematic Viscosity If Measure Kine­matic Viscosity is selected as the test option for a sample, the VISCPRO software will calculate kinematic viscosity for the sample using the sample drop time and ASTM D 445 formulas.
Defining and using a solvent blank for RV analysis
Using a solvent blank Relative viscosity by definition is a ratio between the absolute viscosity* of a solution containing a solvent and sample material, and the absolute viscosity* of the pure solvent . VISCPRO calculates this ratio by comparing sample drop times for the solution and the solvent “blank”. The significance of the resultant value is enhanced as two additional variables are taken into account—sample/solvent density and (with drop times under 200 seconds) an empirically-determined kinetic energy correction constant.
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*The term absolute viscosity , as used in this manual, is also known as dynamic viscosity . For the purpose of VISCPRO® software viscosity
calculations, and per ASTM D 2857 specifications, the absolute viscosity
is defined by the equation ç = Ctñ - Eñ/t 2 where C is a constant, t is the drop time, ñ is the solution or solvent density and E is the kinetic energy
correction constant.
Relative viscosity calculation
The relative viscosity (RV) ratio (solute to solvent blank) is therefore defined by the equation:
Software selection of blank
Since determination of a relative viscosity involves a comparison of solution and blank, the VISCPRO controlling software requires the identification of a blank for any samples tested using the Determine Solution Relative Viscosity sample action. The blank is ordinarily selected from a list of solvents main­tained by the VISCPRO database. This list is accessible from the Polymer Measurement Sample Options window by using the drop-down list feature:
To display the list, click on the arrow. If the correct blank has not yet been defined, the user may create a new blank by typing an ID for the blank into the open field in the Polymer Measurement Sample Options window:
Procedure for blank definition
New blanks are created by testing the solvent in the miniPV using the Determine Solvent V iscosity sample action. Follow the procedure for
testing samples
1. Select Determine Solvent Viscosity as the sample action for the desired sample.
2. Enter an ID for each blank that includes both a description of the blank and also the temperature at which that blank is to be tested in the miniPV. The blank must be tested at the same temperature intended for the solution
NOTE
CANNON
In some MiniPV applications involving dilute solutions, it may not be necessary to input the density for the solvent blank and/or solution. If you choose not to input solvent density for either the blank or for the sample,
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the density of both will not be included in relative viscosity calculations.
Unity Reference blank
A preexistent blank, Unity Reference, is hard-coded in the VISCPRO® software with a value of “1”. Users selecting this blank when running an
RV sample are effectively calculating the kinematic viscosity of the solution in
a manner which permits them to use VISCPRO® polymer report options.
Testing volatile samples
The environment for viscosity measurement using the MiniPV AIRBATH and compound viscometer is much different than it would be with a conventional liquid bath and a U-shaped viscometer. Because of the continuous downward flow of air in the AIRBATH, evaporation of
23
NOTES
sample components have the potential to adversely affect the analysis. This
is because evaporation changes the composition of the sample and may also affect temperature stability). If you are testing at higher temperatures and/or with samples containing components which may evaporate during the analysis, cover the sample with aluminum foil or other easily penetrable membrane and secure with the “O” ring and cap supplied for that purpose with the MiniPV. This will seal the sample until the viscosity measurement is performed. Then
the viscometer tip penetrates the aluminum foil/membrane and performs the entire analysis without withdrawing completely from the sample vial.
If the aluminum foil has been penetrated and the sample has remained in the analysis chamber for more than a few minutes, do not attempt to reuse the sample. A new sample should be prepared.
CANNON
It is especially important to cover the samples when performing solution viscosity analysis of polymers. Even a slight change of composition caused by solvent evaporation may cause significant error. Even samples that are high in viscosity may still contain volatile compo-
nents;
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these samples should also be covered before analysis. Most lubricating oils, because they are manufactured at high temperatures and low pres­sures, do not contain significant volatile components and can be analyzed without being covered.
The PolyVISC SPS Solution Preparation System from Cannon Instrument Company is a semi-automated solution preparation system that can be used with the minPV instruments. Contact Cannon for more information.
NOTE
Running check standards
NOTE
For additional information on software data entry features, including multiple sample selection and cut & paste options, see Testing samples— software options in Chapter 4.
If Verify Known KV is selected as the test option for a sample, the Viscosity Action window will open automatically. Enter the neces-
sary check standard data, including the Check St andard viscosity from the standard bottle, and click OK to complete data entry. To revise or confirm standard data, right-click on the desired sample ID from the list box and select Configure from the popup menu choices.
See Chapter 4 for additional information on the Viscosity Action window .
9. Continue entering sample information for all desired trays. When
sample ID data entry is complete, check the Tray Status window to verify that all trays are ready for testing.
10. Click on the RUN button at the bottom of the Sample Input window. The Select Trays window will open if more than one miniPV Series instrument is online.
11. If necessary, click on the check box(es) to select the desired pre­pared “tray” (sample sequence) for automatic testing. For the miniPV Series, a tray corresponds to the miniPV Series instrument. Then click OK to begin the miniPV Series test(s).
Pausing a test
NOTE
Resuming a test
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T o temporarily halt testing for a given tube/sample, click the Pause button from the Sample Input window. Then select the desired tray (miniPV Series instrument) and pause action(s) from the Select Trays window (Pause Now will immediately pause test actions; Pause after current sample will pause testing after the current test is complete). Click OK to pause testing for the selected tray(s).
If the test was paused prior to the initiation of the Wash cycle, drop time data for that sample will be discarded.
To resume test actions for paused trays, click the Resume button from the Sample Input window. Then select the desired trays from the Select Trays window. Click OK to resume sample testing (see note above).
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Aborting a test
25
T o permanently halt testing for a given tube/tray , click the Abort button from the Sample Input window. Then select the desired trays from the Select Trays window. Click OK to abort testing for the selected tray.
NOTE
Concluding a test
CAUTION
Aborting a test clears all sample test information for that tray . If test actions are aborted, it is the responsibility of the user to restore the instrument to a safe state before running tests (see Service menu options in chapter 4 for more information on tube washing and drying).
After automatic testing has been completed, make certain that:
1. the sample vial carrier is in the lowered position.
Use appropriate procedures when handling warm sample vials to avoid the possibility of burns.
2. the Machine Status (as indicated in the VISCPRO® Sample Input Machine Status window), is READY, and
3. the Tray Status for the tube, as indicated in the VISCPRO
®
Sample Input T ray S tatus window , is IDLE. Kinematic viscosity for any tested samples will be displayed in the Sample Action column in the action list for the selected tube.
NOTE
To review status of other online instruments, click the tube tab corre­sponding to the desired instrument (see next section).
If necessary, wipe any excess oil from the base of the miniPV Series, sample vial and vial holder using an absorbent paper towel. If necessary , clean these components before reuse by wiping with a paper towel wetted with appropriate solvent.
Working with Instrument Groups
VISCPRO II provides a convenient interface for working with multiple CANNON instruments simultaneously . Rather than requiring the user to open individual Instrument V iews for each online instrument, the Sample Input window (formerly the Instrument View window in VISCPRO) provides individual tabs for each viscometer tube, making it easy to enter sample information for up to four different instruments. The Machine Status window makes it possible to monitor the performance of all instruments in an Instrument Group simultaneously .
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Here’s how it works: Just click Main/V iew Instrument from the VISCPRO II interface to open the View Instrument Group window, which displays all CANNON instrument types communicating with your computer. Then select the desired instrument group (all instruments in a single group communicate with the computer via the same COM port).
Once you have opened the desired instrument group, the Sample Input window will appear. Individual TABBED PAGES now make it possible to enter sample information for any viscometer in the instrument group.
The Machine Status window
You can toggle back and forth between the Sample Input window and
the new instrument group Machine Status window by pressing Ctrl-Page Down.
Monitoring instrument status
You can monitor the status of all instruments in an instrument group by pressing Ctrl-Page Down from the Sample Input window to display the
Machine Status window. To return to the Sample Input window, press Ctrl-Page Down again.In the image above, instruments three and four
do not exist but could be accommodated in this instrument group. The “placeholders” for these instruments are greyed out to indicate that additional machines are not yet online for the group.
If additional instruments are online but are not appearing in the correct instrument group, check network connections and make certain that each instrument is turned on and functioning normally . Then click Main/Poll for Instruments to refresh communication with online instruments.
Group configuration
If your laboratory had 3 miniPV Series instruments with RS-485 connec­tions, all could communicate with the computer via a single COM port, provided that they were all assigned different instrument addresses. Each instrument group provides its own Instrument V iew customized for that
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instrument type. The number of instruments that can be assigned per group varies per instrument type. The Cold-Cranking Simulator (CCS) design allows only one instrument per group for that instrument type.
When a new type of instrument is found on a port, the VISCPRO software automatically creates a group for that instrument. The maxi­mum number of instruments that can exist on that port is determined by the nature of the instrument. A single COM port may be used for communication with multiple instrument TYPES as long as the total number of instruments associated with the port does not exceed the maximum number of instruments capable of being displayed in the group that can contain the least number of instruments (usually four).
Configuring the Machine Status window to correspond with multiple-instrument placement
It is desirable to configure your miniPV Series instruments so that the VISCPRO software computer interface display for the instrument group (Machine St atus window) corresponds with the actual physical place­ment of the multiple instruments in the laboratory .
Use a screwdriver to adjust the arrow on the instrument address dial (inside the miniPV Series left wing panel) to assign each instrument in the group a unique address using numbers 1-4 from left to right. NOTE
Do not use “0” or “9” as an instrument address for this configuration option.
27
When configured per the above instructions, the instruments will always be displayed in the same “sequence” in the Machine Status window even if a single instrument in the series is not online.
Viewing test results
Data obtained from all miniPV Series instruments during sample testing is promptly displayed in the Sample Input window (Sample Action column). It is also stored in the central VISCPRO® database. To view historical data, you must create an analysis requesting the desired sample information.
The following analyses are shipped with the software:
CA V Data T able—displays test information of your choosing.Error Log Table–lists error messages and related data.Standard VI Table—provides a report of matched samples according
Error Data, Sample Data and VI Data Export Analyses–config-
Creating an analysis
to configuration information you provide.
ures data for output to a file, parallel port, or serial port.
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The following procedure creates a standard CAV Data Table which will be updated as samples are tested. For additional information on analyses, consult the manual chapter corresponding to the desired analysis.
1. Select Analyses from the VISCPRO
®
primary menu options.
2. Select View Analysis ... from the Analyses menu. The Choose Analysis window will appear.
3. Double-click on Basic Package.
4. Click on CAV Data Table to reveal the available analyses.
5. Click on the Define and Open New Configuration radio button (or verify that the option is selected).
6. Click OK. The Sample Analysis Configuration window will appear. The Sample Analysis Configuration window consists of tabbed pages with filter options appropriate for the analysis.
7. Click on Date Filter and then click the Use Dynamic Update check box. This option will update the displayed analysis with new data as samples are tested.
NOTE
For additional information on analysis filter options, consult the manual chapter corresponding to the desired analysis.
8. Click on the spin controls to select a value for the sample time window (the time parameter you desire for the report of recent test data).
9. Configure any other report options (see Chapter 7 for details). Then click OK. The program will prompt you to save the analysis configu­ration.
10. Click Yes. (OR click NO to display the analysis without saving it.)
11. If Yes was selected, use your keyboard to type the name you wish to use for the analysis in the text box.
12. Click OK. The analysis will be saved and data obtained during the selected time window will be displayed.
Configuring the VI Matcher (optional)
VI Matching with VISCPRO
®
The VI Matcher is a VISCPRO® software feature that functions in tandem with the VI analyses to enable Viscosity Index (VI) calculation from sample data residing in the VISCPRO® database. To configure the VI Matcher, see Configuring the VI Matcher in Chapter 4.
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CHAPTER
29
3
CALIBRATING THE miniPV Series
Calibration is essential for the proper operation of the miniPV Series. The miniPV Series is calibrated before it is shipped to the customer . It should be calibrated again after installation. Frequency of recalibration is at the discretion of the user. There are two types of calibrations—the tempera­ture calibration ensures that the temperature probe readings conform to the reference thermometer, and the standard calibration ensures that the mathematical constants used in calculation of kinematic viscosity from sample flow times accurately reflect the unique properties of the viscom­eter tube. The temperature calibration should be performed first.
Calibrating temperature
Periodically , the temperature display of the miniPV Series Bath Unit should be verified using a reference thermometer for that temperature. The miniPV Series temperature control system permits the calibration of the bath temperature to agree with any temperature reference standard, including an ASTM thermometer mounted within the bath. The bath can be calibrated by the user whenever the bath temperature is stable for any given target temperature in degrees Celsius or Fahrenheit.
NOTE
The calibration data is stored in the VISCPRO II software database.
It is important to remember when moving the minAV-X from One PC to another, the samples.mdb file should also be copied to the new PC to keep from having to recalibrate the instrument. After calibrating the temperature (or changing any configuration setting) the user should save the instrument and tray settings- Save Instrument and Tray Settings under the Configure menu. [This will insure that the proper settings will be available if something happens, such as the serial port is changed.]
Calibration procedure
NOTE Depending on security level settings, it may be necessary for you to log in
as a manager to complete the calibration.
1. Set the bath to the desired calibration temperature and make certain the reference thermometer temperature has stabilized.
2. Click Service/Temperature Calibration for the desired instrument.
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3. To calibrate temperature, enter the current temperature reading to the nearest 0.01°C into the Temperature: field, subject to the following:
A decimal point MAY be included as an entry. It should be preceded
by at least two numbers or a "0".
The entered actual temperature must not cause a correction in
temperature greater than +/- 5.0 degrees.
Data entry errors
General/Current Offsets
Training sensors
Multiple or successive entries of correction for any temperature are permissible. A newly entered corrected temperature is mathematically compensated with the previously entered correction and is stored in memory by the onboard microprocessor as the latest correction.
The miniPV Series will not accept temperature reference data outside the parameters noted previously. If the amount of the correction (delta to displayed temperature) is too large, the correction will not be accepted.
The General Bath Offset is factory-preset value affecting temperature control at all temperatures and should not ordinarily be changed. The Current Offset is the temperature adjustment applied to a particular temperature to conform bath temperature control to your temperature reference . Always click the radio button for the Apply As Current Option when calibrating for a specific temperature.
It is necessary to train instrument sensors in preparation for sample testing at a specific temperature. The training procedure establishes the proper power levels for sensor detection of the sample meniscus. The sensor training data is then stored by the miniPV Series instrument, and recalled when testing at that temperature. The sensor training procedure requires approximately 30 minutes (longer at lower temperatures).
NOTE
CANNON
You will be prompted to train sensors by the instrument hardware or software whenever a new temperature is selected for miniPV Series operation. Y ou will be unable to test samples until the training has been
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completed. Sensor training data remains valid until the sensors are retrained at the same temperature. Retraining is necessary only when the viscometer tube is changed, or if sensor performance changes over time.
31
Train Tube Sensors
T o train tube sensors, click Service menu and select the Train T ube Sensors menu for the desired instrument. The Train Tube Sensors
window will open.
Prewash option: Click the Prewash option if the tube is not clean and dry . VISCPRO will initiate a cleaning cycle using current wash configu­ration settings prior to initiating the sensor training procedure.
Trip Points Only option: Click the Trip Point s Only option to adjust the sensor trip points without setting the voltages. This is useful if it is neccessary to adjust trip points on sensors for which voltages have already been set.
After selecting the desired training options click START and follow the software prompts to complete the sensor training.
Standard tube calibration
During standard calibration, the software uses check standard data obtained from miniPV Series tests to perform the mathematical calcula­tions necessary to derive new constants for each timing bulb of the viscometer tube. Then the VISCPRO software displays the new con­stants and computes a viscosity (in cSt) for each sample using the actual flow time of the check standards. The resulting viscosity calculation is compared with the known viscosity of the standard; absolute and com­parative data is displayed on the computer screen.
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NOTES
Calibration procedure
The software allows the operator to manually change the constants if neces­sary to more closely match the known viscosities of the standards.
A separate calibration must be performed for each temperature at which samples will be tested.
1. Assemble a group of CANNON® standard oils with known kine­matic viscosities for calibration. Use at least two different standards for each bulb. Refer to the following table when choosing the appro­priate standards.
elbaTnoitceleSliOnoitarbilaC
1BLUBGNIMIT
)1-2srotsimreht(
timiltScrewolx001-01timiltScrewolx01-1
2. Complete sample ID data entry for each standard.
3. After entering each sample ID, click on the highlighted ID entry using the RIGHT mouse button (or press 5). Then select Verify Known KV from the popup window. The Viscosity Action window will appear.
2BLUBGNIMIT
)1-3srotsimreht(
NOTE
4. Enter the viscosity (in centistokes) for each sample from the standard bottle, along with other desired configuration settings; then click OK .
If a check standard viscosity has NOT been entered (or if the default viscosity value of 1.000 has not been accepted by the user), a yellow arrow (current sample) or red circle caution symbol will appear to the left of the sample ID:
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CAUTION
Make certain to enter the correct check standard viscosity (in centistokes) BEFORE running the standards. Incorrect data entry may skew future calibration results.
5. Click Run, then select the appropriate sample trays to test the standards.
6. When testing is completed, use the VISCPRO
®
software to log on as
a Manager (Main/Log In) in order to access the calibration menu.
7. Select the desired miniPV Series instrument from the Configure menu; then select Calibration.
The Calibration window will open.
8. Select the date range for acceptable calibration data by using the No older than [x] days spin controls
to set the date search param-
eters (if “1” is selected, only data from the standards run in the last 24 hours will be listed). Any check standards from the time frame you specified which are appropriate for calibration calculations will appear in the window list box.
CANNON
The miniPV Series Calibration window
9. Use the spin controls
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to select the desired Bulb for calibration.
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Selecting samples
NOTE
Comparing current/new data
10. Select (or deselect) the specific sample entries you desire to use for calibration from the displayed list by clicking on them. T o select a range of samples, highlight the first sample and click on the last sample while simultaneously pressing the S key . T o select several individual samples for calculation, hold down the C key and click on each of the desired samples.
You must select at least two entries or the sof tware will not recalculate the constants.
11. When the desired samples have been selected, click on Calculate New Constants. The new constant(s) for that bulb, C and E, will be
displayed in their respective fields at the bottom of the window . You may evaluate the accuracy of the new calibration constants by
comparing the known viscosity for the standard with the calculated viscosity for each standard selected for the new calibration. This difference is displayed as a percentage in the last column (% Diff) of the updated sample list box.
The Show Calibration Data button is a toggle that will permit you to compare current and new calibration data and constant information. Press the Show Calibration Data button once to view the current calibration information. Note that the button name will change to Display Sample Data. Press the button again to display the new calibration parameters.
NOTE
Saving a calibration
When/if you are satisfied with calculation results, click on Update Tube to save calibration values for the current configuration.
If the difference is still too great, repeat the calibration process until the difference falls within acceptable limits (refer to the precision statement in ASTM D 446). If the tube calibration fails repeatedly, refer to Chapter 5 for miniPV Series maintenance/service information.
12. When the new calibration constants are acceptable, click on Update tube to save the constants for the current instrument.
You must click Update tube before changing bulbs if you wish to save the new calibration constants for that bulb.
13. Repeat steps 8-12 for all the timing bulbs. When the proper constants for all the timing bulbs have been determined, close the Calibration window .
14. Test several standards to verify a successful calibration.
When calibration is complete, the calibration information is saved to the current instrument configuration and will be displayed in the Tray Set- tings: Tube and Bath window. This calibration information will remain
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in effect until the instrument is recalibrated at that same temperature, or until instrument and tray settings from a previously-saved instrument configuration are restored.
T o avoid losing valid calibration data, CANNON
®
recommends saving the instrument configuration settings after completing a new calibration (see Saving a configuration, chapter 4). The name for the instrument configuration might ordinarily identify the
instrument, the calibration date,
and the temperature:
35
EXAMPLE:
NOTE
miniPV Series calibration equations
Viscosity calculation equation
miniPV JAN10 40C
After the instrument configuration has been saved, calibration data may be restored at any time using the Restore Instrument & Tray Settings option from the Configure menu. Note that the Restore Instrument Settings and Restore Tray Settings check boxes must both be selected to restore instrument calibration data:
The Restore Instrument Settings and Restore Tray Settings options are security-protected at the Manager level.
In the miniPV Series, viscosity is calculated by using the viscosity calcu­lation equations as described in ASTM Methods D445 and D 446. Because samples running in the miniPV Series can have short flow times,
2
the kinetic energy correction term (E / t
) is used as prescribed in the aforementioned ASTM methods. The VISCPRO® software for Win­dows® performs all necessary calculations to derive constants C and E. These constants are used by the software when determining values for kinematic viscosity using sample drop times measured by the miniPV Series.
Kinematic Viscosity equation: v = C t - E / t
2
CANNON
Where: v= kinematic viscosity (cSt)
C = calibration constant (cSt/s) E = kinetic energy correction (cSt·s
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)
36
t = flow time (seconds)
NOTE
When calibrating the miniPV Series, the operator should analyze the viscosity standard using double determinations to obtain two flow times for each standard. The average of the two flow times is used as input data for the calibration program.
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CHAPTER
37
4
USING THE miniPV Series
VISCPRO® generic instrument interface
Your software for Windows® is comprised of a generic instrument interface (VISCPRO®) and a collection of instrument/analysis-specific modules. This chapter of the manual will explain the software options for the VISCPRO instrument software. Additional software modules, customized software, and any additional documentation for add-on software options (if avail­able), may be provided separately .
®
program and other modules commonly bundled with the
SOFTWARE
HELP system
NOTE
CANNON
VISCPRO windows
Your software supports a complete HELP system. To access HELP for the software, click the HELP option from the VISCPRO display. For context-sensitive HELP support for your interface, press 1 or click on the HELP buttons provided.
Because the VISCPRO menu options may not be visible to technician-operators.
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primary display with Instrument View and Analysis
®
®
software is security-protected, some documented
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primary
38
Main Menu
The View Instrument menu item opens the View Instrument Group window which permits you to select the desired test instrument type from the list of on-line instruments.
The View Instrument Group window
The View Instrument Group window is comprised of:
 The Instrument Group list box  Three button options (OK, Cancel, and Help).
View Instrument Group window button options:
Opens the Sample Input window for the selected instrument group and restores any configuration settings
for that group.
Closes the View Instrument Group window without opening a Sample Input window.
Accesses context-sensitive help.
Available Instrument s: The Instrument Group list box in the View Instrument window displays a list of all on-line instruments.
T o use the V iew Instrument Group window to open the desired instru­ment group from the list, click the GROUP ID associated with the desired instrument(s) to select it; then click OK.
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Security options
The Poll for Instruments menu item queries the hardware interface to
®
establish communications with CANNON
instruments attached to the
host computer. Use Poll for Instruments to establish a computer connection with
instruments which may have come “on line” after the software has been in operation. When the connection has been verified by the controlling software via the hardware interface, the instrument name will be added to the status bar at the bottom of the VISCPRO
®
window.
The VISCPRO® application offers a level-based security system with a log in procedure. This system ensures that available software functions are appropriate for the security level of the user.
Initial security settings will be completed during miniPV Series installation. Following installation, security options may be accessed and changed from the VISCPRO
®
Main menu by individuals who have the manager password.
Each user can be assigned a security level, which is used to determine permitted operations. Three security levels are defined by the software:
Technician (least privileged), Manager (intermediate privilege), and Service (maximum privilege–reserved for CANNON
®
Instrument
Company service personnel).
Initial security setup
NOTE
Users log in when using the software by typing their name and (optional) password in the Log In window (see next section). Different security levels offer different miniPV Series use options. Technicians are permit­ted to access operational features required for testing samples and performing other routine operations. Managers may access all advanced configuration and reporting options. The Service level permits access to all instrument and security parameters.
The VISCPRO® software installation creates a security account for one manager with a blank password. After VISCPRO® installation, a pass­word should be assigned for the manager using the Change Password menu option from Main. Managers may add or change accounts for technician status personnel.
Use the Log In feature to identify the miniPV Series operator and/or access security functions.
Once an operator is logged in, that operator’s name is associated with any sample data obtained during that VISCPRO session. The operator name may be included in analyses.
Procedure
CANNON
1. Click Log In from Main.
2. Select the desired name from the drop-down list box.
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3. Type the password in the Password field for the individual selected.
4. Click OK.
Use the Change Password feature to change the current user pass­word.
Procedure
Procedure
®
1. Log in to the VISCPRO
software using the Log In command from
Main.
2. Select Change Password from the Main menu options.
3. Type in the new password in the Password field.
4. Retype the password in the Confirm Your New Password field.
5. Click OK to save the new password and close the Change Pass-
word window.
Use the Update User Information feature to update the security list of authorized miniPV Series technicians and managers. User information can only be updated by an individual logged in with a higher security clearance than the user for which information is to be altered. Manager status is necessary to change Technician information. Service status is necessary to change Manager information. T o obtain Service status, it is necessary to select user CANNON Instrument Company from the Log In window and to type in the current CANNON® password. For the current password call CANNON® at (814) 353-8000.
1. Click Log In from Main.
NOTE
CANNON
2. Select your Manager or Service level user name from the User
Name list box. Input the correct password in the appropriate field.
3. Click OK.
4. Click Update User Information from Main.
5. Select the desired user from the User Name list box.
T o delete a user, just click Remove User after selecting the user name. The account will be immediately and permanently removed.
6. Enter and verify the desired password, and select user security status
using the appropriate list boxes.
7. Retype the password in the Confirm Password field.
8. Click Add or Update User to save your changes.
9. Click Done to exit the Change User List window.
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To use the Log Out feature, click Log Out from Main. The current
user will be logged out of the security list of authorized miniPV Series technicians and managers. The software will automatically reset to the lowest security level. Any ongoing test operations will con­tinue.
Adjusting Security Settings
VISCPRO® provides an interface to customize security settings for your facility. To adjust the security settings for your VISCPRO complete the procedure below:
1. Log in as a Manager.
2. Click Service and select the desired instrument. Then click Set
Security Levels.
Radio button options for analysis configuration
®
software,
41
The Set Security Levels window will open.
3. To make changes to security settings displayed in the window , click
the current security level for the software option you want to change; then click the desired setting (T echnician or Manager) from the drop­down box displaying the security levels. When you are done, click
OK to save your settings or click Cancel to exit the Set Security Levels window without making changes.
CANNON
The Set Security Options window
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Print/Print setup menu items
CAUTION
Analyses Menu
Select this standard Windows® print menu item to access the Windows
®
print window. Then select print options for the currently-active analysis/ report (see Analysis options).
Select this standard Windows® print menu item to access the print setup window . Check your printer driver documentation for additional informa­tion on print setup options.
Select the Exit option to exit ViscPRO. Or you may click on the application title bar.
Exiting the application aborts current tests. It is the responsibility of the user to restore the miniPV Series to a safe state using Wash Viscometer Tube functions from the Service menu before resuming miniPV Series testing.
Data obtained from all instruments during sample testing is stored in the central VISCPRO® database. To view data, you must create an analysis configuration requesting the desired sample information in the desired format. Analysis configurations can be saved and later restored. The analysis configuration options provide powerful tools for reporting sample information. Refer to Chapter 6 of this manual for general information on using the analysis options. For specific information regarding the indi­vidual analysis packages shipped with your software (e.g., CAV Data Table, VI Matching), consult the manual chapter for that particular analysis.
Each analysis generates a report based on instrument data in the VISCPRO software:
Analysis types
Error Data Export, Sample Data Export and VI Data Export
Error Log Table—lists error messages and related data.CA V Data Table—displays test information and selected calculated
Standard VI Table—provides a report of matched samples according
Analyses menu options
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database. The following analyses are shipped with the
analyses—configures data for output to a file, parallel port, or serial port.
data.
to configuration information you provide.
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The following VISCPRO® menu options are used to create and manage analyses:
View Analysis—opens the Choose Analysis window . See View
Analysis, below , for more details.
Report Title—opens the Designate Report Title window. Permits
data entry of up to three lines of text for the report title.
Configure Analysis—Accesses Configuration options. For informa-
tion on configuring analyses, consult Chapter 6 and the manual chapter corresponding to the particular analysis.
Save Configuration—Opens the Save Configuration window.
T ype the desired file name in the Save As: field and click OK to save the configuration.
43
NOTE
The Configure Analysis and Save Analysis options are only available from the Analyses menu when an analysis window is open.
Select View Analysis to select an analysis from a list of available analy­ses or define a new analysis.
T o display an analysis, click the View Analysis menu item from the
Analyses menu. The Choose Analysis window will appear . The Choose Analysis window provides a list of available analyses in a list
box on the left side of the window . The analyses are organized into similar groups using a directory tree structure.
NOTE
CANNON
The Choose Analysis window
“Unopened” report directories identified with the symbol contain one or more analysis packages. Click on the to reveal or conceal the list.
Select the desired analysis from the directory tree. After an analysis has been selected, you can configure the analysis to display the information you want from the central VISCPRO® database. The Choose Analysis window provides three options for doing this:
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Click the appropriate radio button . Then select the desired saved configuration (if any) and click OK:
Select Open Selected Analysis Configuration if you wish to
create and display the selected analysis using the saved configura­tion highlighted in the list box on the right side of the Choose Analysis window.
Select View and Open Existing Configuration if you wish to open
the configuration window for the analysis configuration highlighted in the list box on the right side of the Choose Analysis window .
Select Define and Open New Configuration to open the configu-
ration window using default settings for the selected analysis.
NOTE
Window Menu
For more information on defining and using configurations, see Chapter 6.
The Window menu provides options for scaling and arranging multiple windows/icons for screen display. In VISCPRO® you can also save and restore a specific window configuration.
Select this standard W indows® display menu item to arrange any minimized analysis/report or instrument windows at the bottom of the primary application window .
Select this W indows® display menu item to resize and regroup all open windows to view multiple on-screen reports/instruments. You may select horizontal or vertical tiling for more convenient viewing of data.
Select this standard W indows® display menu item to resize and regroup all open windows in an overlapping format which provides more space for the active window.
CANNON
Select this security-protected Manager-level menu item to save the current VISCPRO® screen configuration, including any currently-open analyses and Sample Input windows. To restore the saved configuration to the VISCPRO® display, click Restore Window Layout (see below).
This menu item restores the saved VISCPRO® screen configuration. Any currently-open analysis windows will be closed before the saved configuration is loaded. Also note that currently-open Sample Input/ Machine Status windows may be obscured by the restored configura­tion. To view these obscured windows, either click Window from the VISCPRO® primary display and select the desired instrument view OR
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right-click the appropriate group button on the status bar on the bottom of the primary window . Restoring a saved window configuration does not affect current miniPV Series sample testing operations.
miniPV Series module menu options
45
Configure menu
In addition to the VISCPRO software application modules for each type of CANNON
®
general instrument menu functions, unique
®
instrument generate additional interface options. The modules determine the charac­teristics, function and appearance of VISCPRO
®
software menus and
windows. These instrument-specific software options (under the Config- ure and Service menues) permit user control of important miniPV Series operations.
The Configure menu provides the user with a powerful tool for descrip­tion of miniPV Series instrument capabilities, and for customizing miniPV Series test procedures. Once configuration settings have been determined for optimum performance, the settings can be saved and restored using the Save Instrument (Configure menu) and View Instrument (Main menu) functions.
Initial factory configuration settings may be supplied on a configuration floppy disk. Additional configurations can be created to enhance test performance with different types of samples.
Configuration settings will need to be updated when instrument specifica­tions or components change (sample tray types, viscometer tubes, tube types, etc.).
Each of the configuration menu items is explained in detail in the follow­ing sections. T o access the configuration options, click Configure from the VISCPRO and instrument.
Print Instrument and Tray Settings
The Print Instrument and T ray Settings menu item prints instrument and tray settings. When you select this item, a standard Print window is opened. Select the desired print settings and click OK to print out a hard copy of the instrument and tray settings. You may wish to retain the printout for diagnostics, verification and record-keeping purposes.
Select Print Calibration Certificate to print calibration parameters for your current instrument configuration. After you select the Print Cali- bration Certificate option, the standard Windows Print dialog will be displayed. After you have selected your print options, the VISCPRO software will display the Save Calibration Data window . Input the filename and location if you wish to save an electronic archive of your printed calibration certificate to disk. Then click Save to save the data, or
®
primary display and select the desired instrument group
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Cancel to exit the Save Calibration Data window without saving the information. The calibration certificate will be printed after you exit the Save Calibration Data window.
CANNON Instrument Company recommends saving instrument and tray settings each time a new calibration is performed.
Select Save Instrument and Tray Settings to save certain current
instrument information, including instrument specifications and calibration data (Instrument Settings), basic and advanced operational parameters (Tray Settings), and previously-entered Sample ID information.
When you click the Save Instrument and Tray Settings menu item, the Save Configuration window will open.
CANNON
The Save Configuration window
Choose a name for the Configuration by entering it in the Save As: field. Y ou may also click on existing (saved) Configuration by clicking on the Configuration name in the Existing Configurations list box.
When you have selected a Configuration name, click OK to save the Configuration and exit the Save Configuration window . Or click Cancel to exit the window without saving the Configuration. You can also delete existing configurations by selecting them from the Existing Configurations list box and pressing the Delete button.
Select Restore Instrument and Tray Settings to restore certain instrument information, including instrument specifications and calibration data (Instrument settings) basic and advanced operational parameters (Tray Settings), and previously-entered Sample ID information.
When you click the Restore Instrument and Tray Settings menu option, the Restore Configuration window will open.
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Instrument Settings
The Restore Configuration window
This is a security-protected feature. Depending on the user-set configura­tion options, technician-level personnel may only be able to restore Sample ID information. Individuals logged in to VISCPRO as a Manager will be able to restore Instrument Settings and Tray Settings. To restore information, click on the check boxes corresponding to the desired parameters. Then click OK.
Select Instrument Settings to open the Instrument Settings window, which provides features for describing the miniPV Series and controlling the instrument. These settings apply to the instrument as a whole.
Use the ID field to input instrument identification information using up to 16 alphanumeric characters.
The S/N: field displays the instrument serial number stored by the operational firmware of the miniPV Series. This is a non-editable field.
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The miniPV Series Instrument Settings window
Click on this check box to activate a software counter which will gener­ate a warning for a tube whenever the specified number of days have elapsed without performance of the Verify Known KV sample action. Enter the number of days in the appropriate field.
Click on this check box to activate a software counter which will gener­ate a warning whenever the specified number of samples have been tested without performance of the Verify Known KV sample action. Enter the number of samples in the appropriate field.
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Instrument Settings window button options:
Tray Settings: Tube and Bath
Use the Tray Settings: Tube and Bath window to describe and control test parameters for the viscometer tube. Alter the settings using the instructions below . When you have achieved the desired configuration, save the current instrument settings by clicking OK. T o exit the configu­ration screen without saving your changes, click Cancel. T o restore software defaults, click Defaults.
saves the current instrument settings and exits the Instrument Settings window
.
restores the default configuration settings for several instrument options
closes the Instrument Settings window without saving any configuration changes.
49
CANNON
The Tray Settings: Tube and Bath window
T o complete the tray configuration: Use the T ube S/N: field to input the identifying tube serial number.
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NOTE For reporting and calibration purposes, each tube serial number value
should be unique for all instruments attached to a single computer.
Click on the Fast Run Tube check box if the viscometer tube is the fast run type. The Wet T ube option is required for some viscosity determina­tion protocols. If this option is checked, the miniPV Series automatic determination will be preceded by an untimed sample drop, coating the inside of the capillary with the sample material.
NOTE
Bath Temperature
CAUTION
Equilib. Tolerance
Settings for soak times may need to be reconfigured when the bath temperature setting is changed.
Input the desired temperature for the miniPV Series Bath corresponding to the selected tube in the Bath Temp: field and select the desired unit of temperature measurement by clicking on the corresponding radio button.
Changing bath temperature may necessitate removing the reference thermometer from the Bath Unit. See Inserting/removing the reference thermometer in Chapter 2 for information on the procedure. Damaged thermometers may contaminate the bath fluid.
Input the desired Equilib. Tolerance for the miniPV Series. The Equilib. Tolerance is when the target temperature is reached, and remains within the Equilibration Tolerance for least 30 seconds. The default and recom­mended value is 0.02.
Thermistors Radio Buttons
Soak Time Units Radio Buttons
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Select 2K or 15K depending on the thermistor value used in the installed tube.
Select the desired unit of time by clicking on the corresponding radio button.
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Soak time
51
Input the desired sample soak times for each bulb of the viscometer tube. The soak time is the length of time in which the sample will remain in the viscometer tube before being dropped. The soak time is important to ensure temperature equilibration of the sample. The range is from 0 to 240 based on which units of time the user selected from Soak Time Units.
Constants
Tray Settings: Test
NOTE
The Tray Settings: T ube and Bath screen displays the calibration constants (C and E) for each bulb of the viscometer tube. These values cannot be edited from the Tray Settings . . . screen. For information on determining bulb constants for viscometer tubes, see Calibration later in this chapter.
When you have completed the configuration and saved the current tray settings, you may wish to permanently store the current instrument settings using the Save Instrument and T ray Settings item in the Configure
menu for a given instrument.
The Tray Settings: Test window is used to select parameters for miniPV Series sample testing. Each sample drop is called a determina­tion. Multiple determinations are possible during testing of a single sample. Comparisons of sample drop results permit user regulation of test precision.
The Maximum Absolute Difference option permits you to input the maximum acceptable deviation for multi-drop samples, expressed as the difference in the sample drop times in seconds.
The Maximum % Difference option allows you to input the maximum acceptable deviation for multi-drop samples expressed as a percentage (0.35 is the default percentage difference allowable). Values from 0.01 to
99.99 are acceptable. If the difference between test drop times is greater than the acceptable deviation, the sample will be tested again until the deviation in drop times is less than the Maximum % Difference, or until the maximum number of determinations has been reached.
Tolerance parameters
Use greater
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The Maximum Determinations option permits you to select from 1-20 iterations of the test using the same sample.
Determine if the tolerance for differences between sample run times (determinability) is going to be decided by the absolute difference in drop time values (in seconds) or by the percentage difference between the drop times. Click on the appropriate check box to select your choice(s).
Enter the maximum acceptable difference in measured results when using multiple determinations (the default percent difference value is 0.35 percent and the default absolute difference value is 0.2 seconds).
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If both tolerance options are selected, the VISCPRO software will apply both criteria unless the
Use greater option is checked. If Use greater is checked, then the software will apply the less
exacting tolerance value when calculating/evaluating test results.
The Tray Settings: Test window
Use spread
Use mean
Determinations
The Use spread and Use mean radio button options determine the manner in which the VISCPRO mathematically determines which sample tests have met tolerance parameters. Testing is continued until a group of samples meets the tolerance parameters and the rules for sample drop time determination (see Determinations, below).
The Use spread option compares the individual drop time values for each test sample with the individual drop time values of the other samples. If a sample deviates from tolerance parameters when compared with any other sample in a grouping, the sample is eliminated from consideration.
The Use mean option compares the individual drop time values for each test sample with the mean (average) drop time represented by all samples in the group. If any sample in the group deviates from the mean by a value greater than the value specified in the tolerance parameters, the group is eliminated from consideration.
Select the determination option by clicking on the radio button corre­sponding to the appropriate determination method (Always perform
maximum determinations, Use successive determinations only, or Use any determinations).
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Selecting sample run required and maximum determination settings
53
NOTES
Tray Settings: Wash
Select the number of Required determinations by clicking on the
spin
controls (values from 1 to 4 are acceptable). In the same manner, select the Maximum number of determinations which can be run for the tube samples (values from 1 to 20 are acceptable).
VISCPRO determines the sample flow time by averaging the values of the sample runs which correspond to the chosen criteria.
If the Always perform maximum determinations radio button is selected, the last flow times will be used for the viscosity determination.
When you have completed the configuration and saved the current set­tings, you may wish to permanently store the settings using the Save Instrument and Tray Settings.
Use the Tray Settings: Wash window to determine wash settings. For multi-tube units, different wash settings may be selected for each tube
The Tray Settings: Wash window
Solvent rinse settings
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®
individually .
The solvent rinse settings for Solvent A and (if applicable) Solvent B are determined using the Tray Settings: Wash window . Select a value from 0 to 18 cycles for this option (the “0” setting turns the solvent option off). These settings determine the number of rinse cycles performed by the
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miniPV Series instrument after each test. Higher viscosity materials may require more rinses. Lower viscosity materials may require fewer rinses, depending on the effectiveness of the solvent.
Max Solvent fill time(s)
Solvent flush time(s)
The Max Solvent fill time(s) setting determines if/when the user re­ceives a screen prompt instructing him to check/refill the external solvent vessel. Select a value from 1 to 60 seconds for this option. The recom­mended default is 30 seconds. During this time, the VISCPRO software monitors the filling of an internal solvent chamber in preparation for solvent evacuation through the viscometer tube. The default setting should allow adequate time for the required volume of solvent (approxi­mately 12 mL) to be introduced into the internal solvent chamber under normal conditions of vacuum/pressure. If the Max Solvent fill time(s) setting is too low, the internal solvent chamber may not be completely filled with solvent in the time allotted and the screen prompt may be displayed even when the external solvent vessel contains solvent.
The Solvent flush time(s) setting determines the amount of time (in seconds) that the solvent pump will continue to operate after the solvent chamber has emptied all solvent into the sample vial during a wash. This allows time for the lines and viscometer tube to be purged of solvent. Select a value from 1 to 60 seconds for this option. The time will vary with the pressure setting (miniPV Series right front “ear” panel).
Tube tip soak time(s)
Final dry time(s)
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The Tube tip soak time(s): setting determines the length of time that the miniPV Series tube tip will soak in the solvent after the solvent has been introduced into the sample vial. Select a value from 1 to 120 seconds for this option. This is the amount of time that will be used for both a solvent soak and a final solvent “bubble cleaning” following the evacuation of solvent from the internal solvent chamber.
The Final dry time(s) setting determines the additional amount of time forced air is channeled through the viscometer tube to dry it at the conclusion of the rinse/dry cycle. Select a value from 15 to 300 seconds for this option. The time period selected will be added to the preset dry period of 108 seconds for normal tubes and 36 seconds for fast-run tubes.
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Cup Empty Time
NOTE
Tray Settings: Advanced
CAUTION
CAUTION
The Cup Empty T ime option determines the amount of time allotted for evacuation of sample from the sample cup prior to the beginning of the wash sequence. Select a value from 1 to 255 seconds for this option. The evacuation time should be adjusted so the highest expected viscosity oil is evacuated from the cup before the solvent is introduced into the solvent chamber. Improper adjustment may result in solvent overflow if/when solvent is evacuated into a waste line that still contains sample residue.
Be careful to consider bath temperature(s) and potential solvent hazards when selecting solvents for use with the miniPV Series instrument.
Make certain to replace the sample vial with an empty vial prior to raising the vial holder. Otherwise, solvent may overflow.
When you have completed the configuration and saved the current wash settings, you may wish to permanently store the current instrument settings using the Save Instrument and T ray Settings.
CAUTION
Select the Tray Settings: Advanced menu item to open the Tray Settings: Advanced window used to define additional operational
parameters for sample testing with the miniPV Series instrument. It may be necessary for you to log in as a Manager to access Advanced settings.
Advanced settings will ordinarily be configured by a technician from
CANNON® Instrument Company when the instrument is initially installed.
Advanced settings should only be adjusted by or in consultation with a representative from CANNON®.
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The Tray Settings: Advanced window
Maximum bulb 1 fill time(s):
Min. bulb 1 selection time(s):
Maximum bulb empty time(s):
Adjust this setting to select the desired maximum fill time for bulb 1. Acceptable values are between 20 and 400 seconds.
Adjust this setting to select the desired minimum time permitted for selection of bulb 1 or bulb 2 for sample testing. Acceptable values are between 0 and 20 seconds. Decreasing the setting will increase the probability that the sample will be tested in bulb 1.
Adjust this setting to select the maximum amount of time for the oil to drop between the target tube sensor and the bottom tube sensor during a sample determination before the sample test is aborted. Acceptable values are between 90 and 600 seconds.
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Maximum tube empty time %:
Pull Sample Pulse On Time
Vent Bulb Drain Time
Adjust this setting to select the percentage of the drop time between the bottom sensor and the sensor at the top of bulb 1. The default value is 100%.
Adjust this setting to help eliminate bubbles that can occasionally be formed as the vacuum draws some types of samples into the viscometer tube. The pulse value is a percentage of time that the sample will be drawn up into the tube during each five-second interval of the draw period. A setting of 100% (default setting) will not pulse the sample. A setting of 20 would pull the sample for one second in each five-second interval. Sample pulsing should only be used if it is found to alleviate bubbling during the sample draw period.
Adjust this setting such that the vent bulb and vent are cleared of sample before the sample menious drops to the top sensor. Acceptable values are between 0 and 250 seconds.
Apply Vent Bulb Drain Time
Bulb overdraw
Saving a configuration
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Select which bulb to apply the Vent bulb drain time parameter.
Use the Bulb Overdraw button/window to set the the amount of time in seconds that the instrument will draw sample AFTER the sample menis­cus has covered the target sensor in the viscometer tube. More viscous materials may require a larger overdraw time to ensure that the sample meniscus does not dip below the target sensor during temperature equilibration.
Proper adjustment of the overdraw can maximize efficiency of the test cycle. Too much overdraw can contaminate vacuum lines and interfere with pump operation. T oo little overdraw can interfere with the initiation of sample testing following the temperature equilibration period. Note that lighter oils will be pulled higher in the bulb.
Whenever you have altered instrument, tray or sample configuration, you should save the resulting settings as a new or existing configuration. To save current settings, use the Save Instrument option:
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Procedure
Calibration
1. From the VISCPRO
®
primary menu options, click Configure.
2. Select the desired instrument and click Save Instrument & Tray
Settings. The Save Configuration window will appear.
3. Type a name for the new configuration in the Save As: box. Or click
an existing configuration from the configuration list box.
4. Click OK to save the configuration. Or click Cancel to exit the Save
Instrument & Tray Settings window without saving your changes.
The Calibration window provides controls for calibrating each bulb
associated with your instrument. You may need to log onto the system as a Manager to access these security-protected calibration functions.
Use the bulb spin controls
to display current constants and valid
check standard data available for calibration of each bulb. Calibration constants are determined individually for each bulb. Data for
automatic calculation of tube calibration constants is derived from check standards run using that tube.
For information regarding the miniPV Series calibration procedure, see Chapter 3, Calibrating the miniPV Series.
NOTE
The Calibration window options are described briefly below: Date selection: The calibration program uses data from previously-run
standards to determine the calibration constants. To select the desired standard data, use the No older than [x] days spin controls
to set the
date parameters for the database search (if “1” is selected, only the standards run in the past 24 hours will be used).
Bulb selection: Viscometer bulbs are numbered from the bottom to the top of the viscometer tube. Use the spin controls to select the correct bulb for calibration.
Data selection: Test data from standards run with the miniPV Series within the specified Date parameter will be automatically displayed in the list box.
To select and deselect the data from the sample runs to be used for the calibration, press and hold the C key and click on the samples to highlight those you wish to include in calibration calculations.
Sample run data from at least two different standards for each bulb at each calibration temperature must be available for calibration calculations to be performed.
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After you have selected the desired data, release the C key and click Calculate new constants to update values for C and E.
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You may evaluate the accuracy of the new calibration constants by comparing the known viscosity for the standard with the calculated viscosity for each standard selected for the new calibration. This differ­ence is displayed as a percentage in the last column (% Diff) of the updated sample list box.
59
Show Calibration Data
The Show Calibration Data button is a toggle that will permit you to compare current and new calibration data and constant information. Press the Show Calibration Data button once to view the current calibration information. Note that the button name will change to Display Sample Data. Press the button again to display the new calibration data.
When/if you are satisfied with calculation results, click on Update Tube to save calibration values for the current configuration. The new data will become the current data.
If the difference is still too great, repeat the calibration process until the difference falls within acceptable limits (refer to the precision statement in ASTM D445).
The Calibration window
NOTE
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You must click Update tube before changing bulbs if you wish to save the new calibration constants for that bulb. If you close the Calibration window without updating the tube, the new calibration information will not be saved.
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Service menu
Bypass .... option
CAUTION
To access the service menu items, click Service from the VISCPRO
®
primary display and select the desired instrument.
The Monitor window permits the user to view current operational values for the miniPV Series instrument. These settings may be helpful to
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®
technical personnel when troubleshooting difficulties with
the miniPV Series.
Select Wash viscometer tube to open the Wash viscometer tube window .
Click Begin W ash to initiate the wash cycle. The Status: indicator will display and update current actions.
T o begin washing an evacuated sample cup, click the option box to make certain that the Bypass initial cup evacuation option is selected.
Do not use this option with a filled cup or the cup will overflow.
When the Wash cycle has been completed, click Done to exit the Wash viscometer tube window.
NOTES
CAUTION
The Wash operation cannot be executed if the tube is currently running a sample. To terminate the Wash cycle at any time, click Abort Wash.
The Wash viscometer tube function overrides automatic miniPV Series software operations. Verify that the tubes are clean and dry before initiat­ing computer-controlled sample testing.
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T o adjust the vacuum/pressure settings for the miniPV Series, click Service from the VISCPRO menu options and select the desired instru­ment group and instrument. Then click Adjust V acuum/Pressure to open the Adjust Vacuum/Pressure window .
Select the desired adjustment (vacuum or pressure) and then follow the screen prompts to complete the adjustment procedure, using the appropri­ate controls on the instrument wing panel. The prompts will display recommended vacuum/pressure settings and will also indicate how adjustments may be made to alter the settings.
61
To calibrate for temperature, see Chapter 3 for details. Temperature calibration requires a reference thermometer with an accuracy meeting the precision specification of ASTM D445.
To zero temperature offsets, click the Service/Clear Temperature
Offsets menu option for the desired instrument. The Zero Temperature Offsets window will open. Click the check box to select each desired
action. Then click OK to clear the selected settings. If the Clear Current Offset option is checked, VISCPRO will clear the
calibration point for the current bath temperature.
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the Clear General Offset option is checked, VISCPRO will clear the (factory-preset) General Offset for all temperatures for the instrument. This Instrument Setting cannot be restored except from a previously­saved Configuration. It is not recommended that you exercise this option without consulting with CANNON Instrument Company personnel.
Prewash option
Trip Point Only option
NOTE
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To train tube sensors (required for miniPV Series operation at each desired temperature setting) click the Service/Train T ube Sensors menu option for the desired instrument. The Train T ube Sensors window will open. Click the check box to select each desired option. Then click the Start button to initiate tube sensor training.
Select this option if the tube needs to be cleaned and dried prior to training. The Prewash option will execute a tube cleaning cycle prior to beginning the sensor training.
Select this option only if the tube sensor has been previously trained and requires only a validation/adjustment of the trip point settings (the electri­cal current level and fluctuations associated with the passing of the sample meniscus). The Only option will reduce the time required to accomplish these functions signficantly , but will not check/adjust basic power levels for instrument operation.
The miniPV Series will not test samples until sensor training has been performed at the test temperature.
At the conclusion of the sensor training, the “Learned” indicators for the top, middle and bottom sensors should display in green. If sensor training has not been successfully accomplished, the “Opened” and “Shorted” sensor indicators may provide helpful diagnostic information. Consult with CANNON Instrument Company personnel if problems with sensor training persist.
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To set security levels, first log into the VISCPRO software as a Man­ager. This will permit you to determine Manager or Technician accessibil­ity for the following protected menu-accessible functions:
Configuration:
Instrument Settings Tray Settings: Tube & Bath Tray Settings: Test Tray Settings: Wash Tray Settings: Advanced Calibration
Service:
Adjust V acuum T emperature Calibration (saved as Instrument Settings) Zero Temperature Offsets (saved as Instrument Settings) Train T ube Sensors
To make security changes, click Service/Set Security Levels for the desired instrument. The Service/Set Security Levels window will open. Current security settings will be displayed. To change the security level for a protected function, click on the Security Level cell opposite the function name until the Manager/T echnician drop-down box is displayed. Then click the desired security level to select it.
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When you have finished updating settings, click the Save button to save settings and close the Set Security Levels window. Or click Cancel to close the window without saving changes.
Testing samples—software options
This section of the manual provides information on using the software to perform common miniPV Series operations. For a step-by-step procedure detailing both hardware and software operations involved in sample testing, refer to Chapter 2.
Entering sample ID information
Procedure
NOTE
®
1. From the VISCPRO
primary menu, click on Main.
2. Select View Instrument from the menu .
3. Select the desired instrument group from the list box in the View
Instrument window.
If you do not see the desired instrument listed in the list box, make certain that the instrument is turned on and is on-line (verify cable connections to the computer). Then click the Refresh button to scan for additional on-line instruments.
4. When you are done, click OK. The Sample Input window for the
selected instrument will appear.
5. To input sample identification information for the samples to be run,
first select the correct tray for the test by clicking on the tab corre-
sponding to the tray.
6. After the tray has been selected, click on the sample number in
parentheses (or press 2) to access the sample ID field.
7. Enter the desired sample ID, using up to 21 alphanumeric characters;
then press the T or R key.
Selecting sample actions
8. Whenever a new sample ID is entered, the sample action defaults to
NOTE
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To select more than one sample at a time from the sample list box, highlight the first sample and the press the S key and click on the last sample, or just press and hold the C key and click on individual samples to be selected. When you have completed sample selection, right-click the mouse on any of the selected samples to select the desired sample action for all highlighted samples.
9. Select the desired sample action from the window by clicking on it.
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Measure Sample Viscosity. To access all sample action options,
highlight the desired sample and right-click the mouse or press 5.
The Sample Action popup window will appear.
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Sample actions
The Sample Action popup
Viscosity Action window
No action—clears action column for highlighted samples. No testing
will take place for this tray position.
Measure kinematic viscosity—measures sample viscosity .Verify Known KV—measures sample viscosity at the conclusion of
the automated test and tags data for possible use in calibrations/
reports.
Configure—Opens the Viscosity Action window (see next section)
to select test actions for selected individual samples/standards. The
Configure options will vary depending on the selected sample action
(Measure Sample Viscosity or Verify Known KV).
Delete—Deletes currently-selected sample data. Samples in suc-
ceeding tray positions will be moved up to fill the empty “slot”.
Insert At—Inserts a sample field at the currently-selected location.Copy All Selected Samples—copies selected sample IDsPaste Into Selected Samples—pastes selected sample IDsSequential Sample IDs—Numbers selected samples automatically .Clear All Trays—Clears sample data for all trays.
The Viscosity Action window permits you to set test parameters for individual samples, overriding the general settings. For information on general settings, refer to Tray Settings: Test.
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The Viscosity Action window
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Sequential Sample IDs—creates a numeric sequence for the
highlighted sample ID(s) in the list box. You have the option of
selecting a standard alphanumeric prefix and/or suffix to accompany
the sequence numbers, and you also can select the starting numeral in
the sequence.
Procedure
1. To use the Sequential Sample IDs feature, highlight the desired
sample tray location(s) in the list box (or skip to the next step to
select all).
2. Right-click any of the desired ID locations and select Sequential
Sample IDs from the Sample Action popup.
3. Enter necessary information in the Assign Sequential Sample IDs
window:
Assign Sequential Sample IDs window
Prefix—Input a character string to be used as an identifier
Suffix—Input a character string to be used as an identifier
Starting ID—Input a number to start the numeric sequence
Number of Samples—Select the number of samples in the high-
lighted block which are to be sequentially numbered
Use as Format—If checked, this feature activates a “wrap-around”
function for sequential numbering like an odometer (if 001 was input, the sequence would restart at 001 every 100 samples).
4. When done, click OK.
NOTE
The VISCPRO® software “remembers” the last number in the last se­quence and will place the next number in the sequence in the St arting ID field the next time the Sequential Sample IDs option is selected.
Viscosity Action for viscosity standards
The Viscosity Action window for KV verification is identical to the Viscosity Action window for measurement of kinematic viscosity (see
image, previous section), except that there is an additional field provided (Check St andard V iscosity) for input of the known viscosity of the standard.
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The viscosity of the standard must be entered in the Check Standard Viscosity field in order that the resultant viscosity determination may be
used for verification and calibration.
Copy & Paste Sample ID data entry options
The VISCPRO® Sample ID data entry screen supports Copy and Paste options.
67
Copying Sample IDs
Pasting Sample IDs
Copying/pasting multiple IDs
Inserting/deleting a sample ID in the test sequence
T o copy a Sample ID entry , including the configuration information, highlight the desired line(s) from the Sample List Box and right-click your mouse to access the Sample Action window. Then select Copy All Selected Samples from the menu options. OR you can use the C-C key combination.
T o paste previously copied Sample ID entry information into another tray/ sample location within the same instrument group, highlight the desired line(s) in the Sample List Box and right-click your mouse to access the Sample Action window. Then select Paste Into Selected Samples from the menu options. OR you can use the C-V key combination.
You may copy or paste a block of (multiple) sample ID entries using the same procedure described above. When pasting multiple entries, make certain to select the same number of sample locations as were initially copied. If you select a larger number , only the original copied number of entries will be pasted. If you select a smaller number, information for the last sample(s) in the block will not be copied.
T o insert a sample ID into an existing sample run test sequence, highlight the desired sample location in the sample run sequence and press I. OR highlight the desired ID number , click the right mouse button, and select Insert At from the Sample Action options.
CAUTION
CANNON
The existing sample entries will be moved down one position in the sequence and you can enter the new sample ID information at the cursor.
If the list box already contains a sample ID for every position on the tray , the sample data for the final position will be discarded when a position is cleared for new data.
T o delete one or more sample IDs and move all remaining samples in the sequence up in position, highlight the sample ID(s) you wish to delete and press the D key. OR you may right-click in the highlighted block and select Delete from the sample action options window . The highlighted sample (or samples) will be deleted and any existing sample entries following the removed items will be moved up to take their place in the sample run sequence.
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Saving Sample ID information
Many users will test the same series of samples on a regular basis for trend analysis and other quality control objectives. T o save time with Sample ID data entry, VISCPRO provides an option for saving and recalling Sample ID information.
Saving Sample IDs
To save Sample IDs, complete your sample ID data entry (see previous sections) from the Sample Input window , then click the Save IDs button. The Samples window will open.
Restoring Sample IDs
Input an ID for the saved sample sequence in the Save As: field. Then select which instrument(s) to associate with the Sample ID sequence. Then click OK.
T o restore Sample IDs previously saved, click Configuration and select the desired instrument. Then click Restore Instrument and T ray
Settings from the Configuration options. The Load Instrument and Tray Settings window will open.
Select which data is to be restored by clicking on the desired Restore options (Restore Instrument Settings, Restore T ray Settings, and/or
Restore Sample Information). The Load Instrument and Tray Settings window permits you to restore the following Instrument Settings: Instrument UserID, check standard prompts, temperature
calibration offsets The Load Instrument and T ray Settings option permits you to restore
the following Tray Settings: T ube S/N, tube type, wet tube option, bath temp, and tube calibration constants.
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Click the name of the desired confiugration to highlight it. Then click OK. Selected settings will be restored.
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The Load Instrument and Tray Settings window
miniPV Series analysis modules
The VISCPRO® software is shipped with several analysis modules which can be used to create reports based on sample test data. For general instructions on using analyses, see Chapter 6, Analysis Configuration Options. For information on a specific analysis module included with your miniPV Series package, see the chapter on the particular analysis.
Configuring the VI Matcher
VI Matching with VISCPRO
®
The VI Matcher is a VISCPRO® software feature that functions in tandem with the VI analyses to enable Viscosity Index (VI) calculation from sample data residing in the VISCPRO® database.
Viscosity Index calculations require kinematic viscosity data derived from samples tested at a high and a low temperature. The VI Matcher permits the user to define which viscometer tubes are high temperature tubes and which are low temperature tubes.
After the VI Matcher has been initially configured by the user (this is ordinarily done during initial instrument setup), the VI Analysis can be used to automatically scan the VISCPRO with matching Sample IDs. If samples with an identical Sample ID have been tested on a low temperature tube and a high temperature tube within an 8-hour time span, the VI for those samples can be calculated and
®
sample database for samples
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Configuration procedure
NOTE
displayed on the VI analysis. The VI Matching function is always indi­cated on the VISCPRO
®
status bar, whether or not a VI domain (viscom-
eter tube set) has been defined.
To configure the VI Matcher:
1. Load the VISCPRO
®
software.
2. Log on to the system as a Manager (a password may be required) to
access the VI Matcher function, which is security-protected.
For more information on the security log-in procedure, see Security Options, this chapter.
3. Select VI Matching—General Configuration from the Configura-
tion menu options. The General Configuration window will appear .
NOTE
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The VI Matcher General Configuration window
4. Click on the Allow Matching of Invalid Samples box if you wish to
permit VI matching of samples with flow times exceeding the
specified tolerance for repeatability .
The VI Matcher does not match invalid samples UNLESS the Allow Matching ... box is checked. The VI Matcher never matches unsuccessful
samples (samples with no flow time and a displayed kinematic viscosity of “0”). If one of the samples ran successfully at one temperature but not at the other, the good sample can still be used for VI matching if the failed sample is rerun within the time frame selected for the VI Matching Date Filter for the analysis.
5. Click on the ADD button to add a new VI configuration.
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6. Click on the serial numbers in the Select Low T emperature Tubes
list box which correspond to tubes that should be configured as low
temperature tubes by the VI Matcher. As you do so, the serial
numbers will be added to the Selected Tubes list box.
71
NOTE
Samples must have been previously run in a tube in order for the tubes to show up in the Select T ubes list boxes
To “de-select” a selected tube, click again on the highlighted tube serial number
7. Click on the tubes in the Select High T emperature Tubes list box
which correspond to tubes that should be configured as high tempera-
ture tubes by the VI Matcher. As you do so, the serial numbers will
be added to the Selected Tubes list box.
8. When you have finished adding low and high temperature tubes, click
OK to save the configuration and exit the General Configuration
window .
NOTES
T o exit the General Configuration window without saving the configuration, click Cancel.
For information on creating VI analyses, see the manual chapter corre­sponding to the desired analysis.
Turning off the VI Matcher
The VI Matcher essentially function as a separate instrument and is indicated as such on the VISCPRO® Status Bar. If you wish to terminate VI matching, you will need to delete any VI domain(s) using the Delete button from the General Configuration window . When no domains are defined, the VI Matcher does not function.
Handling errors
VISCPRO® errors
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miniPV-Series Automatic Viscometer with VISCPRO® Instruction & Operation Manual
The miniPV Series instrument software returns three types of errors during operation: bath errors, fatal errors and tray errors. Bath and tray errors are sample/tray specific, and may affect test results for a given sample. Such results will be indicated as invalid. Fatal errors may be hardware-related, and can produce a FAULT condition (see Chapter 5, Handling fault conditions).
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miniPV®-HX Automatic Viscometer with VISCPRO® Instruction & Operation Manual
Version 1.0— January , 2011; CANNON
®
Instrument Company
2139 High Tech Road • State College, PA 16803 • USA
CHAPTER
73
5
OPERATING, MAINTAINING
AND SERVICING THE miniPV Series
This chapter of the miniPV Series Instruction & Operation Manual contains information regarding the operation, service and maintenance of the miniPV Series instrument. For additional information on required utilities, instrument installation and setup, refer to Chapter 1.
miniPV Series components
The standard miniPV Series installation includes these primary compo­nents:
Bath unit  Waste Receiver assembly  Power supply
NOTE
Bath Unit
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The installation also requires user-supplied solvent vessels. CANNON supplies two G-38 reagent bottle caps (for recommended solvent vessels). The user must ensure solvent compatibility for dual solvent systems, since solvent residue will mix in the system. Additionally , any new solvent s should be compatible with previously-used solvents, since residue from original solvents may remain in the solvent lines and/or Waste Receiver.
The Bath Unit houses the primary control and operating systems for the miniPV Series, including modular service components, temperature bath with viscometer tube, carousel vial holder, and related hardware.
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Bath Unit connections
For information regarding Bath Unit connections, refer to the installation section of Chapter 1.
Solvent Dispensing System
The miniPV Series is equipped with a solvent system used to wash the viscometer tubes after each sample test. The system consists of the internal and external solvent and drain lines, the user-supplied solvent vessel, and the W aste Receiver assembly (including solvent dispensing unit). Appropriate solvent containers may be acquired from many suppli­ers, including JustRite
http://www.justritemfg.com/containes.tpl http://www.nalgenelabware.com/products/productsIndex.asp
Maintaining the solvent system
The miniPV Series requires solvent, which is used to wash the viscom­eter tube and rinse the sample vial after each sample analysis. The solvent system consists of the solvent containers, the solvent distribution and drain lines, and the Waste Receiver.
The user-supplied solvent container(s) provide the solvent necessary to clean the viscometer tubes before and after samples are tested. The solvent delivery lines distribute solvent to the viscometer tube(s). The drain lines collect the waste sample/solvent from the viscometer tubes, and transfer waste materials from the washing station to the Waste Receiver.
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and Nalgene® (see weblinks below).
Solvents
CAUTION
WARNING
The miniPV Series is compatible with aqueous and hydrocarbon-based (heptane, hexane, toluene and acetone) solvents. Please contact CAN­NON Instrument Company with any questions regarding solvent compat­ibility with instrument components. The supplied Waste Receiver is polypropylene. This material should be suitable for solvents/samples compatible with the miniPV Series.
When configured for dual solvent operation, the miniPV Series is capable of using both a washing and a drying solvent for certain applications. The solvents are selected by the user. Ensure compatibility of dual solvents at all times. If switching from one solvent to another with potential compatibil­ity problems, make certain to empty the Waste Receiver and flush the solvent lines several times with a neutral solvent. CANNON® Instrument Company is not responsible for damage to the solvent system caused by a combination of user-selected solvents.
Selection, handling and disposal of solvents are the responsibility of the user. CANNON® Instrument Company does not make specific solvent recommendations. Refer to the Material Safety Data Sheet (MSDS) provided with the solvent material, and exercise the necessary safety precautions. Use extreme care when working with hazardous solvents.
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miniPV-Series Automatic Viscometer with VISCPRO® Instruction & Operation Manual
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Application compatibility
Checking solvent levels
Filling the solvent container(s)
Solvent fill procedure
NOTE
WARNING
The solvent used in a particular viscometer tube must be able to dry at the test temperature of the tube (during the washing cycle). Choose the appropriate solvent accordingly .
It is the responsibility of the operator to visually monitor the amount of solvent remaining in the solvent container. Check the solvent container liquid level frequently . When the solvent level drops to within 2.5-5.0 cm (1-2") of the bottom of the solvent container, it should be refilled.
Check the volume of the solvent container(s) at the beginning of every work shift to avoid inadequate washing during testing.
1. Remove the lid from the user-supplied solvent container.
Whenever performing solvent fill procedures, verify secure installation of the 20-micron filter on the end of the solvent line to the miniPV Series instrument.
Use appropriate precautions when handling the solvent lines. Avoid spilling or splashing solvent. Always use appropriate MSDS procedures when handling samples/solvents.
Emptying the Waste Receiver
Procedure
WARNING
WARNING
2. Refill the solvent container from the solvent source. Do not overfill!
3. Replace the weighted filter end of the miniPV Series solvent line in
the solvent container. Make certain the filter end is at the bottom of
the solvent container.
Waste sample/solvents can present possible environmental and health hazards. Dispose of all waste materials in accordance with environmental and safet y regul ations.
Check the volume of the Waste Receiver frequently to avoid spillage/ overflow.
1. Disconnect the Waste Receiver from the cap containing the drain
lines.
Use appropriate precautions when handling the drain tubes. Avoid spilling or splashing waste material collected in the tubes. Always follow appropri­ate MSDS procedures when handling samples/solvents.
CANNON
2. Pour the collected solvent/sample mixture out of the Waste Receiver
into a proper waste storage container.
3. Securely reconnect the cap with drain tubes to the Waste Receiver.
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miniPV-Series Automatic Viscometer with VISCPRO® Instruction & Operation Manual
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76
WARNING
Dual-solvent washing
Dual-solvent action
Viscometer tubes
Waste sample/solvents can present possible environmental and health hazards. Dispose of all waste materials in accordance with environmental and safet y regulations.
For testing heavy or hard-to-clean materials, CANNON® Instrument Company recommends a dual-solvent washing system. The dual-solvent washing process uses two different solvents. The first wash might ordinarily use a heavy solvent to clean the sample residue out of the viscometer tubes. The second wash might use a lighter solvent to remove any remaining sample/solvent residue and dry the viscometer tube. Test temperature(s) must be carefully considered when choosing solvents.
To engage the dual-solvent washing, make certain that desired wash
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options are selected in the VISCPRO
software for Solvent A (washing
solvent) and Solvent B (drying solvent). Follow the instructions in the Installation section of this manual to correctly configure the instrument for dual solvent operation.
The miniPV Series is equipped with a borosilicate glass capillary viscom­eter tube having a wide viscosity range. The upper viscosity limit is up to 100 times the lower viscosity limit, depending on the tube type. Each 100­fold viscometer tube contains three thermistors used for sensing the level of the sample within the tube.
Thermistor operation
The tube thermistor detects the change in thermistor temperature associ­ated with the passing of the sample meniscus, and records the time accurately to within one-hundredth (0.01) of a second.
Timing bulb determination
As the sample is drawn into the viscometer tube, the VISCPRO® soft­ware automatically determines which timing bulb will be used to test the sample.
The sample will be drawn into the bulb above the upper timing thermistor. That bulb will serve as the overflow bulb for that particular test run.
NOTE
The numbers listed in this table are approximations, not absolute values.
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miniPV-Series Automatic Viscometer with VISCPRO® Instruction & Operation Manual
Version 1.a— January, 2011; CANNON
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Carousel Adjustments
Homing the Carousel
1. From the Service menu in ViscPRO, select miniPV Series Motor
Control.
2. Check Home Motors.
3. Click Start.
4. The carousel will home itself.
NOTE Factory Preset refer to the instructions below only if out of Adjustment.
Adjusting sample tray height
1. Ensure the R208 driver units have been properly adjusted and the
power is off.
2. Open the motor driver housing and connect a multi-meter to GND and
EHOME.
3. Rotate the 7/64 socket cap head screw (located within the exhaust
port) clockwise until it stops.
77
4. Set the multi-meter to the continuity setting.
5. Rotate the socket head cap screw counter clockwise until continuity is
achieved.
6. Once continuity has been achieved rotate the screw an additional turn.
7. Rotating the socket head cap screw in a clockwise manner lowers the
sample tray. Rotating the socket head cap screw in a counter-
clockwise manner raises the sample tray.
Adjusting Sample Tray Force
1. Ensure the stepper motors are disconnected from the R208 units and
power to the instrument is off.
2. Connect the positive probe of the voltmeter through the slot of the
elevate R208 cover and attach it to the lead of the potentiometer.
The elevate driver is located closest to the instrument.
miniAV-X with front cover screw highlighted
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miniPV-Series Automatic Viscometer with VISCPRO® Instruction & Operation Manual
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of C2).
3. Connect the negative probe of the voltmeter to logic ground (“-” lead
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4. Apply power to the instrument and adjust the potentiometer to get a
reading of 0.50V for the elevate driver.
5. Turn off the power to the instrument.
6. Disconnect the positive probe from the potentiometer lead of the
elevate driver.7. Connect the positive probe to the potentiometer
lead of the rotate driver. The rotate driver is located furthest from
the instrument.
7. Apply power to the instrument and adjust the potentiometer to get a
reading of 0.34V for the rotate driver.
8. Turn off the power to the instrument and remove the voltmeter
probes.
9. Connect the stepper motors to the corresponding drivers.
NOTE
Temperature bath
Bath fluid
Filling the bath
The units are shipped with current cutback enabled i.e. the micro switch is towards the white dot. This is the correct mode of operation and should not be changed.
We are using quarter step resolution which means pin 3 and pin 7 are connected and pin 2 and pin 7 are not connected.
The temperature bath is capable of maintaining constant temperatures between 20°C and 100°C. Silicone bath fluid is circulated via a central stirring shaft with twin impellers. The bath also contains stainless steel resistance heating elements. Solid state temperature control circuits provide proportional control with reset. An over -temperature probe is installed to protect all heating elements. It protects the bath from over heating.
The temperature bath is ordinarily filled with Dow Corning 200 10 cSt silicone fluid, available from CANNON® Instrument Company.
Fill procedure
CANNON
CAUTION
Remove MAINS power from the instrument before beginning the fill procedure. The fill procedure should be performed when the bath fluid is at ambient lab temperature.
1. Obtain the (supplied) bottle, Fill Cap Assembly and bath fluid.
2. Remove the top panel of the bath unit to view and access internal
components.
3. Fill the bottle with silicone fluid and screw the Fill Cap Assembly onto
the bottle. Ensure that the breather tube is positioned with the tube
opening at the bottom of the bottle.
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miniPV-Series Automatic Viscometer with VISCPRO® Instruction & Operation Manual
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4. Insert the end of the fill tube from the Fill Cap Assembly into the slot
in the top of the bath flange.
5. Lift and invert the bottle to begin introducing 900 mL of the appropri-
ate grade of ambient-temperature silicone bath fluid into the bath.
Add a small amount first and check for leaks. Then continue filling to
the cold fill level, marked by a decal cold fill line. The cold fill line is
approximately 3 centimeters (1.25”) below the bottom of the top bath
flange.
CAUTION
Do NOT overfill the miniPV Series bath, as the liquid level will rise with temperature.
6. When done, lower and invert the bottle to stop the fluid flow, remove
the fill tube from the bath, and detach the Fill Cap Assembly. Store
the bottle and Fill Cap Assembly in a safe place for future use.
7. Replace the bath top cover. Check the bath for leaks to complete the
fill procedure. Tighten fittings if necessary.
79
NOTE
Draining the bath
CAUTION
Periodically check the miniPV Series when the bath fluid is at ambient temperature to ensure that liquid is being maintained at the specified cold fill level.
Remove MAINS power from the instrument before beginning the drain procedure. Ensure that the bath has cooled to ambient temperature before draining bath fluid. Hot silicone bath fluid can pose a hazard to laboratory personnel.
1. Open the “ear” panels of the miniPV Series to access screws
securing the front bath cover.
2. Using a Phillips screwdriver, loosen and remove the four screws
securing the front panel to the Bath unit (see photo). Make certain to
hold the cover in place when removing the final screws. When the
screws have been removed, carefully remove the front cover and set
it aside.
3. Attach the drain hose of the appropriate ID to the stainless steel drain
tube adjacent to the viscometer tube tip (see photo). The other end of
the drain hose should be inserted in an appropriate bath fluid con-
tainer (or the supplied 900 mL bottle).
CANNON
4. Loosen the drain plug on the side of the bottom bath flange using the
supplied 3/16” hex driver . Fluid should begin draining from the bath
into the storage container.
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miniPV-Series Automatic Viscometer with VISCPRO® Instruction & Operation Manual
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80
5. When fluid has drained from the bath, close the drain valve by
tightening the drain plug clockwise to its furthest position. Tighten
securely to prevent leaks.
6. Remove the drain hose from the drain tube.
7. Replace the front panel with the screws previously removed. Then
close the ear panels to complete the drain procedure.
Bath heaters
The miniPV Series Bath Unit is equipped with two heating elements (control and auxillary).
Bath fluid safety features
The miniPV Series Bath Unit is equipped with a fluid level float sensor suspended from the top bath flange at the front of the bath. If the bath fluid level drops to an unacceptable level, a fluid level float warning will abort bath operations until an acceptable bath fluid level is restored and the miniPV Series is restarted.
Over-temperature thermistor
Checking solvent levels
Solvent/drain lines
Ventilation
The miniPV Series Bath Unit incorporates a thermal fuse suspended in the bath fluid from the top bath flange. If the bath fluid temperature rises above acceptable operating temperatures, the thermal fuse will abort bath operations. if this occurs contact Cannon Service.
Frequently inspect the user-supplied solvent vessel to ensure a steady supply of cleaning solvent for the viscometer tubes. When the solvent level drops to within 2.5-5.0 cm (1-2") of the bottom of the solvent vessel, it should be refilled.
See the Installation section of the first chapter for information on solvent/ drain lines for the miniPV Series instrument.
The miniPV Series requires installation of the supplied 3” ventilation hose to the exhaust shroud on the rear panel of the unit. The shroud must be connected to a customer-supplied exhaust fan/ventilation system. A 3”-4” hose adapter is shipped from CANNON Instrument Company with each miniPV Series unit. The air flow rate and design of the exhaust fan must be suitable to handle the vapors from the customer-supplied solvent and samples.
Checking bath temperature
After the miniPV Series has been turned on, you may monitor bath temperature via a reference thermometer in the bath or via the software temperature display (Sample Input window). Temperature should rise until the bath has attained the desired test temperature. Consult the
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®
miniPV®-HX Automatic Viscometer with VISCPRO® Instruction & Operation Manual
Version 1.0— January , 2011; CANNON
2139 High Tech Road • State College, PA 16803 • USA
®
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reference thermometer to ensure that the miniPV Series is controlling at the desired operating temperature. If the computer temperature display does not agree with the reference thermometer, perform the temperature calibration procedure per manual instructions.
Dual-solvent washing
For testing heavy oils or hard-to-clean materials, CANNON® Instrument Company recommends a dual-solvent washing system. The dual-solvent washing process uses two different solvents. The first wash might ordinarily use a heavy solvent to clean the sample residue out of the viscometer tubes. The second wash might use a lighter solvent to clean the remaining sample and solvent residue from the viscometer tube. Consult Chapter 1 for information on dual-solvent connections.
Solvent wash by computer
Use the following procedure for computer-controlled solvent washing:
81
Procedure
1. If the desired tube is testing a sample, wait until the test is complete
OR click the Abort button from the Sample Input window and select
the tube/tray to abort from the Select Trays window. Then click
OK.
2. Proceed with the solvent wash by clicking the Wash Tubes button
from the Sample Input or Machine St atus windows. Or you may
click on Service/Wash Viscometer Tube from the VISCPRO
primary menu options.
3. Click on Begin Wash to initiate a solvent wash using current wash
settings. During the wash cycle, the Begin Wash button will change
to Abort Wash. If it is necessary to interrupt the wash cycle, click
Abort Wash.
NOTE
The wash procedure will have to be successfully completed before further sample testing will be allowed. For information on using the computer to select wash parameters, see Chapter 4.
4. After the tube has been washed, click Done to close the Wash
Viscometer Tube window.
Preventive maintenance
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CANNON
The miniPV Series is a precision instrument, durably crafted for years of trouble-free operation. Because of the desirability of consistent viscosity measurements over time, preventive maintenance is limited primarily to cleaning and inspection procedures, rather than regular replacement of equipment items.
Following is a recommended PM schedule. You may copy the checklists and use them to track your PM actions. For detailed descriptions of listed procedures, consult related sections of this manual.
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miniPV-Series Automatic Viscometer with VISCPRO® Instruction & Operation Manual
Version 1.a— January, 2011; CANNON
2139 High Tech Road • State College, PA 16803 • USA
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CANNON
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miniPV®-HX Automatic Viscometer with VISCPRO® Instruction & Operation Manual
Version 1.0— January , 2011; CANNON
2139 High Tech Road • State College, PA 16803 • USA
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Instrument Company
miniPV Series repair/replacement components
The parts included in the list below are the more common repair/replace­ment components for the miniPV Series.
When making repairs using these items, make certain to replace obsolete or worn components with matching components.
83
Installation kit
Spare parts kit
The installation kit contains all parts required for assembly/installation of the miniPV Series. Kit replacements may be purchased from CAN-
®
NON
(part #P81.2879). The installation kit contains the following components: DC Power Cable • AC Power Cord • (12’) 1/8” solvent tubing • (2)
solvent filters • (2) bottle caps • (6’) VAC waste line (6 mm) • (2’) 1/8” air line • 6 mm tubing for waste b union • Serial cable • 9(F)-24(M) cable adapter • bath fluid • Bath Fill Cap Assembly • 3”-4” vent coupling adapter • tubing cutter • wrench
The spare parts kit contains a variety of tools used to accomplish minor service and replacement procedures. Refer to your packing list for a description of kit components. Kit replacements may be purchased from
CANNON
®
(part #P81.2417). The spare parts kit contains the following components: (4) fuses (8A for 115V, 4A for 230V unit • (2) 6mm SMC fittings • drive
belt • 3/16” hex key for drain • (2’) drain tubing • 7/54 Hex key for elevate sensor
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miniPV-Series Automatic Viscometer with VISCPRO® Instruction & Operation Manual
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miniPV®-HX Automatic Viscometer with VISCPRO® Instruction & Operation Manual
Version 1.0— January , 2011; CANNON
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CHAPTER
85
6
Data obtained from all instruments during sample testing is stored in the central VISCPRO configuration requesting the desired sample information in the desired format. Analysis configurations can be saved and later restored. The analysis configuration options provide powerful tools for reporting sample information. Analyses may be displayed on the computer screen, printed, or output via the computer RS-232 port.
Creating an analysis
1. Click Analyses from the VISCPRO® primary menu options.
2. Click View Analysis ... from the Analyses menu options. The
ANALYSIS CONFIGURATION
OPTIONS
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database. To view data, you must create an analysis
Choose Analysis window will appear.
NOTE
3. Highlight the desired analysis from the list of available analyses.
Use the directory tree structure to browse the report options. Click on the
or icons to reveal/hide analyses.
CANNON
4. Click on the Define New Analysis radio button (or verify that the
option is selected).
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86
NOTE
If you have already configured and saved an analysis, its name will appear in the list box on the right side of the window. If you click on an existing configuration and click OK, the analysis will be performed using the selected configuration settings. It will not be necessary to complete the remaining steps in this procedure.
5. Click OK. The analysis Configuration window will appear . The
Configuration window consists of tabbed pages with filter options
appropriate for the analysis.
6. Click on the tab corresponding to the filter you wish to set and
complete the configuration options. For further information on selecting Date, Sample and other Report options, see the following sections of this chapter.
7. When you have completed the configuration, click OK. The program
will prompt you to save the configuration.
8. Click Yes to save the configuration. The Save Configuration
window will appear. Type the name of the new configuration in the Save As: field. Or double-click the name of a preexisting configura­tion in the Existing Configurations list box to replace the existing configuration with the new configuration settings.
9. Click OK. The analysis will be performed and displayed using the
selected configuration settings.
NOTES
You may click Cancel from the Save Configuration window to exit without saving configuration changes.
You may display several analyses simultaneously by repeating the instruc­tions above. Use the tiling options available from the Window menu to display multiple analyses in the desired window format (horizontal, vertical or cascade view options are available).
Sorting analysis data
After you have displayed an analysis, you may sort alphanumerically by any of the table headings (the default sort for most reports is Time Stamp). To sort, simply click on the desired column heading. The table will be displayed with the new sort order.
NOTE
The Sort function is only available for an analysis when the Dynamic Update mode option is NOT selected. To restore sort functionality for an analysis, reconfigure the analysis by clicking Configure Analysis from the Analyses menu. Then access the Date filter options for the analysis and click the Use Fixed Date and Time radio button sis.
Set the Date/Time parameters and click OK to create the new analy-
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miniPV-Series Automatic Viscometer with VISCPRO® Instruction & Operation Manual
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Using the date filter
Use the date filter to select date/time parameters for the analysis. To use the date filter, click the Date Filter tab from the analysis configuration window .
87
EXAMPLE
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miniPV-Series Automatic Viscometer with VISCPRO® Instruction & Operation Manual
T o define a Fixed Date and T ime, click the corresponding radio button
. Then use the spin controls and/or list box selection options to set
the appropriate date/time parameters. All samples tested after the start date/time and before the end date/time, inclusive, will be included.
To automatically update the report with sample data as tests are com­pleted, click the Use Dynamic Update radio button. Click the Do not show previous samples box if you do not wish to display samples run prior to the time the analysis is opened.
Use the spin controls
to select the Sample Time Window (the desired
range of recent samples to be included in the analysis). Data from samples tested within [x] hours will be displayed in the analysis. the analysis sorting options are disabled if you are using Dynamic Update.
If the Do not show previous samples box was unchecked and a Sample Time Window value of 5 hours was selected, the analysis (when opened) would display data for all samples tested within the last five hours.
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Note that
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Using the sample filter
Use the sample filter to limit the analysis to samples which have been tested on certain instruments and tubes, or which have certain Sample ID characteristics.
T o filter samples by instrument, tube serial number (S/N) or Sample ID, click the Sample Filter tab from the analysis configuration window.
CANNON
Some (not all) analyses offer an option to display data for samples which did not complete successfully. Click the Display Unsuccessful Samples box if you wish to use this data. Unsuccessful samples, which have no flow time, will be listed with a kinematic viscosity value of “0”.
Then select the desired instruments and tubes from their respective list boxes. To select a range of tubes/instruments, click on the first desired item and then hold down the S key while clicking on the last desired item in the sequence. T o individually select tubes/instruments from the list boxes and add them to the analysis, hold down the C key while clicking on each desired tube/instrument.
T o filter by Sample ID characteristics, place the pointer/cursor in the Sample ID field and type the desired sample IDs, or leave the field blank to include all sample IDs for the selected instruments/tubes. You may use wildcards (%,_) to select a range of samples. For example, S% would
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include data from all samples starting with S. %S% would include data from all samples containing S. The underscore (_) is a single-character wildcard.
You may use multiple IDs separated by a comma. For example, AV%,40C% would display all samples beginning with AV or 40C.
89
NOTE
If no instruments/tubes/Sample IDs are selected, the analysis will display data for ALL instruments/tubes/Sample IDs.
Using the report/port output filter
Use the Report or Port Output filter to determine which data will be calculated and/or included in the analysis, and/or in what sequence that data will be displayed. Report/Port Output filter options will vary depending on the nature of the analysis. For more information on Report/ Port Output filter options, please see the chapter on the specific analysis.
Reconfiguring a displayed analysis
An on-screen analysis may be reconfigured using the same filtering tools available when creating a new configuration. To access configuration options for a displayed analysis:
1. Select Analyses from the VISCPRO
2. Select Configure Analysis from the Analyses options.
3. Select the desired analysis from the available analyses. The Sample Analysis Configuration window will appear .
4. Reconfigure the analysis as desired by clicking the tabs to access the Date, Sample and Report filtering options (see previous sections). When done, click OK.
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primary menu options.
5. You will be prompted to save the new analysis configuration. After you make your selection(s), the analysis will be performed and displayed using the new configuration settings.
Resizing table columns
T o resize columns from a displayed analysis for easier viewing/printing, move your mouse pointer/cursor to the edge of the desired column heading. The mouse pointer will change to a bi-dimensional arrow .
Click and drag the edge of the heading to the new location and then release the mouse button. The entire column will be resized as you drag.
User column size settings will be maintained as long as the analysis window is open.
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Saving a current analysis
T o save a current analysis configuration:
1. Select Analyses from the VISCPRO
2. Select Save Analysis from the Analyses menu options.
3. Select the desired analysis. The Save Configuration window will appear. Type the name of the new configuration in the Save As: field. Or double-click the name of a preexisting configuration in the Existing Configurations list box to replace the existing configuration with the new configuration settings.
4. Click OK.
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primary menu options.
NOTE
You may click Cancel from the Save Configuration window to exit without saving configuration changes.
Deleting an analysis configuration
You can delete an existing analysis configuration from the Choose Analysis window by highlighting the desired configuration in the list box
and clicking the Delete button or pressing the D key . The configura­tion will be immediately and permanently deleted.
Printing an analysis
To print the complete analysis, select Print from the VISCPRO® Main menu while the analysis is being displayed. If multiple VISCPRO windows are open, click the analysis window for the analysis you want to print to make it the active window before you select Print. Then choose print options from the Windows® Print window and click OK to print the analysis. (Consult your W indows® manual and printer/print driver docu­mentation for more information on print settings).
It is also possible to select individual or multiple samples from an analysis for printing (see next section).
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NOTES
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The font size for printed analyses will be automatically adjusted to fit data columns to the selected printer paper size. If the font is too small, or if columns of data are missing or truncated, try using print options to set your printer to print in landscape instead of portrait orientation.
The Print option from Main will not be accessible unless the analysis window is the active window.
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miniPV®-HX Automatic Viscometer with VISCPRO® Instruction & Operation Manual
Version 1.0— January , 2011; CANNON
2139 High Tech Road • State College, PA 16803 • USA
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Instrument Company
Keystrokes for selecting data for printing
You can print data for a selected sample or samples from an on-screen analysis by highlighting the desired sample data and then using the Print option from the VISCPRO
To select data for a single sample, click on the line of data associated with the sample on the screen display . To print a sequential range of samples, highlight the first sample in the range, then hold down the S key and click on the last sample in the range. To individually select test data from the on-screen list box for printing, hold down the C key while clicking on each desired entry.
When all desired data has been selected, click on Print from the Main menu. Make certain that the Selection radio button from the Print range options. Then click OK to print to the selected printer .
Exporting analysis data
The data export analyses included with the VISCPRO® software provide a convenient method for outputting sample data to laboratory collection systems or to an ASCII file.
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Main Menu.
91
has been selected
There are three different data export analyses. For step-by-step instruc­tions on exporting data from the VISCPRO
®
database, consult the
manual chapter on the specific analysis:
Error Data Export—Chapter 11 (export of error information)Sample Data Export—Chapter 9 (export of sample information)VI Data Export—Chapter 10 (export of sample/VI information)
Once the data has been exported, it can be manipulated using database/ spreadsheet software packages such as Excel Pro®. These packages provide additional tools for configuration of report data for such functions as:
®
, Access® or Quattro
Statistical Process ControlLong-term Monitoring of Daily Check Standards
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miniPV-Series Automatic Viscometer with VISCPRO® Instruction & Operation Manual
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®
miniPV®-HX Automatic Viscometer with VISCPRO® Instruction & Operation Manual
Version 1.0— January , 2011; CANNON
®
Instrument Company
2139 High Tech Road • State College, PA 16803 • USA
CHAPTER
93
7
CAV DATA TABLE
The CAV sample analysis is designed to permit convenient viewing of data collected from samples which have been tested using the Measure Sample Viscosity sample action option.
The sample analysis displays sample data in a tabular format. In addition to Sample identification (ID), the following data may be included:
INV—Invalid test indication (flow time out of tolerance)Tol[erance]—Acceptable difference in multiple test results for the
same sample
Date—Date the sample was measuredTime—Time the sample was measuredTube S/N—Tube serial number (from Instrument Settings)Tray [Index]—Position of the sample tray in the numeric sequence
(left to right)
Smple Indx.—Position of the sample in the sample trayBulb No.—Bulb number (the bulb in which the sample was run—#1
is the bottom bulb)
Technician—The technician logged on to VISCPRO at the test timeInstrument Type—Instrument type (CAV, CCS, etc.)Instrument ID—Instrument Identification (from Instrument Settings)KV—A verage kinematic viscosity (calculated from flow times)Known KV—Known kinematic viscosity of the viscosity standard% Diff KV—Percent difference between the measured KV and the
known KV for viscosity standards
Temp[erature]—Average bath temperatureT1-T4—Bath temperature during each sample drop% Diff —For multi-drop samples: ((maximum drop time - minimum
drop time) / average drop time) * 100 EXAMPLE: Four drop times: 80.3, 80.4, 80.5, 80.5
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Maximum drop time = 80.5 Minimum drop time = 80.3 ((80.5 - 80.3)/80.425) * 100 = 0.2487
Abs. Diff —For multi-drop samples: maximum drop time - minimum
drop time EXAMPLE: Four drop times: 80.3, 80.4, 80.5, 80.5
Maximum drop time = 80.5 Minimum drop time = 80.3 (80.5 - 80.3) = 0.2
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miniAV®-HX Automatic Viscometer with VISCPRO® Instruction & Operation Manual
Version 1.0— January, 2011; CANNON
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Instrument Company
94
{1,10} Efflux%—For multi-drop samples: displays the first 10 sample
efflux times
{1,20} Efflux%—For multi-drop samples: displays the first 20 sample
efflux times
Avg Efflux%—The average efflux time for efflux values used for
viscosity calculation
C, E—The calibration constants used for this determinationSUS—Saybolt Furol Seconds calculation% KE—Percent contribution of the kinetic energy correction to the
measured viscosity.
Reporting options
Configuring the CAV Data Table
The CAV Data Table analysis can present all or any of the above data for samples residing in the database. Several powerful filters may be used to create useful reports. These filters may be used by making selections from the tabbed property sheets found in the Sample Analysis Configu- ration window. Once the appropriate filters have been designated, the resulting report configuration can be saved for future use.
For general information on using analyses, see Chapter 6. To access and configure the CAV Data Table, follow the procedure below:
1. Select Analyses from the VISCPRO
®
primary menu options.
2. Select View Analysis ... from the Analyses menu. The Choose Analysis window will appear.
3. Double-click Basic Package from the list of Available Analysis Packages.
4. Select CAV Data Table from the Basic Package report options.
The Choose Analysis window
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miniPV®-HX Automatic Viscometer with VISCPRO® Instruction & Operation Manual
Version 1.0— January , 2011; CANNON
2139 High Tech Road • State College, PA 16803 • USA
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Instrument Company
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