Automatic Viscometer Models CAV-2100 and CAV-2200 with VISCPRO® Instruction & Operation Manual
Version 2g — May 2009; CANNON
2139 High Tech Road • State College, PA 16803 • USA
®
Instrument Company
vi
This page intentionally left blank.
CANNON
®
Automatic Viscometer Models CAV-2100 and CAV-2200 with VISCPRO® Instruction & Operation Manual
Version 2g — May, 2009; CANNON
®
Instrument Company
2139 High Tech Road • State College, PA 16803 • USA
CHAPTER
1
1
INTRODUCTION/SOFTWARE
INSTALLATION
The CANNON® Automatic Viscometer (CAV 2000 Series)
The CANNON® Automatic Viscometer (CAV) is a completely automatic
viscometer designed for unattended operation. The operator places
samples in small vials in the sample holders, enters sample identification
information and initiates the testing with software or front panel keypad
commands. Without any further operator involvement, the CAV determines kinematic viscosity , cleans the capillary tube(s) and prepares the
instrument 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:
VISCPRO
®
software installation and operation
Applications
Precision
CAV 2000 Series equipment and operation
Calibration, service and maintenance procedures
For additional information on initial installation and instrument setup,
refer to the Installation & Setup Guide.
Previous CAV models have been used
in laboratories worldwide for over two
decades. CAV instruments can be found
in R&D laboratories, refinery quality
control laboratories, blending plants,
and independent testing laboratories.
The CAV is ideally suited for the
analysis of both transparent and opaque
samples. A variety of materials, such as
used oils, marine fuels, residual fuels,
and crude oils can be tested with ease.
Precision for the kinematic viscosity
determination of the CAV equals or
exceeds that specified in ASTM
Method D 445. This method is required
by the Society of Automotive Engineers
(SAE) Engine Oil Viscosity Classification SAE J300.
The CAV-2200
CANNON
®
Automatic Viscometer Models CAV-2100 and CAV-2200 with VISCPRO® Instruction & Operation Manual
Version 2g — May, 2009; CANNON
2139 High Tech Road • State College, PA 16803 • USA
®
Instrument Company
2
Measuring kinematic viscosity
Kinematic viscosity is a measure of the internal resistance to flow of a
fluid under gravity with the pressure head being proportional to the
density of the fluid. For any particular viscometer, the time of flow of a
fixed volume of fluid is directly proportional to its kinematic viscosity .
Units of measure
Methodology
Manual viscometers
Automatic viscometers
An accepted unit of kinematic viscosity is one centimeter squared per
second, which is called one stoke. The centistoke (which is equivalent to
2
1 mm
/s) is the unit of measure most frequently used.
ASTM Methods D 445 and D 446, included with this manual, describe
appropriate test methodologies and instruments for glass capillary
viscometry.
Sections 9-11 of ASTM D 445 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).
For automatic viscometers, ASTM D 445 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.
CAV tube characteristics
NOTE
Safety cautions
CANNON
®
Automatic Viscometer Models CAV-2100 and CAV-2200 with VISCPRO® Instruction & Operation Manual
Each standard viscometer tube has three bulbs, each of which has its own
calibration. The normal flow times for each bulb are 60-400 seconds.
Each tube has a hundredfold measurement range (for example, range
from 2-200 cSt or 20-2000 cSt for each tube).
CANNON® Instrument Company has not recommended the use of
longer flow times with the CAV, as shorter flow times allow greater
productivity. With longer flow times, the data throughput would be
significantly reduced. However, the viscometer and software design does
permit longer efflux times (up to 600 seconds) as desired by the user.
Please observe the following safety procedures and notices for proper
operation of the CAV:
Make sure that your unit is operated only by qualified personnel.
Version 2g — May, 2009; CANNON
2139 High Tech Road • State College, PA 16803 • USA
®
Instrument Company
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 CAV
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.
Never operate the unit without appropriate levels of approved bath
fluid in the bath.
(CAV-2200 only) Do not fill the expansion vessel higher than the
cold fill level.
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.
Always empty the bath and disconnect cable and tubing connections
to the Service Unit and Solvent Dispensing System before moving
the unit.
Never operate the equipment with damaged mains power cables.
Refer all service and repairs to qualified personnel.
3
General Caution
Hot Surface Caution
Protective Conductor
WARNING
In addition to the cautionary statements listed previously , additional
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 CAV unit.
Hot surface cautions may be attached on or near hot surfaces of the CAV.
A void touching hot surfaces, particularly when operating the CAV at bath
temperatures exceeding 50°C.
The Protective Conductor Terminal 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.
Do not use an extension cord (power cable) without a protective
conductor (grounding).
CANNON
®
Automatic Viscometer Models CAV-2100 and CAV-2200 with VISCPRO® Instruction & Operation Manual
Version 2g — May, 2009; CANNON
2139 High Tech Road • State College, PA 16803 • USA
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.
The (O) symbol indicates the OFF position for the electrical switches for
your unit (AC Mains or accessories).
Routine CAV operation may require the use and handling of hazardous
chemicals and solutions. CANNON® Instrument Company strongly
urges the operators and technicians working with the CAV 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.
Automatic Viscometer Models CAV-2100 and CAV-2200 with VISCPRO® Instruction & Operation Manual
W006,zH05,CAstlov032:8015.16P#traP002-USC
.tinuruoyhtiwdeilppusdrocrewopdevorppaehtylnoesU
6705.16P#traP001-UDStnevloS-lauD
Version 2g — May, 2009; CANNON
2139 High Tech Road • State College, PA 16803 • USA
®
Instrument Company
ecnailpmoC/snoitacificepStinUecivreSseireS0002VAC
snoitacificepStinUgnisnepsiDtnevloSseireS0002VAC
5
VISCPRO® for Windows
®
VISCPRO® is a powerful software product designed to provide a generic
instrument interface for controlling and operating your CANNON
instrument(s) via computer. When the Remote mode setting is selected
with the instrument keypad, all instrument functions necessary for testing
may be computer-controlled. VISCPRO
modules for processing and displaying sample data.
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® operating system (XP® or above) installed.
®
®
also includes reporting/analysis
®
Windows® XP
®
installation
Installation actions
1. Turn on your computer. Wait for the Windows® software to load.
2. Insert the first VISCPRO
®
installation disk or CD-ROM into the disk
drive. If the installation program does not begin automatically, click
Settings/Control Panel from the Windows® Start Bar. Then double-
click the Add/Remove Programs icon and follow the W indows
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 Windows
®
registry.
copy the software executable file and other necessary files to the
If you received a Configuration floppy diskette with your VISCPRO II
software, follow the instructions that came with the diskette to copy the
SAMPLES.MDB file to your VISCPRO II installation directory.
CANNON
®
Automatic Viscometer Models CAV-2100 and CAV-2200 with VISCPRO® Instruction & Operation Manual
Version 2g — May, 2009; CANNON
2139 High Tech Road • State College, PA 16803 • USA
®
Instrument Company
6
Running the software
the VISCPRO II icon
TitleBar
Menu Bar
Provide power to the CAV instrument, and verify serial connections to
the computer. To load your newly-installed VISCPRO® software, doubleclick on the VISCPRO
®
icon on your Windows® desktop (Windows
®
NT® users can click St art/All Programs/VISCPRO/VISCPRO 2.0).
If this is an initial installation, and you received a configuration disk with
your installation software package, make certain that the samples.mdb
file has been copied to the sample installation directory (see separate
instruction sheet for sample database location on your computer hard
drive). Your software may have already been preconfigured with instrument settings unique to your instrument, including instrument type(s),
tube ranges and serial #s, and calibration constants. In a moment, we will
verify these settings. Right now , your computer monitor should look
something like this.
Sample
Input
window
Analysis
window
Status bar
The VISCPRO® primary display
CANNON
The VISCPRO® primary display window is framed on the top by the
VISCPRO® title bar and menu bar, and on the bottom by the VISCPRO
status bar. The application window may have been preconfigured to include
two child windows which can be opened and closed independently. The first
®
Automatic Viscometer Models CAV-2100 and CAV-2200 with VISCPRO® Instruction & Operation Manual
Version 2g — May, 2009; CANNON
2139 High Tech Road • State College, PA 16803 • USA
®
Instrument Company
®
is a Sample Input window that describes your CANNON® instrument and
provides controls for running tests. The second is an Analysis window
that presents data from CAV tests.
7
The Sample Input window (note networked instrument tubes on tube tabs)
NOTE
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. CAV, CCS, PolyVISC) from the list of
available instruments and click OK. If the Available Instruments list box is
blank, your CAV instrument may not be on-line. Check cable connections
and make certain the control panel red power switch is ON. (Turn the
switch clockwise for ON. Push the switch in when turning the unit OFF.)
The Sample Analysis Table window displays report data based on user-configurable
parameters.
CANNON
®
Automatic Viscometer Models CAV-2100 and CAV-2200 with VISCPRO® Instruction & Operation Manual
Version 2g — May, 2009; CANNON
2139 High Tech Road • State College, PA 16803 • USA
®
Instrument Company
8
Checking configuration
Configuration disk
For first-time installations, check your software packet for a CONFIGU-
®
RATION floppy disk after installing VISCPRO
. If you have one, insert
the disk in your floppy disk drive and follow the instructions printed on
the disk label to add factory calibration information for your instrument
to your VISCPRO
®
database.
CAUTION
Configuration protection
Logging in
Copying floppy disk information to your VISCPRO® directory will overwrite existing sample data. If you wish to restore the original configuration, make certain to archive your sample data before doing so (see
Chapter 13 for information on using the Database Manager software).
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.
T o check the configuration settings for your instrument(s), 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 fullrelease 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.
CANNON
4. Click Manager. Do NOT enter a password!
5. Click OK. The Log In window will close automatically and you will
be logged in as management personnel.
®
Automatic Viscometer Models CAV-2100 and CAV-2200 with VISCPRO® Instruction & Operation Manual
Version 2g — May, 2009; CANNON
2139 High Tech Road • State College, PA 16803 • USA
®
Instrument Company
Checking Instrument Settings
1. Use your mouse to click (select) Configure from the VISCPRO
menu bar.
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 CAV 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:
9
®
CANNON
The Instrument Settings window
Click the radio button corresponding to the number of sample positions
for your sample trays.
Use the ID field to input instrument identification information using up to
16 alphanumeric characters.
The S/N: field (non-editable) indicates the four-digit serial number from
the label on the CAV rear service panel.
®
Automatic Viscometer Models CAV-2100 and CAV-2200 with VISCPRO® Instruction & Operation Manual
Version 2g — May, 2009; CANNON
2139 High Tech Road • State College, PA 16803 • USA
®
Instrument Company
10
Prompt options
Viewing/editing setup information
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
calibration standard (using the Verify Known KV viscosity action) 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.
If your instrument has already been set up by a technician, 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 gropu and instrument from the list of avail-
able instruments.
3. Select Tray Settings: Tube and Bath from the list of configuration
options. The Tray Settings: Tube and Bath window will appear.
CANNON
The Tray Settings: Tube and Bath window
The Tray Settings: Tube and Bath window contains setup information
for each tube associated with your instrument. You can click on the tube
tabs to see the setup information for each tube:
4. Click on the tube tab for Tube 1 (the tube on the left).
®
Automatic Viscometer Models CAV-2100 and CAV-2200 with VISCPRO® Instruction & Operation Manual
Version 2g — May, 2009; CANNON
2139 High Tech Road • State College, PA 16803 • USA
®
Instrument Company
5. 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!
6. Verify that the calibration values (C and E) for each bulb are avail-
able. If calibration data is not available, the default values are C=1
and E=0.
11
NOTE
For first-time installation, make
certain that the factory-prepared
Configuration file has been
copied to the VISCPRO II
directory per instructions.
7. Compare calibration values
to any existing archives of
Sample calibration data
the calibration constants for
each bulb of Tube 1. The values, which cannot be edited from the
Tray Settings: Tube and Bath window , should be identical.
8. Write down the tube and bulb number for any incorrect values.
will change these values later, using the Tube Settings: Calibration
window.
9. Click on the tube tab for Tube 2 and repeat steps 7-8 above. When
you are done, click OK to close the Tray Settings: Tube and Bath
window.
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.
We
CANNON
NOTE
This procedure for manually entering/changing calibration constants
bypasses the normal calibration procedure. To ensure the most accurate
viscosity readings, CANNON® Instrument Company recommends that the
instrument be calibrated per the calibration procedure outlined in Chapter
3.
1. 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
Calibration window will appear (see next page).
The Calibration window provides controls for calibrating each tube
associated with your instrument. You can click on the tube spin controls
to display current tube constants and valid check standard data
available for calibration of each tube.
®
Automatic Viscometer Models CAV-2100 and CAV-2200 with VISCPRO® Instruction & Operation Manual
Version 2g — May, 2009; CANNON
2139 High Tech Road • State College, PA 16803 • USA
®
Instrument Company
12
Procedure
1. Make sure that the spin controls for Tube and Bulb are both set
to “1”:
This corresponds to the left-hand tube in the left-hand bath and the
bottom bulb in the tube.
2. Check the values for the calibration constant(s) as they appear at the
bottom of the window:
CANNON
The Calibration window
Compare these values to your archive of the calibration constants (if
available) for tube 1 and 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 constants in the text boxes.
4. Click Update bulb.
5. Use the tube and bulb spin controls
to select the tubes/bulbs for
which you noted calibration constant errors. Input the correct values
for each.
Make certain to click Update bulb after you have corrected
C and E calibration values for each bulb BEFORE selecting the next
tube and/or bulb.
®
Automatic Viscometer Models CAV-2100 and CAV-2200 with VISCPRO® Instruction & Operation Manual
Version 2g — May, 2009; CANNON
2139 High Tech Road • State College, PA 16803 • USA
®
Instrument Company
6. When you have entered corrected constant values for each bulb on
both tubes, click
You have verified the software configuration of VISCPRO
to exit the Calibration window.
®
. T o test
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.
13
CANNON
®
Automatic Viscometer Models CAV-2100 and CAV-2200 with VISCPRO® Instruction & Operation Manual
Version 2g — May, 2009; CANNON
2139 High Tech Road • State College, PA 16803 • USA
®
Instrument Company
14
This page intentionally left blank.
CANNON
®
Automatic Viscometer Models CAV-2100 and CAV-2200 with VISCPRO® Instruction & Operation Manual
Version 2g — May, 2009; CANNON
®
Instrument Company
2139 High Tech Road • State College, PA 16803 • USA
CHAPTER
15
2
CANNON AUTOMATIC VISCOMETER
Preparing the CAV
Turning on the CAV
NOTE
TESTING SAMPLES WITH THE
This chapter of the manual will provide information on testing samples
using the CAV -2100 or CAV-2200 instruments. Observe the safety
cautions noted in the introductory chapter when operating equipment.
The CAV should only be operated by qualified personnel.
1. If CAV power is off, turn on the CAV Bath Unit by rotating the red
power switch on the control panel clockwise. Provide power to the
CSU Service Unit (rear panel On/Off switch) and the Solvent Dispensing Unit (front panel On/Off switch).
If it is necessary to
cut power to the CAV
Bath Unit, press the
power switch IN.
Preparing sample trays
Electrical connections
Using a temperature probe
Sample trays will
slide into place along
the grooved track in
the sample table.
Plated steel vial
adaptors should be
placed in the circular
recesses in the tray .
Glass sample vials slide into the adaptors. To position the first sample
vial under the viscometer tube in preparation for testing, slide the tray
forward until the detente mechanism engages. A heated sample tray
should snap into position against the detent mechanism when the front of
the tray extends approximately 2 centimeters (3/4”) over the edge of the
sample table. The forward edge of an unheated tray will be indented
approximately 2.2 centimeters (7/8”). During sample testing, trays are
automatically advanced by the pneumatic system.
For heated sample trays, verify that the attached three-pin tray cable is
connected to the interior wall connector above the sample table.
A recessed thermometer well at the front of the sample tray permits
insertion of a temperature probe to monitor tray temperature.
CAV-2000 heated sample trays
CANNON
®
Automatic Viscometer Models CAV-2100 and CAV-2200 with VISCPRO® Instruction & Operation Manual
Version 2g — May, 2009; CANNON
2139 High Tech Road • State College, PA 16803 • USA
®
Instrument Company
16
Tray/drain heat operations
CAUTION
Inserting/removing the CAV reference thermometer
Inserting the thermometer
Thermometer
Cable
Connector
T o provide power to the heated sample trays and/or heated drain lines
which may be installed on your CAV unit, use the heater ON/OFF
switches on the left side of the front panel. These two switches provide
power to left- and right-hand heating elements. To adjust temperature,
use the Adjust knobs on the upper front panel of the Bath Unit. T urn the
knobs clockwise to increase temperature and counterclockwise to lower
it. The knobs regulate the duty cycle of the heaters for the sample trays
and the drain lines. The low-temperature sample heaters will maintain
temperature stability as high as 80°C. The high-temperature sample
heaters will maintain temperature stability as high as 100°C.
Avoid skin contact with heated sample trays, as burns may result. Use
appropriate protection when handling heated samples, vial adaptors, and
sample trays.
ASTM thermometers with speciallyfitting adaptors for the CAV instrument
(see photos) are available from CAN-
NON® Instrument Company . Digital
therometers meeting the ASTM D 445
specifcation are also available.
1. T o install the reference thermometer,
check the current temperature of the
CAV bath and select the calibrated
thermometer appropriate for that
temperature.
Cap
Ferrule
Plug
For additional information
and details for CAV
thermometer installation/
removal, see Appendix A.
Removing the thermometer
CANNON
®
Automatic Viscometer Models CAV-2100 and CAV-2200 with VISCPRO® Instruction & Operation Manual
2. Using the two opposing 0.05” Allen
screws, secure the thermometer
adaptor plate to the connector on the thermometer cable.
3. Using a ladder to access the top of the CAV Bath Unit, remove the
knurled cap, ferrule and O-ring from the thermometer holder.
4. Insert the thermometer assembly into the holder until the plug with
O-ring is seated inside the top of the holder. Rotate the plug until the
thermometer scale is easily visible from the Bath Unit front window .
5. Slide the ferrule over the end of the plug until it seats against the O-
ring.
6. Place the knurled cap over the plug and rotate the cap clockwise to
secure the cap to the top of the thermometer holder. Tighten finger
tight to seal the connection.
T o remove the reference thermometer, permit the bath to cool below
80°C and reverse the above procedure. Use appropriate safety procedures
when handling the thermometer assembly , as it contains mercury.
Version 2g — May, 2009; CANNON
2139 High Tech Road • State College, PA 16803 • USA
®
Instrument Company
Local mode operation
The Local mode option permits manual control of CAV functions via the
control keypad on upper front panel of the Bath Unit. Local mode offers
the advantage of convenient and quick testing for an individual sample.
The single-sample drop time or kinematic viscosity is displayed on the
vacuum fluorescent display (VFD).
17
NOTE
Selecting Local mode
NOTES
Setting temperature
WARNING
The VFD is equipped with a screen saver feature which will reduce the
intensity of the display if the keyboard is not touched for five minutes. To
restore the original intensity of the display, press any key on the keypad.
T o select Local mode operation, toggle the Remote/Local (RMT/LOC)
button on the keypad on the Bath Unit to select Local mode operation.
When the unit is in Remote mode, the front panel display will indicate
REMOTE operation. If the display does not indicate REMOTE operation, then the instrument is in Local mode.
Local mode may be selected at any time during CAV operation. Remote
operations will be suspended. When switching from Remote to Local
mode, it is the user’s responsibility to monitor the instrument tube
state(s) and to properly prepare the instrument before running tests.
Operator intervention is required to test each sample in Local mode.
Additionally, test data is not saved to the VISCPRO® database and
viscosity calculations must be performed manually.
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 (see previous page). If the bath
temperature rises above the range of the thermometer, it may be damaged. Mercury thermometers pose particular problems, since mercury
from a damaged thermometer may circulate with bath fluid.
CANNON
T o set the temperature in Local mode, press the Set Temp key on the
front panel keypad, select the desired bath (CAV-2200 only) and input the
target (desired) temperature(s) using the keypad characters. Then press
the Enter key. Acceptable values are any numbers between 20°C and
100°C (150°C for high-temperature CAV models). If necessary, you may
use the decimal point key to input temperature to the nearest 0.01°C.
NOTE
To cancel temperature selection before completing the procedure, press
the Set Temp key a second time.
After the target temperature has been set, the CAV bath temperature will
be adjusted to the target temperature and the bath will equilibrate at the
test temperature. When the instrument has attained a temperature within
®
Automatic Viscometer Models CAV-2100 and CAV-2200 with VISCPRO® Instruction & Operation Manual
Version 2g — May, 2009; CANNON
2139 High Tech Road • State College, PA 16803 • USA
®
Instrument Company
18
0.05°C of the target temperature, the current bath temperature will be
displayed in large type (CAV-2100 only) on the display.
Preparing the bath
When operating in Local mode, visually check the condition of the
viscometer tubes prior to initiating a sample run. If sample or solvent
residue remains in the tube, use the Local mode options to wash and/or
dry the tubes (see Chapter 5, Solvent wash by operator (Local mode)).
Testing samples
1. Pour the test sample into a glass vial and slide the vial into the steel
vial adaptor in the sample tray .
NOTE
Do not fill the vials to the top. Sample overflow may damage the seals of
the LOAD cylinder.
2. Position the vial directly underneath the viscometer tube, using the
detente mechanism as a guide in orienting the sample. A heated
sample tray should snap into position against the detent mechanism
when the front of the tray extends approximately 2 centimeters (3/4”)
over the edge of the sample table. The forward edge of an unheated
tray will be indented approximately 2.2 centimeters (7/8”).
3. Press the Test button.
4. Select the desired tube for testing (Left (1) or Right (2)).
5. Select the desired protocol for the sample drop:
Run (Determine Bulb) will calculate the optimal test bulb.
Run (Use Previous Bulb) will test the sample using the same bulb
as the previous test (this option is desirable when averaging multiple
drop times for the same sample).
The sample will be tested and the drop time and/or kinematic viscosity (see next page) will be indicated on the VFD.
6. After the test has been completed, you may rerun the sample using
the above procedure, or wash the tube using the keypad WASH
option (see pages 18-19 for details on keypad options).
Aborting a test
NOTE
CANNON
®
Automatic Viscometer Models CAV-2100 and CAV-2200 with VISCPRO® Instruction & Operation Manual
T o immediately halt testing for a given tube/tray (left/right), press the
Stop Left and/or Stop Right button on the keypad. On rare occasions
when it is necessary to quickly abort tests on both tubes and remove
power from the unit, press the red power button on the control panel.
Aborting a test using either method 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 Localmode diagnostics/maintenance in chapter 5 for more information).
Version 2g — May, 2009; CANNON
2139 High Tech Road • State College, PA 16803 • USA
®
Instrument Company
Concluding a test
19
At the conclusion of a test, the drop time for the sample will be displayed
on the display screen. Record the drop time and press the Enter key to
return to the temperature display . Then remove the sample from the tray.
CAUTION
Use appropriate procedures when handling heated sample trays and
heated samples to avoid the possibility of burns.
Empty the oil from the sample vials into the appropriate container(s) for
use/disposal and clean glass vials per approved laboratory procedures.
Wipe any excess oil from the table, sample tray and vial holders (glass
vials only) using an absorbent paper towel. If necessary , clean these items
by wiping with a paper towel wetted with appropriate solvent.
Obtaining kinematic viscosity (KV) readings in Local mode
Local/Remote operation of the CAV is selected via the RMT/LOC button
on the CAV keypad. Local mode operation involves CAV control via the
keypad. Remote operation involves CAV control via the VISCPRO
software interface. Pressing the RMT/LOC button on the CAV keypad
will toggle between the Remote and Local operation modes. To obtain
kinematic viscosity readings in local mode with the CAV 2000 Series
instrument, calibrate each bulb for each bath at the desired bath temperature using VISCPRO II with the instrument set in REMOTE mode.
After calibration, open the Tray Settings: Tube and Bath window for
the desired instrument. Make sure the settings are correct and close the
window by clicking the OK button. This action will transmit the bath
temperature(s), the soak times, and the current bulb calibration constants
to the instrument.
Press the RMT/LOC button on the CAV keypad to change the instrument
mode to LOCAL. Then press the Menu button on the CAV instrument.
On the screen, select option #7: Display KV : YES/NO. Toggle the #7
button to select the desired option. If YES is selected, the KV will be
displayed at the end of a test.
NOTE
If the instrument is set to display KV, it will only display KV if the tube
calibration constants have been loaded as described above; otherwise, it
will display the efflux time. If multiple drops are required for a result, the
customer will need to average the KVs resulting from each drop.
Other Local mode keypad options
The Local mode keypad options described above are the more common
functions available. The Keypad Options table (see next pages) contains
a list of all Local mode keypad options, including entry parameters and
(where applicable) default instrument settings.
Any incomplete keypad command sequence may be cancelled by
pressing the keypad button that initiated the sequence.
Version 2g — May, 2009; CANNON
2139 High Tech Road • State College, PA 16803 • USA
CANNON
NOTES
®
Automatic Viscometer Models CAV-2100 and CAV-2200 with VISCPRO® Instruction & Operation Manual
®
Instrument Company
20
Acceptable keypad input is indicated audibly with a short beep. Unacceptable keypad input is indicated audibly with a longer tone.
Remote operation (computer-controlled)
Local/Remote operation of the CAV is selected via the RMT/LOC button
on the control panel. Pressing the button will toggle between the Remote
and Local operation modes. The Remote mode option permits automatic
control of CAV functions via the VISCPRO
Remote mode offers the advantage of multi-drop, multi-sample automatic
testing for up to 100 samples depending on tray type. Sample data is
automatically stored 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
All analyses provide a dynamic operation mode which can immediately
display and transmit test results to your computer screen, printer, and/or
serial port for in-house data collection. See Chapter 6 for more information on configuring analyses.
T o select Remote mode operation, press the Remote/Local (RMT/LOC)
button on the keypad on the Bath Unit until the front panel vacuum
fluorescent display indicates REMOTE operation. If the display does not
indicate REMOTE operation, then the instrument is in Local mode.
®
controlling software.
®
analyses for further information.
NOTE
Setting temperature
NOTE
NOTE
Remote mode may only be selected when the CAV is idle.
T o set the temperature in Remote mode, load the VISCPRO® software
and click Configuration. Select the CAV from the list of available
instruments and click Tray Settings: Tube and Bath. Select the desired
tube and type the desired temperature in the Bath Temp: field. Accept-
able values are any numbers between 20°C and 100°C (150°C for CAV
high-temperature models). 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.
To cancel temperature selection before completing the procedure, click
Cancel.
After the target temperature has been set, the CAV bath temperature will
be adjusted to the target temperature and the bath will equilibrate at the
test temperature. When the instrument has attained a temperature within
0.05°C of the target temperature, the current bath temperature will be
displayed in large type on the display for CAV-2100 models.
Placing the instrument in Remote mode while the VISCPRO software is
loaded will reset the bath temperature(s) to match the VISCPRO settings.
CANNON
®
Automatic Viscometer Models CAV-2100 and CAV-2200 with VISCPRO® Instruction & Operation Manual
Version 2g — May, 2009; CANNON
2139 High Tech Road • State College, PA 16803 • USA
Automatic Viscometer Models CAV-2100 and CAV-2200 with VISCPRO® Instruction & Operation Manual
Version 2g — May, 2009; CANNON
®
Instrument Company
2139 High Tech Road • State College, PA 16803 • USA
22
Testing samples
Loading software
NOTES
NOTES
1. Turn on the computer and load the CAV software by double-clicking
the VISCPRO
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(s) to stabilize at test temperature before testing samples.
®
icon on the Desktop.
2. Pour sample material into the glass vial(s). Fill to within 1.3 cm (½”)
of the top of each vial (somewhat less sample may be required for
testing in lower bulbs of the viscometer). Insert the glass vials into
the steel carrier cylinders and place the cylinders into the sample tray .
Do not fill the vials to the top. Sample overflow may damage the seals of
the LOAD cylinder. You should run calibration check standards per your
established laboratory procedures. Recalibrate the CAV (see Chapter 3,
Calibration) if result variance warrants.
3. Place the sample tray into the track underneath the viscometer tube.
Push the sample tray forward until the first vial is under the viscometer tube. A heated sample tray should snap into position against the
detent mechanism when the front of the tray extends approximately 2
centimeters (3/4”) over the edge of the sample table. The forward
edge of an unheated tray will be indented approximately 2.2 centimeters (7/8”).
!
CAUTION
4. Ensure that the splash guard(s) in front of the viscometer tube has
been secured in place with the thumbscrew . If a splash guard has
been removed, replace it.
The splash guard(s) may be removed to allow the user to handle the
sample not yet running (replace with a different sample, etc.). However,
make certain to return the splash guard to its proper position to prevent
sample/solvent contamination and to protect the viscometer tube tip. Do
not allow your hands to contact or obstruct the pneumatic mechanism or
heated sample trays and electrical connections.
5. Check the thermometer in the temperature bath to make sure the bath
is holding the proper temperature. If necessary , calibrate the CAV
temperature control probe using the temperature calibration procedure in Chapter 3.
6. 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).
CANNON
®
Automatic Viscometer Models CAV-2100 and CAV-2200 with VISCPRO® Instruction & Operation Manual
Version 2g — May, 2009; CANNON
2139 High Tech Road • State College, PA 16803 • USA
®
Instrument Company
The
View Instrument Group
window
7. Click OK to display the Sample Input View for the desired group:
23
CANNON
The Sample Input window
Then click the Tray tab corresponding with the desired viscometer tube.
8. Double-click on Sample ID (1) with the left mouse button to access
the sample ID data entry field (or press 2).
9. 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 save the entry and move the cursor to the next Sample
ID field. Or press R to save the entry .
®
Automatic Viscometer Models CAV-2100 and CAV-2200 with VISCPRO® Instruction & Operation Manual
Version 2g — May, 2009; CANNON
2139 High Tech Road • State College, PA 16803 • USA
®
Instrument Company
24
NOTE
NOTE
Running check standards
Once sample information is entered, the software automatically assigns
a sample action, Measure Sample Viscosity, for the sample. If you do not
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:
Then you may select the desired action by highlighting it and clicking the left mouse button.
For additional information on software data entry features, including
multiple sample selection and cut & paste options, see Testingsamples—software options in Chapter 4.
If V erify 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 Standard viscosity
from the standard bottle, and click OK to complete data entry . T o
revise or confirm standard data, right-click on the desired sample ID
from the list box and select Configure from the popup menu choices.
NOTE
Pausing a test
NOTE
See Chapter 4 for additional information on the Viscosity Action window.
10. 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.
11. Click on the RUN button at the bottom of the Sample Input win-
dow . The Select T rays window will open.
12. Click on the check box(es) to select the desired prepared tray(s) for
automatic testing. Then click OK to begin the CAV test(s).
T o temporarily halt testing for a given tube/sample, click the Pause
button from the Sample Input window . Then select the desired tray(s)
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.
CANNON
®
Automatic Viscometer Models CAV-2100 and CAV-2200 with VISCPRO® Instruction & Operation Manual
Version 2g — May, 2009; CANNON
2139 High Tech Road • State College, PA 16803 • USA
®
Instrument Company
Loading...
+ 114 hidden pages
You need points to download manuals.
1 point = 1 manual.
You can buy points or you can get point for every manual you upload.