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HTHS Series II

Cannon HTHS Series II Instruction & Operation Manual

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HTHS Series II
High Temperature
High Shear
Viscometer
Instruction
& Operation
Manual
CONTENTS
i
1
2
INTRODUCTION 1
Overview ............................................................................................................................ 1
Manual .................................................................................................................... 1
Components ............................................................................................................ 1
HTHS Specifications .......................................................................................................... 2
Operator safety ................................................................................................................... 3
Apparatus description......................................................................................................... 5
Operation ............................................................................................................................ 6
Safety features: ............................................................................................................... .... 6
Protective housing .................................................................................................. 6
Pressure relief ......................................................................................................... 6
Thermostat .............................................................................................................. 6
ASSEMBLY 7
Unpacking/inspection ......................................................................................................... 7
Installation procedure ......................................................................................................... 7
Connecting the Syringe Hose Adapter ................................................................... 8
Connecting the nitrogen supply.............................................................................. 8
Checking the power supply .................................................................................... 9
Verifying VPU operation ........................................................................................ 9
3
4
5
HIGH SHEAR VISCOSITY CALCULATOR 11
Program Installation ......................................................................................................... 12
Initial software configuration ........................................................................................... 12
Configuration disk ................................................................................................ 12
HTHS PRE-OPERATION CHECKLIST 13
STANDARD HTHS TEST PROCEDURE 15
Preliminary checklist ........................................................................................................ 15
Soaking the test sample .................................................................................................... 16
Setting sample volume ..................................................................................................... 17
Testing sample(s).............................................................................................................. 18
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CANNON
High-Temperature High-Shear Viscometer Series II Instruction & Operation Manual
Revision 1.0d—June, 2011;
2139 High Tech Road • State College, PA 16803 • USA
CANNON
®
Instrument Company
ii
6
7
8
9
10
DAILY MAINTENANCE 21
CALIBRATION 23
MAINTENANCE & REPAIR 25
Flushing viscometer cells ................................................................................................. 25
Clearing a blocked capillary tube ..................................................................................... 25
Cleaning the capillary........................................................................................... 25
SPARE PARTS LIST 27
WARRANTY/RETURN INFORMATION 29
Products limited warranty................................................................................................. 29
Reagent and chemical warranty........................................................................................ 29
Returning a product to CANNON®................................................................................. 30
A
B
C
APPENDIX A—HTHS CAPILLARY REPLACEMENT 31
Replacing an HTHS capillary........................................................................................... 31
Parts/Tools required:............................................................................................. 31
Removing the viscometric cell ............................................................................. 31
Removing the capillary......................................................................................... 32
Reassembling the cell ........................................................................................... 33
High-Temperature High-Shear Rheometer
Cell Calibration Record.................................................................................................... 35
APPENDIX B—HTHS RUPTURE DISC REPLACEMENT 37
Replacing an HTHS rupture disc...................................................................................... 37
Installation ........................................................................................................................ 37
Preventive maintenance.................................................................................................... 38
APPENDIX C–FIGURES & DIAGRAMS 39
Plug Valve construction.................................................................................................... 39
Viscometric cell and exit capillary (cutaway view) ......................................................... 40
CANNON
®
High-Temperature High-Shear Viscometer Series II Instruction & Operation Manual
Revision 1.0d—June, 2011;
2139 High Tech Road • State College, PA 16803 • USA
CANNON
®
Instrument Company
CHAPTER
1
1
Overview
Manual
INTRODUCTION
The CANNON® High-T emperature High-Shear (HTHS) Series II Vis­cometer is designed to determine the viscosity of engine oils and other oils under conditions of high shear at high temperatures.
The HTHS Series II is capable of testing at a temperature of 150°C as specified in ASTM D 5481. For other applications, temperature may be set as low as 25°C above ambient.
Oil samples are introduced into the viscometric cells and then propelled through the glass capillary tubes at the test temperature to obtain various shear rates. The HTHS Series II monitors the test and records the results. Data can then be analyzed via the computer software and test results can be displayed and printed.
This manual provides information about:
Components
Functions and operation of the HTHS Series II HTHS testing method Basic maintenance and repair
For additional details regarding the High Shear Viscosity Calculator, a data analysis software package for W indows provided with the HTHS Series II, consult the software manual.
The HTHS Series II vis­cometer includes 5 visco­metric cells in a thermostated block with an internal temperature control system, a digital pressure measuring system, auto­matic timer, vacuum/ pressure controls and waste receiver.
®
Patents
CANNON
U.S. Patent Numbers: 4,658,636; 4,723,442
®
High-Temperature High-Shear Viscometer Series II Instruction & Operation Manual
Revision 1.0d—June, 2011;
2139 High Tech Road • State College, PA 16803 • USA
CANNON
The
CANNON
Shear (HTHS) Series II Viscometer
®
Instrument Company
®
High-Temperature High-
2
HTHS Specifications
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CANNON
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The CANNON® High Temperature High Shear Series II Viscometer meets the high shear testing requirements of ASTM D 5481. SAE J300 (DEC99) requires HTHS viscosities from 2.6 to 3.7 mPa•s. Because the HT75 standard has a nominal viscosity of 2.7 mPa•s and the HT150 standard has a nominal viscosity of of 3.7 mPa•s, CANNON® recom­mends that the users calculate cell volumes using either of these stan­dards.
®
High-Temperature High-Shear Viscometer Series II Instruction & Operation Manual
Revision 1.0d—June, 2011;
2139 High Tech Road • State College, PA 16803 • USA
CANNON
®
Instrument Company
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Operator safety
Please observe the following safety procedures and notices for proper operation of your HTHS Series II instrument. Deviation from the installa­tion, operation or maintenance procedures described in this manual may result in a hazardous situation and may void the manufacturer's warranty .
• 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 Com-
pany.
• Transport the unit with care. Sudden jolts or drops may cause dam­age to components.
• Observe all warning labels.
• Never remove warning labels.
• Never operate damaged or leaking equipment.
• Never operate the equipment with damaged mains power cables.
CANNON
• The instrument power cord should only be connected to a suitable AC mains power source (with protective earth ground) matching the specifications of the S/N label on the instrument rear panel.
• Position power cords so that they are not likely to be walked on or pinched by items placed on or against them. Keep all connections as neat as possible.
®
High-Temperature High-Shear Viscometer Series II Instruction & Operation Manual
Revision 1.0d—June, 2011;
2139 High Tech Road • State College, PA 16803 • USA
CANNON
®
Instrument Company
4
• T o disconnect the power cord, pull it out by the plug. Never pull the cord itself.
• Always turn off the unit and disconnect the mains cable from the power source before performing approved service or maintenance procedures, or before moving the unit.
• Refer all service and repairs to qualified personnel.
• Do not attempt to service the unit beyond the service and/or repair
General Caution
procedures detailed in this manual or other documentation provided by the manufacturer. Contact CANNON all additional service/repair needs.
In addition to the cautionary statements listed previously , additional cautions may be posted throughout this manual. These warnings may be designated by an appropriate symbol inside an equilateral triangle. General cautions are indicated with an exclamation point (see diagram, left). Read and follow these important instructions. Failure to observe these instructions can result in permanent damage to the unit, significant property damage, and personal injury .
®
Instrument Company for
Hot Surface Caution
Protective Conductor
WARNING
MAINS
AC Power Input Symbol
( O )
Supply OFF Symbol
Hot surface cautions (see diagram, left) may be attached on or near hot surfaces of the instrument. Avoid touching these surfaces during instru­ment operation above 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, connect the protective ground (earth) terminals of the instrument to the protective conductor of the (supplied) line (MAINS) power cord. The main plug for the power cord should only be inserted in a socket outlet (receptacle) provided with a protective ground (earth) contact.
Do not use an extension cord (power
cable) without a protective 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.
The (O) symbol indicates the OFF position for the electrical switches for your unit (AC Mains or accessories).
CANNON
Do not use this equipment in a manner not specified by the manufacturer. If you do, the protection provided by the equipment may be impaired, and you may void the manufacturer warranty .
®
High-Temperature High-Shear Viscometer Series II Instruction & Operation Manual
Revision 1.0d—June, 2011;
2139 High Tech Road • State College, PA 16803 • USA
CANNON
®
Instrument Company
Apparatus description
5
WARNING!
Waste-oil receiver
The HTHS has been designed for testing of hot oil samples under high pressure. Care should be taken to perform sample tests per the proce­dures described in this manual.
The High-Temperature High-Shear Series II V iscometer consists of a heating device (an aluminum thermostatic block) with cavities housing five viscometric cells. The block permits temperature regulation of the test sample from 30°C to 150°C, ± 0.1°C. Compo­nents and accessories include the waste-oil receiver, Vacuum Pressure Unit (built-in), digital timer mechanism, soak cycle timing watch, thermal sensors and safety devices.
The waste-oil receiver (see photo) consists of a recess underneath the block with
HTHS with waste oil receiver
apertures for the exit tubes from the five test cells. A plastic container is placed under the tubes to catch the oil sample as it is expelled from the viscometer cells. The container slides into place at the left front of the HTHS Series II. A hinged door provides protection from hot oil. At the rear, an internal fan draws vapors into the exhaust manifold.
Cell capillaries
NOTE
Nitrogen supply
CAUTION
CANNON
Each viscometric cell contains a borosilicate-glass capillary sealed with Viton® gaskets at each end. A capillary support seats the capillary tube in the cell.
Matching of capillary lengths from one test cell to the next within 1 mm will allow the individual cell calibrations to be more closely matched, making subsequent runs of identical sample in different cells more repeatable. Matched capillary sets supplied with the instrument at initial purchase and are also available for purchase from CANNON®.
The HTHS cell capillary
The user-supplied nitrogen gas cylinders should be fitted with a pressure regulator to reduce the pressure supplied to the HTHS Series II to no more than 500 psi. Testing pressures will range from 100 to 500 psi.
Nitrogen is the only gas recommended as a source of pressure for the HTHS Series II viscometer.
®
High-Temperature High-Shear Viscometer Series II Instruction & Operation Manual
Revision 1.0d—June, 2011;
2139 High Tech Road • State College, PA 16803 • USA
CANNON
®
Instrument Company
6
Operation
Oil is introduced into the cells via the syringe-like charge cylinder(s) (see photo). The oil sample is filtered through a screen, then warmed to test temperature in the viscometric cell and finally propelled under high pressure from the cell through a narrow exit tube. The oil sample is expelled into a plastic container in the waste-oil receiver. A digital timer tracks the duration of the test run.
Safety features:
Protective housing
The HTHS components are protected from damage by a sturdy metal housing. The housing also prevents direct operator contact with the heater block assembly .
Pressure relief
The HTHS ballast tank stores pressurized gas from the user nitrogen supply for the HTHS. If pressure in the tank exceeds 700 psi, the internal HTHS pressure relief rupture disc will vent gas to atmo­sphere until the gas source is turned off or depleted. A failed rupture disc must be replaced prior to resuming HTHS operations. See APPENDIX B for additional information on rupture disc replacement.
Charge cylinder in Luer fitting
Thermostat
CANNON
HTHS internal rear view including pressure relief rupture disc assembly
The HTHS Series II is equipped with a thermostat that prevents the instrument from overheating. If temperature rises to an unacceptable level (160°C ± 5°C), power will be removed from the HTHS and will not be restored until the instrument has cooled to a safe state.
®
High-Temperature High-Shear Viscometer Series II Instruction & Operation Manual
Revision 1.0d—June, 2011;
2139 High Tech Road • State College, PA 16803 • USA
CANNON
®
Instrument Company
CHAPTER
7
2
Unpacking/inspection
ASSEMBLY
The CANNON® High Temperature-High Shear (HTHS) Series II Vis­cometer is shipped with only minor assembly required. The five visco­metric cells are shipped in place. Several accessories are included and must be installed prior to HTHS operation.
Follow the directions below to set up the HTHS:
1. Remove all components from the shipping container(s).
2. Remove any and all packing materials (styrofoam, etc.) from the components.
3. Compare and verify shipped materials by comparing equipment items with packing/parts list(s). Report missing items to CANNON Instrument Company immediately .
®
Damaged items
CAUTION
Installation procedure
4. Inspect each component for signs of damage. Report damages to the shipper and to the CANNON
Retain all packing materials until the instrument is connected and func­tioning properly. If any component(s) must be returned to CANNON Instrument Company, the damaged item(s) should be packaged in the original shipping container. Refer to the final chapter of this manual for instructions on returning defective equipment. Customers outside the United States should contact the local CANNON® dealer for procedures on returning products to CANNON® .
The HTHS is a precision instrument. Great care should be taken in handling the equipment.
1. Attach the included power cord to the connector marked MAINS on the lower rear panel of the HTHS . Do NOT plug the power cord into a power outlet at this time.
2. Place the 2-piece panel collar over the circular opening on top of the HTHS housing.
®
Instrument Company immediately .
®
CANNON
3. Place the cell cover over the viscometer cells and slide it into place inside the panel collar.
®
High-Temperature High-Shear Viscometer Series II Instruction & Operation Manual
Revision 1.0d—June, 2011;
2139 High Tech Road • State College, PA 16803 • USA
CANNON
®
Instrument Company
8
Connecting the Syringe Hose Adapter
The Syringe Hose Adapter is an adapter plate with a hose connection which permits introduction of both vacuum and air pressure to the syringe-like charge cylinders. The adapter is designed to slide over the upper aperture of the charge cylinder and provide an airtight seal when the sponge pad on the underside of the adapter is pressed against the lip of the charge cylinder.
The adapter is shipped with a length of clear 1/16 inch plastic tubing. Follow the proce­dure below to connect the adapter to the built-in Vacuum Pressure Unit of the HTHS.
1. Locate the adapter plate and the length of clear 1/
2. Slide one end of the plastic tube over the fitting on the adapter plate.
3. Slide the other end of the plastic tube over the hose fitting on the quick­connect hardware.
16 inch plastic tubing.
4. Push the hardware into the connector atop the HTHS by pushing downward.
NOTE
To release the hardware, press down on the knurled portion of the connector.
Connecting the nitrogen supply
Connect the regulated nitrogen supply to the brass intake at the back of the HTHS unit, using the procedure below:
1. Locate the 10' length of 1/8 inch copper tubing and Swagelok connectors provided.
2. Secure the tubing to the brass intake at the left rear of the HTHS unit using the Swagelok tubing into the fitting, tighten finger-tight and then tighten an addi­tional 3/4 turn with a wrench. The intake is located to the left of the MAINS power cord connector.
3. Connect the other end of the copper tubing to your nitrogen supply.
Syringe Hose Adapter installed
®
®
connectors (see photo). To tighten, insert the
CAUTION
®
CANNON
High-Temperature High-Shear Viscometer Series II Instruction & Operation Manual
The nitrogen supply must be equipped with a pressure regulator preventing the release of gas at pressures above 500 psi.
®
Revision 1.0d—June, 2011;
2139 High Tech Road • State College, PA 16803 • USA
CANNON
Instrument Company
Swagelok™ connections
Checking the power supply
MAINS
Verifying VPU operation
1. Connect the power cord to an appropriate AC power source (see rear panel label for power input requirements).
2. T wist the front panel POWER switch to the right to provide power to the HTHS unit.
The timer and pressure displays will light up.The exhaust fan will begin operating.
®
The W atlow
temperature.
The instrument will begin heating the block to the target temperature.
Check the operation of the built-in Vacuum Pressure Unit (VPU) as follows:
1. Turn the front panel PUMP switch ON and toggle the
temperature display will indicate ambient and target
PRESSURE/VACUUM switch to PRESSURE. Y ou should hear the pump operating.
9
CAUTION
2. Place your finger over the end of the black syringe hose adapter that is connected to the top of the unit by a clear plastic tube. You should feel the pressure of the air flow. The rate of flow is not adjustable.
3. Flip the PRESSURE/VACUUM switch to VACUUM and check the adapter for a slight suction with your finger.The VPU has been carefully adjusted at CANNON
®
but it may
be necessary to readjust the force of the vacuum by turning the ADJUST dial on the front panel of the unit. The amount of force determines the relative speed at which oil is drawn into the charge cylinder. You may experiment with an oil sample to fine-tune the adjustment (see Soaking the sample, Chapter 5).
T o increase the force of the vacuum, rotate the dial clock­wise; to decrease the force of the vacuum, rotate the dial counterclockwise.
The flow of oil should be regulated in such a way that the oil is not drawn into the charge cylinder too quickly. If this happens, the oil may be drawn into the VPU via the syringe hose adapter, possibly contaminating future samples and damaging the unit.
CANNON
4. Turn the pump OFF and press the HTHS power switch in to turn it off.
®
High-Temperature High-Shear Viscometer Series II Instruction & Operation Manual
Revision 1.0d—June, 2011;
2139 High Tech Road • State College, PA 16803 • USA
CANNON
®
Instrument Company
10
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CANNON
®
High-Temperature High-Shear Viscometer Series II Instruction & Operation Manual
Revision 1.0d—June, 2011;
CANNON
®
Instrument Company
2139 High Tech Road • State College, PA 16803 • USA
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