Cannon Ravenfield BS/C+ Reference Manual

High shear rate high temperature viscometer astm d4741, ip 370, cec l36 a90
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Ravenfield® BS/C+ Reference Manual
CANNON® Ravenfield® BS/C+
High Shear Rate High Temperature Viscometer
ASTM D4741, IP 370, CEC L36 A90
Ravenfield® BS/C+
Reference Manual
Revision 3.2, March 2018
9728-C51
P/N

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  • Page 1 Ravenfield® BS/C+ Reference Manual CANNON® Ravenfield® BS/C+ High Shear Rate High Temperature Viscometer ASTM D4741, IP 370, CEC L36 A90 Ravenfield® BS/C+ Reference Manual Revision 3.2, March 2018 9728-C51...
  • Page 3 Ravenfield® BS/C+ Reference Manual Revision 3.2, March 2018 CANNON Instrument Company® 2139 High Tech Road State College, PA 16803...
  • Page 5 Ravenfield® BS/C+ Reference Manual Copyright Copyright © 2018 CANNON Instrument Company®. All rights reserved. Trademarks CANNON® and the CANNON® logo are registered trademarks of CANNON Instrument Company®. Ravenfield® and the Ravenfield® logo are registered trademarks of CANNON Instrument Company®. Revision History Revision...
  • Page 6: Table Of Contents

    Setting Full Scale Deflection (Span) ..................20 Start Instrument ......................... 22 Set Digital Gauge and Height Zero ..................26 Flush the Stator ........................26 Calibration Oil ......................... 27 Lower the Head ........................27 Computer Control ........................28 Enter Sample Data ........................29 CANNON® Overview...
  • Page 7 Calibrating the LVDT ........................47 Calibrating the PRT System ......................49 Data Erasure ..........................50 Direct Mode Operation ..................... 51 Manual Operation/TWEAK Mode ....................52 Direct Mode Control ........................53 One Parameter Selection Rules ....................53 Two Parameter Selection ......................53 Security feature .......................... 54 CANNON® Contents...
  • Page 8 Specifications........................61 Warranty ........................62 Products limited warranty ......................62 Reagent and chemical warranty ....................62 Returning a product to CANNON® ..................... 63 Required information ......................63 Hazardous materials ....................... 63 Shipping notification ....................... 64 Replacement Parts List ....................65 Appendix 1 ........................
  • Page 9 Julabo® Bath Quick Start ......................90 Switching On .......................... 90 Adjusting Set Point ......................... 90 Set Up Julabo MA Circulator for Use with Ravenfield® by CANNON® BS/C+ HTHS Viscometer . 92 For Use With or Without the Autosampler ................92 List of Figures Figure 1: Tapered plug ...........................
  • Page 10 Figure 31: View Stored Data screen ..................... 45 Figure 32: Set Up Instrument Constants sub-menu ................46 Figure 33: Calibrate LVDT screen ......................47 Figure 34: Applying torque load ......................47 Figure 35: Position of 150 gm calibration weight ................. 48 CANNON® Error! Reference source not found.
  • Page 11 Figure 59: LVDT and Allen screw ......................87 Figure 60: Julabo display diagram ......................91 List of Tables Table 1: Related documents ......................... 6 Table 2: Specifications and compliances ....................7 Table 3: Packing list (main components) .................... 11 CANNON® Contents...
  • Page 12 Table 4: Contents of Tool Kit ....................... 11 Table 5: Specifications ......................... 61 Table 6: Ravenfield® BS/C & BS/C+ replacement parts ............... 65 Table 7: Spare Parts List........................71 Table 8: Results ............................. 89 viii CANNON® Error! Reference source not found.
  • Page 13: Overview

    In the later part of the 20th Century, Roy Banks and others at BP Research in Sunbury, UK took the earlier Kingsbury work and applied it to the Ferranti-Shirley rheometer in conjunction with a Cannon CCS® rotor and stator. They achieved shear rates of the order of 150-250 k s .
  • Page 14: Rigidity And Precision

    In order to separate the rotor and stator, the yoke carrying the motor and measuring system is raised by a lifting screw operated by a handle on the side of the base. CANNON® Overview...
  • Page 15: Temperature Control And Measurement

    Rotor and Stator The form and dimensions of the rotor and stator unit follow closely with the design outlined in the paper by Pike, Banks and Kulik “A simple High Shear Viscometer – Aspects of Correlation with Engine CANNON® Overview...
  • Page 16: Ancillary Apparatus

    The normal use of the instrument requires ancillary apparatus for waste samples, solvent aspiration and temperature control. This includes temperature controlled bath, waste oil receiver and vacuum pump as shown in Figure 3 in the section “Setup the Ravenfield® BS/C+ Viscometer”. A temperature measurement facility is built in to the instrument. CANNON® Overview...
  • Page 17: Figure 2: Interior Overview Of Instrument Construction

    Ravenfield® BS/C+ Reference Manual Digital Depth Gauge Figure 2: Interior overview of instrument construction CANNON® Overview...
  • Page 18: Related Documents

    Standard Test Method for Measuring Viscosity at High Temperature ASTM D4741 and High Shear Rate by Tapered-Plug Viscometer Procedure for Gasoline Engine Cleanliness Test CEC L-36-A-90 Standard Test Method for Measuring Viscosity at High Temperature IP 370 and High Shear Rate by Tapered-Plug Viscometer CANNON® Overview...
  • Page 19: Specifications / Compliances

    Ravenfield® BS/C+ Reference Manual Specifications / Compliances Table 2: Specifications and compliances Specifications Details Model CANNON® Ravenfield® BS/C+ Viscometer Methodology ASTM D4741, CEC L-36-A-90, IP370 Applications High temperature, high shear viscosity of engine lubricants and other oils Dimensions (W × D × H) 62.2 cm ×...
  • Page 20: Notes/Cautions/Warnings

    Warnings alert the operator to conditions that may cause injury. Safety precautions Please observe the following general safety precautions for proper and safe operation of the CANNON® Ravenfield® BS/C+ high temperature, high shear rate viscometer. • Only qualified personnel should operate the Ravenfield® BS/C+.
  • Page 21 If the display does not respond to your key entries the safety circuit may have been tripped. To re-set the safety circuit for normal operation: The head must be lowered until the safety switch is operated, turn the motor switch to the cut-off position and then turn it back on again. CANNON® Overview...
  • Page 22: Getting Started

    Ravenfield® viscometer and accessories. 1. Carefully unpack the entire contents of the shipment. 2. Refer to the packaging list and verify that all materials are received. 3. Inspect materials for defects and shipping damage. Contact your CANNON® representative to resolve any issues. CANNON®...
  • Page 23: Table 4: Contents Of Tool Kit

    Table 4: Contents of Tool Kit Description Part Number Allen wrench – 2.5 mm 80.5465 Allen wrench – 5/32” 80.5685 Wrench – 8 mm 80.5008 Wrench – 10 mm 80.5009 Glass funnel 81.3112 Rotor & Stator 80.5003 Calibration Certificate CANNON® Getting Started...
  • Page 24 80.5062 Calibration Oil RL 102 9727-R10.032 Calibration Oil RL 103 9727-R15.032 Calibration Oil RL 104 9727-R20.032 Calibration Oil RL 105 9727-R25.032 Calibration Oil RL 106 9727-R30.032 Calibration Oil RL 107 9727-R35.032 Non-Newtonian Reference Oil RL 232 0003-RL232 CANNON® Getting Started...
  • Page 25: Setup The Ravenfield® Bs/C+ Viscometer

    Connect the Head Unit to the Electronic Unit. The cables will only fit in the correct orientation. Refer to Figure 3 for a visual representation of the set up of the instrument and ancillary units. Figure 3: Complete Ravenfield® BS/C+ System assembled and with optional autosampler CANNON® Getting Started...
  • Page 26: Location Of Units

    The measurement head may be placed on the top of the electronic unit (with the pad between) when using the circulating bath supplied by CANNON®. The waste oil receiver must be placed below the instrument so that the oil in the pipe will drain via gravity into the container.
  • Page 27: Inspection And Transit Clamps

    Figure 6 is the upper shipping jig (one of two upper jigs). The rods are pushed into the space between the channel in the top of the instrument yoke and the upper motor end cap. Figure 5: Lower shipping jig CANNON® Getting Started...
  • Page 28: Figure 6: Upper Shipping Jig

    4mm above and centered in the gap. Note: It is easier to fit the pipe after CANNON® Getting Started...
  • Page 29: Figure 7: Connections At Vacuum Pump

    Refer to Figure 7 and Figure 8 for detailed diagrams. (if using autosampler) Figure 7: Connections at vacuum pump Figure 8: Vacuum connections at instrument CANNON® Getting Started...
  • Page 30 Serial Number Please refer to the serial number and model in all communications and queries with CANNON®. The serial number is labelled on the back of both the measurement head and the electronics unit. If this becomes defaced or detached, a serial number label is also attached to the yoke which is visible when the head cover is removed.
  • Page 31: Instructions For Moving & Re-Assembling Instrument

    Re-assemble the unit by reversing the above steps. Place no strain on the pipes entering the side of the base casting when the heating oil pipes are replaced. Carefully clean the rotor and stator before they are re-fitted. It is ideal to clean them ultrasonically while leaving the rotor assembled to its shaft. CANNON® Getting Started...
  • Page 32: Setting Full Scale Deflection (Span)

    The universal shaft, screw, sealing ring, clamp ring, rotor and stator can all be accommodated in a 250mL beaker with solvent and immersed in an ultrasonic bath. The images on the following pages detail the various components discussed in this section. Figure 9: Clean rotor and stator assembly CANNON® Getting Started...
  • Page 33: Figure 10: Rotor And Stator Assembly Fitted (Section View)

    Ravenfield® BS/C+ Reference Manual Cell Clamp Ring O Ring Clamp Top O Ring Stator Bottom O Ring Figure 10: Rotor and Stator assembly fitted (section view) CANNON® Getting Started...
  • Page 34: Start Instrument

    10. Set the bath to the desired operating temperature and switch it on. Allow the bath to run until a stable temperature is achieved. At the same time, turn on the Electronic Unit and leave it on to stabilize. Note that the temperature of the platinum resistance thermometer will be lower than CANNON® Getting Started...
  • Page 35: Figure 11: Complete Rotor And Stator Assembly

    11. Once the apparatus has been heating for approximately 30 minutes, proceed to the next steps. Note: The target temperature difference between bath and thermocouple is 4 – 5°C. Greater than 10°C difference will cause difficulties. Figure 11: Complete rotor and stator assembly CANNON® Getting Started...
  • Page 36: Figure 12: Parts To Be Assembled For Stator

    Ravenfield® BS/C+ Reference Manual Figure 12: Parts to be assembled for stator CANNON® Getting Started...
  • Page 37: Figure 13: Rotor And Stator Assembly

    Failure to do so will cause the O ring to split and leak O-ring Stator Bottom Stator clamp O-ring ring ENSURE O-ring is seated in corner of measurement cell Figure 13: Rotor and stator assembly CANNON® Getting Started...
  • Page 38: Set Digital Gauge And Height Zero

    This vital step cannot be skipped as any dust or debris MUST be removed prior to operation. Caution: Do not skip step 2 as any dust or debris MUST be removed prior to operation. CANNON® Getting Started...
  • Page 39: Calibration Oil

    It should not be turned so far that the driving pins of the lift screw disengage. CANNON® Getting Started...
  • Page 40: Computer Control

    The top line ends with an entry of the software version. This may be required for a service request. After a few seconds the display will clear and show the screen as shown in Figure 15. main menu Figure 15: Main Menu Screen CANNON® Getting Started...
  • Page 41: Enter Sample Data

    Calibration Certificate. The calibration certificate for these rotors/stators gives a target figure which provides a shear rate of 10 1. Select A. The Rotor Constants screen will appear as shown in Figure 17. Figure 17: Rotor constants screen CANNON® Getting Started...
  • Page 42: Figure 18: Error/Incorrect Or Incomplete Data Message

    All the required data must be entered for the rotor constants under option of the constants screen. • Press to enter depth. • Press to enter constant S. • Press to enter target torque. • Press to enter rotor number. • Press to return to the constants screen. CANNON® Getting Started...
  • Page 43: Reference Oil Table Maintenance

    The system will allow the creation of different data tables with different test temperatures and the instrument will automatically select for use only those oils with a viscosity figure at the demanded test temperature. Exit the Reference Oil Table screen by scrolling off the top or bottom of the table. CANNON® Getting Started...
  • Page 44: Set Operating Mode

    For the first calibration, the instrument is already prepared for testing due to completing the previous operations up to this point. The shear rate screen will appear as shown in Figure 20. Figure 20: Shear Rate Screen CANNON® Getting Started...
  • Page 45: Figure 21: New Calibration Screen

    At the new calibration screen you can choose to start a new calibration or amend an existing one. Caution: There is no method of recovering a calibration after it has been abandoned. The next screen displayed is the calibration screen as shown in Figure 22. Figure 22: Calibration Screen CANNON® Getting Started...
  • Page 46: Sampling Technique

    Nothing further will happen until the switch is returned to the Motor position. is pressed the motor will ramp back up to speed and the original menu will be displayed. is pressed the machine will revert back to the main menu. CANNON® Getting Started...
  • Page 47: Adjust Gap

    When the torque gets near the value displayed under target torque, select and enter the depth gauge reading. Execute by pressing ENT. This will change the displayed target torque to a new and better approximation of the correct value. Refer to Appendix 6 “Target Torque” for more information. CANNON® Getting Started...
  • Page 48: Preparing The Calibration Curve

    Refer to Figure 25. Figure 25: Calibration Screen Start with the lowest viscosity standards and follow, in sequence, with the higher viscosity standards. TOTAL OILS IN THIS CAL field provides assistance to ensure proper amount and sequence of oils. CANNON® Getting Started...
  • Page 49: Figure 26: Torque, Temperature And Speed Screen

    5. If the two readings agree within 1% then there is no need to repeat the test. Standard test methods mandate that the torque result be calculated from the mean of two torque determinations which agree to within 1%. Therefore, the previous steps must be repeated until CANNON® Getting Started...
  • Page 50: Calibration Complete

    10. You may repeat any of the measurements by selecting and retesting a standard oil. Calibration Complete After pressing the calibration screen indicates calibration is complete as shown in Figure 27. Figure 27: Calibration complete screen CANNON® Getting Started...
  • Page 51: Figure 28: Calibration Table

    This will take you to the measurement stage to complete calibration. Independent Check on Shear Rate On the first usage of any calibration curve it is important to cross check the shear rate by using the non-Newtonian reference oil. CANNON® Getting Started...
  • Page 52: Measurement

    Insert sample. Enter a reference for the sample. • Press • Enter a reference of up to six characters • Press to continue ENTER Press C. The torque, temperature and speed screen will appear. Refer to Figure 30. CANNON® Sampling Technique...
  • Page 53: Figure 30: Torque, Temperature And Speed

    • When two or three torque results are selected, the average is automatically used to calculate the displayed viscosity. 7. Repeat items 4 and 5, noting all determinations and results on the reporting sheet (provided, Appendix 1.) CANNON® Sampling Technique...
  • Page 54: Sampling Technique

    2. Wait until oil falls into neck of funnel. Place second sample in funnel and fill the funnel. 3. Two funnels are generally sufficient to remove previously used oils. If using very viscous oil like RL 107 it may be advisable to repeat step 2. CANNON® Sampling Technique...
  • Page 55: Taking A Reading

    A reading is taken by observing the torque and the temperature simultaneously as the temperature passes through 150° C. Ensure that the rate of temperature rise does not exceed 0.5°C/sec. Adjust the bath setting as necessary and repeatedly insert samples to cool the head until satisfactory conditions are obtained. CANNON® Sampling Technique...
  • Page 56: Normal Use

    However, due to human nature and common laboratory conditions, accidental seizure is possible. The instrument incorporates a torque limiting clutch to reduce the damage and most seizures can be recovered by the technique described in Appendix 2. CANNON® Normal Use...
  • Page 57: Review Data

    Ravenfield® BS/C+ Reference Manual CANNON® advises users stock a spare rotor and stator with each instrument to reduce down-time. It takes 45 to 60 minutes to replace and recalibrate a rotor/stator pair. Caution: Switch the motor to CUTOFF before raising the rotor from the stator at any time.
  • Page 58: Calibrate/Clear Instrument

    Ravenfield® BS/C+ Reference Manual Select to show the last calibration data in the same way that the data appears when reviewing results of a calibration. Select to display the Platinum Resistance Thermometer offset table, which keeps a list of corrections to be automatically applied to the temperature measurements to correct for errors in measurement system.
  • Page 59: Calibrating The Lvdt

    3. Apply the supplied 150g calibrated weight to the head. Press ENTER when ready. Refer to Figure 34 and Figure 35. Figure 34: Applying torque load 4. You will then be returned to the Set Up sub-menu. CANNON® Normal Use...
  • Page 60: Figure 35: Position Of 150 Gm Calibration Weight

    Ravenfield® BS/C+ Reference Manual Figure 35: Position of 150 gm calibration weight...
  • Page 61: Calibrating The Prt System

    Refer to Figure 36. Figure 36: PRT Offset Correction 4. Press ENTER. Note: Separate correction factors are stored for each temperature at which calibration is performed. CANNON® Normal Use...
  • Page 62: Data Erasure

    Ravenfield® BS/C+ Reference Manual Data Erasure It is possible to erase all data stored within the instrument. This is not generally necessary, but on occasions when it is desired, the options C, of the Setup Instrument Constants sub-menu may be employed.
  • Page 63: Direct Mode Operation

    Operating Mode. Press repeatedly until DIRECT mode appears in highlighted window. When in DIRECT mode, choose F: DIRECT MODE OPTIONS. From here is it possible to use the machine in non-standard ways. Refer to Figure 38. CANNON® Direct Mode Operation...
  • Page 64: Manual Operation/Tweak Mode

    4. To turn motor off gently, press A. The motor will ramp down at the same speed is ramped up. Controlled motor switching is an important measure in reducing the effects of torque offset shifts under multiple shear rate conditions. CANNON® Direct Mode Operation...
  • Page 65: Direct Mode Control

    Select SPEED first, and then select gap or rate while both are held constant. Select RATE first, and then select speed or gap while both are held constant. CANNON® Direct Mode Operation...
  • Page 66: Security Feature

    Users can change the password by accessing the main menu. Select option from Main Menu. Calibrate/Clear instrument to bring up the sub-menu. Select option G. (note: this option is not displayed on screen) Refer to Figure 40. CANNON® Direct Mode Operation...
  • Page 67 Refer to Figure 41. Figure 41: Password changed screen The correct password must be entered before the main menu displays. If it is not entered correctly the following message is displayed. Refer to Figure 42. CANNON® Direct Mode Operation...
  • Page 68 Ravenfield® BS/C+ Reference Manual Figure 42: Incorrect password screen CANNON® Direct Mode Operation...
  • Page 69: Autosampler With Windows

    The following sections offer a basic insight into the autosampler. For more detailed information and instructions, please refer to the designated Autosampler Manual. Figure 43: Ravenfield® autosampler CANNON® Autosampler with Windows...
  • Page 70 Ravenfield® BS/C+ Reference Manual Bottle Detector Carousel Pump On/Off Switch USB Port Figure 44: Diagram of front of autosampler CANNON® Autosampler with Windows...
  • Page 71: Simple Workflow: Calibration

    11. Select points on the displayed graph to be used for calibration. 12. Click Calculate Constants. 13. Check returned value of check oil for any issues. 14. If calibration looks good, save the calibration to internal computer by clicking Save Calibration. CANNON® Autosampler with Windows...
  • Page 72: Simple Workflow: Routine Measurements

    5. Enter the sample IDs for oils into the software. 6. Press start. 7. Wait until all samples have been tested. 8. Review data on screen. 9. Check performance of check oil over run. 10. Print report. CANNON® Autosampler with Windows...
  • Page 73: Specifications

    Ravenfield® BS/C+ Reference Manual Specifications Table 5: Specifications Specifications Details Model CANNON® Ravenfield® BS/C+ Methodology ASTM D4741, CEC L-36-A-90, IP 370 Applications High temperature, high shear viscosity of engine lubricants and other oils Dimensions (W × D × H) 62.2 cm × 38.1 cm × 64.8 cm (24.5 in × 15 in × 25.5 in) 83.3 cm x 41.9 cm x 64.8 cm (32.8 in x 16.5 in x 25.5 in)
  • Page 74: Warranty

    Company. Reagent and chemical warranty CANNON® Instrument Company (“the Company”) warrants all reagents and chemicals sold by the Company and delivered to and retained by their original purchasers to conform to the weight, specifications and standards stated on the package. The Company will, at its sole option, either...
  • Page 75: Returning A Product To Cannon

    If, after careful checking, the problem remains unidentified or unsolved, telephone CANNON Instrument Company (or the local service agent) to consult with a product specialist. If the specialist cannot recommend a simple solution or repair, CANNON will authorize the return of the product through the issuance of a Return Authorization number (RA).
  • Page 76: Shipping Notification

    Ravenfield® BS/C+ Reference Manual Shipping notification Products returned without CANNON’s prior authorization will not be accepted. The customer may be billed a testing fee if a product is returned to CANNON and found to be working properly. CANNON® Warranty...
  • Page 77: Replacement Parts List

    Description Part Number Ultrasonic Bath 80.5020 Rotor/Stator Replacement (complete) 80.5002 O-Rings 80.5005 Service Kit 80.5675 Printer Paper for Model DR Autosampler 80.5634 MAINS AC power cable 74.2110 (US standard) Power supply fuses Varies Surge protector Varies CANNON® Replacement Parts List...
  • Page 78: Calculations

    ������������������������ ( ��������.−�������� ) =����∗ ( ���� ∗���� ) ∗ .01 ∗ ���������������� ∗ ���������������� ���� ���� (3) Hence: �������� Consider the rotor to have the following dimensions: Axial height = h (4) The area of the curved surface: CANNON® Appendix 1...
  • Page 79 (7) ���� ���� ���������������� = ���� ∗ �������������������� ���� �������� ∗ ���� ∗ ���� ∗ [ℎ �������� ���� − ����] This is the system equation: Each rotor/stator pair is given the following constants: • Rotor constant Rc CANNON® Appendix 1...
  • Page 80 �������������������������������� �������� ���� ( ���� ���� ���� ) ∗ (ℎ �������� ����−����) �������� use h if a < depth use (S – a) if a > depth Torque is read directly from the digital read out in gm.cms. CANNON® Appendix 1...
  • Page 81: Polishing Damaged Rotors And Stators

    If the damage is severe, but confined to a region at the top of the position the rotor occupies, then it may be possible to continue to lap until the rotor has moved away from the damaged zone. Lapping Procedure Prepare the damaged rotor as noted in the previous section. CANNON® Appendix 2...
  • Page 82 6. The aim is perfect conformity with very little banding. Note: The use of a polishing handle is strongly recommended for this procedure and can be provided by CANNON® upon request. Warning: Prior to installation, after lapping, or whenever contamination is suspected, the rotor and stator must be thoroughly cleaned in an ultrasonic bath.
  • Page 83: Spare Parts

    Appendix 3 Spare Parts CANNON® recommends the spare parts located in Table 7. In the event of damage to the instrument plate springs we recommend returning the instrument to the factory where the instrument can be put back onto our jigs and fixtures for realignment. If this is not possible we provide a full service kit and video instructions indicating the correct procedure.
  • Page 84: Removal Of Damping Chamber

    2. Release the locknut. 3. Release the brass screw until the damping chamber can be withdrawn. 4. Return the damping chamber to CANNON® in a sealed container for cleaning and re fitting. Wrap in absorbent tissue and place in a closed polythene bag.
  • Page 85: Clearing A Password

    2. Press the space between the A E and – keys. 3. Switch on and hold until the engineering screen displays. 4. Type access code 369307. The password is automatically set to zero and operation is unlocked CANNON® Appendix 5...
  • Page 86: Target Torque

    Gap calibration is the adjustment of the height of the rotor in the stator to achieve a known shear rate. Figure 46 is an equation of the torque generated by a sample in a tapered plug rheometer: CANNON® Appendix 6...
  • Page 87 The torque generating gap in the Ravenfield® BS/C +is very small, so the effect of the protruding part on the torque is also small as a result of the effective “gap” being minimal. CANNON® Appendix 6...
  • Page 88 Consequently there is a unique point where the torque expected (target) to be generated at that specific height and the actual torque generated at that height will be the same. That is the correct gap for the shear rate being measured (usually, but not limited to, 106 s CANNON® Appendix 6...
  • Page 89 Figure 49: Torque graph The next step is to lower the rotor to 0.35 cm. Refer to Figure 50. Generally there is not a destination depth in mind. The operator needs to watch the torque numbers and ensure that the CANNON® Appendix 6...
  • Page 90 In the next step the target is even closer. In this stage make small adjustments of the height in the 0.05 to 0.01mm level. Now is the time to add fresh oil and make sure that the rate of rise of temperature through the set point is correct. CANNON® Appendix 6...
  • Page 91 The target torque on the certificate is the torque which was achieved at intersection in CANNON® instrument and laboratory but the torque achieved in another instrument may be slightly different.
  • Page 92: Instructions For Removing, Cleaning & Re-Fitting The Damping Chamber

    2. Adjust its position as necessary until the Damping adjuster can be screwed into the center of the central Damping plate. Do not place pressure on the Damping plate. 3. Replace the allen screw removed in number 3 of removal. Lock it tightly but not excessively. CANNON® Appendix 7...
  • Page 93 6. Ensure there is no interference between the central Damping plate and the aperture when the motor is moved between stops. Adjust it under its clip until this is correctly fitted. 7. Replace the damping fluid according to instructions provided in manual. Figure 53: Damping chamber components CANNON® Appendix 8...
  • Page 94: Re-Fitting Plate Springs On Ravenfield Bs/C+ Viscometers

    38mm/40mm thick. Remove the bottom cover by removing three screws. Refer to Figure 54. Figure 54: Instrument on its back with block for support 4. Release, but do not remove, the screws holding the front of the plate springs. Refer to Figure 55 CANNON® Appendix 8...
  • Page 95 5. Release the screws holding the upper wire springs. Slide the two rollers supplied in the Jig Kit in the corners of the notch in the upper part of the yoke. Refer to Figure 56 Figure 56: Rollers with Jig Kit CANNON® Appendix 8...
  • Page 96 14. Hold all these jigs in contact and pinch down the four screws on the wire springs and the six screws on the first plate spring. An assistant may be required for this part of the process. CANNON® Appendix 8...
  • Page 97: Re-Aligning The Measurement Chamber

    Turn the DTI to one of the three marks and not the reading. 7. Turn the DTI to the opposite mark and note the difference between the two readings. 8. Turn the DTI to the other pair of marks and note the difference in this direction. CANNON® Appendix 8...
  • Page 98 14. Back off both limit stop screws. 15. Re-calibrate the torque according to manual instructions. 16. Set the limit stop screws to allow the moto to give readings of approximately -250 to +800 and re-lock the lock nuts. 17. Replace all remaining covers. CANNON® Appendix 8...
  • Page 99: Lvdt Re-Alignment

    3. Calibrate the instrument in the usual way. Switch off, put Keyswitch to SET, wait for movement to cease, press button. Fit calibration weight, press button. Switch to RUN. Check that limit stops touching. Check that slight force on weight makes reading increase. 4. If instrument reads correctly, re-lock the screw loosely. CANNON® Appendix 9...
  • Page 100 Ravenfield® BS/C+ Reference Manual 5. Calibrate instrument again. 6. Check with weights used previously to ensure a straight line. 7. If line is not straight, repeat step 2. This procedure is self-correcting and should be correct the second time. CANNON® Appendix 9...
  • Page 101: High Temperature High Shear

    Date _____________________ Operator ______________________________________ Rotor/Stator Pair Number _______________________ Target Torque______________ gm/cms Calibration Gradient___________________________ Torque Intercept__________________________ Correlation Coefficient ___________________ Viscosity Intercept ___________________ Digital Gauge Reading ______________________ Table 8: Results Sample Torque 1 Torque 2 Torque 3 Mean Viscosity Identity CANNON® Appendix 10...
  • Page 102: Julabo® Bath Quick Start

    More information and additional languages are available on the Julabo® bath website at www.julabo.com. All Ravenfield® by CANNON® HTHS instruments are supplied with Julabo® external heating circulators. This is just the quick start guide. The full Julabo® manual is included with the bath.
  • Page 103 Ravenfield® BS/C+ Reference Manual Figure 59: Julabo display diagram Photo credit: Julabo USA Inc®. CANNON® Appendix 11...
  • Page 104: Set Up Julabo Ma Circulator For Use With Ravenfield® By Cannon® Bs/C+ Hths Viscometer

    Ravenfield® BS/C+ Reference Manual Set Up Julabo MA Circulator for Use with Ravenfield® by CANNON® BS/C+ HTHS Viscometer Setting the configuration options is done with the circulator in OFF mode. Pressing the (back) key stores the current setting and exits the current menu level.
  • Page 105 15. Press up or down arrow to set temperature to 152.0° C 16. Press 17. The decimal digits flash, press OK. flashes. 18. Press back arrow to return to the display (or live temperature display if bath is in heating mode). CANNON® Appendix 11...
  • Page 106 Select Temperature Setpoint 1: 1. Press is displayed. Press up arrow key until displays 3. Press flashes Set baud Rate: 1. Press Menu key 2. Press down arrow until CFG displays 3. Press OK CANNON® Appendix 9...
  • Page 107 4. Press down arrow until displays 5. Press 6. Press down arrow until displays 7. Press 8. Current parity setting will flash. Press up or down arrows until displays 9. Press 10. Press back arrow to return to the display CANNON® Appendix 11...
  • Page 108 4. Press down arrow until displays 5. Press 6. Press down arrow until displays 7. Press 8. Current handshake setting will flash. Press up or down arrows until SOFt is displayed. 9. Press 10. Press back arrow to return to display. CANNON® Appendix 9...
  • Page 109 Ravenfield® BS/C+ Reference Manual CANNON® Appendix 11...
  • Page 110 CANNON Instrument Company® 2139 High Tech Road State College, PA 16803...

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