Contents Contents ........................... 1 Overview........................... 1 Description ........................... 1 History, Hardware & Method ....................1 Rigidity and Precision ....................... 2 Temperature Control and Measurement .................. 3 Torque Measurement ....................... 3 Torque Drive ..........................3 Rotor and Stator ........................3 Ancillary Apparatus ........................3 Related Documents ......................
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Fit the Rotor and Stator ......................17 Start Instrument ......................19 Set Digital Gauge and Height Zero ..................... 23 Flush the Stator .......................... 23 Calibration Oil ..........................24 Lower the Head .......................... 24 Computer Control ......................25 Enter Sample Data ........................25 Enter Rotor Constants ......................
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Simple Workflow: Routine Measurements .................. 47 Warranty......................... 48 Products limited warranty ......................48 Reagent and chemical warranty ....................48 Returning a product to CANNON ....................49 Required Information – Please Include the Following: ............49 Hazardous materials ....................... 49 Shipping notification ......................49 Replacement Parts List.....................
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Appendix 10 - Julabo® Bath Quick Start ................70 Switching On ..........................70 Adjusting Set Point ........................70 Set Up Julabo MA Circulator for Use with Ravenfield by CANNON BS/C+ HTHS Viscometer ..71 For Use With or Without the Autosampler ................71 List of Figures Figure 1: Tapered Plug ........................
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Figure 28: Calibration Screen ......................31 Figure 29: Torque, Temperature and Speed Screen ................. 31 Figure 30: Calibration Complete Screen ..................32 Figure 31: Calibration Table ......................33 Figure 32: Main Menu Screen ......................33 Figure 33: Torque, Temperature and Speed ..................34 Figure 34: View Stored Data Screen ....................
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List of Tables Table 1: Related Documents ......................5 Table 2: Specifications ........................6 Table 3: Packing List (main components) ..................9 Table 4: Contents of Tool Kit ......................10 Table 5: Replacement Parts List ...................... 50 Table 6: Spare Parts List ......................... 55...
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 .
The vertical position of the yoke is precisely measured by a digital gauge. The measurement system is designed to account for thermal expansion and is compensated to a degree by opposing vertical expansion of the measurement chamber and its mounting base. A rigid, non-plastic thermal CANNON Ravenfield BS/C+ HTHS Reference Manual...
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 Instrument Company | Overview...
ASTM D4741 and High Shear Rate by Tapered-Plug Viscometer CEC L-36-A-90 Procedure for Gasoline Engine Cleanliness Test Standard Test Method for Measuring Viscosity at High Temperature IP 370 and High Shear Rate by Tapered-Plug Viscometer Cannon Instrument Company | Related Documents...
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+.
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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 Ravenfield BS/C+ HTHS Reference Manual...
1. Carefully unpack the entire contents of the shipment. 2. Refer to the packing list(s) and verify that all materials are received. 3. Inspect materials for defects and shipping damage. Contact your CANNON representative to resolve any issues. Table 3: Packing List (main components)
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.
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. Cannon Instrument Company | Setup the Ravenfield BS/C+ Viscometer...
4 mm above the gap. Refer to Figure 7 and Figure 8 for detailed diagrams. Note: It is easier to fit the pipe after the rotor is in position but it may be placed prior to fitting rotor. CANNON Ravenfield BS/C+ HTHS Reference Manual...
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 the label becomes defaced or detached, a serial number label is also attached to the yoke, which becomes visible when the head cover is removed.
The following images, Figure 10 and Figure 11, detail the various components discussed in this section. Figure 10: Clean Rotor and Stator Assembly Cannon Instrument Company | Setup the Ravenfield BS/C+ Viscometer...
O Ring Clamp Cell Clamp Ring Top O Ring Stator Bottom O Ring Figure 11: Rotor and Stator Assembly Fitted (section view) CANNON Ravenfield BS/C+ HTHS Reference Manual...
This is correct and will be adjusted later to allow for shear heating of the sample. 11. Once the apparatus has been heating for approximately 30 minutes, proceed to the next steps. Cannon Instrument Company | Start Instrument...
Note: The target temperature difference between bath and thermocouple is 4 °C to 5 °C. Greater than 10 °C difference will cause difficulties. Figure 12: Complete Rotor and Stator Assembly CANNON Ravenfield BS/C+ HTHS Reference Manual...
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 14: Rotor and Stator Assembly CANNON Ravenfield BS/C+ HTHS Reference Manual...
4. The ball stop has a screw to adjust the turning friction. This is set to make the stop fairly stiff to turn. Do not use this as a lock. Flush the Stator 5. Attach the funnel to the side arm using the short sleeve of the supplied silicone rubber. Cannon Instrument Company | Start Instrument...
Note: CANNON advises operators to periodically remove and clean the silicone sleeve with solvent. 6. Flush out the stator with solvent several times applied at the top of the rotor, turning the rotor gently with fingers only to ensure that no particles are trapped in the component. Remove the solvent by aspiration at the side arm.
Enter Sample Data The operator needs to enter the all the necessary data before proceeding with a test. To begin, select from the Main Menu. The Constants screen will appear as shown in Figure 19. Cannon Instrument Company | Computer Control...
Figure Figure 21: Error/incorrect or incomplete data message All the required data must be entered for the rotor constants under option of the constants screen. CANNON Ravenfield BS/C+ HTHS Reference Manual...
Choosing Operating Mode selects the test method employed by the instrument. Each mode from ASTM, CEC or IP selects 150 °C and 10 . The operation option is explained in further Direct Mode sections. Cannon Instrument Company | Computer Control...
“next screen”. The new calibration screen will appear as shown in Figure 24. Figure 24: New Calibration Screen At the new calibration screen the operator can choose to start a new calibration or amend an existing one. CANNON Ravenfield BS/C+ HTHS Reference Manual...
The cutoff screen will appear as shown in Figure 26. Figure 26: Cutoff Screen Nothing further will happen until the switch is returned to the Motor position. Press for the motor to ramp back up to speed and display the original menu. Cannon Instrument Company | Computer Control...
Note: If this adjustment takes a long time, use a fresh funnel full of oil at five or ten minute intervals. CANNON Ravenfield BS/C+ HTHS Reference Manual...
PRESS FN indicating it is now possible to press a function key (D, E or F) or a selection key (A, B or C). 3. Press D. The instrument then displays the CALIBRATING NOW message. Cannon Instrument Company | Computer Control...
The machine needs to be recalibrated. 1. If the correlation is greater than .9999 then press C. 2. Press A. The results now appear on the screen and can be scrolled through using the arrows. Refer to Figure 31. CANNON Ravenfield BS/C+ HTHS Reference Manual...
5. Enter a reference for the sample: a. Press b. Enter a reference of up to six characters c. Press ENTER to continue 6. Press C. The torque, temperature and speed screen will appear as shown in Figure 33. Cannon Instrument Company | Computer Control...
When two or three torque results are selected, the average is automatically used to calculate the displayed viscosity. 7. Repeat steps 4 and 5, noting all determinations and results on the provided reporting sheet ( Appendix “Calculations”). CANNON Ravenfield BS/C+ HTHS Reference Manual...
150 °C. Ensure that the rate of temperature rise does not exceed 0.5 °C/sec. Adjust the bath settings as necessary and repeatedly insert samples to cool the head until satisfactory conditions are obtained. Cannon Instrument Company | Sampling Technique...
Appendix 2 “Polishing Damaged Rotors and Stators”. CANNON advises that Ravenfield BS/C+ 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.
Offsets, to display the Platinum Resistance Thermometer offset table. This table records a list of corrections to be automatically applied to the temperature measurements in order to correct for errors in the measurement system. • Select to return to the Main Menu. Cannon Instrument Company | Normal Use...
3. Apply the supplied 150 gram calibrated weight to the head. Press ENTER when ready. Refer to Figure 37 and Figure 38. Figure 37: Applying Torque Load 4. You will then be returned to the sub-menu. Set Up CANNON Ravenfield BS/C+ HTHS Reference Manual...
3. Set the regulated bath to the desired operating temperature. Use the arrow keys to adjust the indicated temperature until it agrees with the reading of your precision measurement system. Refer to Figure 39. Cannon Instrument Company | Normal Use...
C, of the Setup Instrument Constants sub-menu may be employed. Using a password system can disable these features and prevent any function except measurement. Password function is discussed later in this manual. CANNON Ravenfield BS/C+ HTHS Reference Manual...
Figure 41. Here is it possible to use the machine in non-standard ways. Figure 41: Direct Mode Options Screen Manual Operation/TWEAK Mode To enter TWEAK mode, press E. Refer to Figure 42. Cannon Instrument Company | Direct Mode Operation...
If the first parameter is Rate/B, then the displayed speed is fixed and the gap varies with rate. If the first parameter is Gap/A, then the displayed rate is fixed and the speed varies with gap. CANNON Ravenfield BS/C+ HTHS Reference Manual...
Main Menu. Calibrate/Clear instrument to bring up the sub-menu. 3. Select option to open the Change Password screen. This option is not displayed on screen but is available. Refer to Figure 43. Cannon Instrument Company | Direct Mode Operation...
Figure 44: 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 as shown in Figure 45. Figure 45: Incorrect Password Screen CANNON Ravenfield BS/C+ HTHS Reference Manual...
The following sections offer a basic insight into the autosampler. For more detailed information and instructions, please refer to the designated Autosampler Manual or contact your CANNON representative. Figure 46: Ravenfield DSR Autosampler...
4. Connect the autosampler feedpipe to the side arm. 5. Place viscosity standard sample vials on the carousel. 6. Identify standard oil samples on carousel in autosampler software. Make sure the samples are loaded in the correct positions (see samples test tab). CANNON Ravenfield BS/C+ HTHS Reference Manual...
Sample IDs 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 Instrument Company | Autosampler with Windows...
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...
Please contact CANNON before returning a product that could possibly contain hazardous material. 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 Instrument Company | Warranty...
Replacement Parts List CANNON carries a full supply of parts in the case that any Ravenfield BS/C+ viscometer components need replaced. Refer to Table 5 for a list of available parts. Table 5: Replacement Parts List Description Part Number Ultrasonic Bath 80.5020...
(5) (. −) = ∗� ∗ .01∗�360−4 −1 ��∗ ∗∗ℎ ℎ [360∗2∗981] Note that the term in square brackets is constant for a given rotor/stator system. Cannon Instrument Company | Appendix 1 - Calculations...
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( ) ∗ (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 Ravenfield BS/C+ HTHS Reference Manual...
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. Cannon Instrument Company | Appendix 2 - Polishing Damaged Rotors and Stators...
6. Using a small amount of fresh compound on a tissue wrapped around your finger, hand polish the surfaces of both rotor and stator. 7. CANNON advises user to separate the rotor from its shaft, removing the grub screw, and clean all components in an ultrasonic bath before re-assembling.
Appendix 3 - Spare Parts CANNON recommends the spare parts located in Table 6. 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.
2. Press the space between the 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 Ravenfield BS/C+ HTHS Reference Manual...
Figure 50 is a section of a rotor and stator at the dial gauge zero-ing position. Note the parameter, S, which is on the rotor stator calibration certificate. S is the length of the tapered surface of the stator, where measurement torque will be generated. Cannon Instrument Company | Appendix 5 - Target Torque...
Conversely, it can be clearly seen that the equation Torque= Rc x g x η x (s-a) is linear, since it can be re- written as Torque = -ka + ks, where k=Rc.g.η, and which is linear in “a” CANNON Ravenfield BS/C+ HTHS Reference Manual...
If the torque creeps up then the motor needs to be stopped with the cutoff switch and investigated, perhaps needing to add fresh oil or raise the rotor and flush it out. Cannon Instrument Company | Appendix 5 - Target Torque...
There is no absolute figure for the depth of the rotor in the stator. Microscopic surface changes occur during use of the rotor and stator, and each instrument must derive individual target torques and depths on the equipment when the rotor and stator have been levelled and set up. CANNON Ravenfield BS/C+ HTHS Reference Manual...
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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. Cannon Instrument Company | Appendix 5 - Target Torque...
Damping plate is approximately central in the aperture in the Damping chamber lid. 5. Gently screw down the adjuster until the motor body just ceases to move freely, and then loosen it 1.5 turns. Holding is in this position, fasten the lock nut. CANNON Ravenfield BS/C+ HTHS Reference Manual...
Adjust it under its clip until this is correctly fitted. 7. Replace the damping fluid according to instructions provided in manual. Figure 56: Damping Chamber Components Cannon Instrument Company | Appendix 6 - Instructions for Removing, Cleaning & Re-Fitting the Damping Chamber...
Remove the bottom cover by removing three screws. Refer to Figure 57. Figure 57: 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 58. CANNON Ravenfield BS/C+ HTHS Reference Manual...
7. Slide the block jig with the two balls in its top face under the motor sleeve as shown in Figure 60. Figure 60: Insert Block under Motor Sleeve 8. Mark the spring clamping plates and then remove all four clamping plates and both plate springs. Cannon Instrument Company | Appendix 7 - Re-Fitting Plate Springs on Ravenfield BS/C+ Viscometers...
3. Remove all covers from the heating chamber. Remove the lower cover by removing the clamping handle, then inserting a broad bladed screwdriver in the provided notch and twisting. 4. Fit the dial test indicator (DTI). CANNON Ravenfield BS/C+ HTHS Reference Manual...
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16. Set the limit stop screws to allow the motor to give readings of approximately -250 to +800 and re- lock the lock nuts. 17. Replace all remaining covers. Cannon Instrument Company | Appendix 7 - Re-Fitting Plate Springs on Ravenfield BS/C+ Viscometers...
6. Using the previously used weights, check to ensure a straight line is created. 7. If line is not straight, repeat step 2. This procedure is self-correcting and should be accurate the second time. CANNON Ravenfield BS/C+ HTHS Reference Manual...
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 a concise, quick-start guide. The full Julabo® manual is included with the bath. Once the instrument has been set up there is little operator input required.
Figure 62: Julabo Display Diagram 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.
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These temperatures may need adjusting during operation to achieve the correct rate of rise of temperature of less than 0.04 °C per second as the torque reading is taken automatically at the desired test temperature. CANNON Ravenfield BS/C+ HTHS Reference Manual...
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3. Press down arrow until displays, then press OK. 4. Press down arrow until displays, press OK. 5. Current parity setting will flash. Press up or down arrows until displays. 6. Press Cannon Instrument Company | Appendix 10 - Julabo® Bath Quick Start...
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OK. 4. Press down arrow until displays, press OK. 5. Current handshake setting will flash. Press up or down arrows until SOFt is displayed. Press OK. 6. Press back arrow to return to display. CANNON Ravenfield BS/C+ HTHS Reference Manual...
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