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Model 800 Viscometer
#130-10-C/#130-11-C - With Carrying Case and Power Supply
#130-10-L - With Retractable Legs (For Kits)
Instruction Manual
Updated 3/16/2022
OFI Testing Equipment, Inc.
11302 Steeplecrest Dr. · Houston, Texas · 77065 · U.S.A.
Tele: 832.320.7300 · Fax: 713.880.9886 · www.ofite.com
©
Ver. 11
Copyright OFITE 2015
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Summary of Contents for OfiTE 800
- Page 1 #130-10-C/#130-11-C - With Carrying Case and Power Supply #130-10-L - With Retractable Legs (For Kits) Instruction Manual Updated 3/16/2022 Ver. 11 OFI Testing Equipment, Inc. 11302 Steeplecrest Dr. · Houston, Texas · 77065 · U.S.A. Tele: 832.320.7300 · Fax: 713.880.9886 · www.ofite.com Copyright OFITE 2015 ©...
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Page 2: Table Of Contents
Description ..................2 Contents Components ...................3 Specifications .................5 Safety ....................8 Setup....................11 Calibration ..................12 Operation..................15 Calculations ..................17 Disassembly .................17 Maintenance ..................18 Warranty and Return Policy ............23 OFITE, 11302 Steeplecrest Dr., Houston, TX 77065 USA / Tel: 832-320-7300 / Fax: 713-880-9886 / www.ofite.com... -
Page 3: Introduction
OFITE, 11302 Steeplecrest Dr., Houston, TX 77065 USA / Tel: 832-320-7300 / Fax: 713-880-9886 / www.ofite.com... -
Page 4: Components
#171-32 Midget Knob Case: #130-10-13-5 Carrying Case with Custom Foam Insert (For 130-10 Only) #130-11-13-5 Carrying Case with Custom Foam Insert (For 130-11 Only) OFITE, 11302 Steeplecrest Dr., Houston, TX 77065 USA / Tel: 832-320-7300 / Fax: 713-880-9886 / www.ofite.com... - Page 5 Calibration Fluid, 50 cP, 16 oz #134-05-2 Shielded Bearing for Bob Shaft, Qty: 4 #134-10 Torsion Spring Assy, F1 #135-02 External Retainer Ring, Qty: 2 OFITE, 11302 Steeplecrest Dr., Houston, TX 77065 USA / Tel: 832-320-7300 / Fax: 713-880-9886 / www.ofite.com...
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Page 6: Specifications
F 4.0 (White) 1,544 6,720 13,257 26,870 53,841 7,819 F 5.0 (Black) 1,930 16,571 33,587 67,302 9,774 F 10.0 (Orange) 3,860 16,800 33,143 67,175 134,603 19,548 OFITE, 11302 Steeplecrest Dr., Houston, TX 77065 USA / Tel: 832-320-7300 / Fax: 713-880-9886 / www.ofite.com... - Page 7 <a> Computed for standard Torsion Spring (F 1.0). For other torsion springs, multiply by F factor. <b> Lower viscosities can be measured by the Model 800, however one must take into account the effect of bearing drag, Taylor vortices, zero offset, etc. when looking at the expected accuracy of the reading.
- Page 8 RPM(max) * AV(max) Minimum Spring Factor (F) = BOB(F)*90,000 Bob (F) R1B1 R1B2 R1B3 25.4 R1B4 50.7 R1B5 OFITE, 11302 Steeplecrest Dr., Houston, TX 77065 USA / Tel: 832-320-7300 / Fax: 713-880-9886 / www.ofite.com...
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Page 9: Safety
Caution: Note - This symbol is used to indicate statements in the manual which warn against actions which may cause damage to the equipment during routine service or maintenance OFITE, 11302 Steeplecrest Dr., Houston, TX 77065 USA / Tel: 832-320-7300 / Fax: 713-880-9886 / www.ofite.com... - Page 10 This equipment has not been rated according to IEC 60529 Installation The Model 800 Viscometer should be used in a location where it will not be subjected to excessive moisture. It should be placed on a flat, stable surface in a well-ventilated environment.
- Page 11 Speed Selector Knob is in the “Off” position prior to turning the Power (On/Off) Switch to the “On” position. Knob Speed Selector OFITE, 11302 Steeplecrest Dr., Houston, TX 77065 USA / Tel: 832-320-7300 / Fax: 713-880-9886 / www.ofite.com...
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Page 12: Setup
Tighten the lock nut on the platform. Rotor Splash Guard Sleeve Platform OFITE, 11302 Steeplecrest Dr., Houston, TX 77065 USA / Tel: 832-320-7300 / Fax: 713-880-9886 / www.ofite.com... -
Page 13: Calibration
Calibration Fluid, 100 CP, 16 oz (500 mL) #132-83 Calibration Fluid, 200 CP, 16 oz (500 mL) #132-82 Calibration Fluid, 500 CP, 16 oz (500 mL) OFITE, 11302 Steeplecrest Dr., Houston, TX 77065 USA / Tel: 832-320-7300 / Fax: 713-880-9886 / www.ofite.com... - Page 14 6. Once the temperature has stabilized, operate the viscometer at 600 RPM and then at 300 RPM. Note and record the dial readings to the nearest 0.5 dial unit. OFITE, 11302 Steeplecrest Dr., Houston, TX 77065 USA / Tel: 832-320-7300 / Fax: 713-880-9886 / www.ofite.com...
- Page 15 9. Record the viscometer serial number, date, and deviation. Mark on the viscometer the date of calibration and a general indication of the calibration check status. OFITE, 11302 Steeplecrest Dr., Houston, TX 77065 USA / Tel: 832-320-7300 / Fax: 713-880-9886 / www.ofite.com...
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Page 16: Operation
4. For the 10 minute gel strength, re-stir the fluid and wait 10 minutes before recording the maximum dial deflection. OFITE, 11302 Steeplecrest Dr., Houston, TX 77065 USA / Tel: 832-320-7300 / Fax: 713-880-9886 / www.ofite.com... - Page 17 This is the 10 second gel strength. 7. For the 10 minute gel strength, re-stir the fluid and wait 10 minutes before recording the maximum dial deflection. OFITE, 11302 Steeplecrest Dr., Houston, TX 77065 USA / Tel: 832-320-7300 / Fax: 713-880-9886 / www.ofite.com...
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Page 18: Calculations
Clean all removed parts with soap and water and dry them thoroughly. Keep the instrument upright at all times, especially when cleaning so that water does not get into the bearings. OFITE, 11302 Steeplecrest Dr., Houston, TX 77065 USA / Tel: 832-320-7300 / Fax: 713-880-9886 / www.ofite.com... -
Page 19: Maintenance
3. Remove all four flat-head screws on the outer housing cover and gently lift the cover upward. 4. Loosen the set screw at the top of the Zero Calibration Knob one turn counterclockwise. OFITE, 11302 Steeplecrest Dr., Houston, TX 77065 USA / Tel: 832-320-7300 / Fax: 713-880-9886 / www.ofite.com... - Page 20 Bearing Mount #130-10 Model Torsion Spring Set Screw (Step 4) Zero Calibration Knob Bridge Set Screw (Step 6) Dial Index Block Bearing Mount #130-11 Model OFITE, 11302 Steeplecrest Dr., Houston, TX 77065 USA / Tel: 832-320-7300 / Fax: 713-880-9886 / www.ofite.com...
- Page 21 Slide the bearing and bearing shield off the bob shaft. 16. Use surgical gloves to slide a new lower bearing onto the bob shaft. OFITE, 11302 Steeplecrest Dr., Houston, TX 77065 USA / Tel: 832-320-7300 / Fax: 713-880-9886 / www.ofite.com...
- Page 22 22. Slide the index block into place. Tighten the two screws. Make sure the zero mark on the dial is aligned with the mark on the index block. OFITE, 11302 Steeplecrest Dr., Houston, TX 77065 USA / Tel: 832-320-7300 / Fax: 713-880-9886 / www.ofite.com...
- Page 23 Tighten the set screw. 25. Replace the bob and sleeve. 26. Re-attach the main housing cover. 27. Re-attached the speed control knob. 28. Re-calibrate the instrument. OFITE, 11302 Steeplecrest Dr., Houston, TX 77065 USA / Tel: 832-320-7300 / Fax: 713-880-9886 / www.ofite.com...
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Page 24: Warranty And Return Policy
In the event that OFITE is requested to provide customized research and development for the buyer, OFITE shall use its best efforts but makes no guarantees to the buyer that any products will be provided. OFITE makes no other warranties or guarantees to the buyer, either express or implied,...
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