OfiTE 800 Instruction Manual Download

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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

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

Summary of Contents for 800

Page 1: ...g 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...

Page 2: ...Tel 832 320 7300 Fax 713 880 9886 www ofite com 1 Introduction 2 Description 2 Components 3 Specifications 5 Safety 8 Setup 11 Calibration 12 Operation 15 Calculations 17 Disassembly 17 Maintenance 18...

Page 3: ...nuously monitored and automatically adjusted by the OFITE Pulse Power electronic speed regulator to maintain a constant shear rate under varying input power and drilling fluid shear conditions The eig...

Page 4: ...p Stainless Steel 130 76 28 Motor For 130 11 Model Only 132 50 Rotor Drive 132 56 Rotor Sleeve R1 303 Stainless Steel 132 57 Shield 132 58 Bob B1 303 Stainless Steel 132 59 Bearing Retainer 132 71 Bea...

Page 5: ...32 56H R1 Sleeve Hastelloy 134 10 2 F0 2 Torsion Spring Assembly Green 134 10 3 F0 5 Torsion Spring Assembly Yellow 134 10 4 F2 0 Torsion Spring Assembly Red 134 10 5 F3 0 Torsion Spring Assembly Purp...

Page 6: ...9 3 8 Shear Gap cm 0 117 0 6139 0 9793 0 9793 0 2428 R Ratio RB RR 0 9365 0 666 0 468 0 468 0 8681 Shear Rate Constant kR sec 1 per RPM 1 7023 0 377 0 2682 0 2682 0 8503 Shear Stress Constant for Eff...

Page 7: ...ndard 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 vort...

Page 8: ...ination can measure water fairly well at 100 RPM and higher but at 3 RPM the readings would be shaky at best While on the other hand a linear fluid with a viscosity of 15 000 could not get past 6 RPM...

Page 9: ...by information required to guide the user to choose the proper replacement fuse Direct Current DC This symbol indicates an input or output that is direct current only IEC 60417 5013 Note This symbol...

Page 10: ...wer Inlet Emergency Disconnect Device When connecting the equipment to your power source make sure that the 13 16 VDC is connected to the center pin of the connector The equipment is supplied with a u...

Page 11: ...t environment is adequately ventilated and when necessary appropriate personal protective equipment is employed Hydrogen Sulfide H2 S Methane CH4 Carbon Dioxide CO2 Sulfur Dioxide SO2 Caution Risk of...

Page 12: ...to a 13 16 VDC current limited power source 2 With the instrument turned off place the splash guard onto the bob shaft with the tube end pointed up towards the bob Push up 3 Screw on the appropriate...

Page 13: ...ng well cement should be calibrated quarterly API Recommended Practice 13B 1 and 13B 2 specify viscometers being used for drilling fluids should be checked monthly The OFITE Calibrating Instrument Par...

Page 14: ...fluid to stand at least two hours to equilibrate 3 Operate the viscometer in air for two to four minutes to loosen up the bearings and gears Observe the rotor sleeve for excessive wobbling and replace...

Page 15: ...nd record the deviation plus or minus b Divide the 600 RPM dial reading by 1 98 compare that to standard viscosity and record the deviation plus or minus 8 Deviations exceeding 1 5 dial units are not...

Page 16: ...suring Gel Strength 1 Mix the sample on the STIR setting for 10 seconds 2 Rotate the knob to GEL and immediately shut off the power 3 As soon as the sleeve stops rotating wait 10 seconds and turn the...

Page 17: ...RPM Wait for the reading to stabilize and then record the dial reading and temperature 4 Stir the sample again for 10 seconds 5 Set the speed to GEL and immediately shut off the power 6 As soon as th...

Page 18: ...aximum dial deflection after 10 min K F Viscosity cP K Machine constant for the bob and rotor combination F Spring factor Dial readings RPM Rotational speed Machine constants R1B1 300 R1B2 2 672 R1B3...

Page 19: ...the dial reading in water should be between 0 5 and 2 0 If the viscometer fails to pass any one of the above tests the bearings are bad and should be replaced by a qualified instrument technician Bob...

Page 20: ...dial one turn counterclockwise 7 Gently lift the torsion spring straight up Do not stretch the torsion spring If you are replacing only the torsion spring discard the old spring and skip to step 21 to...

Page 21: ...ng mount Use retaining ring pliers to remove the retainer ring Push the bearing upwards to remove it from the bearing mount 12 Use surgical gloves to insert a new upper bearing into the bearing mount...

Page 22: ...facing the front of the unit 19 Align the bottom set screw on the dial with the flat portion of the bob shaft and tighten firmly Make sure the set screws are perpendicular to the top of the bob shaft...

Page 23: ...with the Zero Knob and tighten the set screw 24 Loosen the set screw on the bridge on turn counterclockwise Adjust the Zero Calibration Knob so that the zero on the dial lines up with the line on the...

Page 24: ...ny losses or damages that occur as a result of Improper installation or maintenance of the products Misuse Neglect Adjustment by non authorized sources Improper environment Excessive or inadequate hea...