The Model 80 Recording Atmospheric Consistometer is utilized to condition cement slurries in accordance with API Specification 10. Determination of rheological properties, examination of free water content, and evaluation of the API fluid loss test all require that the cement slurry be conditioned by an atmospheric consistometer. The OFITE Model 80 incorporates the same features as our Model 60 Atmospheric Consistometer and additionally, measures and reports temperature and consistency as a function of time via a strip chart recorder.
Method of Operation:
A cement slurry is prepared according to the procedures outlined within API Specification 10 and then placed within the slurry containers of the Model 80 Recording Atmospheric Consistometer. The slurry is typically stirred at 150 rpm by an API-designed paddle and the temperature is increased to the desired level. The temperature is controlled by a microprocessor, which displays the process temperature via a digital indicator. Consistency, measured in Beardon Units (Bc), is determined by measuring the deflection of a calibrated spring. This deflection is created by the amount of torque that the cement slurry exerts upon the paddle and is a function of the consistency of the cement. A potentiometer mechanism generates an output voltage signal, which is directly proportional to the consistency of the cement. The chart recorder transforms the output voltage signal into Beardon Units of consistency, which is digitally displayed and permanently recorded on the strip chart.
Features and Specifications:
-Operating temperatures to 200°F
-Three-channel strip chart recorder measures temperature and consistency of each container
-Unit operates at atmospheric pressure
-Microprocessor temperature controller
-Digitally displays process temperature
-Heat transfer fluid is circulated
-Heater wattage is 1,500
-Slurry container rotational speed is 150 rpm
-Dual sample container design
-Two alarms indicate termination of the test
-Cooling coils
-Stainless steel temperature bath
-Deadweight calibration unit
Instrument Requirements:
-Water supply for cooling
-Water drain
-120 Volt, 50/60 Hz, 20 Amp
-220 Volt, 50 Hz, 10 Amp
Size: 30 x 16 x 18 inches (76.2 x 40.6 x 45.7 cm)
Weight: 105 lbs (47.7 kg)
Crated Size: 23 x 20 x 22 inches (58.4 x 50.8 x 55.9 cm)
Crated Weight: 170 lbs (77.2 kg)
Components:
#120-305 Strip Chart Recorder Paper
#120-307 Red Chart Recorder Pen
#120-308 Blue Chart Recorder Pen
#120-309 Green Chart Recorder Pen
#120-604 Potentiometer Resister
#121-001 O-Ring for Slurry Container
#121-002 Retaining Ring
#121-003 Paddle Assembly
#121-004 Calibration Spring
#121-005 Cap Nut
#121-006 Shear Pin
#121-007 Rotator Thrust Bearing
#121-008 Thermocouple
#121-009 Timing Belt
#121-010 Heater
#121-012 Fuse, 1 Amp
#121-013 Slurry Container
#121-014 Slurry Container Bottom
#121-015 Fuse, 2 Amp
#121-016 Fuse, 7 Amp
Optional:
#120-83 One Year’s Spare Parts for 120-80-1
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