Atmospheric Consistometer Model 165AT

Recording Atmospheric Consistometer

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 paperless graphic 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 Bearden 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 graphic recorder transforms the output voltage signal into Bearden Units of consistency, which is digitally displayed and stored on disk for later analysis.

Features and Specifications:

• Operating temperatures to 200°F
• Multi-channel paperless graphic 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
• 115-Volt, 50/60 Hz, 20-Amp
• 230-Volt, 50 Hz, 10-Amp

Size: 30" x 16" x 18" (76 x 41 x 46 cm)
Weight: 105 lb (47.7 kg)

Crated Size: 23" x 20" x 22" (58 x 51 x 56 cm)
Crated Weight: 170 lb (77.2 kg)
 

Atmospheric Consistometer

The Model 60 Atmospheric Consistometer is used for conditioning cement slurries as specified within 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 pre-conditioned by an atmospheric consistometer. The OFITE Model 60 was specifically developed to perform these duties.

Method of Operation:

A cement slurry is prepared according to the procedures as outlined within API Specification 10 and then placed within the slurry containers of the consistometer. The slurry is stirred at 150 RPM by an API-designed paddle while the temperature is increased to the desired level. The temperature is controlled by a micro-processor, which displays the process temperature via a digital indicator. Consistency, measured in Bearden Units (Bc), is determined by measuring the deflection of a calibrated spring. This deflection is created by the amount of torque the cement slurry exerts upon the paddle and is a function of the consistency of the cement. The API defines 100 Bc as 2,080 gm-cm of torque.

Features and Specifications:

• Maximum operating temperature of 200°F
• Unit is operated at atmospheric pressure
• Temperature is maintained via a PID controller
• Process temperature is displayed digitally
• Heat transfer fluid is continuously circulated
• Heater wattage is 1,500
• Slurry container rotational speed is 150 RPM
• Dual container design Cooling system included
• Stainless steel temperature bath Deadweight calibration unit

Instrument Requirements:

• Water supply for cooling
• Water drain
• 115-Volt, 50/60 Hz, 4.4 KVA power source
• 230-Volt, 50/60 Hz, 2.2 KVA power source

Size: 24" x 16" x 18" (61 x 41 x 46 cm)
Weight: 95 lb (43.1 kg)

Crated Size: 28" x 20" x 22" (71 x 51 x 56 cm)
Crated Weight: 160 lb (72.6 kg)