Consistometers Atmospheric Model 1200 & 1250

The Models 1200 and 1250 of Atmospheric Consistometers are specifically designed to be a simple and accurate means to prepare cement slurries for the testing of rheological properties, fluid loss and various other properties in strict compliance with API 10 A/B. These instruments are used daily in laboratories involved in: oil well cement research, research and testing of cement additives, cement quality assurance and the research and field laboratories of well service companies. These instruments increase lab productivity and save valuable technician time by simultaneously conditioning two slurry samples for subsequent testing.

These instruments are simple to operate with all of the controls conveniently located on the front panel. The unit is designed so that closure, heating and pressurization can be achieved quickly. The slurry cup drive automatically rotates the cup at the required, standard rate of 150 rpm. Accurate temperature control of the stainless steel water bath is maintained by a programmable temperature controller as well as a motor-driven stirring mechanism in the water bath that eliminates hot spots on the slurry cups. Indicators for each viscosity and the water bath temperature are readily visible on the front panel of the unit. The Model 1250 adds a strip chart recorder which provides a permanent record of temperature and viscosity measurements. Upon completion of slurry conditioning, cooling coils can be used to quickly lower the temperature of the slurry for safer handling.


- Two Conditioning cups
- Consistency alarms
- Accurate temperature control
- Internal cooling coils
- Stainless steel water bath
- Built-in chart recorder on model 1250
- 150 rpm slurry cup drive


Maximum Temperature 200ºF / 93ºC
Maximum Pressure Atmospheric pressure
Heater Power 1500 Watts
Slurry Cup Rotation Speed 150 rpm
Slurry Cup Volume 28 cubic inches / 470 mL
Consistency Range 0 to 100 Bc (Bearden Units)
Operating Temperature 50 to 120ºF / 10 to 50ºC
Data Acquisition Model 1250 includes a strip chart recorder which tracks the water bath temperature and the consistency of each slurry under test
Compliance API Spec 10A / ISO 10426-1


Cooling Water 20-80 psi / 140-550 kPa; nominal flow 2 Lpm
Power Supply 100-130 VAC or 200-240 VAC ± 15% 50/60 Hz 2 kVA

Dimensions (h x w x d) 25 in. x 15.5 in. x 18 in. / 64 x 39 x 45 cm
Weight 110 lb / 50 kg


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