OFITE, 11302 Steeplecrest Dr., Houston, TX 77065 USA / Tel: 832-320-7300 / Fax: 713-880-9886 / www.ofite.com
10
5. Pull the weight down several times to obtain an average reading.
6. Repeat this process with 50 g and 200 g. Record each weight and
the corresponding reading. These values will help you interpret the
potentiometer readings.
1. Place one slurry container in the Consistometer and leave the other one
out.
2. Place a reference thermometer in the open hole as close as possible to
the thermocouple.
3. Heat the Consistometer to at least three different temperatures from
ambient to 190°F (88°C) to verify it is in calibration.
1. Remove the slurry containers.
2. Place a strip of reflective tape on the rotor.
3. Start the motor and use a laser tachometer to measure the speed of the
rotor.
4. If the rotational speed is not 150 rpm ± 15, refer to page 5 to adjust
the speed.
The timer should be accurate to within one second per 12 minutes. To verify
the timer, start the timer at the same time as a certified timer and compare
the two readings after 12 minutes.
Calibration
Motor Speed
Calibration
Temperature
Calibration
Timer
