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10
Operation
Timer
The timer is continuously on whenever power is applied to the unit. The unit
will measure elapsed time to its maximum value and then stop at setpoint 2.
By default, setpoint 1 is set to 15 seconds and setpoint 2 is set to 50 seconds.
These values conform to the guidelines established in API Specification 10.
To change these values, do the following:
1. Press “1” (3) or “2” (4) to change setpoint 1 or setpoint 2 respectively.
2. The display will show the current setpoint value. The four buttons beneath
the display (3 – 6) each increase a separate digit of the setpoint value.
The digits will scroll from 0 to 9 and then return to 0.
3. When you reach the correct setpoint value, press the enter button (7) to
store it in the timer's memory.
The Constant Speed Blender has two setpoints that are set at the factory.
For Cementing testing, Setpoint 1 and Setpoint 2 are set to 4,000 and 12,000
RPM respectively. For Fracturing Fluid testing, they are set to 500 and 1,000
RPM.
To change these values, do the following:
1. Press “SETPT” (10) to activate the speed control menu.
2. Use the arrow keys to scroll to either “SETPOINT 1” or “SETPOINT 2”.
3. Press “ENTER” (11).
4. Key in the numeric value (rotational Speed) of the new setpoint with the
keypad.
5. Press “ENTER” (11) to store the new value into the controller’s memory.
Operation
Speed Controller