Model 640 & 640CC Instruction Manual
D01206676
Revision A February 2016
28
Temperature Calibration Procedure
11.4
Temperature may be calibrated using a temperature calibrator.
1.
With Instrument ON and CementLab running, select INSTRUMENT SETUP
– CALIBRATE TEMPERATURE.
2.
Disconnect thermocouple from inside instrument. The plug is located behind
the heater. Connect the Temperature calibrator to this plug.
3.
Enter a value of 125C or 275F in the calibrator.
4.
Verify that the RAW VALUE on the touchscreen is changing as you enter a
new number into the calibrator. This time enter 25C or 60F into the calibrator.
5.
Enter the same temperature value into the LOW VALUE box in CementLab.
6.
Select SAVE LOW VALUE.
7.
On the calibrator, input 220C or 400F.
8.
Enter the same number into the HIGH VALUE box in CementLab.
9.
Select SAVE HIGH VALUE.
10.
On the calibrator, enter 100C or 200F.
11.
Verify the calibration is reading the same value on the touchscreen.
12.
Select SAVE or DONE and Exit Calibration screen.
Pressure Calibration Procedure
11.5
Pressure may be calibrated using a Digital Pressure Calibrator. Simply remove
pressure vessel and attach calibrator to the thermocouple port on top of the
cylinder. If equipped with software pressure display, start the CALIBRATE
PRESSURE routine as was done for Temperature. Ensure no pressure is on the
pressure vessel and enter zero as the LOW VALUE, SAVE LOW VALUE.
