Calibration - ICP DAS USA tM-TH8 User Manual

1.9 Calibration

Warning: It is not recommended that calibration be
performed until the process is fully understood.
The calibration procedure is as follows:
1. Warm up the module for at least 30 minutes.
2. Enable calibration. Refer to Section. 2.21 for details.
3. Connect the zero calibration resistor.
4. Send the zero calibration command. Refer to Section
2.5 for details.
5. Connect the span calibration resistor.
6. Send the span calibration command. Refer to Section
2.4 for details.
7. Repeat steps 2 to 6 three times.
Notes:
1. Calibration resistors are shown below.
2. The tM-TH8 modules must be switched to the DCON
protocol mode before calibrating. Refer to Sections
1.12.1 and 3.6.4 for details of the switching protocol.
Calibration resistor used by the tM-TH8
Zero Calibration Resistor Span Calibration Resistor
0 Ohms
tM-TH8 User Manual, Rev: A1.1 7MH-018-A11
204800 Ohms
15