Copyright 2013 Baker Hughes Company.
English–DPI620G Instruction Manual | 69
Switch Test
4.11 Switch Test
When setting the Switch Test utility on any channel, the software automatically sets up the other
channel for the switch connections.
• CH1, P1, P2 and IDOS/TERPS functions use the CH2 switch connections.
• CH2 functions use the CH1 switch connections.
Note: If there is a measure or source function on the switch connection channel it is automatically
disabled. The display will show a screen message:
Figure 4-35: Switch Test Channel Conflict Message
Figure 4-36: Thermocouple Switch Test
1. Set the applicable channel options:
• The TC function is set to source a temperature.
• The UTILITY is set to SWITCH TEST. The AUTOMATION is set to RAMP.
2. Complete the electrical connections.
3. TC is a CH1 function, so the switch connections must be on CH2.
4. For the Ramp process, set START and STOP values that are applicable to the switch value.
5. To get an accurate switch value, set a long TRAVEL period.
6. Use to start the Ramp cycle.
7. Use to stop the Ramp cycle.
8. If necessary, supply the output values in the opposite direction until the switch changes
condition again.
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