Analog (4-20 Ma) Inputs And Sensor Excitation Voltage - Michell Instruments XTP501 User Manual

APPENDIX A
4.5.7 Analog (4–20 mA) Inputs and Sensor Excitation Voltage
The 501 features 2 input channels for 4-20 mA signal from external instruments such
as pressure transmitters or other devices to compensate for pressure or background
gas influence.
The input configured as EXT SENS (External Sensor) can be viewed on the Secondary
Parameters Page under the heading EXT I/P (External Input).
Channel 1 is the External Compensation input.
Channel 2 is the External Sensor input.
NOTE: The excitation voltage is the same as the power supply ±1 (max 100
mA per channel).
38
Pin Number Description
1 Channel 2 -VE
2 Channel 2 +VE
3 Channel 1 Feed
4 Channel 1 +VE
5 Channel 1 -VE
6 Channel 2 Feed
NOTE: The above view of the electrical
connections is shown from the mating side.
Here are the connections as viewed from the back of the
connector and this should be used for wiring purposes.
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99976 Issue 1.1, May 2020