4.1.2.2 4-20mA Sink to Ground Using External PSU
Connection Procedure
• Disconnect power from the system.
• Remove the grey protective cover from the associated input module
• Configure the jumper switches as shown below (i.e. J6, J7, J10, J12, J13 and J14
switched ON, all others OFF)
• Connect the detector head to PL1 observing the above diagram.
• Connect power to the system and ensure the detector head operates.
• Refit grey protective cover.
• Perform software configuration (refer to ‘MCU Software Configuration and System
Calibration Manual’).
• Perform system calibration. Refer to ‘MCU Software Configuration and System Calibration
Manual’ and detector head manufacturers instructions.
This configuration is similar to 4.1.2.1 except an external power
supply is used to provide the loop current.
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