Procedure
1. At opened door, lead the sensor cable through a cable gland close to the slot where
the CHARM to be connected is installed.
2. Strip the cable sheath at a length of approximately 200 mm.
3. Strip each wire at a length of approximately 10 mm.
4. Connect the wires to the CHARM Terminal Block.
Table 5-2: RTD connections
RTD Type RTD Terminals RTD CHARM Terminals
4-wire Sensor signal 1
Sensor signal 2
Supply + 3
Supply - 4
3-wire Supply + and Sensor signal 1
Sensor signal 2
Supply - 4
2-wire Supply + and sensor signal 1
Supply - and sensor signal 2
Connect the cable shield to a grounding terminal (see Grounding).
5. Ensure that the cable gland, where the signal cable is led through, is closed to keep
the IP protection class of the AMS Asset Monitor.
6. Continue with the installation or close the door (see Close the AMS Asset Monitor).
5.9 Install a Thermocouple/mV input CHARM
The Thermocouple/mV input CHARM is a CHARM for temperature measurement with
thermocouples. The CHARM is supplied by the AMS Asset Monitor. A CHARM
Thermocouple/mV Terminal Block is required for the installation. See Installing CHARMs
hardware for the general CHARM installation procedure.
Installing CHARMs hardware Installation Guide
March 2024 MHM-97923-PBF
64 MHM-97923-PBF, Rev. 2.10
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