• Suitable screw driver for the CHARM Terminal Block screws
• Observe the hints in Wiring guidelines.
Procedure
1. At opened door, lead the signal 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.
• Connect terminal + of the analog output of the field device to terminal 1 of the
CHARM Terminal Block.
• Connect terminal - of the analog output of the field device to terminal 2 of the
CHARM Terminal Block.
• 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).
5.8 Install a RTD CHARM
The RTD CHARM is a CHARM for temperature measurement with RTD sensors. The
CHARM is supplied by the AMS Asset Monitor. A CHARM 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
62 MHM-97923-PBF, Rev. 2.10
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