Chapter 6 Temperature Measurement Module AH04TC/AH08TC 
6-15 
2.  Pull up the clip. 
 
 
3.  The terminal block is removed. 
 
6.3.3  Wiring 
  Precautions 
In order to make the functions of a temperature measurement module perfect and ensure the 
reliability of a system at the same time, external wiring which prevents noise is necessary. Before 
installing cables, users need to follow the precautions below. 
(1)  To prevent a surge and induction, an AC cable and input signal cables which are connected 
to AH04TC-5A/AH08TC-5A must be separate cables. 
(2)  A cable must not be installed near a main circuit, a high-voltage cable, or a cable connected 
to a load which is not a PLC. Besides, a cable must not be bound to a main circuit, a 
high-voltage cable, or a cable connected to a load which is not a PLC. Otherwise, effects 
that noise, induction, and a surge have will increase. 
(3)  Please connect a shielded cable and a hermetically sealed cable with the ground 
separately. 
(4)  Terminals with insulation sleeves can not be arranged as a terminal block. It is 
recommended that the terminals be covered with insulation tubes.