GRAPHTEC GL820, Service Manual

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GL820-UM-251-9370 4-8
4. SETUP PROCEDURES
4.4 Performing Setup2 (Room Temperature Compensation)
This procedure is required when any part of the relay board is replaced.
Setup the Setup 1 when the amp board was replaced before performing this procedure.
Preparation
• As shown below, use (T: ø0.32 mm, K: ø0.65 mm) temperature compensation leads to connect the input
terminals to the 0˚C reference temperature device (Zero controller).
• Set the AC Line cycle setting of the GL820 to the same cycle as that of your AC line.
Wiring connection
(T) compensation lead
(K) compensation lead
(T) input side
(T) output side
0˚C reference
temperature device
(Zero Controller)
(K) input side
(K) output side
Input 0 V for the output side or short the + and - terminals
AC adapter
Connect the GND terminals.
Connect (T) compensation lead to the CH1, CH6, CH11 and CH16 input terminals.
Connect (K) compensation lead to the CH3, CH8, CH13 and CH17 input terminals.
CAUTION
Connect each compensation copper lead to a single terminal as shown in the above diagram (parallel
wiring is not permitted).