User`s guide

ACLD-8125 • 17
3.3.2 CJC Output Configurations
An on-board Cold Junction Compensation (CJC) circuit is provided by the
ACLD-8125 for thermcouple measurement. The CJC is connected with
Channel 0 of the internal connector. The circuit of CJC and CH0 is shown
as following:
The jumper setting for CJC output configuration are as following:
(1) Fully Differential Single-ended with CJC
(2) Single-ended with CJC
(3) Disable CJC
JP2
CHOH
CIOH
CHOL
CJC
Circuitry
JP1
CHOL
1
2
3
1
2
3
JP1:1-2
JP2:1-2
JP2
CHOH
AIO
JP1
1
2
3
1
2
3
JP1:2-3
JP2:2-3
CHOL
AI8
AIOH
AIO
AILO
AI8
JP2
AIO
AIOL
AI8
CJC
Circuitry
JP1
AI8
1
2
3
1
2
3
JP1:1-2
JP2:2-3
CJC
Circuits
CJC
Circuits