INSTALLATION
SETUP/PHYSICAL INSTALLATION
I-E96-420A
2 - 5
Use twisted wire pair capable of carrying 100 millivolts to con-
nect the calibration source to the NIAC02 module. Keep the
wire as short as
possible and note the signal polarity. To con-
nect calibration inputs, follow these steps:
1. Remove the front cover.
2. Insure that the NIAC02 module is pulled out far enough to
gain access to the terminal block.
3. Feed the wiring into the terminal strip area from the con-
nected NIAM02 module or from an external source and connect
them to the appropriate terminals: TB1 terminals 1 and 2 are
used for internal source connection, TB1 terminals 3 and 4 are
used for external source connection.
CAUTION
If input or output circuits are a shock hazard after disconnect-
ing system power at the power entry panel, then the door of the
cabinet containing these externally powered circuits must be
marked with a warning stating that multiple power sources
exist.
ATTENTION
Si des circuits d'entree ou de sortie sont alimentes a partir de
sources externes, ils presentent un risque de choc electrique
meme lorsque l'alimentation du systeme est debranchee du
panneau d'entree l'alimentation. Le cas echeant, un avertisse-
ment signalant la presence de sources d'alimentation multiples
doit etre appose sur la porte de l'armoire.
Figure 2-2. Terminal Assignments for the NIAC02 Module
+ EXTERNAL CALIBRATION, INPUT
+ INTERNAL CALIBRATION, INPUT
– EXTERNAL CALIBRATION, INPUT
– INTERNAL CALIBRATION, INPUT
CALIBRATION
SELECT SWITCH
P1
EXT CAL
TB1
4
2
3
1
INT CAL
NIAC02
1
29
T00616A
