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10
IQ 310A XCPD Technical/Service Manual
2.4
AC Power Wiring
Electrical connections made in an explosion proof installation are made through rigid steel conduit through
threaded openings in the back or sides of the enclosure and must comply with the National Electrical Code for
installation of equipment in hazardous areas (NEC Article 504,
Intrinsically Safe Systems
).
Connect an electrically separate source of 115 VAC 60HZ to the terminals on the user wiring board marked
L1,
L2, GND.
Figure 2-3. AC Power Wiring
Do not apply power at this time.
Recheck all connections and make sure there are no hazards in the surrounding area, and turn on power. The
meter should come on and do a normal lamp test.
ZERO
GROSS/NET
T
ARE
UNITS
COMMON
+SEN
-SIG
+SIG
-SEN
SHIELD
+EXC
-EXC
TXD
GND
DIGIN 1
DIGIN 2
-SENSE
JUMPER
JUMPER
+SENSE
TB1
TB3
TB5
TB2
TB4
TB6
WIRE TERMINATION OF
EXTERIOR SWITCHES
L1
L2
GND
TB7
TB8
Revision REV
, NEW
ASSEMBY P/N 66036
L1
L2
GND
TB7
TB8
Revision REV
, NEW
ASSEMBY P/N 66036
HOT
NEUTRAL
GND
DISCONTINUED