Analytical Industries GPR-1600 MS Series PPB Oxygen Analyzer - Manual (Page 18)

Advanced Instruments Inc.
18
Electrical Connections
The appropriate AC power requirement must specified be specified at order placement if the analyzer is to be equipped with the
temperature control heater system. Incoming power for the 100-250V AC powered analyzers is supplied through a universal
power entry module. A standard computer type power cord (P/N A-1008) is required for the universal power entry module. A
well grounded insulated power cable is recommended to avoid noise resulting from unwanted interference.
Power consumption is approximately 150-200 watts with the temperature control heater system and 30 watts without.
Caution: Integral 4-20mA converters are internally powered and do not require external power. DO NOT supply any voltage to
any of the terminals for 4-20mA signal output and range ID or the 4-20mA converters will be damaged.
Caution: To assure proper grounding, connect the 4-20mA signal output to the external device (PLC, DCS, etc.) before
attempting any zero or span adjustments.
Optional Range ID:
The standard 4-20mA output used for range indentification, as described below, can be replaced by eliminating the alarms
feature and using the relay contacts associated with the alarms to provide a single common and four (4) normally open relay
contacts that close when the related range is active. The dry contacts are rated at 30VDC @ 1A and powering them is not
required if the PLC can distinguish contact closure via continuity check.