RELAYS
The four or six relays are at least 3A @ 250VAC and 3A @30VDC.
RELAY SUPPRESSION
If the relay connects to an inductive load, one should suppress the relay contacts with a “snubber” circuit, see wiring
diagrams.
115V/230V OPERATION
The PS-1000S-CPU (PCB REV 0644 or above) board contains a voltage selection switch that permits one to select
either 115V to 230V in the field. Be sure to check this switch, as the typical setting is 115V.
ENABLING THE SECOND CHANNEL IN THE FIELD
From the main gas screen, press the right-most push button and then the MNU push button. In the set up menu,
press CFG and then enter the SETUP password (default 0000). Press NXT until “CH2 EN” is displayed. Press ADJ
and press INC until ON is displayed. Press ENT to accept the change to the parameter. Set the remaining
parameters to their correct settings and calibrate the sensor. Also be sure to set the channel two (2) danger and
critical alarm set points.
CHANNEL TWO 4-20mA OUTPUT
An optional PS-1000(S)-AOUT daughter board is used to furnish the second analog output.
POWER UP FUNCTIONS
Press and hold the push button(s) while applying power to the GD-1000.
PB1
PB2
PB3
PB4
DESCRIPTION
X
X
I/O test
X
X
Factory default
Summary of Contents for GD-1000
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