RKI Instruments Pioneer 4W - Manual (Page 13)

Pioneer Gas Monitor Operator’s Manual Description • 9
Analyzer Card
The analyzer card plugs into one of four u-shaped sockets near the bottom right corner of
the main circuit board. Each channel of detection includes an analyzer card. The analyzer
card includes the detector terminal strip, analog output terminal strip, external alarms
terminal strip, pilot light, and three relays.
The terminals unplug from the terminal strips to give better access to the terminals when
you make wiring connections.
Detector terminal strip
The 7-point detector terminal strip (terminals 1 through 7) is the terminal strip closest to
the bottom of the analyzer card. You connect wiring from the detector to the detector
terminal strip.
NOTE: See the applicable detection insert in Appendix B, Gas Detectors, to wire the
detector to the analyzer card.
Analog Output terminal strip
The 2-point analog output terminal strip (terminals 8 and 9) is directly above the detector
terminal strip. You connect wiring from a recording device (if applicable) to the analog
output terminal strip.
The output at the analog output terminal strip is 4 to 20 mA or 0 to 1 V. The output is
selectable by jumpers on the analyzer card. The standard (default) output is 4 to 20 mA.
External alarms terminal strip
NOTE: The Pioneer also includes two common external alarm terminal strips. These
common terminal strips activate external alarms for all active channels.
The 9-point external alarm terminal strip is above the analog output terminal strip. You
connect wiring from external alarms (if applicable) to the external alarm terminal strip.
This terminal strip has common (C), normally closed (NC) and normally open (NO)
terminals for alarm 1, alarm 2, and alarm 3 connections.
Pilot light
The pilot light is between the external alarms terminal strip and analog output terminal
strip. The pilot light flashes when the analyzer card is receiving power and operating
normally. The pilot light does not flash or is off when a failure occurs.