RKI Instruments Pioneer 4W - Manual (Page 18)

14 • Installation and Start Up Pioneer Gas Monitor Operator’s Manual
Wiring the Pioneer Gas Monitor
This section describes procedures to connect the AC power source, DC power source,
external alarm(s), recorder, and detector(s). See Figure 3-2 for a general wiring diagram of
all external wiring to the Pioneer.
After completing all wiring connections, install 3/4 in. NPT
conduit plugs in all unused conduit hubs. See Appendix A. Parts List, for ordering information.
WARNING: Make all connections to the Pioneer before you plug in or turn on the AC or
DC power source. Before you make any wiring adjustments, always verify
that all power sources are not live.
Connecting the AC Power Source
NOTE: If you are using DC power as the primary power source, go to the next section,
“Connecting the DC Power Source” on page 15.
Perform the following procedure to connect the AC power source to the Pioneer.
WARNING: Verify that the power source is unplugged or turned off at the power source
end before you continue with this procedure.
1. Open the housing door, and locate the AC terminal strip (TB1). See Figure 2-1, Pioneer
Gas Monitor Component Location, to assist you in locating the AC terminal strip.
2. Remove the AC terminal cover by removing the two screws that retain it.
3. Guide the AC power cord through the leftmost conduit hub on the bottom of the
Pioneer housing.
CAUTION: Do not route power and detector wiring through the same conduit hub. The power
wiring may disrupt the transmission of the detector signal to the monitor.
4. Connect the AC line to the AC terminal strip as shown in Figure 3-3. (Connect the
ground wire to the ground stud on the lower left corner of the main circuit board.)
5. Replace the AC terminal cover.
Figure 3-3: AC Power Wiring
1
2
AC Power
Source
AC Terminal Strip
3
Hot
(factory-wired) Ground
Neutral