RKI Instruments Pioneer 4W - Manual (Page 20)

16 • Installation and Start Up Pioneer Gas Monitor Operator’s Manual
CAUTION: If the external alarm device is powered by AC current, do not route the external
alarm wiring and detector wiring through the same conduit hub. The external alarm
wiring may disrupt the transmission of the detector signal to the Pioneer.
3. Connect the leads from the external alarm to the terminals on the appropriate external
wiring terminal strip as shown in Figure 3-5. See Table 2-1, Terminal Assignments for
the External Wiring Terminal Strips, to determine the applicable external alarm
terminals.
Figure 3-5: External Alarm Wiring
4. Repeat steps 2 and 3 for additional external alarms.
Connecting Recorders
Perform the following procedure to connect a recording device to the Pioneer. The output
at the analyzer card’s analog output terminal strip is a 4 to 20 mA
or 0 to 1 V signal that is
proportional to the detection range of the applicable detector. Unless specified, the
analyzer card is set up at the factory for 4 to 20 mA output.
1. Open the housing door, and locate the analog output terminal strip on the applicable
analyzer card. (The analog output terminal strip is the 2-point terminal strip between
the detector terminal strip and the external alarm terminal strip.)
2. Guide the wiring from the recording device through one of the conduit hubs 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.
3. Connect the leads from the recording device to the analog output terminal strip as
shown in Figure 3-6.
Figure 3-6: Recorder Output Wiring
COM
NO
External Wiring
Terminal Strip (TB2, TB3)
NC
External
Power Source
+ (H) — (N)
External
Alarm Device
+ (H)
— (N)
9
8
Analog Output Terminal Strip
Recording
Device
+
—
(on analyzer card)
(Rec Out +)
(Rec Out -)