RKI Instruments Pioneer 4W - Manual (Page 82)

Oxygen Transmitter • 6 Pioneer Operator’s Manual (PRELIMINARY)
Wiring the Oxygen Transmitter to the Pioneer
WARNING: Always verify that the Pioneer’s power switch is in the OFF position
before you make wiring connections.
1. Place the Pioneer’s power switch in the OFF position.
2. Loosen the two securing screws from the detector junction box cover, then remove the
cover.
3. Unscrew and remove the amplifier junction box cover.
4. In the detector junction box, verify that the leads from the sensor connector are wired
to the (2-point) sensor terminal block.
5. In the amplifier junction box, verify that the wiring from the opposite side of the
(2-point) sensor terminal block is wired to the amplifier’s detector terminal strip.
If necessary, connect the sensor terminal block and detector terminal strip as shown in
Figure 3.
6. Verify that the jumper block is installed over the OXY selector of the amplifier type
selector as shown in Figure 3.
7. Guide a two-conductor, shielded cable or two wires in conduit through the top
conduit hub of the junction box.
8. Connect the two wires to the interconnect terminal strip as follows (see Figure 3.)
• Connect the positive wire to the terminal labeled 24V + .
• Connect the feedback wire to the terminal labeled 4/20 FB .
CAUTION: Leave the ground wire insulated and disconnected at the transmitter. You will
connect the opposite end of the cable’s ground wire at the Pioneer.
9. Secure the detector junction box cover to the junction box with the two screws you
removed in step 2.
10. Secure the amplifier junction box cover to the junction box.
11. Route the cable or wires leading from the oxygen transmitter through one of the
conduit hubs on the bottom of the Pioneer housing.
CAUTION: Do not route power and transmitter wiring through the same conduit hub. The
power cable may disrupt the transmission of the transmitter signal to the Pioneer.