User Manual

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Pioneer Gas Monitor Operator’s Manual Installation and Start Up • 17

Connecting RKI Detectors

See the manual insert(s) in Appendix B, Gas Detectors, to wire the detector(s) supplied by

RKI Instruments, Inc., to the Pioneer.

Connecting User-Supplied 4 to 20 mA Transmitters

NOTE: :

See the manual insert, “Generic 4 to 20 mA Transmitter,” in Appendix B,

Gas Detectors, for more detailed information related to the use of user-supplied

4 to 20 mA transmitters with the Pioneer.

Perform the following procedure to connect a 4 to 20 mA transmitter (that you supply) to

the Pioneer.

1. Open the housing door, and locate the detector terminal strip on the applicable

analyzer card. (The detector terminal strip is the 7-point terminal strip that is below

the analog output terminal strip.)

2. Route the cable leading from the 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 wiring may disrupt the transmission of the transmitter’s signal to the

Pioneer.

3. Connect the wires to the detector terminal strip of the applicable analyzer card as

shown in Figure 3-7. The detector is the 7-point terminal strip (terminals 1 through 7)

on the card.

Figure 3-7: Generic 4 to 20 mA Transmitter Output Wiring

1 BLK

2 GRN

Detector

Terminal Strip

3 WHT

4 RED

5 4-20

6 24 V

7 Gnd

(+)

(-/FB)

Transmitter

2-Wire Connection