RKI Instruments 65-2424RK - Manual (Page 9)

65-2424RK H
2
S Transmitter • 5
Wiring the H
2
S Transmitter to a Controller
WARNING: Always verify that the power source is off before you make wiring
connections.
1. Turn off the controller.
2. Turn off or unplug incoming power at the power source end.
3. Remove the enclosure’s cover by unscrewing the four cover screws, one at each
corner.
4. Guide a two-conductor, shielded cable through the cable bushing at the bottom of the
enclosure.
5. Connect the two wires to the interconnect terminal strip as follows (see Figure 3).
• Connect the positive wire to the terminal labeled +V.
• Connect the feedback wire to the terminal labeled FB.
CAUTION: Leave the shield drain wire insulated and disconnected at the transmitter. You will
connect the opposite end of the cable’s drain wire at the controller.
6. Secure the cover to the enclosure.
7. Route the cable leading from the H
2
S transmitter through one of the conduit hubs at
the controller housing.
CAUTION: Do not route controller power and transmitter wiring through the same conduit hub.
The power cable may disrupt the transmission of the transmitter signal to the
controller.
8. Connect the wires to the applicable controller transmitter terminal strip as shown in
Figure 3 below.
Figure 3: Wiring the H
2
S Transmitter to a Controller
+V
R
FB
B
ZERO
SPAN
CAL+
TB1
CAL- 4 - 20 mA In (FB)
+ (10 VDC - 30 VDC)
Controller or Recording
Device