RKI Instruments 65-2507RK - Manual (Page 9)

65-2507RK Oxygen Transmitter • 5
2. At the monitoring site, use #10 screws through the junction box’s two mounting holes
to secure the junction box to a vertical surface (see Figure 2).
Figure 2: Mounting the Oxygen Transmitter
Wiring the Oxygen Transmitter to a Controller
WARNING: Always verify that the controller is off and power to the controller is off
before you make wiring connections.
1. Turn off the controller.
2. Turn off power to the controller.
3. Remove the junction box cover.
4. Verify that the detector leads are wired to the amplifier’s detector terminal strip. If
necessary, connect the leads to the detector terminal strip as shown in Figure 3.
5. Verify that the jumper block is installed over the OXYGEN selector of the amplifier
type selector as shown in Figure 3.
6. Install an appropriate cable bushing or conduit fitting on the top conduit hub of the
junction box.
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 .
2.4 in.
(6.1 cm)
Note: The junction box is
4.6 in. (11.7 cm) deep.
5.2 in.
(13.2 cm)
7.8 in. (max.)
(19.8 cm)
5.46 in.
(13.9 cm)
2.75 in.
(7.0 cm)
0.25 in.
DIA.