65-2330RKSS H
2
S Transmitter • 9
CAUTION:
The third potentiometer is factory-set. Do not adjust it.
Test Points
The test points (red and black) are on the left side of the amplifier (see Figure 3). The test
points produce a 100 mV to 500 mV output that corresponds to the transmitter’s 4 to 20 mA
output. Use the test points and a voltmeter to measure the transmitter’s output during the start-
up and calibration procedures. The black test point in the lower left corner is the negative (-)
test point and the red test point below the zero pot is the positive (+) test point.
Junction Box
The stainless steel, corrosion resistant junction box allows you to install the detector at a
mounting site that is remote from a controller, and it protects the amplifier and wiring
connections made to the amplifier. Two conduit hubs allow you to mount the detector to the
junction box and connect the wiring from the detector to a controller. An O-ring seals the
interface between the junction box cover and the junction box base.
The amplifier is factory installed in the junction box. A cover on the front of the junction box
allows access to the interior of the junction box. A locking set screw on the junction box cover
allows you to secure the junction box cover and prevent it from being removed.
