Installation Instructions

Document No. 129-433
Installation Instructions
February 18, 2016
Page 2 of 4 Siemens Industry, Inc.
· If used in connection with steam humidifiers,
the distance to the humidifier must be a
minimum of 9.8 feet (3 m). The distance
should be as great as possible, but no more
than 33 feet (10 m).
NOTES: To ensure degree of protection IP 54, the
sensor must be fitted with the cable entry
pointing downward.
Handle the immersion rod carefully. The
internal sensing elements are susceptible
to impact and shock.
Figure 1. Acceptable Mounting Positions.
Instructions
1. Drill a 7/8-inch diameter hole into the duct at the
desired location of the sensor.
2. Decide if the sensor will be mounted directly to
the duct or if the mounting flange will be used.
· Sensor Mounting Bracket Installation
a. Remove the sensor cover, using the
indented tabs. See Figure 2.
Figure 2.
b. Use the bracket as a template, and drill
two holes with a No. 26 (0.147-inch) drill
bit.
Figure 3. Drilling Template.
c. Attach the sensor mounting bracket and
gasket to the duct using two No. 8 ×
1-inch sheet metal screws. See Figure
4 .
Figure 4.
d. Insert the sensor in the duct through the
bracket and tighten the mounting screw
to set the insertion depth. See Figure
4 .
· Direct Installation:
a. Remove the sensor cover, using the
indented tabs. See Figure 2.
b. Use the base as a template, and drill
four holes with a No. 26 (0.147-inch)
drill bit. See Figure 3.
c. Insert the probe through the gasket and
into the hole. Secure the head to the
duct with four No. 8 × 1-inch sheet
metal screws.
d. Attach conduit or plenum wire to the
sensor base.
e. If you are using conduit, pull the field
wiring through the conduit and into the
sensor base.
f. Connect the field wiring to the sensor
terminal block on the base. See Figure
7 through Figure 10 for wiring diagrams.
g. Reinstall the sensor cover. See Figure
4 .
The installation is now complete.