Mounting sensors on an insulated housing – Rockwell Automation 9000 Series Sensor User Manual
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Entek 9000 Series Sensor Installation Guide
Sensor Mounting
Follow the specific sensor’s guidelines for the dimensions of the hole, the type of set screw,
and the torque for attaching the sensor. The table below lists the data for the 9000 sensors.
Note: For 3/8 deep holes, make sure 1/4 inch of the stud engages the base of the sensor. If you
screw a 1/2 inch stud fully into a 3/8 inch deep hole, that leaves only 1/8 inch of stud to hold
the sensor, which is not sufficient.
The second method is to drill through the machine case or housing, and use a machine screw
to secure the sensor. Spot face the surface, then drill the hole in the machine case or bearing
housing where you want to install the sensor. Follow the sensor’s guidelines for the
dimensions of the hole, the type of machine screw, and the torque for attaching the sensor.
Mounting sensors on an insulated housing
In some cases, the sensor is mounted on an insulated housing that cannot or should not be
grounded. For this type of installation, we recommend that you use a sensor with a ground-
isolated case. Many of the 9000 Series sensors have ground-isolated cases. Note that the
9700 does not have isolated case. The 9700B and 9150HT are base isolated, not case
isolated. Contact Rockwell Automation Integration Condition Monitoring Technical
Support for more information on the Entek sensors.
Sensor
Screw Type
Hole Depth
Torque
9100 Series
1/4-28 stud
3/8 inch
26 inch-pounds
9200 Series
1/4-28 captive screw
3/8 inch
30 inch-pounds
9300 Series
1/4-28 stud
3/8 inch
26 inch-pounds
9400 Series
1/4-28 captive screw
3/8 inch
30 inch-pounds
9500 Series
1/4-28 stud
3/8 inch
26 inch-pounds
9600 Series
3/8-16 stud
1/2 inch
60 inch-pounds
9700A
5-40 stud
3/8 inch
12 inch-pounds
9700B
10-32 stud
3/8 inch
20 inch-pound