Installation Instructions

Installation Instructions
Document No. 129-520
March 20, 2007
Liquid Immersion Temperature Sensors
Component Kit
Item Number 129-520, Rev. AA Page 1 of 2
Product Description
The Component Kit (well not included) is designed
for installation into a 2-1/2, 4, or 6-inch well. The
sensor in the kit provides a temperature input to a
controller.
Contents
Description
Quantity
Pulling elbow
1
Sensor
1
Sensor support tubes
3
Spring
1
Spring retaining washer
1
Wire nuts
2
Thermal compound
2
Product Numbers
536-777-RK NTC 100K  NTC
544-577-RK Pt 1000 , (375)
Required Tools
• Medium flat-blade screwdriver
• 1-1/4 inch open end wrench or equivalent
adjustable wrench
• Pliers or channel-locks
• Wire stripper
Expected Installation Time
28 minutes
Prerequisites
• Read these instructions before beginning.
• The immersion well(s) must be previously
installed and field wiring pulled to a termination
point near the well.
Installation
Installing a sensor assembly into a well
1. Disconnect one of the leads of the field wiring
from the termination board or block at the
controller.
2. Uncoil the sensor leads and remove the plug
from the well.
3. Select the appropriate length sensor support
tube for the well being serviced.
4. Assemble the spring and spring retaining washer
onto the sensor support tube and pass the lead
wires of the sensor through the tube. See
Figure 1.
Figure 1. Sensor Assembly.
5. Coat the sensor with thermal compound and
insert the assembly into the well.
6. Remove the cover and gasket from the pulling
elbow.
7. Wrap the treads of the pulling elbow with Teflon
®
tape or equivalent.
8. Thread the sensor leads through the male end of
the pulling elbow and out through the cover
openning.
9. Screw the pulling elbow into the well.
10. Install wiring conduit, flex or rigid, between the
field utility box and the pulling elbow.