Thermo Scientific AquaSensors™ DataStick™ Measurement System User Guide
16
3.2.2
Union Mounting
Union mount hardware makes it easy to remove and insert the sensor for applications where calibration and/or cleaning are frequent.
Union Mount Advantages:
•
Optimal positioning of sensing surface.
•
Trouble-free installation.
•
Quick disconnect.
•
No cable twisting during installation.
•
Easy maintenance.
Detailed Union Mount Installation Instructions
1.
Wiring:
a.
Apply Teflon
®
tape to the rear sensor body threads and pass the cable through the adapter. Thread the adapter onto the sensor
clockwise until it is secure.
b.
Pass the union collar over the cable and onto the adapter with the threads facing the front of the sensor.
c.
Route the cable either through conduit or on a cable tray.
d.
Insert the sensor cable into the junction box through a watertight cord grip.
e.
Connect the sensor wires into the terminal block as specified on the cable label.
2.
Mount:
a.
Assemble the lower portion of the mounting hardware by threading the pipe nipple into the threaded flange and the tee.
Apply Teflon
®
tape to the threads.
b.
Inspect the O-ring on the union-mounting threaded flange for imperfections or particles of dirt that may prevent the O-ring seal
from seating properly.
c.
Carefully insert the sensor into the Thermo Scientific AquaSensors union-mounting tee. Turning the retaining collar clockwise
and hand tighten until snug. Be sure the pipe remains full when the sensor is installed.
