Fluke Process Instruments

Changing the Window

Sometimes extremely harsh environments can cause damage to the window.

A replacement window (E-PW) is available from the manufacturer.

To replace the sensor’s window, complete the following: 

1.   Use a very small flat-bladed screw driver (e.g., a jeweler’s screwdriver), pry out the rubberized Buna-      N 70 durometer O-ring. The O-ring is set in a groove in front of the window. 

2. Turn the sensor face down (window pointing down), and the window should fall out. 

3. Turn the sensor face up and insert the new window. (Make sure both sides of the window are clean.) 

4. Replace the O-ring. 

If you use a fine-bladed knife to remove the O-ring, be careful not to cut or sever the ring.