Georg Fischer 2350 Temperature Sensor:
Avoid Tip Bottoming Out

The GF Signet 3-2350-1 (159 000 021) and the 3-2350-3 (159 000 920) Temperature Sensors have chemically robust PVDF bodies. However, when using a 3/4” pipe size, the sensor tips can be damaged easily from contact with the bottom of the pipe fitting. If installed properly, the sensor tip will not touch the base of the fitting. For extra clearance and protection, use a Reducing Tee and Flush Style Reducer Bushing.

Caution: Inside the sensor tip is a platinum RTD that will not function to specifications if cracked or bent.

Installation Instructions: Tools Required: 2350 Temperature Sensor, 3/4” NPT Fitting, 1-3/8” Crescent or Adjustable Wrench, PTFE Tape, PPE (as necessary).

1. Wrap PTFE Tape around the threads of the sensor body (3) times. Make sure to wrap PTFE clockwise. (Figure 1)
2. Hand tighten sensor into ¾” NPT fitting. (Figure 2)
3. Using a 1-⅜” crescent or adjustable wrench, tighten sensor approximately 11/2 additional turns. (Figure 3)
4. The score mark on the sensor is parallel with the sensor tip. Align score mark with flow direction for best protection of sensor tip. (Figure 4)
   NOTE: If score mark is not aligned, adjust with a wrench as needed.

WARNING: Do not overtighten the sensor. Doing so may damage the sensor tip by contact with bottom of the fitting.