Pressure Sensors Frequently Asked Questions
Question
How do I adjust the PSD series sensors?
Answer
The SET and RESET adjustments (Rings) are mechanically interlocked to prevent setting less than the minimum offset required by the sensor. You cannot use the same pressure setting for the SET and RESET. There must be some hysteresis (offset) to the settings.All the directions assume you are looking at the cable end of the sensor.
- Unlock the sensor adjustments (top most ring). The unlock symbol will line up with center arrow when unlocked.
- Rotate the LOCK ring clockwise until it stops.
- Adjust the SET point (2nd ring from top) to it's lowest setting.
- Rotate the SET ring counter-clockwise until it stops.
- The RESET ring will start moving at some point to maintain the mimimum offset.
- Adjust the RESET point (3rd ring from top) to the desired reset point. This is the pressure at which the sensor will turn off after being turned on. This has to be offset from the SET to prevent chattering/rapid cycling.
- Rotate the RESET ring clockwise to the desired reset point. - The SET will move also to maintain the offset.
- Check the setting of the SET ring. You cannot adjust the SET point lower than the reset so the reset may move.
- If this needs to be adjusted, the RESET will be affected to maintain the offset.
FAQ Subcategory: None
This item was last updated on 2021-02-10
Document ID: 1187
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