PSIA (absolute) sensors measure the depth plus the atmospheric pressure. This atmospheric pressure must be subtracted from the absolute pressure to give the actual pressure due to depth. For information on using the Barometric Compensation utility to perform these calculations, refer to the Barometric Compensation Utility application note. In addition, the AquiStar Compensator obtains readings …
What is the desiccant tube and what do I do with it?
The desiccant tube prevents moisture in the air from being sucked into the vent tube, which can cause erratic readings and sensor damage. Install the sensor so that the desiccant tube will not flood or lie in water. The desiccant is a bright blue color when active and dry. As moisture is absorbed the color …
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I’m getting erratic readings from my sensor.
Erratic readings can be caused by a poor connection, damaged cable, moisture in the unit, or a damaged sensor. In most cases, erratic readings are due to moisture getting into the system. First check the connection. Look for moisture between contacts or a loose or broken wire. Next, check the cable for cracking or fraying. …
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Pressure readings are oscillating over time.
If, after time, your sensor is functioning normally but your data is showing a cyclic effect in the absence of water level changes, you are probably seeing barometric changes. The amount is usually 0.5 to 1.5 feet of water. This can be caused by actual water level changes in the aquifer in response to barometric …
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My pressure readings are zero.
Continuous zero readings are usually caused by an open circuit, which may indicate a broken cable, a bad connection, or possibly a damaged sensor. Check the connector to see if a wire has become loose or if the cable has been cut. If damage is not readily apparent, contact INW/Seametrics support for evaluation and repair.