When mounting and installing a Differential Pressure Sensor it's recommend to consider the following guidelines.
The device must be mounted vertically; pressure ports pointing down. If the pressure ports point upward, condensation can collect inside the sensor causing damage to the device.
It's recommended to only use the supplied flexible silicone tubes.
Ensure the tubing is free of crimps or obstructions that may inhibit airflow to the pressure ports.
Ensure the tubing is clean and do not allow material to fall into the pressure ports, as contamination could damage the sensors.
Arrange the tubing to minimize stress on the connections to the pressure ports.
Tubing can be cut to length to support application use.
If the tubing used is longer than the supplied 6 ft. (1.82 m) tubing, reading accuracy may be affected due to reduced air flow within the tubing. A general rule is that for each additional 2 ft. (.61 m) of tubing, a 1% of error is introduced into the differential pressure reading. For applications that are only interested in a positive or negative pressure indication, the overall accuracy of the reading may not be an issue. For application use requiring tubing lengths that exceed 6 ft. (1.82 m), please contact your Primex support representative to calculate the extended tubing error rate.