1) When designing and installing, the pressure tapping hole at the bottom of the oil tank should be lowered as much as possible to eliminate errors caused by temperature changes, and temperature compensation should be introduced if necessary.
2) In the case where the horizontal cross-section of the oil tank body is uneven (small above and large below), compensation measures should be considered. Use WP-H80 series liquid level capacity controller for the secondary meter.
3) To achieve a certain level of accuracy, if a breathing valve is installed on the top of the oil tank, a differential pressure transmitter must be used instead of a pressure transmitter. For open oil tanks or when precision requirements are not high, pressure transmitters can be directly used for easy installation.
4) Smart meters should be used as much as possible for secondary meters, which can easily change the range and achieve temperature compensation.
Differential pressure transmitter is a type of differential pressure transmitter used to measure the differential pressure of liquid, gas or steam levels, and then convert the differential pressure signal into a 4-20mA DC signal output. Then display the differential pressure value through the display instrument.