Series DGC.370 diaphragm type differential pressure liquid level gauge is mainly used in cryogenic liquid containers （vessel or tank）liquid level height measurement, such as liquid oxygen, liquid nitrogen, liquid argon, liquid carbon dioxide and liquefied natural gas, and can also be used for gas or liquid the instantaneous flow of tests.

High (Liquid side) and Low (Gas side) pressures are separated by a sensor assembly consisting of a magnet, diaphragm and a range spring. The difference in pressure causes the sensor assembly to move in proportion to the change against a range spring. A rotary magnet, located in a separate body compartment and isolated from the acting pressures, is rotated by magnetic coupling as per the linear movement of the sensor assembly. A pointer attached to the rotary magnet indicates differential pressure on the dial.

 

The instrument is never to be used in an area where a magnetic field is present. It may show wrong readings.

Specification

Diff. pressure range	0…750 to 0…50000 ㎜H₂O
Accuracy	± 2.0%FS
Static pressure	75 bar / 1000 psi
Process connection	1/4 NPT(F)