5. Use
1) To prevent differential gauge measuring set damage, operate the differential gauge along
with the 3-way or 5-way manifold all the time and check both the high and low sides
before it is installed on the manifold.
2) The differential gauge should be installed as a higher position than the pressure diffuser
during gas differential pressure measurement and lower than it during liquid differential
pressure measurement.
3) Connect the measuring tube pressure diffuser in such a way to set the upstream to the
high pressure and the downstream to the low pressure. During water level checking,
set the lower part to the high side and the upper part to the low side for the pressurizing
tank but connect the lower part to the high side and open the low side to the atmosphere
for the open tank for atmosphere.
4) In case of corrosive fluid, you must choose anticorrosive diaphragm or side diaphragm.
5) In case you choose a side diaphragm and its high side and low side are not installed at the
same point, be sure to conduct zero point adjustment after differential gauge installation.
(Zero point is adjusted by turning zero adjustment screw inside case after
removing an oil cap on the top of differential pressure gauge case. )
6) In case of operation in hot fluid, use a seal pot to keep the differential gauge incoming
fluid under the set temperature.
