Answer / sureshkannah.r

Diff.pr.gaue compared with magnehelic gauge or manometer
used "T" pneumatic fitting to connect the "+" end (both
test gauge and master gauge)high pressure side and low
pressure side respect with atomsphare.And fine AFR used to
regulate the air pressure in + side and compared the botth
gauge.

Answer / selva

the defferential presser transmitter give to 24v dc supply.
then high side give presser then calculate range.

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