A receiver pressure gage operates on the 3 to 15 psig pneumatic signal from a pneumatic transmitter. It provides a local indication of the transmitter’s…
Category: Instrumentation
Pneumatic pressure transmitters transmit pressure signals to remote pneumatic receivers. Both blind and indicating transmitters are available. Blind transmitters are preferred because they use force-balance…
The electronic pressure transmitter is used to transmit a signal to a remote electronic receiver. The receiver may be a controller in a remote building,…
The field pneumatic pressure controller (pressure controller) compares the measured process pressure to a setpoint and sends an output signal to a final control element…
Field pressure recorders should have weatherproof cases of fiberglass-reinforced plastic or aluminum. Colored epoxy or baked vinyl is used to provide a textured finish. If…
Pressure test points consisting of a process connection with a plugged process quality root valve should be provided on process equipment and piping at the…
Instrument air pressure gages are usually installed in the following locations: • Each instrument air header (manifold) • Each instrument air supply regulator outlet (if…
Receiver gages should have 4½-inch diameter dials, bronze Bourdon tubes and stems, and ¼-inch NPT process connections. Local instrument air pressure gages on control valves,…
The cases of liquid-filled gages are filled with a viscous lubricating fluid. Such gages maintain their accuracy much longer than conventional gages. They should be…
It is recommended that locally mounted pressure gages be installed at the following locations to monitor the performance of equipment and pressure instruments: • Pump…