Set up the differential pressure transmitter, HART communicator, power supply, hand pump, and multimeter according to the manufacturer's instructions.
Make sure the equalizing valve manifold is closed.
Apply to the transmitter a pressure that is equivalent to the lower range pressure.
In the transmitter's LCD, check the pressure. If necessary, adjust through the HART communicator so that the transmitter output matches the applied pressure.
Using a multimeter, read the transmitter's mA output.
Apply a pressure to the transmitter equal to an upper range pressure.
In the transmitter's LCD, check the pressure.
Using a multimeter, read the transmitter's mA output.