Instrument > Pressure
The differential pressure transmitters of the 984M series are used to measure differential pressure, overpressure and vacuum.
ApplicationsMonitoring of gaseous, non-aggressive media. Possible usage areas are:
Configurable pressure rangeFor optimum adaptation to the pressure application, the transmitter can be switched between two pressure ranges. The factory setting is the sensitive range 1, which is selected by fitting a jumper. Removing the jumper activates the non-sensitive range 2.
Configurable response timeThe response time of the output signal can be configured using a jumper.
If the jumper is in place the response time is slow(factory setting), which is useful for suppressing brief pressure peaks.
If the application requires a fast response time the jumper must be removed.
Volume flow measurement (optional)The shape of the output signal can be switched from linear to square root using a jumper in order to measure the volume flow via a differential pressure.
Output signal selectionThe output signal of the 3-wire version is configurable.
The factory setting is for a 0 ...10 Volt output signal, but this can be changed to 4 ... 20 mA by removing the jumper.
The 2-wire version is only available with a 4 ... 20 mA output signal.