11 - 13 October 2016 // Nuremberg

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Zoom product LOGO_Differential pressure transmitter 984M

Differential pressure transmitter 984M

LOGO_Differential pressure transmitter 984M

Differential pressure transmitter 984M

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General description
The differential pressure transmitters of the 984M series are used to measure differential pressure, overpressure and vacuum. They provide 2 pressure ranges and 2 output signals, which are selectable using a jumper.

Monitoring of gaseous, non-aggressive media. Possible usage areas are:
  • Building automation, air conditioning systems and clean room monitoring
  • Valve and flap control
  • Filter, ventilator and blower monitoring
  • Control of air flows
Configurable pressure range
For 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 time
The 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
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 selection
The 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.

Easy offset calibration
The output signal can be calibrated to zero by pressing the M key (pressure transmitter must be depressurised). Switching output (not available with 2-wire version) As well as an analogue output signal, the differential pressure
transmitter contains an adjustable transistor switching output with a maximum switching capacity of 35 VDC/100 mA.

Measuring method
Piezoresistive pressure transducer

Mounting position
Can be mounted in any position. The self-compensating piezoresistive pressure transducer eliminates any possible mounting error.

Differential pressure switch 930.8x Climair®

LOGO_Differenzdruckwächter 930.8x Climair®

Pressure switch 901

LOGO_Druckwächter 901 fest eingestellt

Pressure switch 901 Prescal®

LOGO_Druckwächter 901 Prescal®

Self-zeroing differential pressure transmitters 984A and 985A

LOGO_Differenzdruck-Messumformer 984A und 985A  mit automatischem Nullpunktabgleich

Differential pressure transmitter 984M is assigned to following product groups:

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