Air Differential Pressure Transmitters 984M-series

Description

The air differential pressure transmitters of the 984M series are used for measuring differential pressure, positive pressure and vacuum.

Air differential pressure transmitter 984M can be selected between two adjoining pressure ranges in same unit.

The air differential pressure transmitter 984M have selectable output via jumper, 0-10 Vdc or 4-20 mA output, 3-wire.

Air differential pressure transmitter 984M is also available with 4-20 mA output, 2-wire.


Features

• Selectable output via jumper
0-10 Vdc or 4-20 mA output, 3-wire
with power supply 24 Vac/dc

• 4-20 mA output, 2-wire
with power supply 24 Vdc

• LED display available on the 3-wire version

• Standard pressure ranges
0-100 Pa,
0-250 Pa,
0-500 Pa,
0-1000 Pa,
0-2.5 kPa,
0-5 kPa,
0-10 kPa,
0-25 kPa,
0-50 kPa,
0-100 kPa and
0-250 kPa
There is two different pressure ranges in same 984M unit.

• Customized pressure ranges on request:
-50 Pa to +50 Pa,
-100 Pa to +100 Pa,
-500 Pa to +500 Pa,
0 to -50 kPa
etc.

• 2 adjoining pressure ranges in one unit, pressure ranges selectable via jumper

• Response time 100 ms and 1 s, selectable via jumper

• Micro controller

• Auto zero

• Over, differential pressure and vaccum

• IP54 protection


Duct Fixing Kit

Duct Fixing Kit included in the air differential pressure transmitters 984M.

Duct Fixing Kit includes:
2 plastic tubes with integrated mounting plate,
2 metres PVC hose and
4 screws


Air differential pressure transmitter 984M.5x3104
Power Supply 24 Vac/dc,
Selectable output 0-10 Vdc or 4-20 mA,
3-wire,
With Switching output,
No display:

984M.523104 with selectable pressure ranges 0 to 100 Pa or 0 to 250 Pa

984M.533104 with selectable pressure ranges 0 to 250 Pa or 0 to 500 Pa

984M.543104 with selectable pressure ranges 0 to 500 Pa or 0 to 1.000 Pa

984M.553104 with selectable pressure ranges 0 to 1 kPa or 0 to 2.5 kPa

984M.573104 with selectable pressure ranges 0 to 5 kPa or 0 to 10 kPa

984M.593104 with selectable pressure ranges 0 to 25 kPa or 0 to 50 kPa

984M.5B3104 with selectable pressure ranges 0 to 100 kPa or 0 to 250 kPa


Air differential pressure transmitter 984M.5x3114
Power Supply 24 Vac/dc,
Selectable output 0-10 Vdc or 4-20 mA,
3-wire,
With Switching output,
With display:

984M.523114 with selectable pressure ranges 0 to 100 Pa or 0 to 250 Pa

984M.533114 with selectable pressure ranges 0 to 250 Pa or 0 to 500 Pa

984M.543114 with selectable pressure ranges 0 to 500 Pa or 0 to 1.000 Pa

984M.553114 with selectable pressure ranges 0 to 1 kPa or 0 to 2.5 kPa

984M.573114 with selectable pressure ranges 0 to 5 kPa or 0 to 10 kPa

984M.593114 with selectable pressure ranges 0 to 25 kPa or 0 to 50 kPa

984M.5B3114 with selectable pressure ranges 0 to 100 kPa or 0 to 250 kPa


Air differential pressure transmitter 984M.5x3204
Power Supply 24 Vdc,
Output 4-20 mA,
2-wire,
No Switching output,
No display:

984M.523204 with selectable pressure ranges 0 to 100 Pa or 0 to 250 Pa

984M.533204 with selectable pressure ranges 0 to 250 Pa or 0 to 500 Pa

984M.543204 with selectable pressure ranges 0 to 500 Pa or 0 to 1.000 Pa

984M.553204 with selectable pressure ranges 0 to 1 kPa or 0 to 2.5 kPa

984M.573204 with selectable pressure ranges 0 to 5 kPa or 0 to 10 kPa

984M.593204 with selectable pressure ranges 0 to 25 kPa or 0 to 50 kPa

984M.5B3204 with selectable pressure ranges 0 to 100 kPa or 0 to 250 kPa


Selection of output signal

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.

Selection of pressure range

To adapt best for the application the transmitter can be selected between two adjoining pressure ranges. Factory setting is for the most sensitve range, by opening of a jumpered bridge the less sensitive range is activated.

Selection of response time

The response time of the output signal can be selected by a jumpered bridge. Factory setting is for a slow response time (1 s), which dampens short pressure peaks. To work with a fast response time (100ms) this bridge needs to be replaced.

Easy offset calibration

The output signal can be calibrated to zero by pressing the M key (pressure transmitter must be depressurised).

Switching output (only for the 3-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

They can be mounted in any position. Due to the selfcompensating piezoresistive pressure transducer any possible mounting error is eliminated.


Download datasheet

Air Differential Pressure Transmitters 984M-series.pdf


Download CE declaration of conformity

CE declaration of conformity Air Differential Pressure Transmitters,
984M-series.pdf


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