Differential pressure transmitter 985 Series
vacuumpiezoresistive4-20 mA

differential pressure transmitter
differential pressure transmitter
differential pressure transmitter
differential pressure transmitter
differential pressure transmitter
differential pressure transmitter
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Pressure type
differential, vacuum
4-20 mA, Modbus
Protection level
IP65, EMC, IP66
for HVAC systems, for building automation, for pharmaceutical applications, for OEM, for the food industry
Other characteristics
temperature-compensated, two-wire, OEM, CE, with display, with integrated amplifier, with selectable measurement range, low pressure, fast response time, with amplified output, custom, with volumetric flow measurement, with LED display, RoHS
Process temperature

Min.: -20 °C (-4 °F)

Max.: 70 °C (158 °F)

Pressure range

Min.: -100 Pa (-0.01 psi)

Max.: 100,000 Pa (14.5 psi)


Differential Pressure Transmitter 985A with Autozero function and 985Q with eight pressure ranges are as variations avaiable. General description The differential pressure transmitters of the 985 series are used to measure differential pressure, overpressure and vacuum. They provide up to 8 pressure ranges and 2 output signals, which are easily selectable by jumper or rotary selector switch. Applications Monitoring of gaseous, non-combustible and non-aggressive media. Possible usage areas are: •Building automation and air conditioning systems •Overpressure measurement in clean rooms and laboratories •Measurement of constant pressure in VAV applications •Dynamic filter and ventilator monitoring Configurable pressure range For an optimum adaptation to the application, the transmitter can be switched between various pressure ranges. The factory setting is the most sensitive range. For the series 985M and 985A the less sensitive second range will be selected by simply removing a jumper. For the series 985Q the available eight ranges can be selected by a rotary selector switch.
*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.