Differential pressure transmitter REG 21

Pressure measurement and regulation in a device


This differential pressure transmitter in a control panel housing is suitable for use as a 2- or 3-point controller thanks to its two integrated limit contacts. These permit the realisation, e.g. of ventilation controls, at low cost and without the need for additional electronics. Both the threshold values and the hysteresis for the controller are easy to set via the front keyboard. The display provides readings of measurement values directly on-site in Pa, kPa, inchH2O or mmH2O as well as information about the output states of the limit contacts. An adjustable time constant (up to 10 s) allows the instrument to generate an attenuated output signal, even under fluctuating pressure conditions. Cyclical self-calibration of the zero point ensures a high level of measurement accuracy. The instrument is available with an ISO factory calibration or DAkkS calibration certificate (optional).

Measurement and control instruments
  • pressure sensor
  • pressure transmitter
  • pressure regulation

Product features

Measurement ranges 50 Pa .. 100 kPa
Margin of error ± 0.5 % of max. value or ± 1 % of max. value(0.3 Pa margin of error for the reference)
Medium Air, all non-aggressive gases
Housing Panel housing, protection class IP 50 (installed)
Output 0 .. 10 V, ± 5 V or 0/4 .. 20 mA
Power supply 24 VDC, 24 VAC, 115 VAC, 230 VAC

Additional product literature

PDF documents

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