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REG 21

REG 21

Differential pressure transmitter in control panel housing with two limit contacts Special features Accurate measurement of differential pressure with automatic zero-point calibration and high overload protection Switching outputs can be used as 2-point regulator (pressure switch), for activating / deactivating a final control element (e.g. pump), with relay hysteresis Switching… more info
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Description

Differential pressure transmitter in control panel housing with two limit contacts

Special features

  • Accurate measurement of differential pressure with automatic zero-point calibration and high overload protection
  • Switching outputs can be used as 2-point regulator (pressure switch), for activating / deactivating a final control element (e.g. pump), with relay hysteresis
  • Switching outputs can be used as a 3-point regulatorĀ  (e.g. ON 1 – OFF – ON 2) for activating / deactivating two final control elements, (e.g. air intake / outflow fans), with relay hysteresis
  • Asymmetry also possible, e.g. 10 .. 40 mbar
  • High level of accuracy and long-term stability
  • Very little hysteresis; largely independent of temperature
  • 4 1/2 digit LED display
  • Output signal 0 .. 10 V, Ā± 5 V or 0/4 .. 20 mA
  • Selectable attenuation of the output signal up to 10 s
  • Choice of transistor or relay outputs as limit contacts
  • Can be calibrated

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).

Files & Datasheets