halstrup - walcher GmbH

These differential pressure transmitters are available in a wide range of precision classes and therefore suitable for applications in the heating, air-conditioning and ventilation industries as well as sophisticated laboratory applications. An optional display allows measurement values to be read directly on-site in Pa, kPa or mmH2O. An optional time constant (up to 5s) allows the instrument to generate an attenuated output signal, even under fluctuating pressure conditions. The instrument is available with an ISO factory calibration or DAkkS calibration certificate (optional).

Special features

• High level of accuracy
• Little zero point drift or hysteresis; largely independent of temperature
• LCD display (optional)
• Output signal: 0 .. 10 V (PU),  0/4 .. 20 mA (PI)
• Factory-adjusted attenuation of the output signal of up to 5 s possible (optional)
• Can be calibrated

Measurement ranges
50 / 100 / 250 / 500 Pa
1 / 2.5 / 5 / 10 / 20 / 50 / 100 kPa
(others available on request)

Margin of error
0.2 % of max. value, only for measurement ranges ≥ 250 Pa or
0.5 % of max. value (min. 0.3 Pa) or
1 % of max. value

Output
PU: 0 .. 10 V (RL ≥ 2 k Ω)
PI: 0/4 .. 20 mA (RL ≤ 500 Ω)

Supply voltage
24 VDC, +20 % / -15 %
24 VAC, +6 % / -15 %
115 VAC, +6 % / -15 %
230 VAC, +6 % / -15 %

Display (optional)
3 1/2 digit
4 1/2 digit