This compact differential pressure transmitter is particularly suited to filter and pressure monitoring applications in the heating, air-conditioning and ventilation industries. An optional display allows measurement values to be read directly on-site in Pa or kPa. An optional time constant (up to 4s) allows the instrument to generate an attenuated output signal, even under fluctuating pressure conditions. To reduce wiring costs, the instrument is also available in a version with two-wire technology (optional). The PS 27 can be mounted either on a wall or on top-hat rails. The instrument is available with an ISO factory calibration or DAkkS calibration certificate (optional).
Measurement ranges
50 / 100 / 200 / 500 Pa
1 / 2.5 / 5 / 10 / 20 / 50 / 100 kPa
(others available upon request)
optional:
toggles between: 100 Pa / 250 Pa / 500 Pa / 1000 Pa
toggles between: 250 Pa / 500 Pa / 1000 Pa / 2500 Pa
toggles between: 1 kPa / 2.5 kPa / 5 kPa / 10 kPa
toggles between: 10 kPa / 25 kPa / 50 kPa / 100 kPa
Margin of error
± 2 % of the set value for ≥ 100 Pa or
± 3 % of the set value for 50 Pa
(0.3 Pa margin of error for the reference)
Output
0 .. 10 V (R L ≥ 50 kΩ)
2 .. 10 V (R L ≥ 50 kΩ)
0 .. 20 mA (R L ≤ 500 Ω)
4 .. 20 mA (R L ≤ 500 Ω)
0 .. 5 V (R L ≥ 50 kΩ)
(the output signal can be configured using jumpers)
Power supply
24 VAC/DC, ± 10 % (without galvanic separation)
15 .. 32 VDC (two-wire) (only for 4 .. 20 mA Output)
Contact point (optional, not for two-wire)
1 relay (changeover contacts) max. 230 V AC, 6 A
(min. required switching capacity 300 mW)
Display (optional)
4-digit
