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General
Parameters: Differential pressure, temperature and relative humidity
Housing material: ABS
IP protection: IP40
Mounting position: Wall mount
Dimensions: 129 × 72 × 45 mm
Weight: 243 g
Display: Coloured TFT display
Electrical connections: Screw terminals M16 cable gland, socket
Power supply: 18…48 VDC / 16…36 VAC (galvanically isolated)
Current consumption: <300 mA @ 24 VDC
Range of application / Storage conditions: –5…60°C / 0…100%rh, non-condensing
Firmware upgrade: Via HygroSoft software
Service interface: UART service interface (inside device)
CE / EMC compatibility: EMC-Directive 2014/30/EU
Fire protection class: Corresponds to UL94-HB
Differential pressure measurement
Measurement principle:
Thermal mass flow measurement
Membran sensor
Measurement ranges:
Membran: ±25 Pa / ±50Pa / ±100 Pa / ±250 Pa / ±500 Pa
Medium: Air and non-aggressive gases
Accuracy at 23°C ±3 K: ±1.0 %FSS
Long-term stability:
Membran: ±0.25 % FSS (typ.) per year @ ±250 and ±500 Pa measurement range
±0.3125 % FSS (typ.) per year @ ±100 Pa measurement range
±0.625 % FSS (typ.) per year @ ±50 Pa measurement range
±1.25 % FSS (typ.) per year @ ±25 Pa measurement range
Measurement interval: 1 s
Pressure resistance:
Membran: 0.7 bar
Leak rate:
Thermal: <10.8 ml/h
Membran: 0
Pressure connections: Tubing connector Ø 4 mm × 10 mm
Measurement of temperature and relative humidity (type-dependent)
Probe connections:
Temperature: 4-pin Binder for 4-wire PT100
Humidity: Rotronic E2 for Rotronic HC2A-S probe
Accuracy: probe dependent
Outputs
Analog outputs: Min. 1, max. 3, freely configurable
Analog output type:
0 to 1 V
0 to 5 V
0 to 10 V
0 to 20 mA
4 to 20 mA
Relais / Switch output: 1 relay potential-free change-over switch (NC - COM - NO)
Accuracy analog output @ 23°C: Voltage output: ±1 mV // Current output: ±20 µA
Permissible load: >1 kΩ (voltage output) / <500 Ω (current output)
