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Microphone, Sensor, Humidity sensor, Secondary switchgear, Indicator
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Technical data
Humidity measurement
Measurement principle
Psychrometric gas humidity measurement in line with the impact jet method
Transducer
PT 100/ 4-conductor in accordance with DIN IEC 751
Computational accuracy
< 0.01%
Computing time
Approx. 2s
Settling time
tgo = 90s (for sudden change in SH from 10 to 190 g/kg)
Air/gas throughput
Max. 17,5 Nl/min
Water intake
Max. 25 ml/h (tube pump)
Water reserve
2l (enough for approx. 3 days)
Compressed air intake
2...5 bar (max. air consumption 2000Nl/h)
Measured variable inputs
Measured variable
Measurement range
Resolution
Accuracy
Type
Dry temperature TT
0...140 °C
< 0.5% of the
Primary
Wet temperature HT
0...140 °C
0.1 °C
measurement
Temperature T1
0...200 °C
range
Absolute pressure SP
500...1500 hPa
1 hPa
< 1%
Dew-point temperature DT
0...100 °C
0.1 °C
Calculated
Volumetric content H2O Vol.%
0...100 %
0.1 %
Absolute humidity MH
10...1000 g/kg
1 g/kg
Specific humidity SH
10...1000 g/kg
1 g/kg
Enthalpy h
10...1000 kJ/kg
1 kJ/kg
Current vapour pressure VP
10...1000 hPa
1 hPa
Saturation deficit DVP
0...1000 hPa
1 hPa
Outputs
Signal output
Analogue output
2 electrically isolated output channels, can be assigned to each of the
measurement ranges, spread, error behaviour programmable
Output signal
0...20 mA or 4...20 mA (programmable), linear
Permissible load
< 500 Q
Accuracy
< 0.2% of the associated measured value
Inputs
External water detector
24 V d.c., NPN
T1 extern
PT 100/ 4-conductor in accordance with DIN IEC 751
Data interface
Field bus interface
Profibus DB
Electrical data
Auxiliary power
Measuring unit: 90...264 V a.c., 47...63 Hz, approx. 30 VA
Heating hose: 230 V or 115 V a.c.; approx. 100 VA/m
Relays
Warn relay
Display of warnings
Load: 1 A/24 V d.c., at least 10 mA
ERROR-relay
Display of failures
Load: 1 A/24 V d.c., at least 10 mA
Ambient conditions
Permitted working temperature
+5...+50°C
Permitted storage temperature
-20...+70°C (without water)
Climate category
KWF in accordance with DIN 40040
Reference conditions
23°C +2°C / 230V ± 2%
Mechanical data
Enclosure
Stainless steel enclosure; protection rating IP64 in accordance with DIN 40050
Dimensions
450x410x150 mm (without mount)
Assembly drill holes
347x330 mm, 4x07x13mm (M6)
Weight
Approx. 12.5 kg
Connections
Electrical connection
Screw terminals 0.5-1.5 mm2; cable feed via M 16x1.5 cable gland
Compressed air connection
G 1/4"
Heating tube connection
G 3/8" (IP54) Universal conical nipple DKR DIN3863
HYGROPHIL H Type 4230-10
DB 030329 (13.04.2006)
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