Multi-funtional duct sensor
For humidity, temperature, pressure, differential pressure and volume flow for monitoring and controlling heating, ventilation and air-conditioning systemsPREMASGARD® 814x-Modbus
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Calibratable outdoor humidity and temperature sensor HYGRASGARD® AFTF - 20 (± 1,8 %) with
plastic sinter filter (optional metal sinter filter), housing made from impact-resistant plastic,
optionally with/ without display, with cable gland or bushing for M12 connector according to
DIN EN 61076-2-101.
Calibratable outdoor humidity and temperature sensor HYGRASGARD® AFTF - 20-VA (± 1.8 %) with metal sinter filter, rugged housing, stainless steel V4A, optionally with/ without display, with cable fitting or bushing for M12 connector according to DIN EN 61076-2-101.
It measures the relative humidity and the temperature of the air and converts the measurand into a standard signal of 4...20 mA. It has four switchable temperature ranges and is applied in non-aggressive dust-free atmospheres in refrigeration, air conditioning, ventilation and clean room technology. Relative humidity (in % r. H.) is the quotient of water vapour partial pressure and the saturation vapour pressure at the respective gas temperature. These measuring transducers are designed for exact detection of humidity. A digital long-term stable sensor is used as measuring element for humidity measurement. Fine adjustment by the user is possible.
15...36 V DC
depending on working resistance, residual ripple stabilised ± 0.3 V
|Power consumption||< 1.1 VA/ 24 V DC|
|Working resistance||Ra (ohm) = (Ub -14 V)/ 0.02 A for I variant|
digital humidity sensor
with integrated temperature sensor,
low hysteresis, high long-term stability
|Measuring range, humidity||
0...100 % r. H.
(output corresponding to 4...20 mA)
|Deviation of humidity||
typical ± 1.8 % r. H. (10…90 % r. H. ); at + 25 °C, otherwise ± 2,0 % r. H.
|Output, humidity||4...20 mA|
|Measuring range, temperature||
–35...+35 °C; –35...+75 °C; 0...+50 °C; 0...+80 °C
(output corresponding to 4...20 mA)
|Temperature deviation||typically ± 0.2 K at +25 °C|
|Output, temperature||4...20 mA|
plastic sinter filter, Ø 16 mm, L = 35 mm, exchangeable
(optional metal sinter filter, Ø 16 mm, L = 32 mm)
|Ambient temperature||storage –35...+85 °C; operation – 30...+80 °C, non-precipitating|
|Process connection||by screws|
stainless steel V2A (1.4301), Ø 16 mm
NL = 137 mm
2-, 3- or 4-wire connection
0.14 -1.5 mm ² via terminal screws on circuit board
bushing for M12 connector
according to DIN EN 61076-2-101
material polyamide, 30 % glass-globe reinforced,
with quick-locking screws
(slotted/ Phillips head - combination),
colour traffic white (similar to RAL 9016)
|Housing dimensions||126 x 90 x 50 mm (Tyr 2)|
|Long-term stability||± 1 %/ year|
|Permissible air humidity||< 95 % r. H., non-precipitating air|
|Protection class||III (according to EN 60 730)|
|Protection type||IP 65 (according to EN 60 529)|
according to EMC directive 2014/ 30/ EU,
according to EN 61326-1, according to EN 61326-2-3
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