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Duct transducer for absolute humidity and enthalpy

Duct transducer for absolute humidity and enthalpy
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Duct transducer for absolute humidity and enthalpy - 1

34.036/1 Sauter Components EGE: Duct transducer for absolute humidity and enthalpy How energy efficiency is improved Accurate recording of air humidity for energy-efficient control of HVAC systems and monitoring energy consumption. Areas of application Measurement of absolute humidity and enthalpy in air ducting. Features • Measurement is effected using fast, capacitive sensor • Active measured value acquisition • Insensitive to flow speeds and normal contamination • EGE 112 offers temperature measurement using an Ni1000 temperature detector Technical description • Housing lid made of yellow thermoplastic • 30 mm ø sensor tube made of black, glass-fibre-reinforced thermoplastic • Screw terminals for wires up to 1,5 mm² • Immersion depth: 40 to 156 mm. • Linear output signal 0(2)...10 V or 0(4)...20 mA • Fixing bracket supplied with seal for duct and wall mounting Operation Humidity measurement The absolute humidity and the enthalpy are registered by a fast-acting, capacitive sensor and converted by the electronics unit into the linearised standard signal 0(2)...10 V and 0(4)...20 mA. Temperature measurement The EGE 112 has an Ni1000 temperature sensor; the temperature (–20...50 °C) is converted into the standard signal 0(2)...10 V and 0(4)...20 mA. Engineering and fitting notes In installations which may be susceptible to dew formation, the transducer should not be fitted with the sensor tube facing upwards. The curve's good linearity and constance make it unnecessary to calibrate the measuring span. For test measurements, the zero point can be varied by ± 10%rh. The measurement system requires practically no maintenance and is unaffected by either flow speed or contamination. Calibrated at the factory. Hx, h Y03126 Hx, h T Y03127 Type Humidity range g/kg Enthalpy range kJ/kg Temperature range °C Voltage Weight kg EGE 110 F002 0...20 0...100 – 24 V~ 0,46 EGE 112 F002 0...20 0...100 –20...50 24 V~ 0,44 Power supply 24 V~ ± 20%, 50...60 Hz Permissible ambient temp. –20...70 °C at meter tube –20...80 °C Power consumption approx..1,5 VA Permissible ambient humidity 5...100 %rh Output signal 1) 0(2)...10 V, Load > 500 Ù Degree of protection (head) IP 40 (EN 60529) with Pg 11 screw fitting IP 54 Temp. influence x ± 0,02 g/kg per K Protection class III (IEC 60730) Temp. influence h ± 0,05 kJ/kg per K Time constant in air (3 m/s) 55 s Wiring diagram EGE 110 A03129 EGE 112 A02199 Max. flow speed 10 m/s Dimension drawing M02200 Fitting instructions MV 505330 Accessories 0370560 011 Cable screw fitting Pg 11, of plastic, for cable Ø 9...11 mm 0369585 001 Housing cover, complete, pure white 1) Switches over automatically to 0...20 mA (or 4...20 mA) when the load is < 500 Ù. 10 V- Output signal 20 mA 0 2 0 4 0 Absolute humidity 20 g/kg 0 Enthalpy 100 kJ/kg 10 V- Output signal 20 mA 0 2 0 4 -20 Temperature 50 °C B03224 7134036003 04

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Duct transducer for absolute humidity and enthalpy - 2

34.036/2 EGE Sauter Components Further technical information Absolute humidity/enthalpy x h Temperature Accuracy at Accuracy at 20 °C ± 0,8 K 55 %rh, 23 °C ± 1 g/kg ± 3,5 kJ/kg Output voltage max. 13 V Hysteresis (average) < 0,4 g/kg < 2 kJ/kg Reproducibility at Ä 30 %rh, 23 °C < ± 0,3 g/kg < ± 1,5 kJ/kg Output voltage max. 13 V Complies with:- EMC directive 89/336/EEC EN 61000-6-1/ EN 61000-6-3 Dimension drawing Wiring diagram EGE 110 EGE 112 140 41,7 73 Ø19 54 40...156 54 75 26 42 14 10 20 Ø30 EGQ 110 Ø5,5 Ø6,1 M02200b 10 64 3 Hx, h 2 1 Û 24 V~ A03129d Û 4 Hx h Auto U/I 0/2...10 V...

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