|
HYGRASGARD® ESFTF-UThe humidity transmitters of the HYGRASGARD® ESFF / ESFTF series are used for measuring relative humidity and air temperature pressurised systems, and convert these measured values to standard signals of 4...20 mA or 0-10 V. Process connection is G ½" straight external pipe thread, with a terminal box housing made of impact resistant plastic, and housing cover with quick-locking screws. The screw-in humidity measuring transducers have been designed for operation in pollutant-free, non-precipitating air. They are mounted vertically with the sensor pointing down.
![]()
收藏
产品编号 1201-2111
Voltage supply 24 V AC/DC (± 10 %) for U -variant; 15...36 V DC for I -variant, load-dependent Power consumption 1.1 VA for U variant;1.5 W for I variant Working resistance RLmax = (UB - 15 V) / 0.02 A for I -variant, see load diagram Data points relative humidity [% RH], absolute humidity [g/m3], mixing ratio [g/kg], dew point [°C], temperature [°C] Measuring range, humidity 0...100 % RH (default) Temperature deviation typically ± 0.5 K at +25 °C Deviation of humidity typically ± 3.0 % (30...70 % RH) at +25 °C, otherwise ± 3.5 % (deviation of the alternative parameters result from the deviations of humidity and temperature). Measuring range, temperature multi-range switching with 4 switchable measuring ranges 0...+50 °C (default); –20...+80 °C; –30...+70 °C; 0...+100 °C Warm up time < 5 min Response time < 60 s Output 0 - 10 V for U variant; 4...20 mA for I variant Sensor protection Metal sintered filter, Ø 20 mm, replaceable, with condensation protection due to heating function Ambient temperature storage –20...+ 50 °C operation 0...+ 50 °C Process connection screwed socket with G ½ " straight pipe thread, immersion depth 25 mm Protective tube made of metal, Ø 20 mm, NL = 115 mm, pressure resistance pmax = 10 bar Sensor digital humidity sensor with integrated temperature sensor, low hysteresis, high long-term stability Electrical connection 3- or 4-wire connection 0.14 - 1.5 mm² via plug terminals Dimensions 72 x 64 x 37,8 mm (Tyr 1) Installation vertical mounting, humidity sensor at the bottom Long-term stability ± 1 % per year Humidity < 99% RH, pollutant-free, non-precipitating air Housing plastic, UV-stabilised, material polyamide, 30 % glass-globe-reinforced colour traffic white (similar to RAL 9016) ALTF 02 with snap-on lid, Protection class III (according to EN 60 730) Standards Protection type IP 65 (according to EN 60 529) in the built-in state, Housing tested, TÜV SÜD, Report No. 713139052 (Tyr 1) Function Sensorschutzfunktion bei Hochfeuchte (95...99 % RH) Übersteigt die relative Feuchte den werksseitig vorgegebenen Schwellwert von 95 % RH, wird eine zeitlich begrenzte Heizfunktion aktiviert und der Sensor vor Kondensation geschützt. In this operating state, the output signals remain at the last measured values before the heating function was activated. |