HM1500LF

HM1500LF Relative Humidity Module Small size product Product free from Lead, Cr(6+), Cd and Hg Humidity calibrated within +/-2% 55%RH Typical 1 to 3.6 Volt DC output for 0 to 100% RH at 5Vdc supply Ratiometric to voltage supply from 4.75Vdc to 5Vdc Patented solid polymer structure DESCRIPTION Based on the rugged HS1101LF capacitive humidity sensor, HM1500LF is a dedicated humidity transducer designed for OEM applications where a reliable and accurate measurement is needed. Direct interface with a micro-controller is made possible with the modules linear voltage output. FEATURES APPLICATIONS Full interchangeability Industrial High reliability and long term stability Process control Not affected by water immersion Very low temperature dependence Suitable for 3 to 10 Vdc supply voltage Humidity Sensor Specific features Instantaneous de-saturation after long periods in saturation phase Fast response time Part could be washed with distilled water (1) Soldering temperature profiles available on request / contact us at humidity.application meas-spec.com PERFORMANCE SPECS MAXIMUM RATINGS Ratings Symbol Value Unit Storage Temperature Tstg -30 to 70 C Storage Humidity RHstg 0 to 100 % RH Supply Voltage (Peak) Vs 10 Vdc Humidity Operating Range RH 0 to 100 % RH Temperature Operating Range Ta -40 to 60 C HM1500LF HPC062 F www.meas-spec.com October 2012 1/5 HM1500LF Relative Humidity Module ELECTRICAL CHARACTERISTICS (Ta=23C, Vs=5Vdc +/-5%, R >1M unless otherwise stated) L Typ Max Humidity Characteristics Symbol Min Unit Humidity Measuring Range RH 0 100 %RH Relative Humidity Accuracy (10 to 95% RH) RH +/-3 +/-5 %RH Supply Voltage (regulated at 5Vdc*) Vs 5 Vdc Nominal Output 55%RH (at 5Vdc) Vout 2.42 2.48 2.54 V Current consumption Ic 1.4 2 mA Temperature Coefficient (10 to 50C) Tcc - 0.05 -0 .1 %RH/C Average Sensitivity from 33% to 75%RH Vout/RH +26 mV/%RH Sink Current Capability (R =33k) Is 150 A L Humidity Hysteresis +/-1 %RH Time Constant (at 63% of signal, static) 33% to 75%RH 10 s Warm up time (electronic) tw 150 ms Humidity resolution 0.4 %RH Output Impedance Z 70 *Maximum power supply ramp up time to Vcc should be less than 4ms. TYPICAL PERFORMANCE CURVES HUMIDITY SENSOR Measurement conditions HM1500LF is specified for accurate measurements within 10 to 95% RH. Excursion out of this range (<10% or >95% RH, including condensation) does not affect the reliability of HM1500LF characteristics. Dedicated HM15XX products are available for extreme RH conditions (as HM1520 for low dewpoints). Consult MEAS- FRANCE for further information. Modeled Signal Output RH (%) Vout (mV) RH (%) Vout (mV) 10 1325 55 2480 15 1465 60 2605 20 1600 65 2730 25 1735 70 2860 30 1860 75 2990 35 1990 80 3125 40 2110 85 3260 45 2235 90 3405 50 2360 95 3555 HM1500LF HPC062 F www.meas-spec.com October 2012 2/5