HPP805C031

HM1520LF – Relative Humidity Module • Tubular form for through wall mounting • Product free from Lead, Cr(6+), Cd and Hg • Calibrated, linear voltage for easy electronic interface • Typical 1 to 1.6 Volt DC output for 0 to 20% RH at 5Vdc supply • Ratiometric to voltage supply • Patented solid polymer structure DESCRIPTION Based on the rugged HS1101LF capacitive humidity sensor, HM1520LF is a dedicated humidity transducer designed for measurements at low humidity. Direct measurement of dew point or water concentration can be easily obtained in really cost effective conditions. Direct interface with a micro-controller is made possible with the module’s linear voltage output. FEATURES APPLICATIONS • Full interchangeability • Low Humidity • Not affected by water immersion • Meteorology • Controlled temperature dependency … Humidity Sensor Specific features Not affected by long period at low humidity values High resistance to chemical Fast response time PERFORMANCE SPECS MAXIMUM RATINGS Ratings Storage Temperature Storage Humidity Supply Voltage (Peak) Humidity Operating Range Temperature Operating Range Symbol Tstg RHstg Vs Value -30 to 70 0 to 100 10 Unit °C % RH Vdc RH Ta 0 to 100 -40 to 60 % RH °C Peak conditions: less than 10% of the operating time. HM1520LF HPC091_C www.meas-spec.com 1/6 October 2012 HM1520LF – Relative Humidity Module ELECTRICAL CHARACTERISTICS (Ta=23°C, Vs=5Vdc +/-5%, R L>1MΩ unless otherwise stated) Humidity Characteristics Humidity Measuring Range / Ta -40 to 60°C Relative Humidity Accuracy (1 to 20% RH) at 23°C Relative Humidity Accuracy @55% RH at 23°C Supply Voltage (regulated at 5Vdc*) Nominal Output @10%RH (Ta = 25°C) Current Consumption Temperature Coefficient (10 to 50°C and 1 to 20% RH ) Humidity Average Sensitivity from 5% to 10%RH Sink Current Capability (RL=33kΩ) Humidity Hysteresis Time Constant (at 63% of signal, static) 5% to 10%RH Warm Up Time (electronic) Humidity Resolution Long Term Stability Output Impedance Symbol RH RH RH Vs Vout Ic Tcc ∆Vout/∆RH Is τ tw Z Min 0 4.75 1.17 Typ +/-2 +/-5 5 1.24 1.4 - 0.05 +26 Max 100 +/-3 5.25 1. 31 2 -0.1 150 +/-1 10 150 0.4 0.5 70 Unit %RH %RH %RH Vdc V mA %RH/°C mV/%RH µA %RH s ms %RH %RH/yr Ω *Maximum power supply ramp up time to Vcc should be less than 4ms. TYPICAL PERFORMANCE CURVES HUMIDITY SENSOR • HM1520LF Preliminary Specification when used from 1 to 30% RH • Those equations can be used above 30% RH and allow to obtain an over all accuracy as described in page 4 of this document in all humidity measuring range. Temperature (in the range 0 to 50°C) does not affec t HM1520LF measurement when used from 1% to 30% RH. No temperature compensation is required. • HM1520LF HPC091_C www.meas-spec.com 2/6 October 2012 HM1520LF – Relative Humidity Module • Signal output from 1% to 20% RH at 23°C RH (%) 1 2 3 4 5 6 7 8 9 10 Vout (mV) 1013 1038 1064 1089 1115 1141 1166 1192 1217 1243 RH (%) 11 12 13 14 15 16 17 18 19 20 Vout (mV) 1269 1294 1320 1346 1371 1397 1422 1448 1474 1499 With Vs = 5.0 Volts DC Calibration data are traceable to NIST standards through CETIAT laboratory. IMPORTANT NOTICE : HM1520LF is based on HS1101LF capacitive sensor and thus is fully useable on a large range of relative humidity (1% to 99% RH). In that range, HM1520LF presents a typical accuracy of +/-5% RH at 55% RH.) However HM1520LF is a dedicated module for humidity measurements at low Relative Humidity levels. Thus, HM1520LF is also well adapted to measure water concentrations (ppm) or low dew points when associated with an ambient temperature probe. HM1520LF features an optimized accuracy for water concentration below 6000 ppm water or 0°C dew point at 23°C (equivalent to 20% RH). • Typical Output of HM1520LF when measuring water concentration at ambient temperature of 23°C ppm 275 550 825 1100 1375 1650 1925 2200 2470 2750 Vout (mV) 1013 1038 1064 1089 1115 1141 1166 1192 1217 1243 ppm 3025 3300 3570 3850 4120 4395 4670 4945 5220 5495 Vout (mV) 1269 1294 1320 1346 1371 1397 1422 1448 1474 1499 ppmwater = 10.75 Vout - 10615 with Vout in mV • Typical Output of HM1520LF when measuring dew point at ambient temperature of 23°C DP (°C) -36 -29 -24 -21 -18.5 -16 -14.5 -13 -11.5 - 10 Vout (mV) 1013 1038 1064 1089 1115 1141 1166 1192 1217 1243 DP (°C) -9 -7.8 -6.8 -5.8 -4.9 -4.1 -3.2 -2.5 -1.6 -1.1 Vout (mV) 1269 1294 1320 1346 1371 1397 1422 1448 1474 1499 HM1520LF HPC091_C www.meas-spec.com 3/6 October 2012 HM1520LF – Relative Humidity Module • Accuracy of HM1520LF when used from 1% to 95% RH QUALIFICATION PROCESS RESISTANCE TO PHYSICAL AND CHEMICAL STRESSES • • • HM1520LF has passed through qualification processes of MEAS-FRANCE including vibration, shock, storage, high temperature and humidity, ESD. Additional tests under harsh chemical conditions demonstrate good operation in presence of salt atmosphere, SO2 (0.5%, H2S (0.5%), 03, NOx, NO, CO, CO2, Softener, Soap, Toluene, acids (H2SO4, HNO3, HCI), HMDS, Insecticide, Cigarette smoke, this is not an exhaustive list. HM1520LF is not light sensitive. SPECIFIC PRECAUTIONS • • HM1520LF is protected against reversed polarity. If you wish to use HM1520LF in a chemical atmosphere not listed above, consult us. HM1520LF HPC091_C www.meas-spec.com 4/6 October 2012 HM1520LF – Relative Humidity Module PACKAGE OUTLINE Dim Min (mm) Max (mm) A 9.75 10.25 B 4.00 4.50 C 53 55 D 10.9 11.4 E* 200 250 * Specific lenght available on request Wire Color Function W1 White Ground W2 Blue Supply Voltage W3 Yellow Humidity Output Voltage ORDERING INFORMATION HPP805C031 (MULTIPLE PACKAGE QUANTITY OF 10 PIECES) HM1520LF – HUMIDITY ANALOG VOLTAGE OUTPUT MODULE Sample kit of HM1520LF is available through MEASUREMENT SPECIALTIES web site: http://www.meas-spec.com/humidity-sensors.aspx Customer Service contact details Measurement Specialties, Inc - MEAS France Impasse Jeanne Benozzi CS 83 163 31027 Toulouse Cedex 3 FRANCE Tél: +33 (0)5 820 822 02 Fax: +33(0)5 820 821 51 Sales: humidity.sales@meas-spec.com HM1520LF HPC091_C www.meas-spec.com 5/6 October 2012 HM1520LF – Relative Humidity Module Revision A B C Comments Characteristics updated Standardized datasheet format and Current consumption lowering updated New MEAS template, MEAS-France contact details updated Who D. LE GALL Date January 08 D. LE GALL April 08 D. LE GALL-ZIRILLI October 12 The information in this sheet has been carefully reviewed and is believed to be accurate; however, no responsibility is assumed for inaccuracies. Furthermore, this information does not convey to the purchaser of such devices any license under the patent rights to the manufacturer. Measurement Specialties, Inc. reserves the right to make changes without further notice to any product herein. Measurement Specialties, Inc. makes no warranty, representation or guarantee regarding the suitability of its product for any particular purpose, nor does Measurement Specialties, Inc. assume any liability arising out of the application or use of any product or circuit and specifically disclaims any and all liability, including without limitation consequential or incidental damages. Typical parameters can and do vary in different applications. All operating parameters must be validated for each customer application by customer’s technical experts. Measurement Specialties, Inc. does not convey any license under its patent rights nor the rights of others. HM1520LF HPC091_C www.meas-spec.com 6/6 October 2012