1 TECHNICAL DATA TEMPERATURE AND HUMIDITY MODULE HTF3226LF Based on the rugged HS1101LF humidity sensor, HTF3226LF is a dedicated humidity and temperature transducer designed for OEM applications where a reliable and accurate measurement is needed. It features a miniature connector for easy, cost-effective mechanical mounting. Direct interface with a micro-controller is made possible with the module’s linear frequency output. MAIN FEATURES � The best combination of cost effectiveness and performance � Stable, linear proportional frequency output from 10 to 95% RH. � Calibrated within +/- 5% RH @ 55% RH. � 10 kohm +/- 3% NTC temperature sensor (1% optional) � Stable and reproducible characteristics with temperature. � High reliability and long term stability. HUMIDITY SENSOR SPECIFIC FEATURES � Instantaneous de-saturation after long periods in saturation phase. � Fast response time. � High resistance to chemicals. Not affected by water immersion. � � Patented solid polymer structure. TEMPERATURE SENSOR SPECIFIC FEATURES � High quality thermistor � Stable � High sensitivity MAXIMUM RATINGS Ratings Symbol Value Unit Storage Temperature Tstg -40 to 85 °C Storage Humidity Range RHstg 0 to 100 % RH Supply Voltage (Peak) Vs 7 Vdc Humidity Operating Range RH 0 to 99 % RH Temperature Operating Range Ta -30 to 80 °C CHARACTERISTICS Humidity sensor (Ta = 25°C, Vs = 5.0 Vdc +/- 5%, R > 100 KΩ unless otherwise stated) L Characteristics Symbol Min. Typ. Max. Unit. Humidity metrology range RH 1 99 % RH Relative Humidity accuracy (10 to 95 % RH) RH +/- 5 +/- 10 % RH Voltage supply Vs 4.75 5.0 5.25 VdC Nominal output @ RH = 55 % Fout 8670 8750 8830 Hz Current consumption Ic 0.1 mA Temperature coefficient (0 to 60 °C ) Tcc - 0.2 % RH/°C Averaged Sensitivity from 33 % to 75 % RH ∆Fout /∆ RH -13 - 14 -16 Hz/% RH Condensing conditions output (100% RH) Fout 8000 8300 Hz Recovery time after 150 hours of condensation t 10 s Humidity Hysteresis +/-1 % RH Long term stability +/-0.5 % RH/yr Time constant (33 to 76% RH, static, @63 %) τ 10 s Humirel Sensor Device Data / HPC053 RevB May2004 2 TECHNICAL DATA Relative Humidity Accuracy of HTF 3226LF Relative Humidity in % Modeled Signal output (Linear Reference curve) : Fout = 9595 - 14.8*RH with Fout in Hz and RH in % 2 Modeled Signal output (Second order curve) : Fout = 9659 - 18.79*RH + 0.0404*RH Typical response look-up table RH (%) 0 5 10 15 20 25 30 35 40 45 50 Fout (Hz) 9490 9390 9295 9205 9125 9040 8965 8890 8820 RH (%) 55 60 65 70 75 80 85 90 95 100 Fout (Hz) 8750 8680 8615 8550 8485 8420 8355 8290 8225 Typical , Minimum and Maximum Frequency Values for HTF3226LF Relative Humidity in % Calibration data are traceable to NIST standards through CETIAT laboratory. Humirel Sensor Device Data / HPC053 Rev B May 2004 Fout in Hz Maximum error in % RH 3 TECHNICAL DATA CHARACTERISTICS Temperature sensor (Ta = 25°C) Characteristics Symbol Min. Typ. Max. Unit. Nominal resistance @ 25°C 10 kΩ Beta value : B25/100 B 3600 3730 3800 Temperature measuring range Ta - 30 80 °C Nominal Resistance Tolerance Rn 2 3 % B value tolerance B 3 % Response Time τ 10 s Typical temperature output Depending on the needed temperature measurement range The actual characteristic of an NTC thermistor can, however, only and associated accuracy, we suggest two methods to access to be roughly described by the exponential relation,as the material the NTC resistance values. parame ter B in reality also depends on temperature. So this approach is only suitable for describing a restricted range around 1 the rated temperature or resistance with sufficient accuracy. NTC resistance in Ωat temperature T in K 2 For practical applications a more precise description of the real NTC resistance in Ωat rated temperature in K R/T curve may be required. Either more complicated approaches (e.g Temperature in K the Steinhart-Hart equation) are used or the resistance/ temperature relation as given in tabulated form. The below table B value,material-specific constant of the NTC thermistor has been experimentally determined with utmost accuracy for temperature increments of 1 degree. Base of natural logarithm (e =2.71828) Temperature Resistance Max. Temperature Resistance Max. Temperature Resistance Max. Temperature Resistance Max. °C (ohm) Deviation °C (ohm) Deviation °C (ohm) Deviation °C (ohm) Deviation 54 3360 213 -30 144790 16636 26 9600 300 -2 33100 2230 55 3237 208 -29 136664 15444 27 9218 300 -1 31557 2078 28 8853 299 56 3126 204 -28 129054 14343 0 30029 1932 29 8506 297 57 3019 200 -27 121925 13325 1 28627 1799 58 2917 197 -26 115243 12383 30 8178 296 2 27299 1675 59 2819 193 -25 109030 11516 31 7866 294 3 26042 1560 32 7568 292 60 2720 189 -24 103115 10705 4 24852 1452 33 7283 290 61 2629 185 -23 97565 9953 5 23773 1355 62 2542 182 -22 92354 9257 34 7011 287 6 22708 1261 63 2458 178 -21 87460 8612 35 6734 284 7 21698 1174 36 6484 281 64 2378 175 -20 82923 8020 8 20739 1093 37 6244 278 65 2304 171 -19 78581 7463 9 19829 1017 66 2229 168 -18 74497 6947 38 6015 275 10 18959 946 67 2158 165 -17 70655 6468 39 5796 271 11 18128 879 40 5575 267 68 2089 161 -16 67039 6023 12 17338 817 41 5373 264 69 2022 158 -15 63591 5606 13 16588 759 70 1960 155 -14 60381 5222 42 5180 260 14 15876 705 71 1898 152 -13 57356 4865 43 4995 257 15 15207 654 44 4817 253 72 1839 149 -12 54503 4533 16 14569 607 45 4636 248 73 1782 146 -11 51813 4225 17 13962 563 74 1727 143 -10 49204 3932 46 4473 245 18 13384 522 75 1673 140 -9 46767 3662 47 4316 241 19 12834 484 48 4166 237 76 1622 138 -8 44467 3411 20 12280 447 49 4021 233 77 1573 135 -7 42296 3177 21 11777 413 78 1526 132 -6 40247 2960 50 3874 229 22 11297 382 79 1480 130 -5 38279 2756 51 3737 225 23 10840 353 52 3606 221 80 1432 127 -4 36455 2568 24 10404 325 53 3481 217 -3 34731 2393 25 10000 300 Humirel Sensor Device Data / HPC053 Rev B May 2004 4 TECHNICAL DATA QUALIFICATION PROCESS Resistance to physical and chemical stresses � HTF3226LF has passed through qualification processes of HUMIREL 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. � HTF3226LF is not light sensitive. PACKAGE OUTLINE HTF3226LF Dim ABCDEFG Min 9.7 8.5 28.0 14.5 1.5 3.5 1.45 Max 10.8 9.5 29.0 15.5 1.7 3.9 1.55 Dim HJKLMN Φ Min 4.8 7.3 3.0 Max 6.2 7.7 3.4 Dimensions in millimeters Connector type : JST model S4B-ZR to be mated with ZHR or 04ZR type female connectors ORDERING INFORMATION (Multiple Package Quantity of 50 pieces) :HPP808G031 HTF3226HT : Humidity Frequency output + NTC (Temperature direct output) SAMPLE KIT OF HTF 3226LF IS AVAILABLE THROUGH HUMIREL WEB SITE www.humirel.com email : sales@humirel.com The information in this sheet has been carefully reviewed and is believed to be accurate; however, no responsability 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. Humirel reserves the right to make changes without further notice to any product herein. Humirel makes no warranty, representation or guarantee regarding the suitability of its product for any particular purpose, nor does Humirel 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, including « Typical » must be validated for each customer applications by customer’s technical experts. Humirel does not convey any license under its patent rights nor the rights of others. Humirel products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other appli- cation intended to support or sustain life, or for any application in which the failure of the Humirel product could create a situation where personal injury or death may occur. Should buyer purchase or use Humirel products for any such unintended or unauthorized application, Buyer shall indemnify and hold Humirel and its officers, employees, subsidaries, affiliates and distribu- tors harmless against all claims, costs, damages and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of presonal injury or death associated with such unin- tended or unauthorized use, even if such claim alleges that Humirel was negligent regarding the design or manufacture of the part.Humirel is a registred trade mark of Humirel. Humirel Sensor Device Data / HPC053 Rev B May 2004