HIH-4602-L Series Humidity Sensors DESCRIPTION A typical current draw of only 200 µA allows use in battery- HIH-4602-L Series Relative Humidity (RH) sensors are powered systems. designed to deliver RH sensing in a rugged, low-cost slotted TO-5 can. HIH-4602-L-CP sensors include a calibration and data printout to allow individually matched downstream electronics and The laser-trimmed, thermoset polymer capacitive sensing ±3.5 %RH total accuracy. elements have on-chip integrated signal conditioning, helping to reduce product development times. FEATURES POTENTIAL APPLICATIONS • Near linear voltage output vs %RH • Refrigeration • Laser-trimmed interchangeability • Drying • Enhanced accuracy, fast response • Meteorology • Chemically resistant • Battery-powered systems • Stable, low drift performance • OEM (Original Equipment Manufacturer) assemblies • Built-in static protection • TO-5 can

HIH-4602-L Series Table 1. Performance Specifications (At 5 Vdc supply and 25 ºC [77 ºF] unless otherwise noted.) Parameter Minimum Typical Maximum Unit Specific Note Interchangeability (first order curve) – – – – – 0% RH to 59% RH -5 – 5 % RH – 60% RH to 100% RH -8 – 8 % RH – Accuracy (best fit straight line) -3.5 – +3.5 % RH 1 Hysterisis – 3 – % RH – Repeatability – ±0.5 – % RH – Settling time – – 70 ms – Response time (1/e in slow moving air) – 30 – s – Stability (at 50% RH in one year) – 1.2 – % RH – Voltage supply 4 – 5.8 Vdc – Current supply – 200 500 µA – Output voltage temp. coefficient at 50% RH, 5 V – -4 – mV/°C – Voltage output (1st order curve fit) V = (V )(0.0062(sensor RH) + 0.16), typical at 25 °C 2 OUT SUPPLY Temperature compensation True RH = (sensor RH)/(1.0546-0.00216T), T in °C Operating temperature -40[-40] See Figure 1. 85[185] °C[°F] – Operating humidity 0 See Figure 1. 100 % RH 3 Storage temperature -40[-40] See Figure 2. 125[257] °C[°F] – Storage humidity See Figure 2. % RH 3 Specific Notes: General Notes: 1. Applies to HIH-4602-L-CP only. • Sensor is ratiometric to supply voltage. 2. Device is calibrated at 5 Vdc and 25 ºC. • Extended exposure to >90% RH causes a reversible shift of 3. Non-condensing environment. 3% RH. • Sensor is light sensitive. For best performance, shield sensor from bright light. Factory Calibration Data HIH-4602-L-CP Sensors include a calibration and data printout. See Table 2. Table 2. Example Data Printout Model HIH-4602-L-CP Channel 92 Wafer 030996M MRP 337313 Calculated values at 5 V V at 0% RH 0.958 V OUT V at 75.3% RH 3.268 V OUT Linear output for 3.5% RH accuracy at 25 °C Zero offset 0.958 V Slope 30.680 mV/%RH RH (V - zero offset)/slope OUT (V - 0.958)/0.0307 OUT Ratiometric response for 0% RH to 100% RH V V (0.1915 to 0.8130) OUT SUPPLY 2 www.honeywell.com/sensing

Humidity Sensors Figure 1. Operating Environment (Non-condensing environment.) Figure 2. Storage Environment (Non-condensing environment.) Honeywell Sensing and Control 3

HIH-4602-L Series Figure 3. Typical Output Voltage vs Relative Humidity (At 5 V and 25 °C.) 4 3.5 3 c) d V ge ( 2.5 Sensor Response a olt Sensor Response V ut 2 Best Linear Fit p ut O 1.5 1 0.5 0 20 40 60 80 100 Relative Humidity (%RH) Figure 4. Typical Output Voltage (BFSL) vs Relative Humidity (At 0 ºC, 70 ºC and 5 V.) 4.5 4 3.5 3 c) d V e ( 2.5 ag 0 C olt 70 C V ut 2 p ut O 1.5 1 0.5 0 0 10 20 30 40 50 60 70 80 90 100 Relative Humidity (%) 4 www.honeywell.com/sensing

Humidity Sensors Figure 5. Mounting Dimensions (For reference only. mm/[in]) 1. Case ground 4. (+) Vdc supply 2. Vdc out 5. No connection 3. (-) Power or ground 6. No connection Figure 6. RH Sensor Construction Figure 7. Typical Application Circuit Sensor construction consists of a planar capacitor with a second polymer layer to protect against most dirt/dust particles, oils and other hazards. Honeywell Sensing and Control 5

Order Guide Catalog Listing Description HIH-4602-L Relative humidity sensor in TO-5 can HIH-4602-LP Relative humidity sensor in TO-5 can with calibration and data printout ADDITIONAL HUMIDITY SENSOR INFORMATION See the following associated literature at www.honeywell.com/sensing: • Product installation instructions • Application sheets: – Humidity Sensor Performance Characteristics – Humidity Sensor Theory and Behavior – Humidity Sensor Moisture and Psychrometrics – Thermoset Polymer-based Capacitive Sensors WARNING WARNING MISUSE OF DOCUMENTATION PERSONAL INJURY • The information presented in this product sheet is for DO NOT USE these products as safety or emergency stop reference only. Do not use this document as a product devices or in any other application where failure of the installation guide. product could result in personal injury. • Complete installation, operation, and maintenance Failure to comply with these instructions could result information is provided in the instructions supplied with in death or serious injury. each product. Failure to comply with these instructions could result in death or serious injury. SALES AND SERVICE Honeywell serves its customers through a worldwide network WARRANTY/REMEDY of sales offices, representatives and distributors. For Honeywell warrants goods of its manufacture as being free of application assistance, current specifications, pricing or name defective materials and faulty workmanship. Honeywell’s of the nearest Authorized Distributor, contact your local sales standard product warranty applies unless agreed to otherwise office or: by Honeywell in writing; please refer to your order acknowledgement or consult your local sales office for specific E-mail: info.sc@honeywell.com warranty details. If warranted goods are returned to Honeywell during the period of coverage, Honeywell will repair or replace, Internet: www.honeywell.com/sensing at its option, without charge those items it finds defective. The foregoing is buyer’s sole remedy and is in lieu of all other Phone and Fax: warranties, expressed or implied, including those of merchantability and fitness for a particular purpose. In no Asia Pacific +65 6355-2828 event shall Honeywell be liable for consequential, special, +65 6445-3033 Fax or indirect damages. Europe +44 (0) 1698 481481 +44 (0) 1698 481676 Fax While we provide application assistance personally, through Latin America +1-305-805-8188 our literature and the Honeywell web site, it is up to the +1-305-883-8257 Fax customer to determine the suitability of the product in the USA/Canada +1-800-537-6945 application. +1-815-235-6847 +1-815-235-6545 Fax Specifications may change without notice. The information we supply is believed to be accurate and reliable as of this printing. However, we assume no responsibility for its use. Automation and Control Solutions Sensing and Control Honeywell 1985 Douglas Drive North Minneapolis, MN 55422 009043-1-EN IL50 GLO Printed in USA December 2008 www.honeywell.com/sensing © 2008 Honeywell International Inc. All rights reserved.