HIH-4602-L-CP Honeywell

HIH-4602-L Series Humidity Sensors DESCRIPTION A typical current draw of only 200 A 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 C 77 F 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 A 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 C. 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