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HIH-4602-L Series

Humidity Sensors

DESCRIPTION

HIH-4602-L Series Relative Humidity (RH) sensors are

designed to deliver RH sensing in a rugged, low-cost slotted

TO-5 can.

The laser-trimmed, thermoset polymer capacitive sensing

elements have on-chip integrated signal conditioning, helping

to reduce product development times.

A typical current draw of only 200 µA allows use in battery-

powered systems.

HIH-4602-L-CP sensors include a calibration and data printout

to allow individually matched downstream electronics and

±3.5 %RH total accuracy.

FEATURES

• Near linear voltage output vs %RH

• Laser-trimmed interchangeability

• Enhanced accuracy, fast response

• Chemically resistant

• Stable, low drift performance

• Built-in static protection

• TO-5 can

POTENTIAL APPLICATIONS

• Refrigeration

• Drying

• Meteorology

• Battery-powered systems

• OEM (Original Equipment Manufacturer) assemblies

Summary of content (6 pages)

PAGE 1
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.
PAGE 2
HIH-4602-L Series Table 1. Performance Specifications (At 5 Vdc supply and 25 ºC [77 ºF] unless otherwise noted.) Parameter Minimum Interchangeability (first order curve) 0% RH to 59% RH 60% RH to 100% RH Accuracy (best fit straight line) Hysterisis Repeatability Settling time Response time (1/e in slow moving air) Stability (at 50% RH in one year) Voltage supply Current supply Output voltage temp. coefficient at 50% RH, 5 V Voltage output (1st order curve fit) – – – – -5 – 5 % RH -8 – 8 % RH -3.5 – +3.
PAGE 3
Humidity Sensors Figure 1. Operating Environment (Non-condensing environment.) Figure 2. Storage Environment (Non-condensing environment.
PAGE 4
HIH-4602-L Series Figure 3. Typical Output Voltage vs Relative Humidity (At 5 V and 25 °C.) 4 3.5 Output Voltage (Vdc) 3 2.5 Sensor Response Sensor Response Best Linear Fit 2 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 Output Voltage (Vdc) 3 2.5 0C 70 C 2 1.5 1 0.5 0 0 10 20 30 40 50 60 Relative Humidity (%) 4 www.honeywell.
PAGE 5
Humidity Sensors Figure 5. Mounting Dimensions (For reference only. mm/[in]) 1. Case ground 2. Vdc out 3. (-) Power or ground 4. (+) Vdc supply 5. No connection 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.
PAGE 6
Order Guide Catalog Listing HIH-4602-L HIH-4602-LP Description Relative humidity sensor in TO-5 can Relative humidity sensor in TO-5 can with calibration and data printout ADDITIONAL HUMIDITY SENSOR INFORMATION See the following associated literature at www.honeywell.