DESCRIPTION
The HIH-4000 Series Humidity Sensors are designed
specifically for high volume OEM (Original Equipment
Manufacturer) users.
Direct input to a controller or other device is made possible by
this sensor’s near linear voltage output. With a typical current
draw of only 200 µA, the HIH-4000 Series is often ideally
suited for low drain, battery operated systems.
Tight sensor interchangeability reduces or eliminates OEM
production calibration costs. Individual sensor calibration data
is available.
The HIH-4000 Series delivers instrumentation-quality RH
(Relative Humidity) sensing performance in a competitively
priced, solderable SIP (Single In-line Package).
Available in two lead spacing configurations, the RH sensor is
a laser trimmed, thermoset polymer capacitive sensing
element with on-chip integrated signal conditioning.
The sensing element's multilayer construction provides
excellent resistance to most application hazards such as
wetting, dust, dirt, oils and common environmental chemicals.
FEATURES
Molded thermoset plastic housing
Near linear voltage output vs % RH
Laser trimmed interchangeability
Low power design
Enhanced accuracy
Fast response time
Stable, low drift performance
Chemically resistant
POTENTIAL APPLICATIONS
Refrigeration equipment
HVAC (Heating, Ventilation and Air Conditioning)
equipment
Medical equipment
Drying
Metrology
Battery-powered systems
OEM assemblies
2 www.honeywell.com/sensing
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)
–
5
–
s
–
Stability (at 50% RH)
–
1.2
–
% RH
–
Voltage supply
4
–
5.8
Vdc
2
Current supply
–
200
500
µA
–
Voltage output (1st order curve fit)
Temperature compensation
Output voltage temperature, coefficient at
50% RH, 5 V
–
-4
–
mV/ºC
Operating temperature
-40[-40]
See Figure 1.
85[185]
ºC[ºF]
–
Operating humidity
0
See Figure 1.
100
% RH
3
Storage temperature
-50[-58]
–
125[257]
ºC[ºF]
–
Storage humidity
See Figure 2.
% RH
3
Specific Notes:
1. Can only be achieved with the supplied slope and offset.
For HIH-4000-003 and HIH-4000-004 catalog listings only.
2. Device is calibrated at 5 Vdc and 25 ºC.
3. Non-condensing environment.
General Notes:
Sensor is ratiometric to supply voltage.
Extended exposure to >90% RH causes a reversible shift
of 3% RH.
Sensor is light sensitive. For best performance, shield
sensor from bright light.
FACTORY CALIBRATION DATA
HIH-4000 Sensors may be ordered with a calibration and data
printout. See Table 2 and the order guide on the back page.
Table 2. Example Data Printout
Model
HIH-4000-003
Channel
92
Wafer
030996M
MRP
337313
Calculated values at 5 V
VOUT at 0% RH
VOUT at 75.3% RH
0.826 V
3.198 V
Linear output for 3.5% RH
accuracy at 25 °C
Zero offset
Slope
RH
0.826 V
31.483 mV/%RH
(VOUT - zero offset)/slope
(VOUT - 0.826)/0.0315
Ratiometric response for
0% RH to 100% RH
VOUT
VSUPPLY (0.1652 to 0.7952)
Honeywell Sensing and Control 3
Figure 1. Operating Environment (Non-condensing environment.)
0%
10%
20%
30%
50%
40%
60%
70%
80%
90%
100%
-40 20-20 0 40 60 80 100
Relative Humidity
Temperature ºC
Recommended operating zone
Operating zone limited to <50 hours
No specification zone
Figure 2. Storage Environment (Non-condensing environment.)
0%
10%
20%
30%
50%
40%
60%
70%
80%
90%
100%
-40 20-20 0 40 60 80 100 120 140
Relative Humidity
Temperature ºC
Recommended storage zone
4 www.honeywell.com/sensing
Figure 3. Typical Output Voltage vs Relative Humidity (At 25 ºC and 5 V.)
TYPICAL OUTPUT VOLTAGE VS RELATIVE HUMIDITY (at 25 ºC and 5 V)
0.5
1
1.5
2
2.5
3
3.5
4
020 40 60 80 100
Relative Humidity (%RH)
Output Voltage (Vdc)
Sensor Response
Sensor Response
Best Linear Fit
Figure 4. Typical Output Voltage (BFSL) vs Relative Humidity (At 0 ºC, 70 ºC and 5 V.)
TYPICAL OUTPUT VOLTAGE (BFSL) VS RELATIVE HUMIDITY (at 0 ºC
and 70 ºC, 5 V)
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
010 20 30 40 50 60 70 80 90 100
Relative Humidity (%)
Output Voltage (Vdc)
0 C
70 C
Honeywell Sensing and Control 5
Figure 5. Mounting Dimensions (For reference only. mm/[in])
12,7 MIN.
[0.50]
8,59
[0.338]
1,27
[0.050] 2,54
[0.100]
3X 0,38
[0.015]
4,17
[0.164] 4,17
[0.164]
2,54
[0.100]
12,2 MIN.
[0.48]
1,91
[0.075]
8,59
[0.338]
2,03
[0.080]
3X 0,38
[0.015]
HIH-4000-001
HIH-4000-003
HIH-4000-005
HIH-4000-002
HIH-4000-004
2,54
[0.100]
-ve +ve
OUT
-ve +ve
OUT 0,89
[0.035]
Figure 6. Typical Application Circuit
HIH-40XX
+ Ve
- Ve
OUT
Supply Voltage (5 V)
VOLTAGE OUT
0 V
Minimum
Load
80
kOhm
ORDER GUIDE
Catalog Listing
Description
HIH-4000-001
Integrated circuit humidity sensor, 2,54 mm [0.100 in] lead pitch SIP
HIH-4000-002
Integrated circuit humidity sensor, 1,27 mm [0.050 in] lead pitch SIP
HIH-4000-003
Integrated circuit humidity sensor, 2,54 mm [0.100 in] lead pitch SIP, calibration and data printout
HIH-4000-004
Integrated circuit humidity sensor, 1,27 mm [0.050 in] lead pitch SIP, calibration and data printout
HIH-4000-005
Equivalent to HIH-4000-001
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
Sensing and Control
Honeywell
1985 Douglas Drive North
Golden Valley, MN 55422
www.honeywell.com/sensing
009017-5-EN IL50 GLO Printed in USA
February 2010
© 2010 Honeywell International Inc. All rights reserved.
WARNING
MISUSE OF DOCUMENTATION
The information presented in this product sheet is for
reference only. Do not use this document as a product
installation guide.
Complete installation, operation, and maintenance
information is provided in the instructions supplied with
each product.
Failure to comply with these instructions could result
in death or serious injury.
WARRANTY/REMEDY
Honeywell warrants goods of its manufacture as being free of
defective materials and faulty workmanship. Honeywell’s
standard product warranty applies unless agreed to otherwise
by Honeywell in writing; please refer to your order
acknowledgement or consult your local sales office for specific
warranty details. If warranted goods are returned to Honeywell
during the period of coverage, Honeywell will repair or replace,
at its option, without charge those items it finds defective. The
foregoing is buyer’s sole remedy and is in lieu of all other
warranties, expressed or implied, including those of
merchantability and fitness for a particular purpose. In no
event shall Honeywell be liable for consequential, special,
or indirect damages.
While we provide application assistance personally, through
our literature and the Honeywell web site, it is up to the
customer to determine the suitability of the product in the
application.
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.
WARNING
PERSONAL INJURY
DO NOT USE these products as safety or emergency stop
devices or in any other application where failure of the
product could result in personal injury.
Failure to comply with these instructions could result
in death or serious injury.
SALES AND SERVICE
Honeywell serves its customers through a worldwide network
of sales offices, representatives and distributors. For
application assistance, current specifications, pricing or name
of the nearest Authorized Distributor, contact your local sales
office or:
E-mail: info.sc@honeywell.com
Internet: www.honeywell.com/sensing
Phone and Fax:
Asia Pacific +65 6355-2828
+65 6445-3033 Fax
Europe +44 (0) 1698 481481
+44 (0) 1698 481676 Fax
Latin America +1-305-805-8188
+1-305-883-8257 Fax
USA/Canada +1-800-537-6945
+1-815-235-6847
+1-815-235-6545 Fax