SH Thin-film Humidity Sensing Element Humidity Sensors

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Product Details

Brand Name	Comeco	Place of Origin	Russian Federation
Model Number	SH	Usage	Humidity Sensor
Theory	Other	Output	Analog Sensor

Product Description

Thin-film Humidity Sensing Element SH

• Low cost
• Wide T/RH operating zone
• Operating temperature up to 200°C
• Excellent sensibility
• Very good dynamic properties
• Short response time
• Long-term stability

The SH relative humidity sensing element consists of a system of electrodes on a glass-ceramic substrate, covered by a humidity-sensitive polymer coating and a water-vapor permeable metallic membrane. This coating system represents a humidity-dependent capacitor. Utilizing the principal of capacitive measurement, SH measures relative humidity in air or other non-aggressive gases and gas mixtures with good long-term stability and linearity, small hysteresis, and excellent dynamic response.

SH Thin-film Humidity Sensing Element Technical specifications

Variant	1	2	3
Measurement range	0 - 100 %RH
Operating temperature	-60~200°C; with protective cap (option): -40~120 °C
Temperature dependence	RH' = [RH + a(T-25)](b0 +b1 T+b2 T2), where: a = 0.04 for T ≥ 25°C, 0 for T<25°C; b0 = 0.98; b1 = 6x10-4; b2 = 6x10-6
Permissible voltage	max. 3 VAC (no DC voltage allowed!)
Nominal capacitance	115 ± 15 pF at 20°C	135 ± 10 pF at 20°C	1050 ± 50 pF at 20°C
Sensitivity	0.25 pF / %RH	0.35 pF / %RH	2.5 pF / %RH
Non-linearity	< 1.5% at 5 - 95 %RH	<1.5% at 5 - 95 %RH	<1.5% at 5 - 95 %RH
Hysteresis	<1.5 %RH at 5 - 95 %RH	<1.5 %RH at 5 - 95 %RH	<1.5 %RH at 5 - 95 %RH
Long-term stability	<1 %RH per year	<1 %RH per year	<1.5 %RH per year
Response time	<10 s	<10 s	<10 s
Loss factor	<0.03 at 10 kHz	<0.03 at 10 kHz	< 0.03 at 10 kHz
Operating frequency	30 - 300 kHz	30 - 300 kHz	30 - 300 kHz
Application	climate control, handheld meters, humidifiers, dehumidifiers, HVAC and industrial applications, high-temperature applications

SH Thin-film Humidity Sensing Element Ordering code SH* - #1

Code	Feature or option	Code values
*	Variant	1, 2, 3
#1	Protective cap	X - none, P - plastic protective cap

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Shenzhen Isweek Ltd.: Contact nameMs Rita yu
Chat Now; Phone86-755-83289036; Address16 Floor, Building #3, Zhongke Mansion, Gaoxin South 1st Rd, Hi-Tech Park, Nanshan, Shenzhen, Guangdong

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SH Thin-film Humidity Sensing Element Humidity Sensors

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