MP503 datasheet(4/7 Pages) WINSEN

4 / 7 page

Zhengzhou Winsen Electronics Technology Co., Ltd

www.winsen-sensor.com

Tel: 86-371-67169097/67169670 Fax: 86-371-60932988

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Basic Circuit

Fig2. MP503 Test Circuit

Instructions: The above fig is the basic test circuit of MP503.The sensor requires two voltage inputs: heater

voltage (VH) and circuit voltage (VC). VH is used to supply standard working temperature to the sensor and it can

adopt DC or AC power, while VRL is the voltage of load resistance RL which is in series with sensor. Vc supplies the

detect voltage to load resistance RL and it should adopt DC power.

Description of Sensor Characters

Fig5.Responce and Resume

Fig6.Linearity curve

Fig3.Typical Sensitivity Curve

Rs means resistance in target gas with different

concentration, R0 means resistance of sensor in clean air.

All tests are finished under standard test conditions.

Fig4.Typical temperature/humidity characteristics

Rs means resistance of sensor in 50ppm alcohol under

different tem. and humidity. Rso means resistance of the

sensor in 50ppm alcohol under 20℃/55%RH.

Time(s)

Alcohol

CH4

iso-butane

Smoke

methanal

Concentration (ppm)

Alcohol

CH4

iso-butane

Smoke

methanal

Concentration (ppm)

Time (s)

MP503 Datasheet(PDF) 4 Page - Zhengzhou Winsen Electronics Technology Co., Ltd.