MQ-136 데이터시트 PDF

MQ-136 데이터시트 를 다운로드하여 반도체의 전기적 특성과 매개변수에 대해 알아보세요.

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HANWEI ELECTRONICS CO.,LTD

TECHNICAL DATA

MQ-136

http://www.hwsensor.com

MQ-136 GAS SENSOR

FEATURES

Fast response and High sensitivity

Stable and long life

Simple drive circuit

APPLICATION

They are used in air quality control equipments for buildings/offices, are suitable for detecting of H2S.

SPECIFICATIONS

A. Standard work condition

Symbol

Parameter name

Vc Circuit voltage

VH Heating voltage

RL Load resistance

RH Heater resistance

PH Heating consumption

B. Environment condition

Symbol

Parameter name

Tao Using Tem

Tas Storage Tem

RH Related humidity

O2 Oxygen concentration

C. Sensitivity characteristic

Symbol

Parameter name

Rs Sensing

Resistance

Technical condition

5V±0.1

5V±0.1

can adjust

31 5%

less than 800mw

Technical condition

-10 -45

-20 -70

less than 95%Rh

21%(standard condition)Oxygen

concentration can affect sensitivity

Technical parameter

30K -200K

(10ppm H2S )

Concent rat ion

(20/5)

Slope rate

0.65

H2S

Standard

Detecting

Condition

Temp: 20 2

Vc:5V±0.1

Humidity: 65%±5% Vh: 5V±0.1

Preheat time

Over 24 hour

D. Structure and configuration, basic measuring circuit

Remarks

AC OR DC

ACOR DC

Room Tem

Remarks

minimum value is

over 2%

Ramark 2

Detecting concentration

scope

1-100ppm H2S

Parts

1 Gas sensing

layer

2 Electrode

3 Electrode line

4 Heater coil

5 Tubular ceramic

6 Anti-explosion

network

7 Clamp ring

8 Resin base

9 Tube Pin

Materials

SnO2

Au

Pt

Ni-Cr alloy

Al2O3

Stainless steel gauze

(SUS316 100-mesh)

Copper plating Ni

Bakelite

Copper plating Ni

Configuration A

Fig. 1

Configuration B

Fig.2

Structure and configuration of MQ-136 gas sensor is show n as Fig. 1 (Configuration A or B), sensor composed

by micro AL2O3 ceramic tube, Tin Dioxide (SnO2) sensitive layer, measuring electrode and heater are fixed into a

crust made by plastic and stainless steel net. The heater provides necessary work conditions for work of

TEL: 86-371-5333098 5333099

FAX: 86-371-5333090

E-mail: sensor@371.net

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