4161 detection Carbon Dioxide High selectivity Compact size depen

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4161 detection Carbon Dioxide High selectivity Compact size depen

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4161 detection Carbon Dioxide
High selectivity Compact size dependency humidity Long life cost power consumption
Applications:
Indoor quality control
TGS4161 solid electrolyte sensor which offers miniaturization power consumption. range 350~5,000ppm carbon dioxide detected TGS4161, making ideal indoor control applications. sensitive element consists solid electrolyte formed between electrodes, together with printed heater (RuO2) substrate. monitoring change electromotive force (EMF) generated between electrodes, possible measure concentration. sensor contains adsorbent (zeolite) purpose reducing influence interference gases. TGS4161 exhibits linear relationship between concentration logarithmic scale. sensor displays good long term stability shows excellent durability against effects high humidity. figure below represents typical sensitivity characteristics TGS4161. Y-axis indicated which defined follows: EMF=EMF1 EMF2 figure below shows typical humidity dependency TGS4161. Again, Y-axis indicated which defined follows: EMF=EMF1 EMF2
where
EMF1=EMF EMF2=EMF listed concentration Sensitivity Characteristics:
where
EMF1=EMF EMF2=EMF 1000ppm Humidity Dependency:
(mV)
Ethanol
(350ppm CO2)
(mV)
(mV)
(350ppm 1000ppm CO2)
1000 Concentration (ppm)
10000
Relative Humidity
IMPORTANT NOTE: OPERATING CONDITIONS WHICH FIGARO SENSORS USED WILL VARY WITH EACH CUSTOMER'S SPECIFIC APPLICATIONS. FIGARO STRONGLY RECOMMENDS CONSULTING TECHNICAL STAFF BEFORE DEPLOYING FIGARO SENSORS YOUR APPLICATION AND, PARTICULAR, WHEN CUSTOMER'S TARGET GASES LISTED HEREIN. FIGARO CANNOT ASSUME RESPONSIBILITY SENSORS PRODUCT APPLICATION WHICH SENSOR BEEN SPECIFICALLY TESTED FIGARO.
Basic Measuring Circuit:
TGS4161 sensor requires heater voltage (VH) input. heater voltage applied integrated heater order maintain sensing element specific temperature which optimal sensing. Electromotive force (EMF) sensor should measured using high impedance (>100 operational amplifier with bias current (e.g. Texas Instruments' model #TLC271). Since solid electrolyte type sensor
functions kind battery, value itself would drift using this basic measuring circuit. However, change value (EMF) shows stable relationship with change concentration. Therefore, order obtain accurate measurement CO2, special microprocessor signal processing should used with TGS4161. Figaro provide special evaluation sensor module (AM-4) TGS4161.
4161
VEMF
Operational Amplifier Input impedance 100G Bias current
Vout
Specifications:
Model number Sensing element type Target gases Typical detection range Heater resistance Heater current Heater power consumption Electromotive force Sensitivity Heater voltage Sensor characteristics Response time Measurement accuracy 4161 Solid electrolyte Carbon dioxide 5000 room temp. approx. 50mA approx. 250mW 220~490mV 350ppm 44~72mV
EMF(350ppm CO2)EMF(3500ppm CO2)
Structure Dimensions:
view
Electrical characteristics
0.2V (DC) approx. min. final value) approx. ±20% 1,000ppm -10~50°C, 5~95%RH -20~60°C, 5~90%RH
(store moisture proof with silica gel)
Operating conditions Strorage conditions Test condition Standard test conditions Circuit condition Conditioning period before test
12.7±0.5
20±2°C, 65±5%RH
Side view
10.0±1.0
0.55±0.05 3.6±0.1
5.0±0.05V days
Sensing Element Structure:
Solid electrolyte
Lead wire
Heater Glass
Bottom view
3.6±0.1
Electrode Substrate
Connection: Heater Counter electrode Sensing electrode Heater
Sensing electrode
Counter electrode
unit:mm
Solid electrolyte side
Heater side
FIGARO ENGINEERING INC. 1-5-11 Senba-nishi Mino, Osaka 562-8505 JAPAN Phone: (81)-72-728-2561 Fax: (81)-72-728-0467 email: figaro@figaro.co.jp
information warranty, please refer Standard Terms Conditions Sale Figaro Inc.
FIGARO USA, INC. 3703 West Lake Ave. Suite Glenview, Illinois 60025 Phone: (1)-847-832-1701 Fax: (1)-847-832-1705 email: figarousa@figarosensor.com
REV: 04/03

4161 detection Carbon Dioxide High selectivity Compact size depen

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