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TGS2611 Datasheet(PDF) 2 Page - Figaro Engineering Inc. |
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TGS2611 Datasheet(HTML) 2 Page - Figaro Engineering Inc. |
2 / 2 page ![]() PRODUCT INFORMATION Structure and Dimensions: Basic Measuring Circuit: REV: 11/17 The sensor requires two voltage inputs: heater voltage (VH) and circuit voltage (VC). The heater voltage (VH) is applied to the integrated heater in order to maintain the sensing element at a specific temperature which is optimal for sensing. Circuit voltage (VC) is applied to allow measurement of voltageVOUT(VRL)acrossaloadresistor (RL) which is connected in series with the sensor. A common power supply circuit can be used for both VC and VH to fulfill the sensor's electrical requirements. The value of the load resistor (RL) should be chosen to optimize the alarm threshold value, keeping power dissipation (PS) of the semiconductor below a limit of 15mW. Power dissipation (PS) will be highest when the value of Rs is equal to RL on exposure to gas. Specifications: The value of power dissipation (PS) can be calculated by utilizing the following formula: PS = Sensor resistance (Rs) is calculated with a measured value of VOUT( VRL) by using the following formula: (VC - VRL)2 RS All sensor characteristics shown in this brochure represent typical characteristics. Actual characteristics vary from sensor to sensor. The only characteristics warranted are those in the Specification table above. TGS2611-C00 TGS2611-E00 Pin connection: 1: Heater 2: Sensor electrode (-) 3: Sensor electrode (+) 4: Heater ø9.2±0.2 12.4±1.0 10.0±1.0 3.6±0.1 1 2 3 4 3.6±0.1 ø8.1±0.2 ø0.55±0.05 ø5.1 90˚ Top view Side view Bottom view Sensing element ø9.2±0.2 3.6±0.1 1 2 3 4 3.6±0.1 ø8.1±0.2 ø0.55±0.05 ø5.1 90˚ 7.8±0.5 10.0±1.0 u/m:mm Model number TGS2611 Sensing principle MOS type Standard package TO-5 metal can Target gases Methane, Natural Gas Typical detection range 1~25% LEL Standard circuit conditions Heater voltage VH 5.0±0.2V AC/DC Circuit voltage VC 5.0±0.2V DC Ps≤15mW Load resistance RL variable 0.45kΩ min. Electrical characteristics under standard test conditions Heater resistance RH approx 59Ω at room temp. Heater current IH 56±5mA Heater power consumption PH 280mW±25mW Sensor resistance RS 0.68~6.8kΩ in 5000ppm methane Sensitivity (change ratio of Rs) 0.60±0.06 Rs (9000ppm) Rs (3000ppm) Standard test conditions Test gas conditions Methane in air at 20±2˚C, 65±5%RH Circuit conditions Vc = 5.0±0.01V DC VH = 5.0±0.05V DC Conditioning period before test 7 days RS = ( - 1) x RL VC VRL FIGARO ENGINEERING INC. 1-5-11 Senba-nishi Mino, Osaka 562-8505 JAPAN Tel: 81-72-728-2561 Fax: 81-72-728-0467 email: figaro@figaro.co.jp www.figaro.co.jp |
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