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Summary of Contents for Figaro EM26AQS
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Page 1: Table Of Contents
EM26AQS - Evaluation Module for TGS26 Series Air Quality Sensors Instruction Manual Table of Contents 1. Overview 2. Functions and Settings of Each Part 2-1) Pin Connections 2-2) Switch setting for Power input 2-3) Switch settings for gas sensor models... -
Page 2: Overview
1. Overview The EM26AQS is a multifunctional evaluation module with built-in signal processing software for the dynamic benchmark renewal algorithm, which is required when incorporating semiconductor-type air quality gas sensors (TGS2600, 2602, 2603) into air purifiers, among other applications. The module carries out signal processing on the voltage output of the gas sensor to output the Indoor Air Quality Level (VAQL) as a voltage with 5 levels. -
Page 3: 2-2) Switch Setting For Power Input
2-2) Switch setting for Power input: SW1 There are two connectors available for the power input: a 5-pin connector or a USB-Type C connector. When using the 5-pin connector (CN1), switch SW1 to the "CN1_ON" side. When using the USB- Type C connector (CN3), switch SW1 to the "CN3_ON"... -
Page 4: 2-6) Load Resistance Rl Setting
Fig 2. Image of LED lighting (when LED D4 is on.) 2-6) Load resistance RL setting: JP1-JP3 The proper load resistance (RL) setting is required to measure the sensor output (VOUT) as follows. The factory setting of the jumper pin JP is 10kΩ as a recommended value. Choose 51kΩ if VOUT value is too small, or 2kΩ... -
Page 5: How To Use Em26Aqs
3. How to use EM26AQS EM26AQS operates as shown in the follow chart: Power on Warm-up (for 2 minutes) Normal mode Reset function 3-1) Warm-up period For 2 minutes after turning on the power, the AQ Level 1 (clean) indication will be displayed regardless of the degree of air pollution, and the blue LED will blink at 0.5 second interval. -
Page 6: 3-4) Sensor Mounting
Approx. 15g (excluding gas sensor) 5. Extension Function As an extension function, the EM26AQS has a dedicated TGS2660 mode that facilitates the evaluation of the ventilation index sensor TGS2660. The TGS2660 mode enables to provide 5 levels of the Ventilation Index Output (VIO) as an indication of low-concentration indoor air pollution caused by room occupants using TGS2660 sensor. - Page 7 As with the evaluation of the other TGS260x series air quality sensors, the extension function includes warm-up, normal mode, and reset functions. Please refer to "3. How to use EM26AQS " for details. When the tactile switch (SW3) is pressed for 4 seconds or more during normal operation mode, the reference value will be forced to update to the sensor resistance value in the ambient air conditions at that moment.
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Page 8: Troubleshooting
* This module is designed for the evaluation of TGS26-series air quality sensors only and not for other purposes or applications. For any product-related inquiries, please contact us using the information provided below. Figaro Engineering Inc. 1-5-11 Senba-nishi, Minoh, Osaka 562-8505 JAPAN Tel: (81) 72-728-2561 e-mail: figaro@figaro.co.jp...
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