1. Introducció
This manual provides essential information for the safe and effective operation of your ATO Portable Ozone Gas Detector, Model GD200-O3. This device is a hand-held meter designed for detecting ozone (O3) gas concentrations from 0 to 50 ppm. It features an LCD dot matrix display for direct readout of gas type, unit, concentration, local time, and other relevant data.
The detector is equipped with a built-in micro-sampling pump, offering 10 grades of suction for accurate and reliable measurements. Its high-strength special engineering plastic housing provides anti-slip, waterproof, dustproof, and explosion-proof properties, ensuring durability in various environments.
2. Informació de seguretat
Always read and understand this manual before operating the device. Failure to follow safety instructions may result in injury or damage to the device.
- Ensure the device is properly calibrated before each use, especially when entering a new detection area.
- Do not attempt to open or repair the device yourself. Refer to qualified personnel for servicing.
- Operate the device in well-ventilated areas during initial startup and calibration.
- Mantingueu el dispositiu allunyat de temperatures extremes, humitat i substàncies corrosives.
- Charge the device using only the provided power adapter and USB cable.
3. Producte acabatview & Components
The ATO Portable Ozone Gas Detector is a compact, hand-held device designed for ease of use and portability. It comes with essential accessories for operation and maintenance.

Image: The ATO Portable Ozone Gas Detector shown with its protective aluminum alloy carrying case, illustrating the device's compact size and the included accessories.
Disseny del dispositiu

Image: A detailed diagram of the gas detector with numbered labels pointing to key components: (1) Air Inlet, (2) Air Outlet, (3) Air Chamber of Sensor, (4) LCD, (5) PLUS button, (6) MINUS button, (7) MENU button, (8) ESC button, (9) ON/OFF button.
Característiques principals:
- Pantalla LCD: Dot matrix display for clear information readout.
- Built-in Micro-sampling Pump: 10 adjustable suction speeds for precise gas intake.
- Habitatge durador: High-strength ABS+PC plastic for resistance to water, dust, slipping, and explosion.
- Temperature & Pressure Compensation: Ensures accurate readings under varying environmental conditions.
- Alarm Point Setting: Customizable low and high alarm thresholds.
- Self-calibration & Zero Calibration: Enhances detection accuracy and reliability.
- Funció de memòria: Stores historical data for review i anàlisi.
- Interfície USB: Allows for high-speed data transmission to a computer.
4. Configuració i ús inicial
Encès/Apagat
- Per encendre el dispositiu, premeu i manteniu premut el botó ON/OFF button (9) in the center for 3 seconds.
- The device will undergo a 60-second warm-up sequence to ensure sensors are fully activated. The screen will display various information during this time.
- Once warm-up is complete, the device enters measure mode, displaying real-time gas concentration.
- Per apagar-lo, manteniu premut el botó ON/OFF button for 3 seconds until the device shuts down.
5. Instruccions de funcionament
All operations are performed using the five buttons on the device: ON/OFF, MENÚ, ESC, UP (PLUS), and ABAIX (MINUS).

Image: Illustration of the device's control panel, detailing the function of each button for menu navigation and setting adjustments.
Navegació pel menú
- From the measure mode, press the MENÚ button (7) to enter the main menu.
- Utilitza el UP (5) i ABAIX (6) arrow buttons to navigate through menu options.
- Premeu el botó ON/OFF button (9) to select an option.
- Premeu el botó ESC button (8) to return to the previous menu or exit to measure mode.
Configuració dels paràmetres
Video: This video demonstrates how to adjust various parameter settings on the ATO Portable Single Gas Detector, including alarm points, pump speed, and other basic configurations.
5.1 Alarm Point Setting
- From the main menu, select "Alarm point set" and press the ON/OFF botó.
- You will see "LOW POINT" and "HIGH POINT" values.
- Utilitza el UP i ABAIX arrow buttons to revise the figures.
- Premeu el botó MENÚ button to move between digits within a value (e.g., from tens to units).
- After adjusting, press the ON/OFF button to confirm and save your changes.
5.2 Configuració de la velocitat de la bomba
- From the main menu, select "Pump speed set" and press the ON/OFF botó.
- There are 11 speed settings available. Use the UP i ABAIX arrow buttons to adjust the pump speed. Higher speed results in greater vibration.
- Premeu el botó ON/OFF button to confirm your selection and return to the main menu.
5.3 Configuració de data i hora
- From the main menu, select "Date&Time set" and press the ON/OFF botó.
- Utilitza el UP i ABAIX arrow buttons to modify the specific date and time.
- Premeu el botó MENÚ button to move between different sections (e.g., year, month, day, hour, minute).
- Premeu el botó ON/OFF button to confirm and save your changes.
5.4 Selecció de la llengua
- From the main menu, select "Language select" and press the ON/OFF botó.
- Utilitza el UP i ABAIX arrow buttons to choose your preferred language (e.g., English, Chinese).
- Premeu el botó ON/OFF botó per confirmar la selecció.
5.5 Gray Level Setting
- From the main menu, select "Gray Level set" and press the ON/OFF botó.
- Utilitza el UP i ABAIX arrow buttons to adjust the backlight intensity for desired visibility.
- Premeu el botó ON/OFF button to confirm your action.
5.6 Restaura la configuració
This function is useful for resetting all parameters to factory defaults or when the instrument is malfunctioning (e.g., continuous alarm). To activate this function, you will need to enter a password. Please contact ATO support if you require the password.
- From the main menu, select "Restore settings" and press the ON/OFF botó.
- Enter the password using the arrow buttons and MENÚ button to navigate digits.
- Premeu el botó ON/OFF button to confirm and restore settings.
5.7 Funció d'emmagatzematge
The device has a memory function to store detection results. By default, the storage function is OFF when the device is powered on. You need to manually enable it to track instrument detection results.
- From the main menu, select "Storage set" and press the ON/OFF botó.
- Utilitza el DRET arrow button to enable or disable the storage function.
- Premeu el botó MENÚ button to navigate to the storage interval setting.
- Utilitza el UP i ABAIX arrow buttons to adjust the interval.
- Premeu el botó ON/OFF botó per confirmar la selecció.
View Història
- From the main menu, select "View history" and press the ON/OFF botó.
- The display will show four lines of information: record number, date, time, and gas concentration.
- Utilitza el UP i ABAIX arrow buttons to navigate through stored records.
Erase History Data
To erase all stored history data, you will need to enter a password.
- From the main menu, select "Erase ex_flash" and press the ON/OFF botó.
- Enter the password (default is 9999) using the arrow buttons and MENÚ botó.
- Premeu el botó ON/OFF button to confirm. The device will beep and display "Chip Erase..." then return to measure mode once complete.
6. Calibració
Zero calibration and Span calibration are crucial for maintaining the accuracy of your gas detector. These steps require rigorous operating conditions and should be performed by qualified professionals using necessary accessories and standard gas.
Video: This video provides a step-by-step guide on how to perform calibration for the portable gas detector, covering both zero and span calibration procedures.
6.1 Calibració zero
Zero calibration is performed when the reading drift is too large after stabilization, or when an alarm occurs. This ensures the device accurately reads zero concentration in a clean air environment.
- From the main menu, select "Calibrate zero" and press the ON/OFF botó.
- You will be prompted to enter a password. Please contact ATO support for the password.
- Follow the on-screen instructions to expose the sensor to clean air and confirm the zero calibration.
6.2 Calibració del span
Span calibration (also known as target point calibration) involves applying a standard gas of a specific known concentration to the sensor without atmospheric dilution. The calibration result should match the concentration of the standard gas.
- From the main menu, select "Calibrate span" and press the ON/OFF botó.
- You will be prompted to enter a password. Please contact ATO support for the password.
- Connect the device to a standard gas source with a known concentration using appropriate regulators and flowmeters.
- Follow the on-screen instructions to apply the standard gas and confirm the span calibration.
The detector must be calibrated regularly to ensure accuracy and reliability, especially before entering detection areas.
7. Manteniment
Càrrega de la bateria
The device is powered by a rechargeable lithium-polymer battery. When the battery level is low, the device will indicate this on the display.
- Insert the charging cable into the USB port on the device.
- Connecteu l'adaptador de corrent a una presa de corrent adequada.
- The device display will show the recharging status.
Transmissió de dades
Video: This video demonstrates how to connect the ATO Portable Oxygen Gas Detector to a PC for data transmission and analysis, utilizing the integrated USB port.
The integrated USB port allows for high-speed data transmission to your computer for easier analysis of stored historical data.
- Connecteu el dispositiu a l'ordinador mitjançant el cable USB proporcionat.
- Follow the instructions in the accompanying software (if applicable) to download and analyze the data.
8. Solució De Problemes
If you encounter any issues with your ATO Portable Ozone Gas Detector, please refer to the following common troubleshooting steps:
- El dispositiu no s'encén: Ensure the battery is charged. Connect the device to the charger and try again.
- Lectures inexactes: Perform a zero and span calibration in a controlled environment. Ensure the sensor is clean and unobstructed.
- Continuous alarm: Check the alarm point settings. If the alarm persists in a clean environment, perform a zero calibration or restore factory settings (requires password).
- Problemes de transferència de dades: Ensure the USB cable is securely connected to both the device and the computer. Check for any driver installations required by your operating system.
- Problemes de visualització de la pantalla: Adjust the gray level setting for better visibility. If the issue persists, contact support.
For persistent issues or technical support, please contact ATO customer service.
9. Especificacions
| Característica | Detall |
|---|---|
| Marca | ATO |
| Estil | Digital |
| Font d'alimentació | Funciona amb bateria |
| Pes de l'article | 300 grams (10.6 unces) |
| Tipus d’alarma | Vibració |
| Humitat de funcionament | 95 percent (non-condensing) |
| Classificació de temperatura superior | 50 graus centígrads |
| Dimensions del producte | 8.27 x 3.15 x 1.18 polzades |
| Número de model de l'article | GD200-O3 |
| UPC | 783902769113 |
10. Garantia i Suport
For warranty information, technical support, or any questions regarding your ATO Portable Ozone Gas Detector, please contact ATO customer service through the official ATO website or your point of purchase. Keep your purchase receipt and product serial number handy for faster service.





