SMART SENSOR AS8800C Combustible Gas Detector User Manual

1. Introduction

Thank you for choosing the SMART SENSOR AS8800C Combustible Gas Detector. This device is a precise measurement apparatus designed to detect various combustible gases. For safe and effective operation, please read this instruction manual thoroughly before use.

Figure 1: SMART SENSOR AS8800C Combustible Gas Detector

2. Package Contents

Please check the package contents upon unboxing:

• SMART SENSOR AS8800C Combustible Gas Detector
• User Manual
• Carrying Bag
• Packing Box

Figure 2: Package Contents

3. Device Overview

Familiarize yourself with the components and display elements of your AS8800C detector.

Figure 3: Device Appearance and Display Description (Refer to original manual for detailed callouts)

3.1. Appearance Description (Refer to Figure 3, Section 3 of the manual image)

1. On/Off Button
2. Alarm Volume Button
3. Unit Selection Button
4. Backlight Adjustment Button
5. Mode Button
6. High Alarm Indicator
7. Low Alarm Indicator
8. Alarm Buzzer
9. LCD Display
10. Sensor Probe
11. Battery Door

3.2. Display Description (Refer to Figure 3, Section 2 of the manual image)

1. Measured Readings
2. Gas Unit (%LEL or PPM)
3. Gas Type
4. Alarm Sound Indication
5. Temperature Unit (°C or °F)
6. Temperature Readings
7. Backlight Indication
8. Battery Indication

4. Setup

4.1. Battery Installation

1. Open the battery door located on the back of the device.
2. Insert three (3) 1.5V AA batteries, ensuring correct polarity.
3. Close the battery door securely.

5. Operating Instructions

5.1. Power On/Off

• Power On: Press the On/Off button. The system will initiate a preheat process with a countdown. Measurement will be ready after the countdown finishes. You can skip the warm-up by pressing the power button during the countdown.
• Power Off: Press and hold the On/Off button until the device powers off.

5.2. Backlight On/Off

Press the Backlight Adjustment button to toggle the LCD backlight on or off.

Figure 4: HD Backlit Display

5.3. Alarm Buzzer On/Off

Press the Alarm Volume button to turn the buzzer sound on or off. A buzzer symbol will appear on the screen when activated.

Figure 5: Audio and Light Alarm Indication

5.4. Switching Temperature Unit

Under normal measuring mode, press the Unit Selection button to switch between Celsius (°C) and Fahrenheit (°F).

5.5. Gas Unit Selection (LEL/PPM)

Depress and hold the Unit Selection button to cycle between %LEL and PPM units. The corresponding unit icon will display on the LCD panel.

Figure 6: Unit Conversion Options

5.6. Auto Power Off (APO) Function

To activate or deactivate APO, press and hold the Mode button under normal measuring mode until the