dahua 1.2.51.32.19313-000 Gas Alarm User Manual

dahua 1.2.51.32.19313-000 Gas Alarm

Introduction

Overview
DHI-HY-GA40A Gas Alarm (Methane) (hereinafter referred to as the Device) is designed to continuously monitor methane concentration. Adopting a catalytic- type gas sensor, advanced electrical technology, MCU, a built-in high-volume buzzer, it responds quickly and becomes highly sensitive with stable performance and low false alarm. Once the surrounding methane concentration reaches the alarm value, it will promptly send out visual and audible alarm signal to remind the user to take immediate measures. Application scenarios include homes, restaurants, hotels and other places that require methane detection.
Structure Panel

Table 1-1 Status introduction

Warm-up

| •   During warm-up period:Power indicator flashes 3 minutes.

•   After warm-up period: After 3 minutes, all indicators are constantly on for 3 seconds, and buzzer beeps.

Standby| Power light is constantly on.

Fault

| •  Malfunctioned sensor: Fault indicator is constantly on, the buzzer beeps continuously.

•  End of life:Once the maximum lifetime (5 years) of sensor is reached, the Fault indicator flashes and the buzzer beeps.

Alarm| The alarm threshold is set to 10%LEL. When methane concentration reaches this threshold, the

Alarm indicator isconstantly on with the alarm sound.

Connection

Dimensions

Technical Information

Device Installation

Packing List
Check the package according to the following checklist. If you find device damage or any loss, contact the after-sales service.

Table 3-1Checklist

Installation Position

This Alarm is intended for use in ordinary indoor locations of family living units.

• A well-ventilated place within 1.5 meters (4.92 ft) of cooking appliance is recommended.
• On the upper part of the methane source, and the horizontal distance from the burning appliance or valve should not be greater than 6 meters (19.69 ft), and it should not be installed above the burning appliance.
• Avoid the installation in the corners, cabinets and other places where the air is not easy to circulate, or in the places where it is easy to be directly smoked by oil fume.

Installation Steps
Follow below steps to install the device properly.

• Step 1 Choose suitable place to install positioning map.
• Step 2 Drill holes (5 mm [0.20″]) on the wall as the positioning map shows, and then align the screw holes on the wall with the expansion bolts.
• Step 3 Fix the mounting plate with self-tapping screws.
• Step 4 Install the Device.
  • Put the hook on the mounting plate into the groove of the device. Figure 3-3 Installation (2)
  • Put the device into the plate from top to bottom.
    Figure 3-4 Installation (3)

Test

After the installation of the Device or regular maintenance, a test must be carried out to confirm that the Device is operating properly. During the testing process, the defective Device should be addressed according to “FAQ” and “Maintenance”, and then tested again. If it fails to complete the test successfully, please send the Device to the manufacturer for repair.
Power on
After powering on, all indicator lights turn on for 3 seconds, the Device enters in warm-up status, and the Power indicator flashes. After 3 minutes, all indicators are constantly on 3 seconds and buzzer beeps.
Device self-test

• Short press the Test button, all indicator lights flash and buzzer beeps.
• Long press the Test button, all indicator lights flash and buzzer beeps. The valve starts to output after 5 seconds. Release the Test button, the alarm sound ends, the indicator lights return to normal working status, and the check is completed.

Alarm test
The alarm concentration value is set to 10% LEL. When the methane concentration reaches this threshold, the Alarm light flashes and the Device sends sound signal. When the concentration is lower than the predetermined value, the Device returns to its normal working state.

Operation

When the indoor methane concentration reaches the predetermined threshold, the Device sends out alarm signal. Please carefully review the following guidance to take proper action in the event of an alarm.

• Keep calm and ventilate the property by opening doors and windows.
• Stop using all fuel-burning appliances, and do not turn on or off lights until the room has been checked by an expert.
• Evacuate the property leaving the doors and windows open.
• Stay away from the leakage place. Call the Fire Department as soon as possible from outside.
• Don’t re-enter the property until the alarm has stopped and the leakage source is handled.

FAQ

Green Power indicator light does

not flash

| Poor connection of power cable| Check the connection of power cable
Indicator light is broken| Contact with the manufacturer
Press Test button, there is no alarm| Circuit fault| Contact with the manufacturer
No response to detected methane| Circuit fault| Contact with the manufacturer
Warm-up is not completed| Keep preheating sensor

Alarm sounds continuously

| There is a large amount of volatile

substances such as alcohol. perfume, gasoline, banana water and paint

|

Move it to clean air to test performance

Store for too long| Keep powering on for 2 hours
Circuit fault| Contact with the manufacturer

Maintenance

To keep your device in good working condition, please follow these requirements.

•  Simulate fire alarm test: once half a year (recommended).
• Under normal working conditions, press the Test button to ensure that the Device can work normally. If there is a malfunction, please repair it in time. After cleaning, please install the Device and test again.
• Clean the shell: at least once per year (recommended).
• Keep the Device free of dust or inserts by gently vacuuming the shell with a soft brush attachment when required. Avoid cleaning solutions on the Device to prevent the possibility of contaminating the sensor.
• For User’s Manual in other languages, please scan the QR code below or visit https://www.wisualarm.com/en/Products/ALL to select specific product and see the manual.
• Zhejiang HuaXiao Technology Co.,Ltd.
• Address: Area A, Floor 3, Building C, No. 28 Dongqiao Road, Dongzhou Sub-district, Fuyang
• District, Hangzhou City, Zhejiang Province, China
• Website: http://www.wisualarm.com/en/home.

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