How to set the alarm value of a gas detector
The use of gas detectors is becoming increasingly widespread, whether it is environmental monitoring, safety production, scientific research experiments, etc. Gas detectors are needed, and in some cases, sound and light alarms are required. When the detected gas concentration reaches a certain value, a prompt is given. So how to set the alarm value?
Alarm point setting: Conventional factory only has A1 alarm value and A2 alarm value; TWA alarm value, S alarm value, and low concentration alarm value can be set separately according to user requirements.
a. A1 alarm value: also known as the first level alarm value. When the instrument detects a gas concentration higher than the A1 set value, it will simultaneously emit sound, light, and vibration alarms. The alarm value and type can be customized.
b. A2 alarm value: also known as the second level alarm value. When the instrument detects a gas concentration higher than the A2 set value, it will simultaneously emit sound, light, and vibration alarms. The alarm value and type can be customized.
c. Low concentration alarm value: When the instrument detects that the gas concentration is lower than the set value, it will simultaneously emit sound, light, and vibration type alarms. The alarm value and alarm type can be customized.
d. TWA alarm value: The instrument records measurement data every 10 minutes, with 48 pieces of data recorded within an 8-hour time period. When the average value of these 48 pieces of data is higher than the TWA alarm value set value, the instrument will simultaneously sound and light type alarms. The alarm value and alarm type can be customized.
e. S alarm value: The instrument records measurement data every other period of time, recording 15 pieces of data within a 15 minute time period. When the average value of these 15 pieces of data is higher than the set value of S alarm value, the instrument will simultaneously sound and light type alarms. The alarm value and alarm type can be customized.
Zero point setting of the four in one gas detector
A four in one gas detector is a flexible configuration of a single or multiple gas detector, which can be equipped with a combustible gas sensor and any two toxic gas sensors, or any four toxic gas sensors or any single gas sensor.
Zero point setting:
1. After turning on, press the power button to enter the menu page
2. Press the up and down keys to select menu items
3. Select zero point setting, click the power button to enter, select gas, and check if the number is 0
4. If the value is not 0, enter the zero adjustment from the menu, adjust the value to 0 by adding or subtracting items, and save.
