Modular design, replaceable sensors modules. Automatic reminder when the sensor's lifespan expires, no calibration or maintenance required, data storage records can be checked, infrared remote operation to avoid exposure to harmful gases.
1. Main Function Overview: Three way relay, multiple communication methods, sound and light alarm, alarm recording, time display, infrared remote control
2. Interactive Function:
1) Infrared remote control: address, alarm value, calibration value, test value support digital key input;
2) Time: Real time display with an error within 30 seconds;
3) Relay: Three way (220V, 5A) normally open relay output
2. Settings:
1) Internal settings: Gas type, gas unit, gas range, sensor range can be set;
2) Address setting: The address value can be any value between 1-255;
3) Alarm settings: switchable alarm types, set low and high limit values;
4) Time setting: Set the current time to better record operating conditions.
3. Zeroing, calibration, and testing:
1) Zeroing: Enter the zeroing interface to perform zeroing
2) Calibration: Upon entering the calibration interface, you can use the up and down keys to fine tune the calibration values, or enter numerical values using the numeric keypad;
3) Testing ① 0 value (i.e. 4mA); ② Select the range and conduct tests at 0.2, 0.4, 0.6, 0.8, and 1x; ③ Adjust the current value by pressing the up and down keys
https://www.vedardsecurity.com/gas-h2s-alarm-explosion-proof-toxic-gas-detector-p-27
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