User Manual

Page 6 of 11
User manual – Wireless Gas Leak Detector, avolta
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[CONFIDENTIAL]
6. Alarms
Several alarms are integrated in the product: gas level, temperature level, battery or
electronics alarm.
Gas alarm
An alarm is triggered if the measured gas level goes above one of the three thresholds
programmed in the product: small leak, alarming leak, large leak. Note that the levels
can be reprogrammed using downlink commands.
Threshold
Default value
Consequence
Small leak
10%LEL
o Alarm message sent through LoRaWAN, with
acknowledge, every 5min
o Red LED blink + Beep + Pre-recorded message, every
minute
o Stops when gas level drops below threshold for >5
minutes and a LoRaWAN message is sent
Medium leak
20%LEL
o Alarm message sent through LoRaWAN, with
acknowledge, every 5min
o Red LED blink + Beep + Pre-recorded message, every
minute
o Stops when gas level drops below threshold for >5
minutes and a LoRaWAN message is sent
Large leak
50%LEL
o Alarm message sent through LoRaWAN, with
acknowledge, every 2min
o Red LED blink + Beep + Pre-recorded message, every
minute
o Stops when gas level drops below threshold for >5
minutes and a LoRaWAN message is sent
Temperature alarm
An alarm is triggered if the measured temperature rises at a rate superior or equal to
3°C every 2 minutes (=37F every 2 minutes).
Threshold
Default value
Consequence
T° rise
3°C / 2min
(37F / 2min)
o Alarm message sent through LoRaWAN, with
acknowledge, every 2min
o Red LED blink + Beep, every minute
o Stops automatically after 15 minutes
Battery/electronics alarm
The product is constantly self-testing itself, so if a problem is detected an alarm is
immediately raised.
Alarm type
LoRaWAN
Product
Low battery
Alarm message sent through
LoRaWAN, with acknowledge,
every 30min
Yellow LED blink, every minute
Beep, every minute
Electronics