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Gas sensors in API 6

Any gas monitoring sensor works in one mode - Gas monitoring. As of now, we have CH4 sensors available with more on the way.

Overview

Gas sensor functionality:

  1. There is one User mode that works with gas: Gas monitoring. You can find an overview below.

  2. You cannot receive independent alerts from the gas sensor.

User modes

Gas monitoring

This mode works with both gas thresholds and periodic records. You can set up both at the same time or just one of these.

Relevant registers

Register hex Register name Value range What it is and what it does Useful for
0xA0 Periodic gas monitoring aggregation 1, 2, 3, 6 Number of new gas records to be sent in one periodic message. Gas monitoring
0xA1 Gas monitoring measurement interval SimpleTime How often the processor wakes the sensor up and asks for data input - how often the sensor measures. Gas monitoring
0xA2 Gas threshold A 0-25 500 ppm An alert is sent when this threshold is sent either way. Value x100 in ppm. Gas monitoring
0xA3 Gas threshold B 0-25 500 ppm An alert is sent when this threshold is sent either way. Value x100 in ppm. Gas monitoring
0xA4 Gas monitoring hysteresis 0-25 500 ppm Gas hysteresis. If the measured value hovers around a threshold, it will be ignored until the difference is at least the hysteresis. Value x100 in ppm. Gas monitoring
0xA5 Gas sensor warm up time SimpleTemp How long it takes for the sensor to warm up and return precise values, default 1 minute. Gas monitoring