1. Some compounds may reduce the sensitivity of the combustible gas sensor by poisoning or inhibiting the catalytic
action or by polymerizing on the catalytic surface.
2. These conversion factors should be used only if the target gas is known.
3. These conversion factors are typical. Individual units may vary by ±25 % from these values.
4. The results are intended for guidance only. For the most accurate measurements, a device should be calibrated using
the target gas.
4.3 Device Compliance
4.3.1 Bump Test Lock-Out
To promote compliance with bump test requirements, the device can be configured to not enter standard measurement
mode until the device has been bump tested per the Grid-configured schedule. In the lock-out state, a reminder notification
will sound every 15 seconds, flash the Safe LED, and vibrate. Once a bump test is complete, the device will fully turn on.
4.3.2 Calibration Lock-Out
To promote compliance with calibration requirements, the device can be configured to not enter standard measurement
mode until the device has been calibrated per the Grid-configured schedule. In the lock-out state, a reminder notification will
sound every 15 seconds, flash the Safe LED, and vibrate. Once a calibration is complete, the device will fully turn on.
4.3.3 Device Assignment Lock-Out
To promote device assignment to worker, the device can be configured to not enter standard measurement mode until the
device has been assigned to an MSA id Tag. In the lock-out state, a reminder notification will sound every 15 seconds, flash
the Safe LED, and vibrate. Once the device has been assigned, the device will fully turn on.
4.4 Enhanced Safety Features
4.4.1 Motion Detection
The device can monitor worker movement if enabled through Grid. If the device detects no movement beyond the Grid-
configured threshold, the device will warn the user to check-in with the Alert button.
If the warning is not acknowledged within the configured acknowledgment threshold, the device will escalate into alarm.
4.4.2 Worker Emergency
The device can be put into emergency alarm on command by pressing the Alert button for 3 seconds.
4.4.3 Remote Evacuation
Through Grid, devices can be remotely notified to evacuate. When activated from Grid, devices will enter alarm state. See
Alerts for more information.
4.5 Device Configuration Profile
The ALTAIR io 4 is highly configurable to meet the needs of your safety program. Device configuration profiles can be
created, selected, and saved through your Grid account. These configuration profiles can be applied and kept in sync with
desired devices directly through Grid’s web application or through the mobile app. When a configuration profile is pushed to
selected devices, the new configuration is immediately applied if powered on with a cellular connection, or if powered off it
will be applied at next power on with a cellular connection.
31 ALTAIR io 4
US 4 Features
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