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GasAlertQuattro
ATEX Performance Approval
Instrument configuration: FleetManager II version 2.6.0 (or
higher) must be used to make configuration changes to the
GasAlertQuattro
Special conditions for safe use - oxygen measurement
To operate the instrument in accordance with ATEX gas performance configuration requirements:
• Latching alarms must be enabled. See page 16.
• Stealth mode must be disabled. See page 17.
• Force Bump must be enabled. See page 12.
• Bump Interval (days) must be set to 1 for all sensors.
• IntelliFlash must be enabled. See page 17.
• LEL Low Alarm and High Alarm values cannot be 0.
Baseline and span zone blanking: Please note that oxygen
measurements in the range from 20.5% (v/v) up to 21.3% (v/v)
are indicated as “20.9%” oxygen on the instrument display.
Measurement values in the range within ±0.2% (v/v) of the span
gas concentration are displayed as the span gas concentration.
For example, if the span gas concentration (used for oxygen
bump testing) is configured as 18% (v/v), measured values in
the range of 17.8% (v/v) to 18.2% (v/v) will be indicated as
“18.0%” oxygen on the instrument display.
Performance approval: The EC type examination certificate
applies to the measurement of oxygen up to 25% (v/v).
Oxygen measurement performance as tested by BAM
Oxygen response time t90: 15 seconds for oxygen deficiency
Oxygen response time t90: 15 seconds for oxygen enrichment
Measurement stabilization time: ≥ 120 seconds
Instrument warmup time: 32 seconds
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