BW Technologies GasAlertQuattro 1, Краткое руководство пользователя

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GasAlertQuattro
European Performance Approval
Oxygen deficient atmospheres (<10% v/v) may suppress some
sensor outputs.
Daily bump test: To comply with performance requirements for
European certification, a bump test must be completed before
each day’s use.
Calibration: To minimize measuring errors, the ambient
conditions of temperature, humidity, and pressure during
calibration should be as close as possible to the actual
environmental conditions in which the instrument is intended to
be used.
Calibration interval: If the detector is to be used in
atmospheres which may contain compounds known to interfere
with, inhibit, or poison the sensors, the calibration intervals
must be specified to take into account the possibility of a rapid
loss in measurement sensitivity.
See page 7, Sensor Poisons
and Contaminants .
Sensor impairment : Some types and concentrations of dust in
the monitored atmosphere may impair the measuring function
of the gas detector. Cross-sensitivities described in the sensor
manufacturer’s data sheet must be considered.
Response time verification: Before use, confirm that the gas
detector’s response time is fast enough to trigger alarms so that
unsafe situations are avoided. If necessary, set the alarm levels
below the standard safety-related limit values to allow enough
time for protective measures to be carried out.
Instrument configuration: FleetManager II version 2.6.0 (or
higher) must be used to make configuration changes to the
GasAlertQuattro.
To conform with configuration requirements for European gas
performance:
• 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.
When detectors are configured using FleetManager II, BW
strongly recommends that detector settings are reviewed prior
to operation to ensure that they have been applied successfully
and comply with performance requirements.
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CAUTION
Do not use for gas detection while connected to a PC.
Special conditions for safe use - oxygen measurement
Performance approval:
The EC type examination certificate
applies to the measurement of oxygen up to 25% (v/v).
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