Honeywell GasAlertQuattro Operator's Manual page 36

LEL correction factors: Detector operation using LEL
correction factors has not been tested by BAM
Changing measurement range from % LEL to % Vol.: If
changing the measurement unit from % LEL to % Vol. or from
% Vol. to % LEL, a calibration must be completed and the alarm
setpoints changed. For calibration information refer to
Calibration on page 10 and for alarm setpoint information refer
to Gas Alarm Setpoints in the GasAlertQuattro Technical
Reference Guide.
Measuring values from -6% LEL to +3% LEL are indicated as
"0% LEL" in the measuring mode. Measuring values in the ±3%
LEL ranges of the configured span gas concentration are
indicated as the configured span gas concentration.
Special Conditions for Safe Use
When used in accordance with BAM certificate
BAM/ZBF/010/12, the GasAlertQuattro complies with
EN 45544. The following special conditions are in addition to
those already stated in the manual for O
1.
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and LEL.
2
Measuring ranges:
a) The Type Examination Certificate applies to
the measurement of:
• carbon monoxide in the measuring range
from 0 ppm to 500 ppm
• hydrogen sulphide in the measuring range of
0 ppm to 100 ppm
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GasAlertQuattro
European Performance Approval
b) The overall indicating ranges are:
• carbon monoxide: 0 ppm to 1,000 ppm
• hydrogen sulphide: 0 ppm to 200 ppm
2. Carbon monoxide measuring values from -5.0 ppm to
+8.9 ppm and hydrogen sulphide measuring values
from -1.4 ppm to +1.4 ppm are indicated during
operation as 0 ppm.
3. H S over ranging is shown on the display above
2
200 ppm H S as +OL. CO over-ranging above
2
1,000 ppm CO is indicated as +OL.
4. Sensor cross-sensitivities shall be considered. For
further information, contact BW Technologies by
Honeywell or an authorized agent.
5. Some types and concentrations of dust in the
measured atmosphere may impair the measuring
function of the gas detector.
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