MAN0597 ISSUE 08 - 02/04
2302M5030
12. APPENDIX B
108
up to 50 ppm H
2
S, Carbon Dioxide up to 3 % CO
2
and
Oxygen up to 25 % (based on the use for monitoring the
atmosphere of oxygen deficiency and enrichment), if it's
properties and design conform to the documents listed in
the test reports PFG-No. 41300502P and PFG-No.
41300502P NI if it is used accordingly and if the following
conditions are met:
• The operating (manual) presented and approved by EXAM
is to be followed in detail. It is essential that the instructions
for correct use are followed.
• Prior to operating the gas detector it has to be checked
whether the response times are sufficiently low, so that
alarms triggered by the apparatus are generated as fast as
possible so that, critical situations can be avoided. If
necessary, the alarm levels need to be set well below the
safety related limits.
• A calibration for the instrument with a measuring range of
0-3 % CO
2
must only be performed at temperatures
>10°C.
• A permanent displayed value of -0.0 in the measuring
range of 0 - 3 % CO
2
requires an immediate calibration of
the instrument.
• The first alarm level (A1) in the measuring range of 0 - 3 %
CO
2
must not exceed 0.5 % CO
2
.
• For the measuring range 0 - 3 % CO
2
the STEL and LTEL
time weighted average values may exceed the true values
due to the behaviour of the sensor.
• It should be noted that sampling of oxygen deficient gases
using the integrated pump could result in values measured/
displayed being slightly higher than permitted.
• When extracting gases with the integrated pump in
combination with additional probes the increased response
time of the sensors needs to be taken into consideration.
To Next Page
Loading...
