Oldham BM25, Руководство по эксплуатации

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9
6.1. Operating instructions
The operator can:
•
Gas detector mode: place the gas detector in the working area and let the BM25
monitor the atmosphere.
•
Sampling mode: take regular measurements by means of a sampling system (manual
or electrical).
6.2. Electrical pumping system
The BM25 gas detector can be optionally equipped with an integrated electrical pump, powered
directly from the gas detector’s battery pack.
Pump drainage is between 18 and 25 1/h
NOTE: After each use of the electrical pump, check the watertightness by obstructing the end of
the sampling line until the draining alarm is triggered.
6.3. Manual pumping system for manual and electrical pump
It consists of a cover, a horn bulb, a probe and a connecting line.
6.4. Different probes
Manual or electrical sampling systems can be equipped with various probes.
-
Rigid probe
-
Semi- rigid probe
-
Telescopic probe
CAUTION: Flexible probes, horn bulbs and certain rods are not antistatic. The operator
must take the necessary precautions to avoid electrostatic discharges, and, in any event, must
prevent any hazardous discharge through a metallic probe.
6.5. Gas detector mode
The BM25 must be positioned vertically.
Depending on the type of gas to be detected or likely to be present, the instrument must be placed:
•
On the ground for detection of heavy gasses (density > 1)
•
At medium height (approx. 1 m.) or in an outlet nozzle for a general detection of a
maximum of gases or for oxygen monitoring.
•
Optionally, the gas detector can also be used on a tripod to be more visible from
different areas.