MSA Orion plus Manual De Operación página 10

above 100% LEL and an explosion hazard exists. In such cases,
the instrument LockAlarm feature activates. Move away from
contaminated area immediately.
• Do not use the Orion plus Multigas Detector to detect
combustible dusts or mists.
• Do not use the Orion plus Multigas Detector to test for
combustible or toxic gases in the following atmospheres as this
may result in erroneous readings:
• Oxygen-deficient or oxygen-rich atmospheres
• Reducing atmospheres
• Furnace stacks
• Inert environments
• Atmospheres containing combustible airborne mists or
dusts.
• Do not use the Orion plus Multigas Detector to test for
combustible gases in atmospheres containing vapors from
liquids with a high flash point (above 100°F) as this may result
in erroneously low readings.
• Do not block pump inlet as this may cause inaccurate
readings. Do not press on the face of the sensors, as this may
damage them and cause erroneous readings. Do not use
compressed air to clean the sensor holes, as the pressure may
damage the sensors.
• Allow sufficient time for unit to display an accurate reading.
Response times vary based on the type of sensor being used
(see Chapter 7, "Performance Specifications"). Additionally,
when using a sampling pump, allow a minimum of 0.7 seconds
per foot of sample line to allow the sample to be drawn through
to the sensors.
• Keep the probe tip above liquid surfaces; otherwise, liquid may
enter the system and block the sample flow, causing
inaccurate readings and/or internal damage.
• All instrument readings and information must be interpreted by
someone trained and qualified in interpreting instrument
readings in relation to the specific environment, industrial
practice and exposure limitations.
• Recharge NiMH battery-pack in non-hazardous areas only. Use
only battery chargers listed in this manual; other chargers may
damage the battery pack and the unit. Dispose of batteries in
accordance with local health and safety regulations.
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