Verifying Pump Operation; Warning - MSA Orion plus Mode D'emploi

Verifying Pump Operation

1. Turn ON the Orion plus Multigas Detector.
• The pump motor starts fast and then slows down as the
instrument adjusts the power to run the pump.
2. Once gas readings are displayed, plug the free end of the
sampling line or probe.
• The pump motor shuts down and an alarm sounds.
• The 'Heartbeat' stops circling and displays a "P" in the circle
• A clear message appears in the display with 'on-line'
instructions
• The readings on the display may change.
3. When the pump inlet, sample line or probe is blocked, the pump
alarm must activate. If the alarm does not activate:
a. Check the pump, sample line, and probe for leaks.
b. Once leak is fixed, recheck pump alarm by blocking the flow.
4. Check the pump before each day's use.
Do not use the pump, sample line, or probe unless the pump
alarm activates when the flow is blocked. Lack of an alarm is
an indication that a sample may not be drawn to the sensors,
which could cause inaccurate readings. Failure to follow the
above can result in serious personal injury or death.
Never let the end of the sampling line touch or go under any
liquid surface. If liquid is sucked into the instrument, read-
ings will be inaccurate and the instrument could be dam-
aged.
5. Press the RESET button to reset the alarm and restart the pump.
During operation, a pump alarm may occur when the:
• Flow system is blocked
• Pump is inoperative
• Sample lines are attached or removed.
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