Getting Started
248083317-1 Rev 4 3-15
If the REMOTE-4PN is involved in a new installation, power should be OFF at
both ends, cables installed and power applied to the REMOTE-4PN then hub.
If power cannot be removed from the hub end, make sure the REMOTE-4PN
is powered OFF before
connecting the data cable.
Operation Understanding the LEDs
Note: The REMOTE-
4PN incorporates a pump
protection circuit that turns
the pump OFF if the Inlet
air supply is blocked. To
restore the instrument to
normal operation, clear the
obstruction, open the
cover, turn the switch OFF,
wait a few seconds and
turn the switch ON. The
pump should start.
The front-panel LEDs have specific meanings when illuminated.
Figure 3-21 shows location of the LEDs and gives a brief description of
their meaning.
Figure 3-21 Front Panel LEDs
• The green POWER LED turns on when the instrument is powered
on.
• The green FLOW LED turns on when the flow is within
specification (programmed parameters) and will blink when flow is
out of specification.
• The orange SERVICE LED will turn on and remain steady if Laser
power is out of range, the sensor optics are dirty, the view volume
contains foreign objects or the Calibration has come due on the
instrument. If calibration is due, the LED illuminates during
sampling mode until the instrument has been calibrated.
• The blue SAMPLING LED indicates the Sample mode is active.
Power
Flow
Sampling
Service
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