11
Setup
Determining Pump Operating States
RUN
• The pump is sampling and run time data is updated continuously in memory.
HOLD
• The pump is not sampling and run time data is stored. Hold displays on
the LCD.
• Temperature and back pressure readings are still active and shown on the
LCD.
FLOW FAULT ( )
• If the pump is unable to compensate for longer than 15 seconds due to
excessive back pressure, the pump enters FLOW FAULT mode and the flow
fault icon displays on the LCD.
• The pump goes into HOLD mode and the accumulated run time display is
frozen and retained.
• The pump attempts to restart sampling after five minutes in flow fault and
continues to attempt a restart every five minutes thereafter until the flow is
corrected or the user removes the pump from flow fault mode by pressing
[
].
SLEEP
• The LCD shuts down and the electronic circuitry enters a low power state. The
pump automatically enters SLEEP mode after five minutes in HOLD unless
the battery charger is plugged in or a keypad button is pressed.
FAIL
• A fault state in which the battery capacity is insufficient to run the pump motor
(
see FAIL Display on page 7
)
• FAIL displays on the LCD as part of the data display. Press
to scroll to the
FAIL display.
To change the pump from HOLD to
RUN, press
[
].
To change the pump from RUN to
HOLD, press
[
].
To change the pump from SLEEP to
HOLD, press any button.
Flow Fault Indicator
The time the pump is in Flow
Fault mode is not added to run
time or cumulative volume.
