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IV. NON-NORMAL OPERATION
If either the batteries or the generating cell become depleted, or the
generating cell is removed from the CAL-101, the instrument enters a non-
normal operating condition
Under a low battery condition, the RED LEDs will begin to flash. If the low
battery condition occurs during power up, the RED LEDs will flash dimly
for approximately 10 seconds and then the instrument will power down. If
the low battery condition occurs after start up, the instrument will simply
power down. It is recommended to replace depleted batteries with two "AA"
heavy duty Alkaline batteries for maximum operating life.
If the cell becomes depleted either at start or during calibration, the GREEN
LEDs will begin to 'ramp' up and down from max to min until the cell is
removed. No gas generation will occur during this cell depleted indication.
If there is an error in cell communication when inserted all green LED's
will come on constant indicating a cell failure. Remove the cell and wait for
all LED's to turn off then reinsert the cell ensuring proper alignment of the
pins. If the error continues check the pins and corresponding pads on the
cell for corrosion and attempt cleaning.
If the cell has been depleted, it should be removed and replaced with
a new generating cell. Please refer to the section on cell life for proper
instructions on replacing the generating cells. If the cell has not been
depleted, there may be a faulty electrical connection between the cell and
the instrument. Remove the cell and inspect the pins protruding from the
pump board and the corresponding pads on the cell board. Remove any
debris and or corrosion that may be present and reinsert the cell ensuring
proper alignment. If either the pins become damaged or non-repairable,
the pump board should be replaced..
The rate of airflow through the instrument is critical for accurate gas
concentrations. The flow should be adjusted to 0.5 LPM (liters per minute)
STP (standard temperature and pressure) of sea level and 20
o
C. (see chart
in section VI) To trim the flow hold the magnetic screw driver over the ‘flow
trim’ area of the instrument indicated with a magnet symbol. The GREEN
LEDs will begin flashing at a once per second rate indicating the relative
power to the pump. As you hold the magnet over this area the pump will
continue to increase in speed (The LEDs will ramp up indicating the relative
power) until the magnet is removed. When the magnet is reapplied
