Biosystems MultiPro Reference Manual - →
12
MultiPro will prompt you to leak test the
pump.
Note: The sample probe assembly must
be attached when the pump is started.
→
Block the sampling inlet by placing a finger
over the end of the sample probe assembly.
Once the MultiPro
recognizes that the test
is passed, it will instruct
you to remove the
blockage.
Once the blockage is
removed, the MultiPro
will proceed to the current gas readings
screen.
If the instrument is unable to detect the
vacuum resulting from the pump blockage,
the test will fail and you will be directed to
remove the pump.
↔
For information concerning proper
attachment of the sample probe assembly to
pump-equipped MultiPro instruments, see
section 3.1.
2.2 Operating
Logic
Once the MultiPro has
completed the start up
sequence, the current gas
readings screen will be
shown. At the center of
the display is a heartbeat
that will “beat” every few
seconds to show that the
instrument is functioning
normally.
If the MultiPro is due for
fresh air/zero calibration,
the “0-Cal” will flash on the
LCD once every 5
seconds as a reminder. If
the MultiPro is due for
span calibration, the
calibration bottle icon will
be shown. Both “0-Cal”
and the calibration bottle
icon will be shown if the instrument is due for
both span and fresh air calibration.
When a sensor is not
detected, the reading in
the designated sensor
channel will be blank. In
the example at right, the
LEL sensor has not been
detected.
If the MultiPro recognizes
that the pump is
attached, “Pump” will be
displayed in the current
gas readings screen
The battery icon gives an
indication of how much power is left in the
battery. The illustration below shows the
stages of the battery from full to empty (top to
bottom).
Battery charge greater than
80%
Battery charge between 50%
and 80%
Battery charge between 25%
and 50%
Battery charge less than 25%
To turn on the backlight press the MODE
button once. To view the MAX readings
screen, press the MODE button a second
time. Press the MODE button a third time to
view the Short Term Exposure Limit (STEL)
readings. Press the MODE button again to
view the Time Weighted Averages (TWA) for
the operating session.
Note: The MultiPro must be in continuous
operation for at least 15 minutes before it
will be able to calculate the TWA values.
For the first 15 minutes of any operating
session, the screen will show the length
of time that the instrument has been
operating instead of the TWA values.
2.3 Turning the MultiPro Off
To turn the MultiPro off, press and hold the
MODE button until the display reads
“Release Button”. “Please wait” will be
shown briefly and display will go blank.