Biosystems MultiPro Reference Manual - 6. Direct
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fitting and compression sleeve. The
standard probe tube can be interchanged
with other custom length sections of 1/4” OD
tubing, or probe tubes made of other
materials (such as stainless steel).
Probe tubes are exchanged by loosening the
hex-nut compression fitting, removing the old
tube, sliding the compression sleeve into
place around the new tube, inserting the new
tube into the probe handle, then replacing
and tightening the hex-nut.
Note: The sample probe must be checked
for leakage (as discussed in Section 3.1.1)
whenever filters or probe tubes are
exchanged or replaced before being
returned to service.
5.6
MultiPro Pump Maintenance
MultiPro pumps are fairly maintenance free
with the exception of the replacement of the
pump filters on a regular basis.
5.6.1 Replacing pump filters
1. Remove the two screws that hold the
inlet port to the pump.
2. Gently pull the dust filter holder free of
the pump
3. Remove and replace the dust filter that is
located in the holder.
4. The hydrophobic filter is located beneath
the inlet port in the pump housing. Use a
small screwdriver or other object to
punch through the filter and remove it.
The gasket that sits between the inlet
port and the filter should come out with
the filter.
5. Place the new hydrophobic filter filter
side down in place of the one removed in
step 4. The gasket should be located on
top of the filter and should sit against the
dust filter holder, which will be reinstalled
in step 6.
6. Replace the dust filter holder (which now
has a new filter in it) and secure it with
the two screws removed in step 1.
6. Direct
programming
In the event that an instrument setting needs
to be changed in the field and a PC with the
appropriate software is not available, the
MultiPro can be programmed directly with the
MODE button.
Reprogramming the
MultiPro is reserved for authorized
personnel. Inappropriate changes made
in the Advanced Menu may lead to
inaccurate and potentially dangerous
readings.
6.1
Entering the Advanced Menu
To enter the “Advanced Mode”, turn the
MultiPro off. Then turn the
MultiPro back on, but instead of
releasing the MODE button,
continue to hold it. The “PC
Connect” screen will be shown
in approximately 6 seconds.
Continue to hold the MODE
button for about 5 additional
seconds until the “Config”
screen is shown. Release the
MODE button as soon as
“Config” is shown.
The screen will show 6 sets of
dashed lines.
Once the screen with the six
dashed line is shown,
immediately click the MODE
button three times within three
seconds to enter the
Configuration Menu. “Setup”
will be shown.
After a few seconds, the
“Setup” screen will be replaced
by the “Set Options” screen and will proceed
to automatically scroll to a new screen every
5 seconds. The “Set Time” screen will follow
the “Set Options” screen, which will then be
followed by the “Set Date”, “Set Alarms”, “Set
Cal Gas” and the “Set Cal Due” screens
before returning to the “Set Options” screen.