Biosystems MultiPro Reference Manual - ↔
24
7. Reassemble the MultiPro and allow the
new sensor to stabilize as described in
steps 6-8 in section
5.4.1.
8. When the instrument
restarts for the first
time, the CF screen will
be shown.
9. Press the MODE button
to advance the CF
value until the correct
value is shown.
10. Once the correct CF
value is shown, press
and hold the MODE button until “release
button” is shown, followed by “Accept”
with a countdown.
↔
11. Press the MODE button before the
countdown concludes to enter the new
setting. Failure to accept the setting will
lead to instrument shutdown and re-
queue at the CF screen at next startup.
12. Perform both the Fresh Air/Zero
calibration and the Span calibration as
discussed above in sections 4.2 and 4.3.
5.5
Sample probe assembly
The MultiPro’s sample draw probe is the
standard probe assembly from Biosystems.
The illustration below gives a breakdown of
all parts in the sample draw probe with part
numbers. The sample probe handle contains
moisture barrier and particulate filters
designed to remove contaminants that might
otherwise harm the instrument.
CAUTION: Never perform remote
sampling without the sample probe and
hose assembly. The sample probe handle
contains replaceable filters designed to
block moisture and remove particulate
contaminants. If the pump is operated
without the probe assembly in place,
contaminants may cause damage to the
pump, sensors and internal components
of the MultiPro.
Particulate contaminants are removed by
means of a cellulose filter. The hydrophobic
filter includes a Teflon
™ barrier which blocks
the flow of moisture as well as any remaining
particulate contaminants.
Sample probe filters should be replaced
whenever visibly discolored due to
contamination.
5.5.1 Changing sample probe filters
The threaded sample probe handle is
accesses the filters. The particulate filter is
held in place by means of a clear filter cup.
To replace the particulate filter, remove the
old filter and cup, insert a new filter into the
cup, and slide the cup back into place in the
probe handle. The hydrophobic barrier filter
fits into a socket in the rear section of the
probe handle. (The narrow end of the
hydrophobic barrier filter is inserted towards
the rear of the handle.)
To avoid accidentally introducing particulate
contaminants into the system, turn the
sample probe upside-down prior to removing
either the hydrophobic filter or the particulate
filter.
The following replacement filter kits are
currently available from Biosystems:
Part No.
Kit
#Partic-
ulate
#Hydro-
phobic
54-05-K0401 Standard 10
3
54-05-K0402 Economy 10
0
54-05-K0403 Economy 30
10
54-05-K0404 Bulk
0
25
54-05-K0405 Bulk 100 0
5.5.2 Changing sample probe tubes
(wands)
The standard 11.5” long butyrate probe tube
is held in place with a hex-nut compression