Biosystems MultiPro Reference Manual - →
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2.4.6 Sensor over range alarms
The MultiPro will go into alarm if a sensor is
exposed to a concentration of gas that
exceeds its established range. In the case of
an LEL reading that exceeds 100% LEL, the
LEL channel will be automatically disabled by
the instrument and the alarm will latch
(remain on) until the instrument is turned off.
The MultiPro must be turned off, brought to
an area that is known to be safe (containing
20.9% oxygen, 0% LEL and 0 PPM toxic
gases), and then turned back on. The
display will show “---“ and “OL” alternately in
place of the sensor reading for any channel
that has gone into over range alarm.
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A combustible sensor
overrange alarm indicates a potentially
explosive atmosphere. Failure to leave
the area immediately may result in
serious injury or death!
In the event of an LEL
overrange alarm the MultiPro must be
turned off, brought to an area that is
known to be safe
(containing 20.9%
oxygen, 0% LEL and 0 PPM toxic gases),
and then turned on again to reset the
alarm.
2.4.7 LEL failure due to lack of oxygen
alarm
The LEL sensor in the MultiPro requires a
certain amount of oxygen to function
properly. When oxygen levels fall below 11%
by volume, the MultiPro will show “---“ in
place of the LEL reading and display “O2”,
“too” and “Lo” in successive screens in the
location typically used for the LEL reading.
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2.5
PC connection via infrared
port
MultiPro instruments that
are equipped with a fully
enabled datalogger can be
downloaded to a PC using
Biosystems BioTrak or IQ
software through the
MultiPro’s infrared port. For the location of
the infrared port, see the illustration below.
1. With the MultiPro turned off, hold the
MODE button down until four beeps are
heard. Depending on the software
version, this will normally take between
10 and 20 seconds. “PC Connect” will be
shown once the infrared port has been
activated.
2.
Align the infrared port on the MultiPro
with the PC’s infrared port to complete the
connection.
Note: For further instructions
concerning the download procedure for
the MultiPro, see the BioTrak or IQ
System manual as appropriate.
2.6 Error
Messages
The MultiPro will display error messages
when it detects certain problems during
operation.
MULTIPRO Error definitions
Error Display
Number
Unit Memory Bad
003
O2 Memory Bad
004
LEL Memory Bad
005
CO Memory Bad
006
H2S Memory Bad
007
DataloggerMemory 008