Biosystems MultiPro Reference Manual - page 10
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active and functioning properly, “PUMP” is
displayed near the center of the LCD display.
Low flow or other pump fault conditions
activate audible and visible alarms and cause
the display of the appropriate explanatory
message.
1.7.1 Special precautions when using
the MultiPro pump
The internal material used in the MultiPro’s
pump diaphragm seal is susceptible to
temporary compromise by high levels of
combustible fuels and solvents. If the
MultiPro is being used in an atmosphere that
may contain concentrations of combustible
fuels and solvents that exceed 10% LEL, test
the pump frequently to ensure that the seals
have not been compromised.
To test the pump, block the sample inlet with
a finger. The pump should go into alarm. If
the pump fails to go into alarm while the inlet
is blocked, the pump is not working properly
and the MultiPro may not be providing an
accurate reading. If the pump test fails, the
safest course of action is to immediately
leave the affected area, and return only
after further testing determines that the
area is once again safe for entry.
Do not use the pump for
prolonged periods in an atmosphere
containing a concentration of solvent or
fuel that may be greater than 10% LEL.
1.8 Data
storage
The MultiPro includes a black box data
recorder and an event logger as standard
features.
1.8.1 Black box data recorder
A black box data recorder is a standard
feature in the MultiPro. The “black box” is
continually in operation whether the user is
aware of it or not. The black box stores
important information such as gas readings,
turn-on times, turn-off times, temperatures,
battery conditions, the most recent calibration
date and settings, types of sensors currently
installed, sensor serial numbers, warranty
expiration and service due dates, and current
alarm settings.
There is a finite amount of memory storage
available in the black box data recorder.
Once the memory is “full”, the MultiPro will
begin to write the new data over the oldest
data. The black box data recorder will store
approximately 41 hours of data in one-minute
increments before it begins to write new data
over the oldest data. In this way, the newest
data is always conserved.
To extract the information from the black box
data recorder, the MultiPro must be returned
to Biosystems. Once the data is downloaded
from the instrument, a report will be
generated. The unit and the report will then
be returned to the user. Simply call
Biosystems’ Instrument Service Department
to obtain a return authorization number.
There is no charge for the downloading
service, but the user is responsible for any
freight charges incurred.
The “black box” data recorder in the MultiPro
can be upgraded to a fully enabled
datalogger at any time. All that is required is
the activation code that corresponds to the
serial number of the MultiPro.
1.8.2 Event
logger
The event logger in the MultiPro stores data
associated with alarm conditions. Each
(alarm) event includes the following data for
each of the installed sensors: Sensor type,
Max reading, average reading, start time,
end time and duration of the event. The
MultiPro stores the 20 most recent events.
Once 20 events have been stored, the
MultiPro will begin to systematically overwrite
the data from the oldest event in memory
with data from new events. One event may
be a combination of different alarms
occurring simultaneously or in immediate
succession. The event logger may be
downloaded using Biosystems' BioTrak
software. The PC must be equipped with
IrDA to provide a connection.
1.9
MultiPro design components
1. Case: The instrument is enclosed in a
solid PC (polycarbonate) case with TPE
(rubber) overmold.
2. Front
face: The front face of the
instrument houses the MODE button,
LCD (liquid crystal display), LED alarm
light, IrDA port and audible alarm.
3. Display: A liquid crystal display (LCD)
shows readings, messages, and other
information.
4. Alarm
light: A top and front-mounted
LED (light emitting diode) alarm lights
provides a visual indication of alarm
state. The light emits a bright red light
when the instrument is in alarm.
5. Infrared
Port:
The infrared port is
located next to the MODE button on the
front face of the instrument. The infrared