Carbon Monoxide Alarm User Manual

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The numbers in this screen signify the session number
(0), the time the session was started and completed,
(12:37 - 14:54), the date of the monitoring session), and
the location identification number, (if one has been
assigned).
The "+" and "-" keys may be used to select another
session. (Remember, "0" is the most recent session, "1"
is the session before last, etc.)
Pressing the MODE button allows the peak readings from
session "0" to be viewed.
The instrument will automatically cycle between two peak
reading screens, one for oxygen, and one for the other
gases being measured. The oxygen peak reading screen
shows both the high (HI) and low (LO) readings.
Pressing the MODE button takes the screen back to the
monitoring session display.
6.3.3 Entering a monitoring location identification
number
It is possible, if desired, to assign an identification
number specifying the location where a particular
monitoring session occurred. This may be done while in
any of the normal operating modes (Text Only, Basic, or
Technician).
While monitoring in the normal gas reading screen, press
the "+" key to enter the location identification number
assignment screen.
The "+" and "-" keys are used to enter the identification
number.
6.3.4 Downloading recorded data to a
computer
PhD
2
record keeping capabilities are most useful when
used together with the Biosystems Personal Computer
(PC) Based Gas Detector Database software.
To interface the PhD
2
with a computer it is necessary to
purchase a Biosystems Computer Link Kit (Biosystems
part number 1698).The Biosystems link kit includes
database software, interface cable, and instructions for
use.
Make sure the PhD
2
is turned off. Connect the computer
interface cable between the dual purpose battery charger
/ RS232 connector located on the side of the PhD
2
case
and "COM port 1" of your computer.
Note: It is important that the instrument is turned off
before being connected to the interface cable in order
to avoid potential damage or data loss due to static
electrical discharge.
Enter the Record Keeping Data Transfer mode by turning
the PhD
2
on while holding down the "-" (The unit must be
in the Technician mode prior to being turned on.) The
Record Keeping Data Transfer screen will briefly appear.
The record Keeping Data Transfer screen is followed by
another screen used to choose whether the data is to be
downloaded directly to the PhD
2
screen, or to be
downloaded via the RS-232 port to a computer.
Press the "-" button to download data through the RS 232
port. This screen will be followed by the Data Transfer
screen. Pressing the MODE button initiates data
downloading.
Pressing the MODE button at any time during the
downloading process terminates the transmission.
When downloading has been completed, the screen will
display the message:
6.3.5 Clearing data from PhD
2
memory
after downloading to P.C.
To erase the information stored in the PhD
2
record
keeping file, use the following simple procedure.
Immediately after the "Uploading to PC completed"
message appears, press the "Cal" button. You will have
two seconds before the unit returns to normal operation.
If the "Cal" button is depressed within the allotted time-
frame, the following screen will be displayed:
Press the "alarm" button to clear data. You will have two
seconds to do so before the clear data function is
canceled and the unit resumes normal operation.