Aerosol Photometer
Aerosol Photometer - 2i 24
Always check the lint screen in both sampling ports before
using the instrument (see “Maintaining the Photometer”
page 61 for the procedure).
i
Note
When using the iProbe with the 2i, the probe should be
connected to the photometer before the power is turned on.
Otherwise the iProbe display will show the following
message until the main unit has reached the running mode:
“Waiting for User to complete current Base operation”
Connecting the Interface Ports
The 2i comes equipped with two standard Interface
Ports: a USB port and a printer port.
USB Port
The USB port is intended to interface with a computer
to provide serial data acquisition capability. The port
connection requirements are described in the
following table.
Table 1: Serial Port Settings
Setting Value
Transfer Speed 9600
Data Bits 8
Stop Bits 1
Parity Control N
Flow Control None
Printer Port
A 5-pin mini-din circular connector provides the
interface with the optional thermal printer. The
connector is keyed to prevent connection mistakes.
To connect, orient the arrow toward the top and insert
the connector in the receptacle.
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