Interface connections and data memory – YSI 9500 Photometer User Manual
Page 9
9
USB
The USB interface allows communication between the instrument and a PC.
There is a choice of two operating modes – Hard Drive and COM Port.
In Hard Drive mode, the instrument appears as a removable hard drive when
connected to a PC. No additional software is required on computers running
Windows 2000, ME or XP. Windows 98SE driver may be available from
.
In COM Port mode, the instrument behaves as if connected to the PC serial
port via RS232. In this mode, the PC requires installation of a USB virtual COM
Port driver, available from
See the section on ‘Interface Connections and Data Memory’ below for full instructions.
INTERFACE CONNECTIONS AND DATA MEMORY
Stored data can be accessed by recall to the screen (see ‘View Log’).
Alternatively, data can be accessed using a PC :-
• Connect the instrument to the computer via the USB port using a USB
cable.
• Turn the instrument ON and select SYSTEM mode from the ‘Options’ menu.
• Scroll to ‘USB’ and select either ‘Hard Drive’ or ‘COM Port’.
‘Hard Drive’ – Once this option is selected, simply turning the instrument ON
while it is connected to a PC will cause an extra hard drive containing the
instrument files to appear on the PC. The log of test results is in text file –
‘9500_LOG.txt’. The other files shown on screen contain calibration and operating
systems for use when upgrading the instrument and should be ignored.
The log file can be copied from the instrument by dragging between windows
and once copied can be opened with many text editors, word processors or
spreadsheet programs.
Note: Deleting this file from the instrument’s hard drive will clear the
data from the instrument memory.
‘COM Port’ – Once this option is selected, data can be downloaded from the
instrument to the PC :-
• Open the ‘Virtual COM Port – HyperTerminal’ window on the computer.
• In
the
instrument
SYSTEM mode, scroll to ‘View Log’ and select ‘Download’.
The data from the log will appear on the PC screen and can be transferred to
Windows’ applications or printed as required.