Hanna Instruments mV 600 Series - Manual (Page 13)

25 24
RS232 COMMUNICATION AND DATA LOGGING
All models pH 500XY2 and mV 600XY2 are provided with an
RS232 port.
Data transmission from the instrument to the PC is possible
with the HI 92500 Windows
® compatible software by HANNA
instruments. The user-friendly HI 92500 offers a variety of
features such as logging selected variables or plotting the
recorded data. It also has an on-line help feature to support
you throughout the operation.
HI 92500 makes it possible for you to use the powerful means
of the most diffused spreadsheet programs (Excel
© , Lotus
1-2-3 © etc.).
Simply run your favorite spread sheet and open the file down-
loaded by HI 92500. It is then possible to elaborate the
data with your software (e.g. graphics, statistical analysis).
To install HI 92500 you need a few minutes: just insert the
installation CD into the PC and the software menu window
should start automatically (if it does not, go to the main CD
folder and double-click “setup.exe”). Click “Install software”
and follow the instructions.
Contact your HANNA Dealer to request a copy.
ELECTRICAL CONNECTIONS
To connect your HANNA meter to a PC use an HI 920010
cable.
Make sure that your meter is switched off and plug the con-
nectors, one to the meter RS232 connector and the other to
the serial port of your PC.
If your interface does not fully comply with the RS232 stan-
dard, wiring could be different.
The GND pin of the interface connector and all the inter-
face signals are optoisolated from the ground of the
instrument, the pH electrode and the temperature sensor.
Before connecting the meter to the computer, consult the com-
puter manual.
These values can be changed by the user to have the analog
output matches a different pH range, for example, 4 mA =
3.00 pH and 20 mA = 5.00 pH.
To change the default values, the setup mode must be en-
tered. Setup codes for changing the analog output minimum
and maximum are 41 or 42, respectively. For the exact
procedure, refer to the setup mode section in the manual.
Note The difference between maximum and minimum values for
the analog output must be at least 1.00 pH or 50 mV.
Note The analog output is factory calibrated through software. The
user may also perform these calibration procedures following
the procedure at page 36. It is recommended to perform the
output calibration at least once a year.