Hanna Instruments HI 4321 User Manual

Page 56

PC INTERFACE

Data transmission from the instrument to the PC can be done with the HI 92000 Windows

compatible

software (optional). HI 92000 also offers graphing and on-line help feature.
Data can be exported to the most popular spreadsheet programs for further analysis.
HI 4321 instrument has two available serial interfaces: RS232 and USB. The desired serial interface can be

selected from the settings window of the HI 92000 software.
If choosing the RS232 serial interface, use the optional Hanna HI 920010 cable connector to connect your

instrument to a PC. Make sure that your instrument is switched off and then plug one connector to the

instrument RS232 socket and the other one to the serial port of your PC.

Note: Other cables than HI 920010 may use a different configuration. In this case, communication between

instrument and PC may not be possible.

If choosing the USB serial interface, use a standard USB cable to connect your instrument to the PC.
For both serial interfaces, make sure that the instrument and the HI 92000 software have the same baud rate

and the appropriate communication port.

MEASURE
Rinse the conductivity probe with distilled water. Immerse the tip (bottom 4 cm /1½”) in the sample and

stir gently for a few seconds.
For a faster response and to avoid cross-contamination of the samples, rinse the probe with a few drops of the

solution to be tested, before taking measurements.
PERIODIC MAINTENANCE
Inspect the probe and the cable. The cable used for connection to the instrument must be intact and there must

be no points of broken insulation on the cable. Connectors must be perfectly clean and dry. Rinse off any salt

deposits with water.
If more cleaning is required, remove the probe sleeve and clean the probe with a cloth or a nonabrasive

detergent. Make sure to reinsert the sleeve onto the probe properly and in the right direction. After cleaning

the probe, recalibrate the instrument.
The platinum rings are sustained with glass. Take great care while handling the probe.

IMPORTANT: After performing any of the cleaning procedures, rinse the electrode thoroughly with distilled water.

PROBE CONDITIONING & MAINTENANCE