52
PC INTERFACE
PC INTERFACE
PC INTERFACE
PC INTERFACE
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 4421
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.
The oxygen probe is made of reinforced plastic for maximum durability. A thermistor
temperature sensor provides temperature measurements of the sample. Use the protective
cap when not in use.
To replace the membrane or refill with electrolyte, proceed as follows:
Remove the protective cap by gently twisting, and pulling and pulling it off the body of the
probe (see fig. 1).
Unscrew the membrane cap by turning it counterclockwise (see fig. 2).
Wet the sensor by soaking the bottom 2 cm (1’’) of the probe in electrolyte for five minutes.
Rinse the new membrane cap, supplied with the meter with electrolyte solution while
shaking it gently. Refill with clean electrolyte solution.
Gently tap the sides of the membrane cap with your finger tip to ensure that no air bubbles remain
trapped. Do not tap directly the bottom with your finger, as this will damage the membrane.
Make sure that the rubber O-ring sits properly inside the membrane cap.With the sensor
facing down, slowly screw the membrane cap clockwise. Some electrolyte will overflow.
The Platinum cathode (#8 in the Probe Functional Description page 8) should always be bright and untarnished.
If it is tarnished or stained, the cathode should be cleaned. You can use a clean lint-free cardboard or cloth. Rub
the cathode very gently side to side 4-5 times. This will be enough to polish and remove any stains without
damaging the platinum tip. Afterwards, rinse the probe with deionized or distilled water and install a new
membrane cap using fresh electrolyte and follow the steps above. Recalibrate the instrument.
PROBE CONDITIONING & MAINTENANCE
PROBE CONDITIONING & MAINTENANCE
PROBE CONDITIONING & MAINTENANCE
PROBE CONDITIONING & MAINTENANCE
PROBE CONDITIONING & MAINTENANCE
TWIST
AND
PULL
UNSCREW
fig. 1
fig. 2
