Weather Radio User Manual

89
VIEWING LOGGED DATA
• Press ALT+VIEW keys: the last sample will be displayed.
• Press the “right arrow” key to scroll among turbidity value, date and time of
the sample.
• Press the “up/down arrow” keys to view next sample and use the “right arrow”
to scroll the date and time.
• Press ALT+VIEW again to exit and return to measurement mode.
VIEWING AND SETTING DATE AND TIME
VIEWING
• Press ALT+DATE to toggle between date and time.
SETTING
• Press and hold ALT+DATE for 3-4 seconds.
• Press the “up/down arrow” keys to set the year.
• Press the “right arrow” to scroll to month & day, then use the “up/down arrow”
keys to set the date.
• Press the “right arrow” again to scroll to time, then use the “up/down arrow”
keys to set the time.
• Press the “right arrow” again to save and exit from setup mode.
Note: Press ALT+DATE to exit without saving.
• Press the READ key and the LCD will display a blinking “SIP” (Sampling In
Progress). The measured value will appear after approximately 25 seconds.
SOURCES OF INTERFERENCE
• Presence of floating debris and coarse sediment which settle out rapidly will give
false readings.
• The infrared light source used for HI 93124 Haze meter can effectively minimize
errors due to coloured dissolved substances. This effect, named “true colour”,
is a common interference for most commercially available instruments operating
in the range of visible light.
• Air bubbles and the effect of vibrations that disturb the surface of the sample
will give false results.
• Dirty glassware could also affect readings along with scratched or edged cuvette.
LOG-ON-DEMAND
• The meter can store up to 199 measurements in the internal memory. Press
the STO key: the last measured value will be stored and the display will show
the reference number of the stored sample.
• When the maximum number of samples (199) is
reached, the LCD will display the "FULL" message
to warn the user that next value will overwrite the
oldest sample recorded.
All samples will be shifted (reference number reduced by one) and the ref. number
one will continue to indicate the oldest value. To confirm storing of the current
sample, press the STO button again.
CLEARING LOGGED DATA
• For clearing all data stored in memory, press
ALT+CLR keys: the meter will ask for confirmation
by displaying the "CLr" message.
Press ALT+CLR again to clear memory or any button to abort the operation.
To communicate with the instrument through the HI92000 software, simply connect
the 9-pin serial port of the PC to the 5-pin connector of the meter, by using the
HI920011 cable (optional).
The meter will maintain its full functionality, being also able to perform data transfer
while operating.
Notes:
• RS232 communication is not allowed during calibration.
• The auto-off feature is disabled when the meter is connected to a PC.
RS232 CONNECTION