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KEYPAD DESCRIPTION
• ON/OFF: to turn the meter on and off.
• ZERO/SET: this is a bi-functional key: press to zero the meter prior to measurement, or hold the
key for 3 seconds to select the desired parameter (free or total chlorine).
• READ/TIMER: this is a bi-functional key, just press for making a measurement, or hold the key
for 3 seconds to start a pre-programmed countdown prior to measurement.
• CAL CHECK: this bi-functional key allows to perform validation of the instrument just pressing
the CAL CHECK key, or hold the key for 3 seconds to enter the
calibration mode
.
OPERATING MODES
•
Measurement mode:
default operation mode, enables both
validation
and
measurement.
•
Calibration mode:
may be entered
by keeping CAL CHECK pressed for three seconds (the “CAL”
icon appears), it enables
calibration
of the instrument.
DISPLAY ELEMENTS DESCRIPTION
1) four digit main display area.
2) CAL: appears when the instrument operates in the
calibration mode.
3) the Month and Day icons appear above the number of month and day when a date is
displayed.
4) the blinking “Battery” icon appears when the battery voltage is getting low.
