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1. Liquid Crystal Display (LCD)
2. STORE/RECALLkey, to store measurements and
recall stored data
3. CFM key, to confirm values
4. CAL key, to enter/exit calibration mode
5. Up arrow key, to manually increase the value of
temperature or other parameters
6. Down arrowkey, to manually decrease the value of
temperature or other parameters
7. SHIFT key, to activate the key alternate function.
Press and hold first the SHIFT key and then the
second desired key
8. SETUP key, to enter/exit setup mode
9. RANGE/”lock” key, to select measurement unit
or switch the focused data, and to freeze current
range on the LCD
10. ON/OFF key, to turn the instrument ON and OFF
11. HOLD/GLP key, to freeze the first stable reading
on the LCD and to display Good Laboratory Prac-
tice information
12. Power supply socket
13. Probe connector
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If RANGE is pressed when the last parameter is dis-
played, the meter returns to measurement mode.
Notes:
•To exit GLP mode at any time press SHIFT+GLP keys.
•If the calibration procedure was never performed, af-
ter displaying the ID code, the LCD will show the "no
CAL" message blinking. Press RANGE or
SHIFT+GLP keys to return to measurement mode.
•Last calibration data is available for EC range only.
No calibration data can be recalled for TDS. If the
meter is in TDS mode, by pressing SHIFT+GLP keys
only the ID code is shown. Press SHIFT+GLP keys
again to return to measurement mode.
•The meter is provided with an internal lithium battery
that allows to correctly update date and time even if
the power supply is disconnected.
•GLP data are not affected by the zero calibration.
