7
OPERATIONAL GUIDE
POWER CONNECTION
Plug the 12 VDC adapter into the power supply socket.
Notes:
• This instrument uses non volatile memory to retain the calibration
parameters and all other settings, even when unplugged.
• Make sure a fuse protects the main line.
PROBE CONNECTION
For EC/TDS or temperature measurements connect the probe to the 7-pin
connector. Make sure the probe sleeve is properly inserted.
INSTRUMENT START-UP
• Turn the instrument on by pressing the
ON/OFF
switch located on
the rear panel.
• All LCD tags are displayed and a beep is sounded while the
instruments perform a self test.
• The instrument will display “
LoAd
” message and “ ” blinking until
initialization is complete.
Notes:
•
The instrument starts in the same range and mode as it was
at power off.
•
The
RANGE
key toggles between measurement ranges:
- EC, TDS and NaCl.
CONDUCTIVITY MEASUREMENTS
Connect the conductivity probe to the instrument.
• Press the
RANGE
key to enter conductivity measurement range (EC).
• Submerse the probe into the solution to be tested. The
sleeve holes must be completely submersed. Tap the
probe repeatedly to remove any air bubbles that may
be trapped inside the sleeve.
• The conductivity value will be displayed on the primary
LCD and the temperature on the secondary LCD.
• If the reading is out of range, the full-scale value (200.0 for Mtc/Atc
mode or 500.0 for actual conductivity) will be displayed blinking.