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CALIBRA
TION
• When the standard is recognized, “RECOGNIZED” is scrolled at the bottom of the LCD display.
“WAIT” is displayed until the reading is stable and the calibration is accepted.
or
• If the standard solution is not recognized (either because the probe has not been placed in solution
or the reading is outside accepted range), “---- WRONG” message is displayed along with CAL tag
blinking.
• After the standard solution is accepted, the “SAVE” message is displayed and the controller returns
to measurement mode.
• The “CAL” tag is displayed automatically in measurement mode after a calibration has been
performed.
10.2. PROCESS EC & TDS CALIBRATION
PROCESS EC CALIBRATION
Prior to performing a process EC or TDS calibration, determine the value using a reference meter.
Make a note of the value.
Note:
To enter process calibration, the “CAL” tag must be on. The controller and probe had to be
calibrated previously in mS/cm standard.