15
Press the key once.
CALIBRATE will be visible and the ‘mV/pH’ and ‘%’ (slope) of
the previous calibration will be displayed. The display will alternate
between ‘mV/pH’ and ‘°
C.’
‘2 Point’ indicates that the previous calibration was a two-point
calibration.
‘1 Point’ indicates that the previous calibration was a one-point
calibration.
4.3 Calibration (Viewing Last Calibration Data)
4.4 New Calibration
For two-point calibration, the default settings are Buffer 1 = 7.00 pH and Buffer 2 = 10.00 pH but these values may be
changed.
Because it is not always possible to transfer the temperature probe from the process to the pH buffer, automatic
temperature probe detection can be switched off in pH calibration mode.
The calibration parameters (temperature, ATC [automatic temperature compensation] or manual, buffer pH and one or two
point calibration) of the previous calibration are the initial values for the current calibration.
If the LMI temperature cable and probe are connected, then the computer automatically selects and uses this ATC
(automatic temperature compensation) during calibration. If no temperature probe is connected, then ‘MANUAL’
will be selected during calibration. You must manually measure the temperature of the process being controlled and
enter that value here.
The unit must be placed in the ‘OFF’ mode. The unit cannot be calibrated in the ‘Run’ mode.
Calibration (e.g., 2 Point)
(1) ......
+ 5 seconds
Hold the ‘CALIBRATE’ key down for five (5) seconds.
‘CALIBRATE’ will start flashing.
(866) 433-6682 • (281) 359-8538 • sales@novatech-usa.com • www.novatech-usa.com
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