alpha-pH 1000
12
Note: If there is a calibration error, the controller displays “ERR”. If this happens, push both the
!
and
"
keys (escape) to restart the calibration beginning from step 1.
Note: When calibrating with manual temperature compensation, the controller automatically
changes from the preset process temperature to the calibration temperature. After leaving the
Calibration mode, the controller switches back to process temperature (for setting the calibration
temperature and the process temperature, see section 7.2.3).
6.2
ORP – mV Calibration
This mode allows one-point calibration.
1)
Enter Calibration mode. While in Measurement
mode, push the CAL key and scroll to Calibration Code
“11”. Push the ENTER key. The upper and lower display
reads “CAL OrP”.
Note: If the upper and lower display read “CAL PH”, see
section 7.6.2 for procedures on how to switch from PH to
ORP mV readings.
2)
Place sensor in the ORP solution.
3)
Press the ENTER key to begin calibration. The “CAL”
indicator appears on the display. The upper display shows
the current mV output of the electrode without any offset
adjustment.
4)
Press the
!
or
"
key to match the mV value to your
exact reading.
5)
To confirm, press the ENTER key. The controller
calculates the correction factor and returns to the
Measurement mode.
CAL
OrP
SETUP
HOLD
226
mV
C
HOLD
CAL
