ABB AX416 User Manual page 27

...4.1 Sensor Calibration
4.1.5 Manual, Single- and Two-Point Calibration (pH Only)
Man
-----
1-Pt
A: Buffer Method
20. 0
Deg.C
A:Set Buf. Temp.
4. 0 0
pH
25. 0
Deg.C
A: Immerse Buf.1
4. 0 1
pH
175
mV
Press button
when stable
4. 0 1
pH
A: Cal. Accepted
4. 0 1
pH
A: Cal. Buffer 1
-----
Yes
A: Abort Cal.
Sensor A: Buffer Method (pH probes only)
Select the type of manual calibration required:
Man 1-Pt – Manual, single-point calibration
Man 2-Pt – Manual, two-point calibration
Set Buffer Temperature
(or ) and
Deg.C Deg.F Adjust
and keys to adjust the displayed temperature value to the required buffer temperature
(–20 to150C or –4 to 302F).
Note. If is set to
A: Buffer Method
buffers.
Calibrate Buffer
(Single-Point Calibration)
Immerse Sensor A in the buffer solution.
and are shown alternately on the upper display line. Use the
pH Adjust
to set the displayed pH value to the temperature-corrected pH value of the chosen solution
(see the datasheet provided with the solution).
Press the key to initiate calibration.
Note. To abort calibration, press the
complete – see below.
Measured pH value from the last successful calibration.
Measured sensor output in milivolts.
When the measured sensor output stabilizes, press the
is shown for 2 seconds to confirm that the calibration has been accepted,
Cal. Accepted
the display then advances automatically to the next frame.
The display then changes for 2 seconds to show the temperature-corrected buffer value in
the upper display line, then advances automatically to the next frame.
Two-point calibration selected – continued on next page.
A: Immerse Buf.2
Single-point calibration selected – continued on next page.
A: Calibration
Abort Calibration
Select Yes or No.
selected – return to the main menu.
Yes
A: SENSOR CAL.
selected – calibration continues.
No
A: Immerse Buf.2
are shown alternately on the center display line. Use the
, the temperature selected is used for both
Man 2-Pt
or Calibrate Buffer 1
key again at any time before calibration is
4 SETUP...
(Two-Point Calibration)
and keys
key to accept the calibration.
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