ABB AX400 Series User Manual page 28

Single and dual input analyzers for pH/Redox (ORP)
AX416, AX436, AX460, AX466 & AX468
A: Buffer Method
Man 2-Pt
9. 1 8
pH
20. 0
Deg.C
A: Immerse Buf.2
9. 2 2
pH
105
mV
Press button
when stable
9. 2 2
pH
A: Cal. Accepted
9. 2 2
pH
A: Cal. Buffer 2
A: Buffer Method
Man 1-Pt
-----
Passed
A: Calibration
100. 0
%
7. 0 0
pH
A: Slope & Check
Sensor Cal. A
26
Calibrate Buffer 2 (Two-Point Calibration only)
Immerse Sensor A in the second buffer solution.
and
pH Adjust
keys to set the displayed pH value to the temperature-corrected pH value of the
chosen solution (see the data sheet provided with the solution).
Press the
Note. To abort calibration, press the
complete – see previous page.
Measured pH value from the last successful calibration.
Measured sensor output in millivolts.
When the measured sensor output stabilizes, press the
calibration.
Cal. Accepted
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.
Calibration Message
See Table 4.1 for details of calibration messages.
Slope Value
% slope value.
A value between the programmed minimum % slope value (see
Section 5.3) and 105 % is displayed. If the value is outside these limits, check the
electrode system.
pH check value.
Displayed as an additional indication of electrode system condition; 7 ph is the
optimum value for glass electrodes and 0 ph for Antimony electrodes.
Sensor B calibration (dual input analyzers only) is identical to Sensor A calibration.
Sensor Cal. B
for Sensor B (dual input analyzers only) set to
Probe Type
SENSOR CAL.
set to
Cals. No
Alter Sec. Code
SECURITY CODE
Alter Sec. Code
CONFIG. DISPLAY
are shown alternately on the upper display line. Use the
key to initiate calibration.
is shown for 2 seconds to confirm that the calibration has been
(Section 5.3) – return to top of page.
not set to zero (Section 5.8) – see Section 5.1, page 28.
set to zero (Section 5.8) – see Section 5.2, page 29.
key again at any time before calibration is
key to accept the
Set Min Slope
or
Redox ORP
IM/AX4PH Rev. P
4 Setup
and
–
and
Enable