ABB 4630 Operating Instructions Manual page 27

...7.3 Set Up Parameters Page
Continued from previous page.
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Temp Units (°C)
(°F)
Antimony
Electrode
– – – – –
Temp Comp Auto
Man
Auto
Man
Glass
Electrode
2 5 0 .
Preset Temp (°C)
– – – – –
Samp Comp Yes
No
Yes
.
– 0 0 3 5
Sample Coeff.
6 0 0 .
Set Min. Slope %
Return to
– – – – –
top of page
SET UP ALARMS
Temperature Units:
can be displayed as either degrees Celsius or Fahrenheit.
Select either (°C) or (°F).
Temperature Compensation
If Auto is selected, the instrument automatically compensates for sample temperature
fluctuations.
Select either Auto or Man.
Preset Temperature
If
Temperature Compensation
Return to top of page.
Sample Compensation
If Yes is selected, boiler water compensation is enabled.
Select Yes or No as required.
Sample Coefficient
Set the required sample temperature coefficient value, in pH/°C, within the range 0.000
to –0.040 (in –0.001 increments).
Note. For boiler water applications, set to –0.035.
pH Calibration Minimum Slope Value
Set the required pH calibration minimum slope value, in %, within the range 60.0 to 90.0
(in 0.1 increments).
The fail limit is automatically set to 20% below the minimum slope setting – see Table 6.3
on page 20.
Advance to
Set Up Alarms Page
7 PROGRAMMING...
is set to Man, enter the temperature of the sample.
.
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