ABB 4630 - Page 27

25
Temp Units (°C)
–––––
(°F)
Temp Comp Auto
–––––
Man
Preset Temp (°C)
Samp Comp Yes
–––––
No
SET UP ALARMS
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Sample Coeff.
Set Min. Slope %
Yes
Man
Auto
Glass
Electrode
Antimony
Electrode
250
.
600
.
–0035
.
7 PROGRAMMING…
…7.3 Set Up Parameters Page
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 is set to Man, enter the temperature of the sample.
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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.