ABB AWT420, Инструкции по вводу в эксплуатацию

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AW T4 20 |
U N I V ER S A L 4 - W I R E , D UA L- I N P U T T R A N SM I T T ER | C I/AW T4 2 0 - EN R E V. B
…10 Sensor setup
pH/Redox/ORP
Menu Comment Default
Tag Enter an alphanumeric sensor tag (16 characters maximum) to identify the sensor on the
Operator Pages
.
TAG1
Measurement Type Select measurement type:
• pH/Redox/ORP
Note . If a change is made the I/O sources are reset.
pH
Range High Set the span value used in Chart and Bargraph views. 14.00
Range Low
Set the zero value used in
Chart
and
Bargraph
views. 0.00
Filter Type Select the signal filtering type:
• None/Low/Medium/High None
Note .
The following menus are displayed only if Measurement Type = pH.
Temp . Compensation Set the type of temperature compensation:
• Manual/Automatic/Auto solution Automatic
Solution Coeff . Note . Displayed only if Temp. Compensation type = Auto solution.
Set the solution coefficient (pH or mV change per 10 deg C) of the solution being monitored.
See Appendix A, page 97 .
N/A
Manual Temperature Note . Displayed only if Temp. Compensation type = Manual.
Enter the temperature of the sample within the range –10.0 to 120.0 °C.
N/A
Note . The following menus are displayed only if Measurement Type = Redox/ORP.
Temperature Sensor Set the type of temperature measurement:
• Manual/Automatic
Note . If Temperature Sensor type = Manual , the temperature value is not displayed in the associated
Operator page or Signals View .
N/A
Low Slope Limit A pH probe degrades over time. As this happens the slope calculated by a calibration procedure gradually
decreases. Set the slope value below which a calibration fails. The low slope warning diagnostic is
activated if the calibration calculates a slope less than 20 % above this value.
40%
Sensor Diagnostics
Broken Glass Note:
Displayed only if Measurement Type = pH.
Detect broken glass condition:
• Enabled/Disabled
Disabled
Out Of Solution Detect Out Of Solution condition:
• Enabled/Disabled
Disabled
Ref . Poisoning Note: Displayed only if a digital (EZLink) sensor is connected.
Detect a contaminated reference electrode:
• Enabled/Disabled
Disabled
Ref . Failure Note: Displayed only if a digital (EZLink) sensor is connected.
Detect a failed reference electrode:
• Enabled/Disabled
Disabled
Ref . Blocked Detect a blocked reference electrode:
• Enabled/Disabled
Disabled
Ref . Alarm Limit Note: Displayed only if Ref. Blocked sensor diagnostic is Enabled.
A blocked reference electrode is detected when the impedance of the reference electrode exceeds
a given limit. Set the impedance value above which the reference blocked diagnostic is activated.
N/A
Reset To Defaults
Select to reset all
Sensor Setup
parameters to their default values.