4-Electrode Conductivity - ABB AWT420 Commissioning Instructions

AW T4 2 0 | U N I V E R S A L 4 - W I R E , D U A L- I N P U T T R A N S M I T T E R | C I/A W T4 2 0 - E N R E V. B

4-electrode conductivity

Menu Comment
Tag
Enter an alphanumeric sensor tag (16 characters maximum) to identify the sensor on the
Operator Pages.
Measurement Type Select measurement type:
• Conductivity/Concentration
Note. If a change is made the I/O sources are reset.
Note . The following menus are displayed only if Measurement Type = Conductivity
Conductivity Unit Select the conductivity units:
• mS/cm/μS/cm
Sensor Group
Enter the sensor group for the measuring cell used –
• Group A/Group B
see the relevant conductivity cell manual.
Range High Set the span value used in Chart and Bargraph views.
Range Low Set the zero value used in Chart and Bargraph views.
Note . The following menus are displayed only if Measurement Type = Concentration
Sensor Group
Enter the sensor group for the measuring cell used –
• Group A/Group Bw
see the relevant conductivity cell manual.
Conc . Solution Note. Displayed only if Sensor Group = Group A
Select the Concentration Solution
• NaOH/HCl/H2SO4/H3PO4/NaCl/KOH/Custom
Concentration Unit Note. Displayed only if Conc. Solution = Custom
Select the Concentration Units
• None(Blank)/ppm/mg/l/ppb/μg/l/%/Custom
Custom Units Note. Displayed only if Concentration Units = Custom
Enter an alphanumeric string (6 characters maximum) for the custom (user defined) concentration units.
Conc . Curve Table Set the user defined concentration curve using the 6-point linearizer table
(concentration against conductivity).
Range High
View the span value used in Chart and Bargraph views.
Range Low View the zero value used in Chart and Bargraph views.
Filter Type
Select the signal filtering type:
• None/Low/Medium/High
Temp . Comp . Type Set the type of temperature compensation:
• Manual/Automatic/None
Manual Temperature Note. Displayed only if Temp. Comp. Type = Manual
Enter the temperature of the sample within the range –10.0 to 120.0 °C.
TC Curve Note. Not displayed only if Temp. Comp. Type = None
Set the type of automatic temperature compensation required:
• TC Coeff./Standard KCl/NaOH/NaCl/HCl/H2SO4/H3PO4/KOH/User Defined
User Def . TC Curve Note. Displayed only if TC Curve = User Defined.
Set the user defined temperature compensation curve using the six point linearizer table (% against °C).
TC Coefficient Note. Displayed only if TC Curve = User Defined.
Enter the temperature coefficient (α x 100) of the solution (0.01 to 5.00 %/°C).
If unknown, the temperature coefficient (α) of the solution must be calculated – see page 97.
Sensor Diagnostics
Dirty Sensor Detect dirty sensor condition:
• Enabled/Disabled
Out Of Solution Detect Out Of Solution condition:
Enabled/Disabled
Reset To Defaults Select to reset all Sensor Setup parameters to their default values
Sensor group
A
B
Conductivity measuring range
0 to 2000 mS/cm
0 to 2000 µS/cm
29
Default
TAG1
Conductivity
mS/cm
Group A
Sensor Group dependent
– see table below
0
N/A
N/A
N/A
N/A
N/A
N/A
N/A
None
Automatic
25.0 °C
TC Coeff
N/A
2.00 %/°C
Disabled
Disabled