ABB AX411, User Manual, Page: 19 / 56

17
5 PROGRAMMING…
Temperature Sensor
Select the type of temperature sensor used, Pt100 or Pt1000.
Temperature Coefficient
Note. Displayed only if
Temp.Comp.
is set to
Linear
or
UPW
– see previous page.
Enter the temperature coefficient (
α
x 100) of the solution (0.01 to 5.0%/°C). If unknown,
the temperature coefficient (
α
) of the solution must be calculated – see Appendix A1.1.
If the value has not yet been calculated, set it to 2%/°C provisionally.
TDS Factor
Note. Displayed only if
Cond.Units
is set to
TDS
– see page 15.
The TDS factor must be programmed to suit the particular application – see Appendix A2.
Enter the required TDS factor between 0.4 and 0.8.
For salinity applications, set the TDS factor to 0.5.
TDS Units
Note. Displayed only if
Cond.Units
is set to
TDS
– see page 15.
Select the TDS units (ppm, mg/l or mg/kg).
Enable Calibration
If Sensor Calibration is required, select
Yes
.
If
No
is selected the sensor calibration menus for Sensor A are disabled.
Dual input conductivity only – Sensor B configuration is identical to Sensor A
configuration.
Single input conductivity only – return to main menu.
See Section 5.4.
…5.3 Configure Conductivity Sensors
A: Temp.Sensor
-----
A: Temp.Coeff.
2.00
Pt100
Pt1000
%/°C
A: TDS Factor
0.75
ppm/uS
-----
A: TDS Units
mg/kg
mg/l
ppm
-----
A: Enable Cals.
Yes
No
Config. Sensor B
CONFIG. ALARMS
Config. Sensor A
CONFIG. SENSORS