Option Description
Hold The sensor output value is held at the current measured value
during the calibration procedure.
Transfer A preset output value is sent during calibration. Refer to the
controller user manual to change the preset value.
8. With the sensor in the reference solution, push ENTER.
9. Enter the reference temperature of the reference solution and push
ENTER.
10. Enter the slope of the reference solution and push ENTER.
11. Wait for the value to stabilize and push ENTER.
Note: The screen may advance to the next step automatically.
12. Use the arrow keys to enter the value of the reference solution and
push ENTER.
13. Review the calibration result:
• Passed—the sensor is calibrated and ready to measure samples.
The slope and/or offset values are shown.
• Failed—the calibration slope or offset is outside of accepted limits.
Repeat the calibration with fresh reference solutions. Refer to
Maintenance on page 15 and Troubleshooting on page 16 for
more information.
14. If the calibration passed, push ENTER to continue.
15. If the option for operator ID is set to Yes in the Calibration Options
menu, enter an operator ID. Refer to Change calibration options
on page 14.
16. On the New Sensor screen, select whether the sensor is new:
Option Description
Yes The sensor was not calibrated previously with this controller. The
days of operation and previous calibration curves for the sensor are
reset.
No The sensor was calibrated previously with this controller.
17. Return the sensor to the process and push ENTER.
The output signal returns to the active state and the measured
sample value is shown on the measure screen.
Note: If the output mode is set to hold or transfer, select the delay time when
the outputs return to the active state.
Calibration with the process sample
The sensor can remain in the process sample, or a portion of the
process sample can be removed for calibration.
1. Push the MENU key and select Sensor Setup, [Select Sensor],
Calibrate.
2. Select the calibration for the specified parameter and push ENTER:
• Conductivity—Cond Cal
• TDS—TDS Cal
• Salinity—Cond Cal
• Concentration—Conc Cal or Cond Cal
3. If the passcode is enabled in the security menu for the controller,
enter the passcode.
4. Select the option for the output signal during calibration:
Option Description
Active The instrument sends the current measured output value during
the calibration procedure.
Hold The sensor output value is held at the current measured value
during the calibration procedure.
Transfer A preset output value is sent during calibration. Refer to the
controller user manual to change the preset value.
5. With the sensor in the process sample, push ENTER.
The measured value is shown.
6. Wait for the value to stabilize and push ENTER.
7. Use the arrow keys to enter the value of the process sample and
push ENTER.
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