Hach 3400 Serie Manual Del Usuario página 13

• 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
more information.
11. If the calibration passed, push ENTER to continue.
12. If the option for operator ID is set to Yes in the Calibration Options
menu, enter an operator ID. Refer to
on page 14.
13. 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.
14. 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. The reference value must be
determined with a secondary verification instrument.
Note: If the sensor is calibrated for the first time, be sure to complete the zero
calibration first.
1. Push the MENU key and select Sensor Setup, [Select Sensor],
Calibrate.
2. Select Sample Cal and push ENTER.
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:
Troubleshooting on page 15 for
Change calibration options
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. Measure the conductivity (or other parameter) value with a secondary
verification instrument. Use the arrow keys to enter the value and push
ENTER.
8. 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
more information.
9. If the calibration passed, push ENTER to continue.
10. If the option for operator ID is set to Yes in the Calibration Options
menu, enter an operator ID. Refer to
on page 14.
11. 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.
12. Return the sensor to the process and push ENTER.
Troubleshooting on page 15 for
Change calibration options
English 13