Zero Calibration - Hach 9586sc Oxygen Manuel D'utilisation De Base

6. Enter the correct value if different from that displayed and push enter.
7. Push enter to confirm the calibration. The temperature offset is displayed.

Zero calibration

The zero value has been factory calibrated. Use the zero calibration procedure to define the unique
zero point of the sensor.
1. If the sample concentration is < 10 ppb, for best results it is recommended to use the optional
zero calibration cartridge (refer to
the sensor in place. Otherwise remove the sensor from the process and rinse in distilled water.
2. Push the menu key and select SENSOR SETUP>CALIBRATE.
3. If the pass code is enabled in the security menu for the controller, enter the pass code.
4. Select ZERO CAL and push enter.
5. 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.
6. If not using the optional zero calibration cartridge place the clean sensor in a hydrazine free
solution such as ultra pure water, push enter.
7. Wait for up to one hour for the value to stabilize and push enter.
8. Review the calibration result:
• PASS—the sensor is calibrated and the offset is displayed.
• FAIL—the calibration is outside of accepted limits. Clean the sensor and retry. Refer to
Troubleshooting
9. If the calibration passed, push enter to continue.
10. If the option for operator ID is set to YES in the CAL OPTIONS menu, enter an operator ID. Refer
to Change calibration options
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. If not using the optional zero calibration cartridge 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.
1. Push the menu key and select SENSOR SETUP>CALIBRATE.
2. If the pass code is enabled in the security menu for the controller, enter the pass code.
3. Select SAMPLE CAL and push enter.
20 English
Replacement parts and accessories
on page 22 for more information.
on page 21.
on page 22) and leave