Hach NA5600 sc Na+ Mode D'emploi page 26

5.5 Do a temperature calibration
Make sure that the temperature reading is accurate as necessary.
1. Remove the sodium electrode from the middle chamber of the measurement cell.
2. Put the sodium electrode in deionized water to keep it wet.
3. Put a calibrated temperature sensor in the middle chamber of the measurement cell.
4. Record the temperature reading.
5. Push cal, then select TEMPERATURE CAL.
The sample temperature shows on the display.
6. Push enter.
7. If the recorded temperature and the temperature on the display are not the same, enter a
temperature offset.
For example, if the recorded temperature is 23 °C and the temperature on the display is 25 °C,
then enter –2 °C.
8. Install the sodium electrode in the middle chamber of the measurement cell.
5.6 Do a flow rate calibration
Make sure that the flow rate reading is accurate as necessary.
1. Push menu, then select STOP ANALYZER.
Note: If START ANALYZER shows, the analyzer is already in standby mode.
2. Push cal, then select FLOW RATE CAL.
3. Wait for the calibration to complete (approximately 5 minutes).
4. Push enter to go to the measurement screen.
5. Push menu, then select START ANALYZER.
5.7 Calibrate the 4-20 mA analog outputs
If an analog output in the analyzer is connected to an external devices, calibrate the analog output as
necessary. The analog outputs are factory-calibrated. The adjustment range for analog output
calibration is ± 2 mA.
Note: If an analog output is configured to be 0–20 mA, 4 mA and 20 mA are calibrated.
1. Push menu, then select SETUP SYSTEM > CONFIGURE ANALYZER > SETUP OUTPUTS >
OUTPUT CALIBRATION > [select an output].
2. Select an option.
Option Description
CAL 4mA With a calibrated digital multimeter, measure the actual value supplied at the
analog output. Adjust the value shown until the signal at the analog output is
4.00 mA.
CAL 20mA With a calibrated digital multimeter, measure the actual value supplied at the
analog output. Adjust the value shown until the signal at the analog output is
20.00 mA.
Section 6 Operation
6.1 Show the details of the current and the last measurement
Push menu and select VIEW DATA > MEASUREMENT DATA. Refer to
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Table 4.