Campbell CS526 Instrukcja Obsługi Pobierz pdf (Strona 17)

Appendix A. Calibration

This calibration process uses 7 pH and 4 pH buffer solutions.

Protect the sensing chip from UV radiation during calibration. If

calibrating in sun or fluorescent light, shield the sensing chip from UV

by using dark containers for the buffer solutions.

NOTE

Load the following example CRBasic program into the datalogger. Wire the

CS526 to the datalogger according to the following diagram.

Wire Color Datalogger Connection

Red (Caution! 5 Vdc Max!) 5V

Black G

White Control Port (Tx)

Green Control Port (Rx)

Clear G

Use the Numeric Display found in the datalogger software PC200W, PC400,

LoggerNet, PConnect, or PConnectCE to monitor the measurement in real

time.

1. Place the CS526 into a pH 7 buffer solution (CSI pn 25586).

2. Monitor the [pHmV] reading in the Numeric Display and allow it to

stabilize.

3. Change the value in [pH7record] to -1.

4. Remove the CS526 from the pH7 buffer solution and rinse with de-ionized

water.

5. Blot the CS526 dry with a soft cloth or paper towel.

6. Place the CS526 in a pH 4 buffer solution (CSI pn 25587).

7. Allow the [pHmV] reading to stabilize.

8. Change the value in [pH4record] to -1.

9. Change the value in [pHcal] to -1.

10. The CS526 is now ready to be placed in the solution to be measured.

A-1

1 2 ... 12 13 14 15 16 17 18 19 20

Brak uwag

Campbell CS526 Instrukcja Obsługi Strona 17