YSI 6 series Instrukcja Użytkownika Pobierz pdf (Strona 28)

PORT AND PROBE CLEANING PROCEDURE

To remove contamination -- which can include grease, saltwater, electrolyte, and calibration reagents --

the probes and sonde can be submerged in hot tap water which has had dishwashing soap (with a

degreaser) added. The temperature should be around 35 to 40°C. The soapy water mix must be pumped

into the open sonde ports and probe connector to be effective. Using a lab rinse bottle will help flush out

the ports. Soak the probe and affected sonde connectors for one hour. Rinse thoroughly with DI water

after the soak. Follow this with a thorough rinse of 90% isopropyl alcohol. Shake or blow dry the port

with a dry air source or allow air-drying overnight.

THINGS TO WATCH

1. Check the position of your wiper. Make sure that there is at least a business card’s thickness of

clearance between the wiper body and the probe face.

2. Tighten the set-screw against the wiper shaft’s flat area. Make sure that the screw tightens and the

threads are not stripped.

3. Confirm that the wiper pad is clean and properly positioned.

4. Make sure that the probe face is clean! If grease gets on the pad or finger oil gets on the optics the

probe will not calibrate or measure correctly!

5. Always follow the spacing requirements when calibrating with the zero standard.

6. Battery voltage spikes in the data (>13.5 VDC) are signs that the sonde may have a malfunctioning

or leaking optical probe. Water in the sensor electronics can cause the sensor power supply in the

sonde to overload and cause erratic data. The leaking probe can also effect the operation of the other

sensors. Remove the optical probes one at a time and run to isolate the problem.

Note: A mis-parking wiper is an indicator of a malfunctioning and/or wet probe.

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YSI 6 series Instrukcja Użytkownika Strona 28