Ysi 556 MPS Bedienungsanleitung PDF herunterladen (Seite 109)

Section 13 Troubleshooting

YSI Incorporated YSI 556 MPS

Page 103

PROBLEM POSSIBLE SOLUTIONS

Optional Cigarette Lighten Charger

Power cord fuse blown.

1. Unscrew adapter’s cap, remove tip and pull out fuse.

2. Replace fuse with a new 2-amp fast-blow fuse from an

electronics store such as Radio Shack.

3. Reassemble the adapter and securely screw the cap back

onto the adapter body.

File Problems

Upload of files from YSI 556

MPS to PC fails

1. Make sure that cable is connected properly to both 556

and PC.

2. Make certain that the proper Comm port is selected in

EcoWatch for Windows.

Barometer data is not stored

with sensor data file.

Make sure Store barometer is active in the 556 Logging

setup menu.

Site Descriptions in the Site

List are “grayed-out” and not

available for appending files

with additional data.

There is a parameter mismatch between the current 556

setup and that initially used. Change the current logging and

sensor setup to match the setup that was initially used to

create the file.

Sensor Problems

Sensor not properly calibrated. Follow DO cal procedures.

Membrane not properly installed or may be punctured.

Replace membrane cap.

DO sensor electrodes require cleaning. Follow DO cleaning

procedure. Use 5511 Maintenance kit.

Water in sensor connector. Dry connector; reinstall sensor.

Algae or other contaminant clinging to DO sensor. Rinse DO

sensor with clean water.

Barometric pressure entry is incorrect. Repeat DO cal

procedure.

Calibrated at extreme temperature. Recalibrate at (or near)

sample temperature.

DO sensor has been damaged. Replace sensor.

Dissolved Oxygen

reading is unstable or

inaccurate. Out of Range

message appears during

calibration.

Internal failure. Return probe module for service.

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