10-6
POSSIBLE CAUSE:
High waste level.
ACTION:
Empty waste bottle.
SECTION:
POSSIBLE CAUSE:
Bubbles in buffer or calibrator bottle tubing.
ACTION:
Prime bottle.
SECTION:
SYMPTOM:
INTERNAL FAILURE: Unable to Calibrate
POSSIBLE CAUSE:
Air bubbles in calibrator tubing.
ACTION:
Prime calibrator bottles.
SECTION:
POSSIBLE CAUSE:
Pinched, leaking or disconnected tube.
ACTION:
Fix or replace tubing.
SECTION:
POSSIBLE CAUSE:
Sipper misaligned.
ACTION:
Check Sipper alignment.
SECTION:
POSSIBLE CAUSE:
Stir bar not in sample module.
ACTION:
Install stir bar.
SECTION:
POSSIBLE CAUSE:
Stir speed too fast or too slow.
ACTION:
Adjust stir speed.
SECTION:
POSSIBLE CAUSE:
Newly installed enzyme membrane.
ACTION:
Enter probe diagnostics and check probe currents.
SECTION:
POSSIBLE CAUSE:
Newly installed probe.
ACTION:
Enter probe diagnostics and check probe currents.
SECTION:
POSSIBLE CAUSE:
Calibrator solution out of spec: contaminated or installed for more than 30 days.
ACTION:
Install new calibrator.
SECTION:
POSSIBLE CAUSE:
Net calibration current (PL current) below 5 nA.
ACTION:
Replace enzyme Membrane and check calibrator solution.
SECTION:
POSSIBLE CAUSE:
Failing enzyme membrane.
ACTION:
Perform daily operational checks and replace membrane(s) if necessary.
SECTION:
5.1 Perform Daily Operational Checks
POSSIBLE CAUSE:
Probe surface fouled.
ACTION:
Clean probe surface.
SECTION:
POSSIBLE CAUSE:
Auxiliary electrode fouled.
ACTION:
Clean Auxiliary electrode surface (temperature probe) with isopropyl alcohol.
Summary of Contents for YSI 2500
Page 1: ...USER MANUAL 525021 YSI 2500 Biochemistry Analyzer OPERATIONS AND MAINTENANCE MANUAL...
Page 34: ...5 11 8 The Stat sample results are displayed on the Run Stat tab Stat sample results...
Page 88: ...13 1 13 Notices Declaration of Conformity 13 1...
Page 96: ...17 1 17 Appendix D Line Power Cord and Plug Wiring United Kingdom United States Europe...
