Thermo Fisher Scientific CyberScan CON 510 - Manual (Page 28)

Instruction Manual CON 510
9 TROUBLE SHOOTING GUIDE
Problem Possible Cause Solution
No display A. AC outlet not switched on. A. Switch on power supply.
B. AC adapter socket not inserted
properly B. Re-insert AC adapter socket.
Unstable readings A. Air bubbles in probe A. Tap probe to dislodge air bubbles.
B. Dirty probe B. Clean probe and recalibrate.
C. External noise pickup C. Move away from noise.
D. Broken probe D. Replace probe.
“Or” on upper display A. Probe is shorted. A. Test probe.
B. Probe is in too-high solution for
measurement range. B. Use different solution or select different
range.
Not able to calibrate A. Dirty/Oily probe A. Clean
B. Incorrect probe cell constant B. Replace and use correct probe.
10 ERROR MESSAGES
LCD Display Indicates Possible Cause Solution
Err. annunciator Unrecognised key entry Incorrect key entry or
selection Release key. Check mode.
Select appropriate key.
CAL & Err
annunicator blink Calibration error Incorrect value input
during calibration. Dirty
or faulty probe. Check value. Clean or replace
probe.
24