Vapro 5520 - Page 59

SECTION 5
SOLVING PROBLEMS
5.1 Troubleshooting
59
Erratic Reading
MESSAGE
"ERROR Check
Thermocouple"
MESSAGE
"Calibration Error"
Abnormal
Display
Yes
No
No
Yes
Yes
Verify Calibration
Standard
Clean
Thermocouple
Check for Loose
TC Screws
Is S.D. 2.0 or
less
Check TC
Connector
Replace
Thermocouple
Head
Evaluate Sample
Loading
Technique
Broken or
Damaged
Thermocouple?
Verify That You
are Using 100
Standards
Run an Auto
Repeat using
1000
No
Is There Visible
Contamination?
Restart
Instrument