INFICON UL1000 Helium leak detector - Manual (Page 98)

98
Error And Warning Messages
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W77 Peak not in Range The signal maximum has shifted to mass range alignment limits.
• Signal of leak rate was instable during mass adjustment. Calibrate
again.
• Check the basic setting for the anode voltage through the service
menu.
• Check calibrated leak.
W78 Differences of signal between
test leak open and closed is
too low.
The amplifier voltage difference between opened and closed calibrated
leak is less than 10 mV. Calibrated leak has not been closed properly.
W79 Signal of test leak is too small Calibrated leak is too small or has not been opened. Preamplifier voltage
< 10 mV.
W80 Please calibrate machine
newly
The automatic request of calibration is activated ( 7.2.1.1 ) and has fullfilled
at least one of the conditions:
• 30 minutes are passed since energizing.
• Temperature of the pre-amplifier has changed more than 5°C since the
last calibration.
• Massadjustments were changed.
W81 CAL Factor too low The calculated factor falls out of the valid range (< 0,1). The old factor is
retained.
Possible fault cause:
• The conditions for calibration have not been maintained.
• The leak rate of the internal calibrated leak which was entered is much
too small.
• The internal test leak is defect.
W82 CAL Factor too high The calculated factor is out of the valid range (> 10). The old factor is
retained.
Possible fault cause:
• The conditions for calibration have not been maintained.
• The leak rate of the internal calibrated leak which was entered is much
too high or much too small.
• The internal test leak is defect or empty.
W83 All EEPROM parameter lost.
Please check your settings.
• EEPROM on back plane is empty and was initialized with default
valves. Enter all parameters again.
• The EEPROM might be faulty when warning comes up again after
power up.
W85 Lost EEPROM parameter!
Please check your settings!
• Writting access was interrupted. Please check all adjustments.
• An update of software was done. In this case the notice can be ignored.
• When warning comes up again after powering up the EEPROM might
be faulty.
W86 AC/DC factor too low Calibration conditions not maintained
Value of leak rate not entered correctly
Test leak faulty
W87 AC/DC factor too high Calibration conditions not maintained
Value of leak rate not entered correctly
Test leak faulty
No. Displayed Message Description and possible solutions