LEYBOLD UL 200 - Page 41

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W79: Signal too small

Calibrated leak is too small or has not been opened.

Preamplifier voltage < 10 mV.

The tune process is ignored and the calibration process

is continued.

W80: Request for Cal

Request for calibration.

See explanations for menu item 24.

Since the last request for calibration, the temperature

has changed by 5 °C or the UL 200 has warmed up for

30 minutes.

W81: Factor out of Range

The calculated factor falls out of the valid range. The old

factor which has been calculated is retained.

Possible fault cause:

- The conditions for calibration have not been maintai-

ned.

- The leak rate of the calibrated leak which was entered

is much too high or much too small.

Software Problems

W84: EEPROM Write XX

The parameter could not be written into the EEPROM.

XX indicates the number of the parameter.

E85: Parameter Lost XX

At least one parameter has been lost.

The UL 200 will assume the default value for that para-

meter.

Check trigger values and calibrate the instrument. XX

indicates the number of the parameter.

W86: FB Timeout

No data have been received from the hand unit for 500

ms.

This error occurs as a follow-up error to error numbers

1 ... 5.

The hand unit has not been connected.

E87: FB CRC-Error

The data from the hand unit have not been received cor-

rectly over a period of 500 ms.

- Faulty data link.

W88: Serial Parity