Owner's manual

Maintenance

Eppendorf BioSpectrometer

basic

English (EN)

8.3.2 Device self-test

The frequency of the automatic self-test (approx. 1 minute) can be set using the Device settings function

(see Device settings on p. 64). The factory setting for Self-test interval is "Weekly".

The self-test checks the following:

• Verification of the detector

– Determination of the random error across the entire available spectrum

• Verification of the light source

– Verification of the maximum available energy of the light source and quality of the light transmission

through the device

– Determination of the signal random error at the reference sensor

– Determination of the signal level at the reference sensor

– Separate determination of light intensity in UV range

• Determination of the systematic and random error of the wavelength

– Position of an intensity peak in the UV range of the spectrum

– Precision of the position of an intensity peak in the UV range of the spectrum

 Select the Perform self-test function in the Device calibration group and confirm with enter.

At the end of the self-test, the display shows the message PASSED.

If the display shows the message FAILED, the self-test has failed. If this error cannot be corrected (see

Error messages on p. 76), contact Eppendorf Service.

8.4 Replacing fuses

The fuse holder is located between the mains connection socket and the mains power switch.

1. Disconnect the power plug.

2. Press the upper and lower end of the plastic springs 1 together and pull the fuse holder 2 fully out.

3. Replace faulty fuses and reinsert the fuse holder. Make sure that the guiding rail 3 is positioned

correctly.

DANGER! Electric shock.

 Switch off the device and disconnect the power plug before starting maintenance or

cleaning work.