ECOTEST SPECTRA MKS-11GN Operating Manual page 66

Important! After deleting the library of radionuclides from the
device, you should download another one; otherwise, the device
would not be able to identify radionuclides, although the search
mode remains functioning.
2.3.3.9.8 Managing libraries of radionuclides
To download a new library in the device first read it into the
"Spectra Reader" SW from a file in .bn format. Library file is
provided by the device manufacturer in a separate order.
Click "Read library from file" button to open the following
window (Fig.41):
Figure 41 – Reading library of nuclides from file
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