Linux native USB library loaded.
spectrometer type: HR2000+ s/n: HR+C1886 number of channels: 1 firmware: 3.30.0 
Integration time 1.67 [ms], number of spectra 29 Sampling time 50000.0
Number of pixels: 2048
acquiring the readoutnoise patterns
Loop 1 of infinite
Waiting on trigger
Spectra acquired
Background acquired
Spectra acquired
board temperature: 25.935840000000002
dt[ms]=    0.000 
dt[ms]=    1.152 
dt[ms]=    2.303 
dt[ms]=    1.049 
dt[ms]=    2.313 
dt[ms]=    1.056 
dt[ms]=    2.360 
dt[ms]=    0.921 
dt[ms]=    2.284 
dt[ms]=    1.089 
dt[ms]=    2.319 
dt[ms]=    1.055 
dt[ms]=    2.337 
dt[ms]=    1.037 
dt[ms]=    2.315 
dt[ms]=    0.908 
dt[ms]=    2.329 
dt[ms]=    1.072 
dt[ms]=    2.302 
dt[ms]=    1.075 
dt[ms]=    2.313 
dt[ms]=    0.937 
dt[ms]=    2.322 
dt[ms]=    1.022 
dt[ms]=    2.308 
dt[ms]=    1.088 
dt[ms]=    2.326 
dt[ms]=    1.052 
dt[ms]=    2.308 
Acquring readoutnoise patterns
The readoutnoise patterns acquired  113.48021124341975
end
Detected device change on USB
The interface was claimed successfully.
Closing interface 0.