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: 26.685792000000003
dt[ms]=    0.000 
dt[ms]=    1.027 
dt[ms]=    2.306 
dt[ms]=    1.075 
dt[ms]=    2.307 
dt[ms]=    1.062 
dt[ms]=    2.301 
dt[ms]=    0.952 
dt[ms]=    2.302 
dt[ms]=    1.070 
dt[ms]=    2.316 
dt[ms]=    1.063 
dt[ms]=    2.283 
dt[ms]=    1.089 
dt[ms]=    2.302 
dt[ms]=    0.950 
dt[ms]=    2.315 
dt[ms]=    1.058 
dt[ms]=    2.302 
dt[ms]=    1.077 
dt[ms]=    2.301 
dt[ms]=    0.944 
dt[ms]=    2.317 
dt[ms]=    1.062 
dt[ms]=    2.302 
dt[ms]=    1.070 
dt[ms]=    2.303 
dt[ms]=    1.075 
dt[ms]=    2.310 
Acquring readoutnoise patterns
The readoutnoise patterns acquired  112.50594824002135
end
Detected device change on USB
The interface was claimed successfully.
Closing interface 0.