Veris Technologies VIS_NIR Spectrophotometer Probe - Operating Instructions - Manual (Page 76)

OM17-P4000VIS-NIR
7-16
The fuse for the auxiliary case protects the voltage for the electrical conductivity board
and the lamp. To replace the fuse open the case and locate the black fuse holder
Figure 16
Internal wiring of auxiliary case
Checking Spectrometer Input Voltage and Hamamatsu Voltage
Figure 17
Fuse holder. Replace only with a
4-amp fuse.
Connect negative lead from
voltmeter here (brown wire)
Connect the positive
lead from the voltmeter
here (white wire)
Voltage should read 5V, as
long as spectrometer case is
within temperature range.