Jenway 6300 Ser Man
42
320nm Energy
, In the Diagnostics Mode (see Section 7.1 Diagnostics
Mode) set the wavelength to 320nm, close the Dark Shutter by pressing
the right arrow key. Allow the mV reading to stabilise and record the
stable value.
Open the dark shutter by pressing the right arrow key and the mV reading
must increase by more than 4mV from that recorded above.
If not the lamp should be changed, if it still has not improved then the
condition and alignment of the optical components should be checked.
Dark Current
, Set wavelength to 320nm, Dark Shutter closed, IR stray
light filter closed, Voltage Display should be zero +/- 6mV.
If not and no light leaks are obvious (damaged seals around sample
chamber, lid not closing fully, damaged or poorly fitted casework etc)
then the detector or detector PCB may be faulty.
720nm Output
, Set wavelength to 720nm, Dark Shutter open, IR stray
light filter open, Voltage Display must not be greater than 3600mV.
If greater than 3600mV check the lamp, lamp supply voltage, other power
supply levels and detector PCB.
8.5 Wavelength Calibration
Equipment Required
; - A certified wavelength standard, i.e. Holmium
Oxide Filter, Holmium Perchlorate Solution etc. (See Section 8.8.1)
Wavelength calibration can be carried out in the Diagnostics Mode using
the wavelength (zero order) offset function. Do not carry out the
following procedure without a suitable, certified wavelength calibration
standard.
Turn the unit on and allow the Start Up tests to complete.
Use the up and down arrow keys to select a wavelength about 10nm
below the certified wavelength of the filter or standard to be used.
Select the absorbance or transmission modes, using the right or left arrow
keys, depending on whether an Absorbance or transmittance standard or
filter is being used.
