Jenway 6300 Ser Man
40
17
If a peak mV reading can be obtained /- 2nm of the zero
point calibrated by this procedure then press the <CAL> key twice
when this peak mV reading is obtained. If the peak reading is
obtained at a wavelength greater than +2nm or less than –2nm then
the above alignment procedure should be repeated. When OK
replace the four screws in the base section.
18
A wavelength calibration must now be carried out (see Section 8.5)
and then a full performance verification as detailed in Section 8.8.
Grating Position Sensor
Operation and adjustment can be checked and carried out as follows;
Remove the top half of the case by undoing the four recessed screws in
the corners of the base.
Place the top half of the case behind the base, taking care not to trap or
strain the connecting cables.
Taking all precautions to avoid the risk of electric shock, connect the
power cable and depress the right arrow key [>] while turning the power
switch on.
The display should show a mV reading on the top row, followed by the
wavelength on the 2
nd
row and %T at the bottom left hand side.
Connect the positive lead of a voltmeter to the anode of D4 on the power
supply PCB and the negative lead to the black analogue output socket on
the rear panel. (The anode of D4 is the contact close to SK3 that is also
connected to the plate through hole between D4 and SK3). Select a range
suitable for measuring up to 5V dc.
Press the down arrow key to reduce the wavelength to –30nm, the
voltmeter should read approximately 0.100V, Press the down arrow key
again to reduce the wavelength to –40nm, the voltmeter should still read
approximately 0.100V.
Press the down arrow key again to reduce the wavelength to –50nm, the
voltmeter should now read approximately 5.00V. Press the up arrow key
and return the wavelength setting to –40nm and the voltmeter reading
should return to approximately 0.100V.
