Service Diagnostic Software
Figure 9.14 zero order Window
Seek zero order
1. Used to check alignment on a calibrated instrument. The control will be enabled after seek Limit
Switch is performed. It moves the grating a set number of steps from the limit switch to where the
instrument thinks zero order is located. The Adjust Zero Order slider allows a +/- 100-step
adjustment.
2. Left-click on the Seek zero order button.
3. If the zero order is correctly set, the light beam will be centered on the exit slit.
4. If not, left-click and drag the Adjust zero order Slider to adjust the position of the light beam
between flashes (should see maximum energy value on window). The controls are disabled while
the instrument is flashing. Un-check the Flash box or grab the slider when the controls are enabled
to change the grating position.
Do not turn the instrument off while flashing. Close the window and
then turn off the instrument.
5. If the beam is too far from the slit to allow this adjustment, then perform the physical mirror
adjustment with the ZOGH tool.
Flash Xenon
1. This control is used to flash the Xenon lamp for optical alignment.
2. Click Flash Xenon to start flashing the lamp at the maximum allowed rate.
3. Click OK to stop.
Detector board Diagnostic
1. The Sample Energy and Reference Energy readouts display the raw counts from the A/D converter
minus dark current for the respective channel. The capacitor and voltage settings are used to
compensate for different energy levels at different wavelengths, or different amounts of light hitting
the detector(s). They are normally set automatically when the instrument is zeroed, or measure
blank is pressed. The detector circuit uses an integrator circuit. Changing the number for the
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