Changes

5. * Test the CCD functionality as follows:a. # On the Main View, Panel 4 (Fig. 10) set “Exposure Type” to BIAS, “# Exposures” to 1, and click “Expose”. The CCD raw image should look something like Fig. 13, with an average count around 600 (mouse-over image).b. # Check the CCD temperatures (Engineering View tab, Panel 3 (Fig 12): CCD 167.8K, cold finger 85K (both ±0.5K). At the first fill the cold finger takes ~20 minutes to reach 94K then another ~1 hour to settle at 85K, and the CCD takes ~3 hours to reach 167K. Raw Image in the top pane, transect through the spectrum in the lower pane* Initialise the PLC controlled mechanisms: Advanced tab, Panel 1 (Fig. 11) click the “INIT ALL – PLC subsystem” button to initialise the PLC system.* Check the instrument moving parts. Note that items a – f are best checked by clicking directly on the relevant items on the Main View tab, Panel 6 (Fig. 10):# Move the offset guide mirror IN/OUT of beam.# Move the comparison ARC mirror IN/OUT of beam.# Switch the ARC lamps (1 & 2) on/off.# Check the slit illumination: with guide mirror OUT beam use the acquisition camera viewing system to check the slit illumination on/off control.# Check the Hartmann Shutters (A & B) operation (ignore warning – it will disappear after a few seconds).# Check the rear of slit mirror. a. b.

Raw Image in the top pane, transect through the spectrum in the lower pane 6. Initialise the PLC controlled mechanisms: Advanced tab, Panel 1 (Fig. 11) click the “INIT ALL – PLC subsystem” button to initialise the PLC system.7. Check the instrument moving parts. Note that items a – f are best checked by clicking directly on the relevant items on the Main View tab, Panel 6 (Fig. 10):a. Move the offset guide mirror IN/OUT of beam.b. Move the comparison ARC mirror IN/OUT of beam.c. Switch the ARC lamps (1 & 2) on/off.d. Check the slit illumination: with guide mirror OUT beam use the acquisition camera viewing system to check the slit illumination on/off control.e. Check the Hartmann Shutters (A & B) operation (ignore warning – it will disappear after a few seconds).f. Check the rear of slit mirror.