Team required :      2 Electronics Specialists
                              2 Mechanical Specialists
                               1 Weightlifter

Nominal  time :       6 hours


Instrument mounting

Tick each box when complete	Tick box
1. IMPORTANT  Position the telescope for change: PARK ZENITH
2. Make entry in log book:         DO NOT MOVE TELESCOPE
3. Lock off the telescope (Control Room).
4. Turn the Cassegrain rotator to correct angle and line up the marks on ISIS and the A&G box.
5. Put telescope ties in on the GRACE side.
6. Remove all connections to the instrument to be removed.
7. Move instrument handling trolley under instrument, align & attach.
8. Unbolt and remove instrument.
9. Check that ISIS lid is open.
10. Move ISIS into place and bolt on. ONE person only to check all bolts are tight.
11. Lift down and store trolley.
12. Balance telescope. NB this should be done after cabling up and switching on ISIS and the CCD controllers. Pre-testing can then be carried out during balancing.

 

Instrument Cabling

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13. Connect the ISIS air supply.
14. Connect the ISIS 4MS Network and Engineers' ports to the portserver and the RS232 box (labelled ISIS) respectively.
15. Connect the ISIS EPICS crate to the DECNET.
16. Connect and switch on the ISIS mains.
17. Switch on : ISIS 4MS, ASL unit, ISISP EPICS crate and SMDM 24v power supply.

 

ISIS CCD mounting

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18. Clean the CCD Cryostat windows.
19. Clean the camera lenses.
20. Ensure the correct length filler tube is fitted in each cryostat. HALF LENGTH tubes are needed for cryostats mounted on RED and BLUE.
21. Set the capstans A, B & C and the rotation for each cryostat using the micrometers as per the 'Capstan Settings Book'.
22. Clamp the capstans in correct order i.e.  1st  A - the hole, 2nd  B - the slot, 3rd C - the flat. To PREVENT FORMING AN EARTH LOOP: Ensure the micrometers including the D rotation micrometer are wound back and are not touching the frame. Also check that the clamps have insulating material fitted where they make contact with the capstan screws. CHECK isolation using a multimeter before connecting any cables to the cryostat.
23. Connect air and set cryostat window flushing to ~50 litres/hour.

 

ISIS CCD connections

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24. Connect the mains to the RED SDSU PSU.
25. Connect an SDSU power cable between the RED SDSU controller and the RED SDSU controller PSU.
26. To be done be member of detector group taking anti-static precautions: Connect the RED CCD main signal cable static protection box to the RED SDSU controller.
27. Connect the RED temperature cable between the RED SDSU controller and the RED cryostat.
28. Connect the RED shutter cable from ISIS RED shutter to the RED shutter control box and the other shutter cable from the the RED shutter control box to the RED SDSU controller.
29. Connect an ID cable between the RED cryostat and the RED SDSU controller.
30. Connect the 2 fibres from the RED controller back to the appropriate SPARC in the control room.
31. Connect the mains to the BLUE SDSU PSU.
32. Connect an SDSU power cable between the BLUE SDSU controller and the BLUE SDSU controller PSU.
33. To be done be member of detector group taking anti-static precautions: Connect the BLUE CCD main signal cable static protection box to the BLUE SDSU controller.
34. Connect the BLUE temperature cable between the BLUE SDSU controller and the BLUE cryostat.
35. Connect the BLUE shutter cable from ISIS BLUE shutter to the BLUE shutter control box and the other shutter cable from the the BLUE shutter control box to the BLUE SDSU controller.
36. Connect an ID cable between the BLUE cryostat and the BLUE SDSU controller.
37. Connect the 2 fibres from the BLUE controller back to the appropriate SPARC in the control room.
38. Switch on RED and BLUE SDSU controller PSUs and Shutter control PSUs.

 

ISIS post installation checks

Tick each box when complete	Tick box
39. Coffee Break.
40. At the instrument engineering terminal switch box (right knob) select CASS INST. and using the right hand VT220 terminal type .SLINKS This will test communication to each of the SMDMs and the encoder channels. Any faulty serial links will be listed. A faulty link to SMDM M ( that's a CAPITAL M ) can be ignored.
41. Still at the engineering terminal type ILS and CONFIG. These both give useful information about the health of the instrument.
42. At the telescope use the buttons on the front of the RED and BLUE shutter control boxes to test the operation and status from the shutters.
43. Bring up a window on the ICS and type ping isisp to check that the Epics ISIS Polarisation crate is on the network.

 

Final checks though ICL and ICS

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44. Edit the detector configuration (DEWARS web page).
45. Restart the observing system..
46. Update the magnet board.

 

Check each mechanism and tick each box when complete	Tick box
Open the grating doors and check that each set of grating clamps works correctly. Then ensure that the clamps are on before closing the door. 47. Red Grating (this should only be done after a change and not mid-run; you will be disturbing the instrument set-up). By default use the R158R grating and then use the command: setgrating red r158r
inrg
setgratingorder red 1
cenwave red 4500
cenwave red 6500
48. Red Collimator (this should only be done after a change and not mid-run; you will be disturbing the instrument set-up).
inrcoll
rcoll 28000
rcoll 9100
49. Red Fold
ensure the Red Fold is IN (4MS: FDR SEE; position 1; no fault, don't move)
50. Red filter A
isis_init -m REDFILTERA
rfilta 2
rfilta 1
51. Red Filter B
isis_init -m REDFILTERB
rfiltb 1
52. Red Hartmann Shutter
rhart 3
rhart 0
53. Blue Grating (this should only be done after a change and not mid-run; you will be disturbing the instrument set-up). By default use the R300B grating and then use the command: setgrating blue r300b
inbg
setgratingorder blue 1
cenwave blue 6500
cenwave blue 4500
54. Blue Collimator (this should only be done after a change and not mid-run; you will be disturbing the instrument set-up )
inbcoll
bcoll 28000
bcoll 5200
55. Blue Fold
inbfold
bfold 2
56. Blue Filter A
isis_init -m BLUEFILTERA
57. Blue Filter B
isis_init -m BLUEFILTERB
58. Blue Hartmann Shutters
bhart 3
bhart 0
59. Slit Carriage Unit
mslit
longslit
60. Set Slit Width (this should only be done after a change and not mid-run; you will be disturbing the instrument set-up )
slit 100
slit 5000
slitarc 1.0
61. Dekker Slide
indek
dekker n  (where n = 1 ... 8; use 'dekker 8' by default)
62. Field Lens, Calcite Block and Polaroid Tray
infcp
isis_move -m fcptray polaroid
isis_move -m fcptray fieldlens
isis_move -m fcptray calcite
isis_move -m fcptray clear
63. Slit Door ( NB the dekker must be at position 1 for access to the slit area )
slit_door unlock
slit_door lock
64. Quarter Wave Plate
inqw
isisp_move -m PQWSLIDE in
isisp_move -m PQWSPIN 0.5
isisp_move -m PQWSPIN 0
isisp_move -m PQWANGLE 10
isisp_move -m PQWANGLE  300
isisp_move -m PQWSLIDE out
65. half Wave Plate
inhw
isisp_move -m PHWSLIDE in
isisp_move -m PHWSPIN 0.5
isisp_move -m PHWSPIN 0
isisp_move -m PHWANGLE 10
isisp_move -m PHWANGLE 300
isisp_move -m PHWSLIDE out
Take an arc with each arm. If arc lines are obtained then it is time to hand over to the SA to perform the final focussing.
INSTRUMENT CHANGE COMPLETE Signature:                                   Date:
HANDOVER TO  SUPPORT ASTRONOMER               Signature:                                   Date: