CCR wrench kit from the Nasdeck locker.

       Tools to remove the AO threshold. (1/2” ratchet, 13/16” socket)

       Velcro Straps and/or Tie wraps as needed.

       Aluminum Tape

       Lint-free Clean wipes from cleaning supplies.

Text Box: RNAS TO NIRSPAO

 

I.                 COMPUTER ROOM MCP

1.       ALIGN telescope to the following:

a. FOCUS (RT4 NRT2 FOCUS, AZ: 193.410°, EL: 45.0°) OR

b. STOW (RT4 NRT3 STOW, AZ: 175.804°, EL: 45.0°)

2.       ANNOTATE “NO TELESCOPE MOVES” on the MCP white board, Including initials and date.

II.                  AO ENCLOSURE

3.       REMOVE Aluminum tape from AO door seams.

4.       REMOVE cover over ‘light path’ on AO bench enclosure panel.

5.       ATTACH cover to panel below light path.

6.       VERIFY NIRSPAO Optics Table is installed. (Ref. 9114-CA3612).

III.                   RIGHT NASMYTH PLATFORM

7.       REMOVE and STOW safety chains/gates from Nasmyth deck and platform.

8.       FOLD the sides of the canvas dust cover to lay on top of NIRSPEC.

9.       REMOVE the CCR line protection box cover and place on top of NIRSPEC.


10.        CONNECT the handler power plug to the RT4 handler power outlet.

11.        REMOVE cable ties or Velcro straps securing boom cables and lines.


 

IV.                  CONTROL ROOM

13.        OPEN Instrument Tech > Start VNC Viewers.

14.        PULLDOWN Workspace Menu in VNC Viewer. SELECT: NIRSPEC Engineering > RUN testAll.

15.        From workspace menu SELECT: NIRSPEC Engineering > Instrument Temps

16.        VERIFY BENCH1, BENCH2, SCAM, and SPEC temperatures are within a few degrees of the TARGET temperature.

17.        From workspace menu SELECT: NIRSPEC Engineering > @RECONFIG Power OFF@.

18.        From workspace menu SELECT: NIRSPEC Engineering > SHOWPOWER.

19.        VERIFY most outlets are OFF (note: A7, A8, & D2 stays ON).

V.                 RIGHT NASMYTH PLATFORM

20.        DISCONNECT the NIRSPEC Air purge line from the Telescope Instrument Air.

21.        DISCONNECT the following cables and lines on the NIRSPEC Boom from NIRSPEC

a.   DISCONNECT the Glycol lines from the NIRSPEC Cooling Panel [NIRSPEC-Cool].

i.     DISCONNECT Glycol Supply line

ii.   DISCONNECT Glycol Return line

b.   DISCONNECT P1 from J1.

Instrument power cable (boom) to NIRSPEC

c.   DISCONNECT P4 from J4.


DATA/COMM cable (boom) to NIRSPEC

d.   DISCONNECT the tension switch interlock tether (boom) from the NIRSPEC handler post.

e.   INSTALL all available protective caps over exposed connectors, at both panels and cable ends.

VI.                  MECHANICAL ROOM

Text Box: WARNING: TURNING OFF THE NIRSPEC CCRS PROVIDES APPROXIMATELY 60 MIN BEFORE THE DEWAR VACUUM PRESSURE REACHES AN UNACCEPTABLY HIGH VALUE. AT THAT POINT, EITHER THE CCRS NEED TO BE POWERED ON OR A VACUUM PUMP NEEDS TO BE PUMPING ON THE DEWAR. OTHERWISE NIRSPEC WILL LOSE VACUUM COMPLETELY AND WILL NEED TO BE WARMED TO AMBIENT, PUMPED, AND THEN COOLED BACK TO OPERATING TEMPERATURE, A 15 DAY PROCESS.

 

22.        TURN OFF the NIRSPEC CCR compressor using the RED circuit breakers.

23.        COMMUNICATE to NIRSPEC Nasmyth personnel that the power to the CCR compressor and cold heads are powered OFF.

Note the time as NIRSPEC CCR’s should not be off for more than 1 hour.

 

TIME:                             INITIALS:                 

 

VII.                    COMPUTER ROOM (May be completed in parallel with the following tasks on the Right Nasmyth Platform)

24.        MOVE the following cables from TELESCOPE RNAS PLATFORM to AO LNAS PLATFORM on the Instrument Interface Panel (NIRSPEC)

a.   CONNECT P3 to J3

NIRSPEC CCR POWER on Instrument Interface Panel [AO RNAS PLATFORM]

b.   CONNECT P5 to J5

NIRSPEC DATA COMS on Instrument Interface Panel [AO RNAS PLATFORM]

c.   INSTALL all available protective caps over exposed connectors, at both panels and cable ends.

VIII.                     RIGHT NASMYTH PLATFORM (May be completed in parallel with the previous tasks in the Computer Room)

25.        DISCONNECT P2 from J2

CCR power cable (W-O-04) on NIRSPEC Connector Panel [NCP]

Text Box: WARNING: DO NOT DISCONNECT LINES IF THE CCR COMPRESSOR IS RUNNING


26.        DISCONNECT the Helium lines from the NIRSPEC Connector Panel [NCP] using the CCR tool kit.

a.   DISCONNECT CCR Supply Line.

b.   DISCONNECT CCR Return Line.

c.   STOW hoses properly with caps attached.

 

 

FOCUS (NRT2)

27.        FOCUS POSITION (NRT2), SKIP STEP IF MOVING FROM STOW POSITION (NRT3)

a.   COIL boom cables/lines together and rotate NIRSPEC boom, TOWARD the Nas Deck, to the STOW position.

b.   SECURE cables and lines to railing.

c.    LOCK the cable boom deadbolt.

d.   VERIFY that the tracks and instrument are clear of objects/debris between the instrument, the floor, and the end of RT4 track.

e.   TURN ON handler power.

f.    DRIVE NIRSPEC handler to RT4 on the Nasmyth Deck.

g.   TURN OFF handler power.

h.   INSTALL the THREE (3) RNAS Platform NIRSPEC kinematic mount cover plates.

i.     SECURE fall restraint on RNAS port, if not installing another instrument in to NRT2 position.

 

STOW (NRT3)

28.        STOW POSTION (NRT3), SKIP STEP IF MOVING FROM FOCUS POSITION (NRT2)

a.   COIL boom cables/lines together.

b.   SECURE cables and lines to railing.

c.    VERIFY that the tracks and instrument are clear of objects/debris between instrument, the floor, and the end of RT4 track.

d.   TURN ON handler power.

e.   DRIVE NIRSPEC handler to RT4 on the Nasmyth Deck.

f.    TURN OFF handler power.

29.        SECURE safety chains/gates on Nasmyth Platform and Deck.

IX.                  COMPUTER ROOM MCP


Text Box: THERE IS A TELESCOPE INTERLOCK ON THE CABLE BOOM. IF THE BOOM DEADBOLT IS NOT PROPERLY STOWED, THE TELESCOPE WILL NOT MOVE AT FULL SPEED.

 

30.        ALIGN telescope to AO (NLT1-RT4 AO, AZ: 10.48°, EL: 45.0°)

X.                 AO ENCLOSURE / NASMYTH DECK

Text Box: THE AO IS A CLEAN ROOM SO IT IS IMPORTANT TO MINIMIZE THE TIME THE AO ROOM DOOR IS OPEN.

 

31.        REMOVE and STOW safety gates from Nasmyth deck.

32.        REMOVE and STOW door threshold and clip from the outside of the AO.

33.        OPEN the AO door.

34.        CLEAN kinematic mounts with lint-free wipes.

35.        VERIFY that the tracks and instrument are clear of objects/debris between instrument, the floor, and the end of the NLT1 track.

36.        TURN ON handler power.

Text Box: WARNING: CRUSH HAZARD. COLLISION OF INSTRUMENT AND AO BENCH IS POSSIBLE. PERSONNEL IS TO MONITOR THE FRONT OF THE INSTRUMENT AS IT APPROACHES THE AO BENCH. DO NOT DEFINE INSTRUMENT IF IT CONTACTS THE AO BENCH, CALL INSTRUMENT PERSONNEL OR SUMMIT LEAD.

 

37.        DRIVE NIRSPEC handler to NLT1 position in the AO enclosure.

The handler will stop automatically over the kinematic mounts. There will be a tight clearance between the instrument and the AO bench.

38.        VERIFY the kinematic mounts are aligned with the instrument mounts.

39.        CONNECT Helium Lines to NIRSPEC Connector Panel [NCP] using the CCR tool kit.

a.   REMOVE end caps and inspect for debris.

b.   WIPE the threads of the helium line fittings with a lint-free cloth.

c.   CONNECT CCR Return Line.

d.   CONNECT CCR Supply Line.

40.        CONNECT P2 to J2.

CCR power cable (boom) to NIRSPEC Connector Panel [NCP]

XI.                  MECHANICAL ROOM


41.        TURN ON NIRSPEC CCR compressor.

42.        VERIFY the Helium return pressure is approximately 120 PSI and include in daylog.

XII.                   AO ENCLOSURE

Text Box: NOTE THAT ONCE THE CCR COMPRESSOR IS TURNED ON, THE CCR PRESSURE GAUGES ON NIRSPEC SHOULD READ 315 TO 325 PSI ON THE SUPPLY LINE AND 125 TO 140 PSI ON THE RETURN LINE. OSCILLATION IN THE PRESSURE IS NORMAL AS LONG AS THE READINGS FALL WITHIN THE RANGE SPECIFIED. VERIFY THAT YOU HEAR AND FEEL CCR OSCILLATION.

 

43.        VERIFY CCR’s are ON and audible, running properly.

44.        RECORD time.

 

TIME:                             INITIALS:                 

 

45.        CONNECT the following cables and lines from the AO Instrument Interface Panel to NIRSPEC

a.   CONNECT the Glycol lines to the NIRSPEC Cooling Panel [NIRSPEC-Cool].

i.     CONNECT Glycol Return line

ii.   CONNECT Glycol Supply line

b.   CONNECT P4 to J4.

DATA/COMM cable to NIRSPEC aux panel

c.   JOIN loose fiber COVERS together.

d.   CONNECT P1 to J1.

(W-O-05) Instrument power cable to NIRSPEC

e.   CONNECT Air line

Air purge to AO Instrument Interface Panel

f.    VERIFY airflow.

g.   INSTALL all available protective caps over exposed connectors.

46.        VERIFY NIRSPEC structure and covers are clear of the handler for defining.

Text Box: WARNING: MONITOR FOR INTERFERENCE BETWEEN THE INSTRUMENT, THE HANDLER, AND THE AO BENCH, WHILE DEFINING. ENSURE KINEMATIC MOUNTS SEAT PROPERLY.

 

47.        PRESS the DOWN button on side of handler to lower the instrument, until it stops, to

DEFINE the instrument.

48.        TURN OFF handler power.

49.        INSTALL CCR protection box cover.

50.        SECURE all cables with cable ties or Velcro straps.


51.        DISCONNECT the handler power plug from the RT4 handler power outlet, and retract the cable on to the reel on the handler cart.

52.        CLOSE AO door and SECURE clip.

53.        INSTALL the AO door threshold.

54.        TAPE the seams of the AO door with Aluminum tape.

55.        SECURE the Nasmyth deck gates.

XIII.                    CONTROL ROOM

56.        OPEN Instrument Tech > Start VNC Viewers

57.        PULLDOWN Workspace menu in VNC Viewer. SELECT: NIRSPEC Engineering >

RECONFIG Power ON.

58.        From workspace menu SELECT: NIRSPEC Engineering > SHOWPOWER

59.        VERIFY all outlets are ON.

60.        From workspace menu SELECT: NIRSPEC Engineering > Instrument Temps

61.        VERIFY BENCH1, BENCH2, SCAM, and SPEC temperatures are within a few degrees of, or trending toward, the TARGET temperature.

62.        From workspace menu SELECT: NIRSPEC Engineering > RUN testAll

63.        VERIFY instrument status is OK.

Note: Ignore errors on SPEC and SCAM checks.

64.        From workspace menu SELECT: NIRSPEC Engineering > INIT Motors

65.        CONTACT the SA on duty to let them know NIRSPAO is ready for checkout.

XIV.                   For Support Astronomer: CONTROL ROOM or ELSEWHERE WITH NETWORK ACCESS

66.        From a NIRSPEC xterm: “modify –s nsmores instrume=NIRSPAO”

67.        TAKE a test SCAM exposure: xterm: goi2

68.        INSPECT the SCAM image:

a.   RUN Ginga SCAM display: xterm run_ginga_scam

b.   CLICK on “RAW” tab, You should see counts around ~20 DN with noise

Note that usually the first image reads out with all zeros.

c.   TAKE another “goi2”

69.        TAKE a test SPEC exposure: xterm: goi

70.        INSPECT the SPEC image:

a.   RUN Ginga SPEC display: xterm run_ginga_spec

b.   CLICK on “RAW” tab. You should see counts around ~30 DN with noise

Note that usually the first image reads out with all zeros.


c.   TAKE another “goi

71.        INITIALIZE all motor mechanisms: xterm: init_all_motors

72.        CHECK final status: xterm: testAll

XV.                  COMPUTER ROOM / NASMYTH DECK

73.        PERFORM baffle configuration and rebalance telescope, if necessary for the nights observing. Use the following:

a.   9114-CA3600 K2 Instrument Configurations

b.   9114-CA3616 K2 Secondary Baffle Configuration

c.   9114-CA5009 Telescope Balance

d.   LOG results in telescope balance log.

74.        UPDATE white board and record configuration information on the web: Summit Instrument Activity Schedule (SIAS). Include name, date, time, action, and any comments.

 

 

Rev

Date

Author

Reason

A

2020-APR-30

DCHAN

Superseded 114-36-11-E prefix to comply with current

standards. Added check list

B

2020-SEP-23

DCHAN

Modified for new tension switch implementation.

C

2022-APR-28

DCHAN

UPS added for detector electronics. Modified for RECONFIG power command.


Text Box: RNAS TO NIRSPAO CHECKLIST

 

Lead:                                Date:          

I.                 COMPUTER ROOM - MCP

       ALIGN telescope to:

FOCUS (RT4-NRT2, AZ: 193.410°, EL: 45.0°, RIGHT WRAP)

OR

STOW (RT4–NRT3, AZ: 175.804°, EL: 45.0°, RIGHT WRAP)

II.                  AO ENCLOSURE

       REMOVE Aluminum tape from AO door

       REMOVE and STOW AO light path cover

III.                   RNAS PLATFORM

       REMOVE and STOW safety chains / gates from Nasmyth deck / platform.

       FOLD and STOW canvas cover

       REMOVE and STOW CCR Protection cover

       CONNECT handler power to handler power outlet at RT4

Text Box: □	FOCUS (NRT2), SKIP IF MOVING FROM STOW (NRT3)
□	UNDEFINE instrument while watching kinematic mounts & instrument covers
□	UNLOCK cable boom deadbolt

IV.                  CONTROL ROOM

       RUN: RUN testAll

       RUN: Instrument Temps

       RUN: @RECONFIG power OFF@

       RUN: SHOWPOWER. Verify power OFF except A7, A8, & D2.

V.                 RNAS PLATFORM

       DISCONNECT Air Purge line

       DISCONNECT Supply / Return Glycol lines


       DISCONNECT P1 Instrument Power

       DISCONNECT P4 Data/Comm

       REMOVE Tension Switch tether from NIRSPEC handler post.

VI.                  MECHANICAL ROOM

       POWER OFF CCR Compressor and note time:                     .

VII.                    COMPUTER ROOM

       SWAP P3 CCR Power (RNAS) ą (AO)

       NIRSPEC P5 Data/Comm (RNAS) ą (AO)

VIII.                     NAS DECK / RNAS PLATFORM

       DISCONNECT P2 CCR Power

       DISCONNECT He Supply / Return

       FOCUS (NRT2), SKIP IF MOVING FROM STOW (NRT3)

       COIL boom cables/lines, rotate boom to STOW, SECURE cables.

       LOCK cable boom deadbolt

       DRIVE NIRSPEC to RT4

       INSTALL THREE defining point covers

       SECURE fall restraint on RNAS port, if necessary

       STOW (NRT3), SKIP IF MOVING FROM FOCUS (NRT2)

       COIL boom cables/lines, SECURE cables.

       DRIVE NIRSPEC to RT4

IX.                  COMPUTER ROOM

ALIGN telescope to (NLT1-RT4 AO, AZ: 10.48°, EL: 45°)

X.                 AO ENCLOSURE

       REMOVE and STOW safety gates from Nasmyth deck.

       REMOVE and STOW door threshold and clip from outside of AO door.

       CLEAN kinematic mounts

       DRIVE NIRSPEC in to AO

       CONNECT He Return / Supply


       CONNECT P2 CCR Power

XI.                  MECHANICAL ROOM

       POWER ON CCR Compressor and note time:                     .

XII.                   AO ENCLOSURE

       VERIFY CCR (look, listen, feel)

       CONNECT Return / Supply Glycol lines

       CONNECT P4 Data/Comm

       CONNECT P1 Instrument Power

       CONNECT Purge line

       DEFINE Instrument

       INSTALL CCR Protection cover

       DISCONNECT handler power

       CLOSE AO door and INSTALL door clip

       INSTALL threshold

       TAPE interior door

       SECURE safety cables and gates

XIII.                    CONTROL ROOM

       RUN: RECONFIG power ON

       RUN: SHOWPOWER. Verify power ON.

       RUN: Instrument Temps

       RUN: RUN testAll

       RUN: INIT Motors

       CONTACT SA on duty NIRSPEC is ready for checkout

XIV.                   SA CHECKOUT

XV.                  COMPUTER ROOM / NASMYTH DECK

       PERFORM baffle configuration / rebalance, if necessary

       UPDATE white board / SIAS