Changes
74 Inch
,/* Vacuum Pumping and LN2 filling: */
==SPUPNIC ON==
notes might not be 100% accurate……
===Checklist:===
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''TODO: CLI startup & general computer interaction''
[[File:SPUPFig1.JPG]]
Note in Fig. 1 keyboard/mouse peripherals have been omitted for clarity
==='''Vacuum Pumping and LN2 filling:'''===
# The day before, connect the vacuum pump using the 500mm long vacuum hose (see Fig. 1) and pump-down overnight.
# The next morning, check that the vacuum got down to the 10-6 mbar range.
# Continue filling slowly until full, indicated by LN2 boiling in the outer funnel. When full, using a glove, quickly remove the inner funnel and dump the excess LN2 back in the filling flask.
# Ensure that the telescope is switched OFF
# Mount the instrument on the telescope (mechanical responsibility)
# Mount XYslide and Acquisition/autoguider camera
# Connect cabling and services:
# Numbered list item
* At the instrument services panel (Fig. 2), connect the instrument mains supply, compressed air feed, and RS232 comms cable.
* Check that the air pressure is 600KPa at the south pier and 300KPa on the instrument. See Fig. 5
'''In the Warm Room:Install the computer systems as per Fig. 7 below. '''
* Install the computer systems as per Fig. 7 below.
* Fire up the TCS software and check functionality as follows:
# Check that the XY slide initializes correctly (reset button on the emergency stop box on the north pier)
# Lodestar Acquisition CCD camera operational – start exposures, check the readout occurs properly. (Note that the regular control box for the acquisition mirror is empty since it is not present.)
* On the SpUpNIC computer:
# Ensure that the SpUpNIC fibre is plugged in. When the fibre is correctly connected AND BOTH the computer and CCD controller are powered up, a green LED is ON on the interface (Fig 8).
# Ensure the dual monitors, keyboard & mouse are connected.
# Ensure the LAN cable and RS232 connector (to the PLC) are connected (Fig. 8).
* Check that the Lodestar industrial PC is installed (Fig. 7).
* At the back of the TCS-rack:
# check that the RS232 PLC cable is connected to the fibre, and the channel selector switch is correctly set (Fig 9, bottom insert box).
# check that the USB connection to the Lodestar rear-of-slit camera is plugged in to the USB-to-fibre convertor (Fig. 9, top insert box).
# check that the USB connection to the Lodestar acquisition camera is plugged in to the USB-to-fibre convertor, located on the right-hand side of the rear-of-slit camera fibre convertor.
'''Check out the software/instrument functionality:'''1. * Power up the SpUpNIC PC (if not already running).2. * Log in: User name: CCD - the usual password.3. * Launch the instrument software by single clicking on the two desktop icons (in the sidebar):
SpUpNIC SpUpNIC QuickLook
Note: You will be navigating between three tabs (top-left of Monitor 1) on the SpUpNIC Instrument Control GUI. Figs. 10, 11 & 12 show the Main View, Advanced and Engineering View tabs respectively.
The following three items are operated from the Main View tab, Panel 2 (Fig. 10). Select a value/number and click “Go”:
8. Do an ARC test exposure:a. Slit width 1.5” (slit setting 10).b. In the Main View tab, panel 2 (Fig. 10) check which grating is currently mounted and set the corresponding grating angle as per table 1:
Table 1: Suitable grating angle for a reasonable ARC exposure
Grating Number Angle