Cooling the CCD

Verify the following:

1. The vacuum in the CCD is good
2. CryoTiger hoses are attached correctly
3. CryoTiger gas pressure is good

Start continuous read on the CCD

You can telnet to the CCD controller and start the process directly:

% telnet monts1 2200
 ok
0 LINES
STARTSCAN

Or you can issue the command from mop:

mop> cc 0 lines
mop> cc startscan

This starts the CCD reading continuously.

Turn on the CryoTiger

Throw the switch on the front of the compressor. The gas pressure should drop to about zero in a few seconds.

Watch it cool

Use the 0 TCHECK (or cc 0 tcheck from mop) command to watch the temperature drop. CCD operating temperature is -93 or -94 C; it'll take 2-3 hours to get there.

Stop continuous read

Do this by rebooting the controller:

 ok
COLD

Or from MOP:

mop> cc cold

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