Attention: please read this message!

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The IRCAM dewar temperature monitor has sent this alarm message because
the dewar is apparantly warming up.  This camera is serviced with a timed
LN2 autofill system that runs for 20 min. at 0900 HST daily.  The autofill
may have malfunctioned, due to an empty LN2 supply or other reasons.

If the subject line of this e-mail alarm message does not contain
a temperature, in the form "IRCAM Temp:91.75K,A", then the alarm
may be the result of lost communication to the Lakeshore temperature
readout.  In that case, the dewar may not be warming up, but the loss
of communication means that it is not possible to remotely monitor it,
and there will be no advance warning about a warm up condition.
  
It is very important that the IRCAM does not warm up.  If you are able
and willing, please follow these instructions to troubleshoot the problem.
If you cannot directly respond, or require assistance, call Tom Bida
(525-1313), John Noble (526-2662), Brian Taylor (525-0451), or Ted Dunham
(522-8359) immediately.

1. The camera is located in the 72" dome.  Go to it and read the
temperature on the Lakeshore temperature sensor display:

 * If T < 150 K, then it is OK to fill the dewar.  Continue with step 2. 

 * If T > 150 K, the camera dewar should be left alone to warm to ambient,
   so it can go through a bake/pump cycle.  If the camera must be warmed
   up, turn off the supply valve on the 160 liter dewar to prevent fills.

2. If the dewar is to be filled now, determine why the autofill failed:

  - Is the supply dewar valve open?  If not, open it, and initiate a
    manual fill by hitting the ON/OFF button on the timer.  The manual
    fill must be watched for approximately 20 minutes, and is stopped
    by hitting the timer ON/OFF button again when LN2 starts flowing
    out of the vent tube.

  - Is the supply dewar empty?  If so, and a backup 160 liter dewar
    is available, move the solenoid valve assembly, which is connected
    to the IRCAM fill line and tube, from the empty to the full supply.
    Initiate a manual fill as described above.

  - Is there power supplied to the solenoid valve, through the
    timer?  If either the timer or valve is unplugged, restore power
    and initiate a manual fill as described above.

3. Respond to the alarm by e-mail to '72failure' with your actions
and the camera status.  Also, call Tom Bida (525-1313) to report the
autofill failure.

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    This alarm message will be sent every 10 minutes to '72failure' and 
        '42failure' until the camera temperature drops below 85 K.