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8
BREWER SCHEDULES - SE, SKC, SK
A most important feature of the Brewer is its capability to run for longs periods of time in an
unattended state.
The Brewer system is able to achieve this Automatic operation the use of Schedules Operation.
A schedule is simply a file containing a list of instructions which the Brewer software executes.
A series of commands is triggered by the Sun reaching a Solar Zenith Angle (SZA) as prescribed
by the Scientific Authority for the observation site.
Scheduling Hints and Conventions:
Schedules are created or altered using the SE command.
•
While in SE, the ^ (shift 6) keys may be used to turn on a flag which causes the Ins and Del
•
keys to insert or delete full lines.
The SA command is a convenient tool for relating the time (GMT) to the SZA.
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In schedule convention, SZA before noon are considered to be -ve, and after noon they are
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+ve.
Schedule names follow DOS rules, and automatically are given the SKD extension.
•
An ED is invoked automatically at solar midnight by the SKC routine so an additional ED
•
need not be programmed into the schedule.
Schedules may be "linked"
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when running a schedule under SKC, the schedule automatically starts the next day.
•
when running a schedule under SK, the schedule does not automatically start the next day.
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all entries in a schedule are keyed to the SZA, even if they are 'moon' measurements.
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only two character commands can be used in a schedule
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an integer can be entered at the end of a command line to indicate how many times the
•
command line is to be repeated i.e. DSZSDS3 will cause the commands DSZSDS to be
repeated three times.
the next SZA will interrupt the current command line when the command in process is
•
finished.
the HPHG sequence is normally inserted such that the internal temperature of the Brewer
•
does not change more that 2°C between HG's.
HG commands should also be done more frequently in sections of the schedule that have much
micrometer movement i.e. UV and UM.
8. BREWER SCHEDULES – SE, SKC, SK
MKIII OPERATOR'S MANUAL
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