Ceilometer CT25K
CT25K-U059en-2.1 User’s Guide
41
NOTE
"Not enough data", i.e. detection status 99, is reported after a start-up until the
unit has operated for 25 minutes. "Data missing", i.e. detection status -1, is
reported if more than 25% of gathered data is considered invalid due to a
hardware failure.
4.4.8 (Spare)
4.4.9 (Spare)
4.4.10 DMX611 operation (option)
The DMX611 serves as an interface between CT25K buss structure and
Vaisala proprietary ANet and INet busses.
The DMX611 converts CT25K data into binary format. After receiving a poll
request, the DMX611 sends an answer packet containing the requested
CT25K data. While both the poll and answer messages are in hexadecimal
binary format, the user interface is offered by the Testset. The Testset may be
a hand held device or a software application. Refer to AWOS 2000
Maintenance manual for operational instructions.
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