Decagon Devices DS-2 운영자 매뉴얼 - 페이지 9

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3 CONNECTING THE ANEMOMETER

Connecting the Anemometer

The DS-2 Sonic Anemometer is most easily used with Decagon's

Em50, Em50R, and Em50G loggers (ﬁrmware version 2.11 or later).

Note: The DS-2 requires continuous excitation, which is only avail-

able on Em50 loggers with serial numbers above EM20,000 and Em50G

loggers above 5GOB1000. Please contact Decagon support if you need

more information.

They can also be used with other data loggers, such as those from

Campbell Scientiﬁc, Inc. The DS-2 requires an excitation voltage in

the range of 3.6 to 15 volts.

To download data to your computer from an Em50 logger, you will

need to install ECH

following software supports the DS-2 sensor:

Em50 Firmware version 2.11 or greater

ECH

O Utility 1.67 or greater

DataTrac 3.8 or greater

ProCheck hardware revision 'C' with ﬁrmware version 1.5.1

Note: Please check your software version to ensure it will support

the DS-2. To update your software to the latest versions, please visit

Decagon's support site:

To use the DS-2 with your Em50 data logger, simply plug the stereo

plug into one of the ﬁve ports on the data logger and use either

ECH

O Utility, or DataTrac 3 software (see respective manuals) to

conﬁgure that port for the DS-2 and set the measurement interval.

The Em50 and Em50R data loggers only allow logging at one minute

intervals and the Em50G data loggers allow logging at ﬁve minute

intervals. For any measurement made at frequencies longer than 10

seconds, the DS-2 will report 10 second averages. Thus, when using

an Em50 or Em50R logging at one minute intervals, each reported

value will be the average of six, 10 second averages from the instru-

ment. When using an Em50G at ﬁve minute intervals, each reported

O Utility or DataTrac 3 on your computer. The

http://www.decagon.com/support/.

DS-2