Campbell SAT ARGOS Manual de usuario Pagina 299

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ZENO
®
-3200 USER MANUAL
Coastal Environmental Systems (206) 682-6048 Page C-23
12. VAISALA
300
425AH OR 425AHW ANEMOMETER
The Vaisala 425AH anemometer is a SDI-12 sensor.
301
When it powers up, it boots up in "Sub-mode A",
which means it operates as a regular SDI-12 sensor.
If you require using this sensor as a Continuous SDI-12 Sensor
302
, the Vaisala 425AH anemometer needs
to be initialized into "Sub-mode B" immediately after it powers up, which requires a series of custom
SDI-12 commands.
303
A General Serial Script Sensor
304
can be used to send the series of SDI-12
initialization commands. This example illustrates this procedure.
Settings to Collect Data From Vaisala 425AH Sensor on COM2
ITEM DATA
COMMAND ENTERED
Item 1: Sensor Type code = 17 (Continuous SDI-12)
c1/17
Item 2: Sensor Name = 425AH
c2/425AH
Item 3: Sensor Input Channel = COM2
c3/COM2
Item 10: Sensor Sample Count = 8
1
c10/8
1
Item 11: Maximum Sensor Readings = 1
c11/1
Item 12: Sensor Timing Loop = 1 (0.5 seconds) DEFAULT
Item 16: Retry Count = 2
c13/2
Item 17: SDI-12 Address = 0
2
DEFAULT
Item 18: Port Type = RS485 DEFAULT
Item 19: Baud Rate = 1200 DEFAULT
DEFAULT = Default Data: it is not necessary to enter a command for this Item.
1 Set the Sensor Sample Count equal to the number of outputs returned by the sensor (between 1 and 9). This
configuration assumes that the sensor returns 4 values.
2 A different value should be used for each sensor being connected to the ZENO
-3200. You may have to change
the SDI-12 address of one or more of the sensors: go into SDI-12 pass-through mode to do this.
Settings to Initialize Vaisala 425AH Sensor on COM2
300
This sensor was formerly produced by Handar.
301
Refer to Section 10.3.4.
302
Ibid.
303
Refer to the Vaisala 425AH Anemometer User Manual.
304
Refer to Section 12.2.
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