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To input the correct value for the sensitivity, divide the sensitivity displayed on the solar irradiance sensor by the scale factor as shown
below.
Some sensors have sensitivities specified in Wm
below.
Then convert the mV to µV by multiplying by 1000.
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The value put into the register for a sensor with 20.00 Wm
BAUD RATE (REGISTER 205)
The PVmet-500can operate at two different baud rates, 9600 and 19200. Register characteristics are shown in Table 1.
#
Name
Type
205
1
Baud Rate
uint16
The default baud rate is 9600. The baud rate can be optionally increased to 19,200 baud. Write either 9600 or 19200 to this register.
The baud rate change takes effect after a reboot or power cycle.
WIND SENSOR SELECTION (REGISTER 206)
The PVmet-500supports either the RainWise Miniaervane or ultrasonic wind sensor. The default selection for register 206 is a 0 which
is the RainWise Miniaervane. Writing a 1 to register 206 will enable ultrasonic wind sensor support.
#
Name
Type
206
1
Wind Sensor
uint16
(������������ ����������������������)
���������� ������������
��������������:
-2
/mV which must be converted to µV/Wm
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����
=
−2
( ������������ ���������������������� ) ����
−2
��������������: 20.00 ����
⁄
����
Table 8: Device settings baud rate register
Units
Scale Factor
-
-
Table 9: Device settings wind sensor selection register
Units
Scale Factor
-
-
μV
⁄
����
−2
= ���������������� ����������
μV
⁄
5.00
����
−2
= 500
0.01
⁄
→
����
−2
( ( ������������ ���������������������� ) ����
1000����
−2
����
→
=
20.00����
−2
20.00����
-2
/mV would be 50 µV/ Wm
Contents
R/W
9600
R/W
Contents
R/W
0
R/W
- 21 -
-2
by inverting the sensitivity as shown
����
−2
)
1000
=
(������������ ����������������������)
1000����
����
⁄
= 50
����
−2
-2
/ 0.01 = 5000.
Description
Baud Rate, 9600 or 19200
Description
Wind Sensor Selector, 0 = prop, 1 = ultrasonic
����
⁄
����
−2
−2
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