
EKO INSTRUMENTS CO., LTD. - Pyranometer MS-60/60S - Instruction Manual Ver. 4
Pg. 33
Sensitivity
10
Temp. Correction
Temperature compensation. Compensated based on the temperature data,
which temperature characteristics caused by the change of ambient temperature,
measured with pt100 and the 4 temperature correction factors [a, b, c, and d]:
ETC [E, T]
=
E
/
TC1 [T]
,
TC1 [T]
=
a + b
x
T + c
x
T
2
+ d
x
T
3
ETC [E,T]
: Measurement voltage that compensated the temperature
E
: Measurement voltage
TC1[T]
:
correction factor
T
: Measured temperature [Internal]
a, b, c, d
: Correction factor
Default values {a: 1,
b
: 0,
c
: 0,
d
: 0}: Setup that does not use linearity correction
Linearity correction is not used in the default setting. Unless there is any special
reason, it is recommended not to change this setting.
11
Linearize
Linearity correction. When you want to change the output linearity against the
solar irradiance, it can be corrected using 4 linearity correction factors [
k1, k2, k3,
k4
]. To compensate, setup each item for the approximation used for
compensation like below formula.:
I
= [
k1
+ [
k2
x
ETC [E, T]
+ [
k3
x
ETC [E, T]
2
] + [
k4
x
ETC [E, T]
3
]] /
S
I
:
Solar irradiance after the linearity correction
ETC[E,T]
: Measurement voltage after the temperature compensation
mentioned above.
S
:
Pyranometer sensitivity
k1, k2, k3, k4
:
Correction factor
[Ex.] If
k1
is changed, offset output [
μV] can be changed.
Default values {
k1
: 0,
k2
: 1,
k3
: 0,
k4
: 0}: Setup that does not use linearity
correction
Linearity correction is not used in the default setting. Unless there is any
special reason, it is recommended not to change this setting.
12
Analog output
Switches the analog output. Select from: OFF/ 0-1V /4-20mA
13
Load Resistor
Enter the actual value for 1
00Ω that is used during 0-1V output.
14
0V to 1V
Setup the solar irradiance [W/m
2
] corresponding to 0-1V output.
[Default: 0V=0W/m
2
、
1V=1600W/m
2
]
15
4-20mA
Setup the solar irradiance [W/m
2
] corresponding to 4-20mA output.
[Default: 4mA=0W/m
2
、
20mA=1600W/m
2
]
16
Read Memory
Reads and displays the information on #1 to 15 from the memory.
17
Save Memory
Writes the changed contents to MS-60S memory. To save the changed contents
permanently, press Reboot.
18
Reboot
Reboot.
19
Load File
Reads the configuration from the file. The file name is
“XXX.xml”
20
Save File
Writes the current configuration to the file. The file name is
“XXX.xml”
21
COM Setting
Opens the communication setting window.