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Campbell Scientific NR-LITE-L Kipp and Zonen Net Radiometer User Manual

Page 16

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NR-LITE Net Radiometer

'05103 Wind Speed & Direction Sensor measurements WS_ms and WindDir

PulseCount(WS_ms,1,1,1,1,0.098,0)
BrHalf(WindDir,1,mV2500,1,1,1,2500,True,0,_60Hz,355,0)
If

WindDir>=360

Then

WindDir=0


'NR-LITE Net Radiometer (dynamic wind speed correction)

'measurement

NR_Wm2

and

CNR_Wm2


VoltDiff(NR_Wm2,1,mv25,2,True,0,_60Hz,100,0)
If

WS_ms>=5

Then

CNR_Wm2=NR_Wm2*(1+0.021286*(WS_ms-5))

Else

CNR_Wm2=NR_Wm2

EndIf

'Call Data Tables and Store Data

CallTable(Table1)
CallTable(Table2)
NextScan
EndProg

5.3.3 CR10(X) Example Program without Wind Speed Correction

Shown below is an example program written for the CR10(X) datalogger. The
datalogger measures the output from the sensor every 60 seconds and outputs
the average net radiation every hour.

The calibration factor used will only apply for one specific sensor. A new value
will need to be calculated for every different sensor based on the certificate of
calibration for that sensor (see Section 5.2).

Wiring for Example 3


Color


Function

Example CR10X

Program Channels

Used

White Radiation

Signal

1H

Green Signal

Reference

1L

Jumpered to

AG

Clear Shield

G

;{CR10X}

;

*Table 1 Program

01: 60

Execution

Interval

(seconds)

1: Volt (DIFF) (P2)

1: 1

Reps

2: 3**

25 mV Slow Range

;range code for CR10(X) datalogger

3: 1*

DIFF

Channel

4: 1*

Loc [ Net_rad ]

5: 63.29

Mult

;Multiplier for specific sensor

6: 0.0

Offset

;in units of (W m

-2

)/mV (see above)

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