Campbell Scientific LI200X-LC Pyranometer for MetData1 User Manual
Page 5
LI200X-LC PYRANOMETER FOR METDATA1
3
TABLE 4-1. Multipliers Required for Average
Flux and Total Flux Density in Sl and
English Units
UNITS
MULTIPLIER
PROCESS
W m
-2
200
Average
MJ m
-2
t * 0.0002
Total
kJ m
-2
t * 0.2
Total
cal cm
-2
min
-1
0.2 * (1.4333)
Average
cal cm
-2
t * 0.2 * (0.02389)
Total
t = datalogger execution interval in seconds
EXAMPLE 1. Sample Instructions used to Measure an Average Flux
;{CR10X}
;
*Table 1 Program
01:
10
Execution Interval (seconds)
01:
Volt (Diff) (P2)
1:
1
Reps
2:
22
± 7.5 mV 60 Hz Rejection Range
3:
3
DIFF Channel
4:
1*
Loc [ W_m2 ]
5:
200***
Mult
6:
0
Offset
;Set negative values to zero.
;
02:
If (X<=>F) (P89)
1:
1*
X Loc [ W_m2 ]
2:
4
<
3:
0
F
4:
30
Then Do
03:
Z=F (P30)
1:
0
F
2:
0
Exponent of 10
3:
1*
Z Loc [ W_m2 ]
04:
End (P95)
05:
If time is (P92)
1:
0
Minutes (Seconds --) into a
2:
30
Interval (same units as above)
3:
10
Set Output Flag High (Flag 0)
06:
Real Time (P77)
1:
0110
Day,Hour/Minute