Campbell Scientific LI200X-LC Pyranometer for MetData1 - 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