CM3 Pyranometer
9
4: Z=F x 10^n (P30)
1:
0.0
F
2:
00
n, Exponent of 10
3:
1
Z Loc [ MJ_m2____ ]
5: End (P95)
6: If time is (P92)
1:
0
Minutes (Seconds --) into a
2:
60
Interval (same units as above)
3:
10
Set Output Flag High (Flag 0)
7: Real Time (P77)
1:
1220
Year,Day,Hour/Minute (midnight = 2400)
8: Totalize (P72)
1:
1
Reps
2:
1
Loc [ MJ_m2____ ]
*Table 2 Program
02: 0.0000
Execution Interval (seconds)
*Table 3 Subroutines
End Program
6. Maintenance
On a monthly basis the level of the pyranometer should be checked. Any dust
or debris on the sensor window should be removed. The debris can be removed
using water (de-ionized or distilled) or alcohol.
7. Calibration
Recalibration is suggested every two years. Calibrations can be done in one of
two ways.
One method is to calibrate the sensor in the field by placing a “transfer
standard” (a sensor that has been calibrated against a “secondary standard”)
next to the sensor being calibrated. Preferably daily totals of several days
should be compared. The calibration factor could be corrected if results differ
by more than six percent.
Another method would be to send the sensor to a facility that has a “secondary
standard”. Contact Kipp & Zonen (
) for the nearest
calibration facility, or send it to Campbell Scientific and they will have it
recalibrated.
Summary of Contents for CM3
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