Campbell SP-LITE Bedienungsanleitung PDF herunterladen (Seite 10)

SP Lite2 Silicon Pyranometer

1. Attach the mounting arm to the tripod or tower at the required height.

2. Loosely attach the SP Lite2 to the mounting arm using the two bolts (M5

x 40), washers and nuts. Mounting screws are provided with the SP Lite2.

3. Thread the three M5 x 25 leveling bolts into the base of the SP Lite2.

Adjust the three leveling bolts as required to center the bubble in the level.

Tighten the two mounting bolts.

4. Wiring

The SP Lite2 can be measured with a differential or single-ended channel on

the datalogger; a differential channel is recommended and does require a user

supplied jumper between the signal reference wire and a ground terminal.

Please review Tables 1 & 2 for sensor wiring.

TABLE 1. Datalogger Connections for Differential Measurement

Function Colour

CR800, CR1000,

CR3000

CR10X, CR510 CR23X 21X/CR7

Radiation Signal Red Differential H Differential H Differential H Differential H

Signal Reference Blue Differential L Differential L Differential L Differential L

Jumper to

Shield Black G G

TABLE 2. Datalogger Connections for Single-Ended Measurement

Function Colour

CR800, CR1000,

CR3000

CR10X, CR510 CR23X 21X/CR7

Radiation Signal Red S.E. Channel S.E. Channel S.E. Channel S.E. Channel

Signal Reference Blue

Shield Black G G

5. Datalogger Programming

The SP Lite2 outputs a low-level voltage ranging from 0 to a maximum of

about 120mV. A differential voltage measurement (VoltDiff, or Instruction 2)

is recommended because it has better noise rejection than a single-ended

measurement. If a differential channel is not available, a single-ended

measurement (VoltSE, or Instruction 1) can be used. The acceptability of a

single-ended measurement can be determined by simply comparing the results

of single-ended and differential measurements made under the same

conditions.

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Campbell SP-LITE Bedienungsanleitung Seite 10