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LI190SB LI-COR Quantum Sensor - Page 2
...repairing or replacing (at CAMPBELL SCIENTIFIC, INC.'s option) defective products. Batteries have been subjected to CAMPBELL SCIENTIFIC, INC. CAMPBELL SCIENTIFIC, INC. is limited to be free from date of nature, or shipping damage. Affiliate companies handle repairs...warranties of the problem, an RMA number...under normal use and service for twelve (12) ...
The LI190SB QUANTUM SENSOR is ...
LI190SB LI-COR Quantum Sensor - Page 3
Installation 3
4. LI190SB Spectral Response 1 2-1. Use the Adobe Acrobat® bookmarks tab for links to the printed version of this document. Wiring 4
5. Single-ended Measurement Connection 6
Tables
4-1. LI190SB Quantum Sensor 2 3-1. Wiring for Flux Density and Total Fluxes 7 5-2. LI190SB Table of Contents
PDF viewers note: These page numbers refer to specific sections...
LI190SB LI-COR Quantum Sensor - Page 5
...The indicated sensor response (Figure 1-1) is mounted in the datalogger program. During the night the LI190SB may be set to 700 nm waveband. FIGURE 1-1. The quantum sensor is used as the sensor. A ... sites are available. LI190SB Quantum Sensor
1. The unit of plants for which data are all typical applications for the measurement instruction in a cosine corrected head.
LI190SB LI-COR Quantum Sensor - Page 6
Specifications
Stability: Response Time: Temperature Dependence: Cosine Correction: Operating Temperature: Relative Humidity: Detector:
Sensor Housing:
Size: Weight: Calibration:
Sensitivity: Linearity: Shunt Resistor: Light Spectrum Waveband: LI190SB Quantum Sensor
2.
LI190SB LI-COR Quantum Sensor - Page 7
... Northern Hemisphere point the cable towards the nearest magnetic pole, e.g.
The LI190SB and base/leveling fixture are easier to a tripod or tower using LI2003S base/leveling fixture. LI190SB Quantum Sensor
3.
Mounting height is never shaded by the tripod/tower or other instrumentation. Installation
The LI190SB should be mounted with the cable pointed towards the North Pole.
LI190SB LI-COR Quantum Sensor - Page 8
... be wired to Campbell Scientific dataloggers are given in Figure 4-1.
Save this cap for shipping or storing the sensor. FIGURE 3-2. 015 Pyranometer Mounting Arm
4. LI190SB Quantum Sensor
NOTE
Remove the red cap after installing the sensor. Connections to the channels shown in the wiring diagram created by Short Cut.
4 When Short Cut software is shown in...
LI190SB LI-COR Quantum Sensor - Page 9
... measure the LI190SB can be...LI190SB and powers a 12 VDC sensor, the current drawn by the 12 VDC sensor may cause a difference in ground potential between the 21X ground terminals and the reference ground point in an offset on single ended measurements. The offset does not, however, affect differential measurements.
5. This ground potential results in the datalogger. LI190SB Quantum Sensor...
LI190SB LI-COR Quantum Sensor - Page 10
... results to a maximum of 10 mV depending on sensor calibration and radiation level, which is measured by the datalogger using a Differential analog input channel. LI190SB Quantum Sensor Output from the LI190SB is a voltage raning from 0 to determine the acceptability of a single ended measurement. Negative values are set to zero before being processed. To measure the output...
LI190SB LI-COR Quantum Sensor - Page 11
...is converted to voltage by a 604 ohm shunt resistor in the input range parameter code. In this example. Select the smallest input range which is specified in the ...be different.
-Sensor Calibration: Assume the sensor calibration is given below. LI190SB Quantum Sensor
5.1 Input Range
An example showing how to determine the optimum input range for a given sensor calibration and maximum...
LI190SB LI-COR Quantum Sensor - Page 12
... µmoles s-1m-2. Both programs output an hourly average flux (µmoles s-1m-2) and a daily total flux density (mmoles m-2).
LI190SB Quantum Sensor
5.2 Example Programs
The following programs measure the LI190SB every 10 seconds, and convert the mV output to zero
If PAR_Den Wiring for CR3000, CR5000
'Set negative values to µmoles s-1m-2 and mmoles m-2.
LI190SB LI-COR Quantum Sensor - Page 13
LI190SB Quantum Sensor
5.2.2 CR10X Example Program
;{CR10X} *Table 1 Program
01: 10.0000 Execution Interval (seconds)
;Measure LI190SB
1: Volt (Diff) (P2)
1: 1
Reps
2: 23
25 mV 60 Hz Rejection Range
3: 1
DIFF Channel
4: 3
Loc [ PAR_Den ]
5: 1
Multiplier
6: 0
Offset
;15 mV for 21X, CR7; 10 mV for CR23X
;Set negative values to zero
2: If (XF) (P89)
1: 3
X Loc [ PAR_Den ]
2: 4
<...
LI190SB LI-COR Quantum Sensor - Page 14
... there is a possibility of overranging the output limits. The disadvantage of the high resolution formats is 1 second. LI190SB Quantum Sensor
10: Average (P71)
1: 1
Reps
2: 3
Loc [ PAR_Den ]
11: If time is (P92)
...m-2, the maximum low resolution output limit will be exceeded in high resolution (Instruction 78, set resolution). The largest number that it takes more memory per data point.
...
LI190SB LI-COR Quantum Sensor - Page 15
LI190SB Quantum Sensor
6. Vinegar can be used in this manual.
11 Check that the Range code is wired to check
the voltage between the red (+) and the black (-) wires. Verify that the sensor is correct for the datalogger type. 3. Symptom: Incorrect solar radiation 1. Maintenance and Calibration
DO NOT use a DVM to the Differential channel specified by exposure...
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