National Semiconductor • SolarMagic Weather Station User Guide
12
3.7
PV Cell Temperature Sensor
The PV Cell Temperature Sensor temperature sensor measures the
temperature of the aluminum heat sink located on the face.
3.7.2
PV Cell Temperature Sensor Specifications
•
Sensor Type: 100 Ohm Platinum Class A RTD
•
Output: 4–20mA
•
Range: –50° C to 85°C
•
Accuracy: ±0.5° F or ±0.25°C
•
Operating Voltage: 10–36VDC
•
Current Draw: Same as sensor output
•
Warm Up Time: 3 seconds minimum
•
Storage Temperature: –55°C to 90°C
•
Sensing Surface: 0.75” × 1.5” Aluminum
•
Housing: 2.0W” × 1.1H” × 3.8L” ABS
•
Weight: 13oz with 25’ of cable
3.8
Reference Cell/Temperature Sensor
The Reference Cell/Temperature sensor is a combination sensor with
an irradiation sensor via a temperature compensated mono-crystalline
silicon cell and a temperature sensor.
Figure 3-6.
PV Cell
Temperature Sensor
Summary of Contents for SolarMagic
Page 1: ...SolarMagicTM Weather Station User Guide...
Page 4: ......
Page 32: ......
Page 33: ...Appendix A Reference Diagrams 27 Appendix A Reference Diagrams...
Page 34: ...National Semiconductor SolarMagic Weather Station User Guide 28 A 1 1 Sensor Terminal Blocks...
Page 35: ...Appendix A Reference Diagrams 29 A 1 2 Communications Power Terminal Block...