Delta-T SPN1 User Manual
Also see for SPN1: Technical note
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Contents
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Differences from BF2 and BF3• The BF2 and BF3 use the same optical design as the SPN1, andhave a similar set of outputs. The BF2 & BF3 use photodiodes ratherthan thermopile sensors and measure PAR rather than energy. Theyare not as rugged or as accurate as the SPN1.ConstructionSeven thermopile sensors are mounted under cosine-corrected diffusers,all under a patterned, hemispherical dome, along with a levelling bubble, adesiccant-status indicator, and a red light emitting diode (LED). The LEDflashes when the SPN1 is taking readings.There are two external connectors, a 5-pin RS232 connector for serialcommunications, and an 8-pin connector for analogue signals and power.The serial port is provided for checking real time readings, using theSunRead software, or for attachment to digital data collection systems.See also Appendix B: RS232 commandsThe desiccant can be renewed by unscrewing the indicator plug from theside of the SPN1 and replacing the canister.A fully adjustable levelling baseplate is also available.Section through SPN16 z Introduction SPN1 User Manual v1.0 |
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