SR05-D1A3-PV manual v1801 6/83
Introduction
SR05 series is the most affordable range of pyranometers meeting ISO 9060
requirements. These sensors are ideal for general solar radiation measurements and
popular for monitoring photovoltaic (PV) systems. Model SR05-D1A3–PV is made as a
perfect alternative to PV reference cells. It offers the same Modbus interface as the most
common PV reference cell model for easy compatibility. Relative to PV reference cells,
SR05-D1A3-PV has the advantage of higher stability, independence of the PV cell type or
anti-reflection coating, and better availability and price of recalibration.
SR05 series is an economical range of ISO 9060 second class pyranometers for
measurement of solar radiation received by a plane surface, in W/m
2
, from a 180 ° field
of view angle. SR05 is perfect for predicting generated power and monitoring the overall
efficiency of PV power plants. Different mounting options are available, allowing SR05 to
be mounted in virtually any situation. The combination of easy installation and its low
cost makes SR05 the preferred solution for commercial scale PV systems.
There are several versions of SR05 series:
• Version SR05-D1A3: digital sensor with Modbus over RS-485 and analogue 0-1 V output
• Version SR05-D2A2: digital sensor with Modbus over TTL and analogue 4–20 mA output
• Version SR05-A1: analogue sensor with analogue millivolt output
and:
•
Version SR05-D1A3-PV: digital sensor with Modbus over RS-485, alternative for PV
reference cell
This user manual covers use of SR05-D1A3-PV. Specifications of this version
differ from those of the other digital and analogue sensors in the SR05 series
range. For use of SR05-D1A3 or SR05-D2A2, consult the separate SR05-D1A3 &
SR05-D2A2 user manual. For use of SR05-A1, offering analogue millivolt output,
consult the separate SR05-A1 user manual.
Figure 0.1 SR05-D1A3-PV digital second class pyranometer seen from above
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