PYR2-485 – Class C Thermopile Pyranometer

PYR2-485 is an ISO 9060:2018 Class C (Second Class) Thermopile Pyranometer ideal for scientific and meteorological use. It comes with RS485 Modbus output line suitable for distances up to 500m.

It has a simpler construction than the Class B, but uses the same high quality materials.

PYR2-485 – designed for accuracy and reliability

The PYR2-485 is equipped with electronics board with a microcontroller to manage sampling, average of sampling, temperature reading and RS485 trasmissions. This helps to guarantee rejection from disturbances and constant behavior over intervals of time and temperature variations. The output signal in in ModbusRTU over RS485.

The carefully selected components have a constant behavior over time and for a wide temperature range. The distances covered by the signals exceed 500 meters.

Note: the terms solarimeter, irradiance sensor, pyranometer and calibrated cell are interchangeable. On this site we will use irradiance sensor. To learn more click here.

This instrument is suitable for measuring solar power and monitoring the efficiency of photovoltaic systems when a precision of 5% – 10% is sufficient.

Key features

  • Thermopile sensor
  • Double dome in hemispherical optical type glass with high transparency
  • Anodized aluminum body ideal for outdoor use
  • Current loop output 4.20 mA with 4 mA (± 0.01mA) @ 0W/m2 and 20mA (± 0.03mA)
  • 50m current loop cable
  • High weather resistance
  • ISO 6090 compliant
  • Accurate calibrations with a Class B (First Class) Pyranometer rechecked every 12 months.

Datasheet

NAME PYR2-485
PRODUCT PYR2-485 – Class C Thermopile Pyranometer
REFERENCE STANDARD ISO 9060:1990, ISO 9060:2018
OUTPUT Modbus RTU on RS485
Calibration ISO9847 compliant With a Class B (First Class) Pyranometer, certified calibration
Spectral sensitivity 300 – 2900 nm
Input range 0 – 1600 W/m2
Response time < 25 seconds
Resolution Smallest detectable change ± 8W/m2
Working temperature -40 to +80°C
Field of view 180°
Stability (over 1 year) < ± 2%
Output Modbus Adrs.257 Irradiance; Adrs. 34817 Pyr Temp
Supply 9-30V DC protected against short circuit
Encapsulation Quarzo [k5] dome 0.3μm – 3μm
Case Anodized Aluminum
Connector standard female M8 3 pin
Dimensioni 162mm diameter x 104mm height

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