PYR1-420 – Class B Thermopile Pyranometer

PYR1-420 is an ISO 9060:2018 Class B (First Class) Thermopile Pyranometer.

PYR1-420 - Class B Thermopile Pyranometer

It is equipped with electronics to amplify a very weak signal coming from the thermopile, and mounted with the best operational amplifiers on the market in terms of linearity, rejection to disturbances, consistent behavior over time and in temperature variations. The signal is normalized in the range 4 to 20mA.

This analog output mode of the signal (current loop) is characterized by a simple wiring (cable with 2 wires), and a high immunity to electromagnetic interference and interference caused by distances of over ten meters.

It is ideal for meteorological use or monitoring photovoltaic performance when this is a requirement in EPC and O&M contracts.

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.

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 6090:2018 compliant
  • Accurate calibrations with a Secondary Standard (Class A Thermopile Pyranometer) rechecked every 12 months.

Datasheet

NAME PYR1-420
PRODUCT Class B Thermopile Pyranometer
REFERENCE STANDARD ISO 9060, WMO, ISO 9846
OUTPUT 4-20 mA current loop
Calibration ISO9847 compliant With a Secondary Standard Pyranometer, certified calibration
Spectral sensitivity 300-2900 nm
Input range Irradiance 0-1600 W/m2
Response time < 20 seconds
Resolution Smallest change detected ± 4W/m2
Output Current Loop 4-20mA normalized output
Precision Tilt response angle (0-90°) ± 2%
Response temperature ( ∆t = 50°K) < 4%
Supply 9 – 30v DC protected against short circuit
Encapsulation Quarzo [k5] dome Double optical glass with elevated transparency: 0.3-3 μm
Case Anodized Aluminum
Connectors Standard M8 3 pin female
Dimensions 162mm diameter, 104mm height

(1) recommended recalibration within 20-24 months to maintain the specifications declared in calibration

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