PYR1-420 Thermopile pyranometers

PYR1-420 is a first class Thermopile Pyranometer according to the ISO 9060.

First class thermopile pyranometer sensor


PYR1 – 420 is our new thermopile pyranometer for measuring solar irradiance in PV plants.

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.

PYR1 – 420 is best for meteorological uses and for controlling the performance of photovoltaic systems when this is a requirement in EPC and O&M contracts.

You can easily compare features and technical specs of PYR1-420 and PYR2-420 in the table below:

TYPE OF PRODUCTThermopile pyranometer
class 1 thermopile pyranometerclass 2 thermopile pyranometer
Class 1Class 2
OUTPUT4 ...20 mA current loop
Calibration4...20mA Output normalized
Input Range:0 ÷ 1600 W/m2
Response time
ResolutionSmallest detectable change
± 4W/m2± 8W/m2
Working Range-40 ÷ +80°C
Output:Current loop
4...20mA Output normalized
Output precision:
Tilt response (0 ÷ 90°)± 2%± 5%
Temp. Response ( ∆t = 50°K)
Power supply9 ÷ 30 Vdc protected against short circuit
Encapsulation: Quartz [k5] domeSpecial glass, transparent to: 0,3 ÷ 3,0 μm, doubleSpecial glass, transparent to: 0,3 ÷ 3,0 μm, single
CaseAnodized Aluminum
ConnectorsStandard M8 3 pin, female
DimensionsΦ 80 x h 75

Here you can download the features for both versions of the pyranometer:

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