PYR2-420 Thermopile pyranometers

PYR2-420 is a second class Thermopyle Pyranometer according to the ISO 9060.

Second class thermopile pyranometer senso


It has an easier construction than the PYR1, but it is constructed with the same high quality materials used for the superior model.

This Second Class pyranometer is equipped with the same electronics used on the First Class Pyranometer so that the signal has a high level of linearity and noise rejection.
The signal is normalized in the 4 to 20mA range. 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.

This instrument is suitable for solar power measurements and for controlling the efficiency of photovoltaic systems when a precision of between 5% and 10% in solar energy actually received is sufficient.

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:

This website uses cookies and allows third­party cookies. By pressing the OK button or taking any action on the website, you accept the use of these cookies. To learn more about how to change or deny the use of cookies please see our: Privacy policy