PYR Sensor

Easy-To-Use Pyranometer

The PYR solar radiation sensor is designed for continuous outdoor use and is completely waterproof and submersible.

Accurate, easy-to-use pyranometer
Measure total solar radiation
Weatherproof for long-term use

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Overview / Features: Measure total incoming shortwave solar radiation

The PYR total solar radiation sensor (pyranometer) measures the solar radiation flux density (in watts per meter squared) from an upward-facing field of view of 180 degrees.

Weatherproof for long-term use

The sensor is designed for continuous outdoor use and is completely waterproof and submersible.

Accuracy

Accurate measurement depends on the cleanliness of the lens and installation of the sensor at horizontal (180°). The sensor head has a domed diffusion disk to reduce the need for frequent cleaning. A leveling plate is included for accurate installation.

Specifications: Measurement Specifications

Spectral range

360–1120 nm

Accuracy

±5%

Resolution

N/A

Field of view

Hemisherical, 180°

Measurement range

0 to 1,750 W m^-2 (0–350 mV)

Calibrations and conversions

Sensors are calibrated for outside and upward-facing use

5.0 W m^-2 per mV

Communication Specifications

Data Logger Compatibility

METER Em50/50G, EM60 series, ZL6 series, ZSC, ProCheck

Physical Specifications

Operating environment

-40 to 60 °C

Cable length

5m

Cable connector types

3.5 mm stereo plug

Sensor dimensions

2.4 cm x 2.75 cm (0.95 in x 1.1 in)

Other

Compliance

Prop 65 Warning

Warranty

One year, parts and labor

Support / FAQ

PYR Sensor Manual

Manual

PDF, 1.256MB

PYR Sensor Quick Start

Quickstart Guide

PDF, 0.552MB

METER Splice Kit Repair Instruction Video

Instructions

URL, 0.0 kb

Sensor wire splicing guide (complete method)

Instructions

PDF, 5MB

Sensor wire splicing guide (quick method)

Instructions

PDF, 0.9MB

PYR FAQs

Can PAR be estimated from total shortwave radiation?: It is better to measure PAR and total shortwave radiation (PYR); however, PAR can be estimated from total shortwave radiation by using a physically based model.

How do I know when my PYR or PAR needs to be recalibrated?: Use the Apogee Clear Sky calculator. The primary use of this calculator is to determine the need for recalibration of radiation sensors. It is most accurate when used near solar noon in the summer months.

How do I mount the leveling plate to the mounting bracket?

You can find PAR/PYR installation instructions in the quick start guide and on page 9 of the manual. On the leveling plate, the outer screws (with threads in the plate) are for leveling, and the inner screws (no threads) are used to secure the leveling plate to the mounting bracket. First, securely install the mounting bracket to a post, considering the optimal position for collecting accurate solar radiation data. Orient the sensor cable as described in the quick start and manual.

Screw in the inner screws part of the way, to secure it to the mounting bracket.
Screw in the outer screws until the bubble level indicates the leveling plate is level.
Screw in the inner screws to completely secure the leveled leveling plate to the mounting bracket.
Remove the green cap after installation is complete.