Introduction

Summary of Features

The Energy Sensor type ES2 is intended for solar energy studies in natural unobstructed daylight. Uses include measuring the incident solar radiation (in W/m2) on buildings and solar collectors, for example, or as a reference for crop canopy measurements with tube solarimeters.

The Energy Sensor type ES2 is an improved version of the former sensor type ES, with the following features:

• Millivolt output with preset, standard sensitivity
• Data logger compatible
• High stability, low temperature coefficient silicon photodiodes
• Self cleaning, stay-dry diffuser with water drainage slots
• Good cosine response with infinity-error correction ring
• Screened twin core cable
• All-aluminium body with weather resistant anodising
• Internal calibration adjuster for annual recalibration
• Lower purchase and recalibration cost

The sensor can be supplied with optional levelling mounting plate, or an adapter for mounting on the top of the standard Delta-T weather station mast.