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FIRST CLASS PYRHELIOMETER

The Middleton DN5 is an affordable precision pyrheliometer for measuring the solar direct radiation when aimed at the sun.
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DN5:               AUD3675
DN5-E:           AUD3990

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PRODUCTS -> FIRST CLASS PYRHELIOMETER

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FIRST CLASS PYRHELIOMETER

DN5 and DN5-E Pyrheliometer for Solar Direct Irradiance

Download this paper to see how the DN5 compares to other commercial pyrheliometers

The Middleton Solar DN5 is an affordable precision pyrheliometer for measuring the solar direct radiation when aimed at the sun. It exceeds the international accepted specifications for a First Class pyrheliometer. The DN5 has a passive microvolt output, and the DN5-E version has an in-built amplifier to give a millivolt output for easy signal measurement.

DN5

Performance Specification

ISO 9060 First Class

 DN5 & DN5-E (typical)

Response time

< 20s (95%)

< 10s (95%)

Zero offset response (5C/hour )

3 W.m-2

< 1 W.m-2

Non-stability (1 year interval)

1%

< 0.2%

Non-linearity (100 - 1000 W.m-2)

0.5%

< 0.3%

Spectral selectivity (350-1500nm)

1%

0.5%

Temperature response (50C span)

2%

1% (-10 to +40C)

Tilt response (at 1000 W.m-2)

0.5%

none

 

EXCELLENT PERFORMANCE, USER FRIENDLY, DURABLE

Window is optical sapphire for broad bandwidth and superior chemical & scratch resistance compared to glass or quartz.

Flush-mount window to prevent obstruction by rain or debris.

Marine-grade anodised aluminium for corrosion resistance.

Compact size and light weight.

Use the APT-01 Automatic Passive Solar Tracker to aim the DN5 at the sun.

AVAILABLE OPTIONS

The DH1 Hood can shield the DN5/E window from direct rain & dirt.

 

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