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Class A/B FAST RESPONSE PYRHELIOMETER

DN5-AF and DN5-BF Pyrheliometer for Solar Direct Irradiance

DN5-AF: $4725 AUD
DN5-BF: $4525 AUD
Available: 2 - 4 weeks

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The Middleton Solar DN5-AF is a FAST RESPONSE Spectrally Flat Class A pyrheliometer. The DN5-BF is a lower cost Class B version of the DN5-AF. Both are for measuring solar Direct Normal Irradiance (DNI) when aimed at the sun.

The DN5-AF and DN5-BF have a passive microvolt output.

DN5AF 

Performance Specification

ISO 9060 Class A Fast Response

 DN5-AF & DN5-BF (typical)

Response time

< 0.5s (95%)

0.3s (95%)

Zero offset response (5°C/hour )

± 1 W.m-2

< ± 0.2 W.m-2

Non-stability (1 year interval)

± 0.5%

< 0.2%

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

± 0.2%

<± 0.2%

Spectral error (280-4000nm)

± 0.2%

± 0.2%

Temperature response (-10 to +40�C)

± 0.5%

<± 1% (DN5-BF)
<± 0.5% (DN5-AF)

Tilt response (at 1000 W.m-2)

± 0.2%

<± 0.2%

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 AST-02 Active Solar Tracker to aim the DN5-AF/BF at the sun.