Middleton Solar- DN5 First Class Pyrheliometer


		FIRST CLASS PYRHELIOMETER The Middleton DN5 is an affordable precision pyrheliometer for measuring the solar direct radiation when aimed at the sun. Datasheet Manual Ask Distributors Currency	DN5: AUD3563 DN5-E: AUD3930 DH1 option: AUD165 Print this page
		PRODUCTS -> FIRST CLASS PYRHELIOMETER

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 (5°C/hour )	± 3 W.m-2	< ± 1 W.m-2
Non-stability (1 year interval)	± 1%	< ± 1%
Non-linearity (100 - 1000 W.m-2)	± 0.5%	<± 0.3%
Spectral selectivity (350-1500nm)	± 1%	± 0.5%
Temperature response (50°C span)	± 2%	± 1% (-10 to +40°C)
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 AST-02 Active Solar Tracker to aim the DN5 at the sun.

AVAILABLE OPTIONS

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

The FW01 Filterwheel can be fitted to the DN5/E.

Dnfw

The FW01 has three glass filters (Schott OG530, RG630, RG695), open position, and blocked position.