The SR9910-V7 computer controlled spectroradiometer is designed for the measurement of spectral irradiance and radiance in the ultra-violet, visible and near infra-red spectra. Using flexible fibre light guides and a range of optical accessories, many optical measurements are made possible, including chromaticity coordinates, total or diffuse reflectance and transmittance. Specialised software provides user friendly control of the instrument with data storage, mathematical analysis and graphing.

The first double monochromator spectroradiometer was produced in 1990 to meet the growing requirement to measure ultra violet radiation and in particular the UVB content of sunlight and artificial sources.

Since then the SR9910 spectroradiometer has be enhanced to it's latest version, V7 where it now boasts a small light weight package, a TEC cooled PMT detector and parallel monitoring with an external detector. The latter now enables the measurement data to be compensated during a scan to reduce the effect of constantly changing sources.

Applications include measurements on LEDs, fluorescent sources and visible and near infra red spectral irradiance.

SR9910-V7 Brochure

The PR450 phototherapy radiometer comprises of a microprocessor controlled display unit with key switch control and large numerical display.

The detector assembly has a photodiode detector with optical coloured glass filters to give a spectral response peaking at 450nm, the optimum wavelength for the treatment of hyperbilirubinemia. A cosine corrected diffuser input assembly ensures the radiometer responds accurately to the position and angle of the light sources.

PR450 Brochure

Environmental Enclosures

External Battery Packs

Long Length Light Guides

External Cosine Monitor

Reflectance/Transmittance Integrating Spheres

Radiance Telescopes

Handbooks, software and certificates

Contact Irradian for further details.

The PR203 is a tri-measurement hand-held meter for use with blue light phototherapy systems covering, tungsten halogen, fluorescent and diode light sources. Suitable for use in hospital and laboratory environments, it is designed for long life and is robust and accurate.

It also provides flexibility with the various types of phototherapy units that are in use whilst remaining easy and intuative to use.

For more infromation and prices contact Irradian or download the PR203 information available from this website.

PR203 Brochure

PR203 Guide

PR203 Handbook

The PM203 optical power meter can be used to measure the radiometric power in a beam of monochromatic or narrow band light. Using the internal calibration table the micro-processor controlled PM203 displays directly the optical power in Watts or dBm or the calibration wavelength.

The power meter can be configured with a range of optical accessories including attenuation filters, integrating spheres and fibre connector adaptors.

The PM203 is supplied with a silicon photodiode detector to cover the optical range 200-1100 nm.

The calibration wavelength can be selected by stepping in 10nm increments through the range or by selecting from the user programmable list of up to 16 pre-selected wavelengths.

The standard power meter with the silicon photodiode has a power range from 0.001nW up to 200µW or an optional range of 10nW up to 2mW.

With the addition of a integrating sphere coupled to the detector the PM203 can be configured as a CW laser power meter.

Contact Irradian for further details.

PM203 Brochure

Monochromators using high efficiency diffraction gratings are found in many applications including the spectrophotometer and spectroradiometer. This series of monochromators have been designed and manufactured with a range of concave gratings to meet the demands of high precision spectral radiometry.            

All monochromators have multi-position entrance and exit slits for a choice of output bandwidths. Grating motor control and drive electronics with PC software allow automation for routine spectral measurements.

These 100mm focal length monochromators are available with 1200, 900 or 600 grooves/mm holographic diffraction gratings for the ultra violet, visible and near infrared spectrum.

Eight position entrance and exit slit disks control the monochromator bandwidth.

All the monochromators have optional stepper motor wavelength drives, detectors, light sources, light guides, order sorting filters, integrating spheres and sample holders.

Please contact Irradian for further details.

The underwater UV203/3 ultra-violet radiometer has a detector head housing up to three photodiode detector, filter glass and cosine diffuser packages,covering selected bands of the spectrum. The standard ranges offered are UVA, UVB and a flat, photometric-range response (RFF-Vis), but other responses are also available on request.

The microprocessor control within the display unit features auto or manual ranging, RS232 communication with a PC and special functions for integrating the signal or recording the maximum, minimum and average signals.

Each separate detector has an integral, multiple-gain-range transimpedance amplifier with signal digitising, providing high sensitivity and low noise measurements.

Further key designs features include;

- Fully submersible detector head up to 10 metres.

- Cosine response with individual diode/filter combinations.

- Aluminium body with resistant anodising.

- High stability silicon photodiodes.

Please contact Irradian for further details.

UV203/3 Brochure

The dramatic reduction in the stray light levels of a double monochromator compared to that of a single monochromator make it an essential tool in demanding spectral measurements.

The MCG990 is a compact 100mm focal length monochromator with two concave holographic gratings, covering the spectral range 200 - 800nm.

The monochromator can be supplied with a stepper motor and drive for PC or remote control, internal filter wheel and drive for shuttering and order sorting.

A range of accessories is available including cooled photo multiplier detectors, silicon detectors, light guides, arc lamp sources and integrating spheres.

Please contact Irradian for further details.

The DV211 series detectors are designed for use with data loggers and weather stations, where continuous monitoring is required.

Two models are available; a photosynthetic active response (PAR) detector, and a simulated solar energy response detector.

• PAR - Model DV211Q-Cos
• Simulated Solar - Model DV211E-Cos

Both detectors feature key designs:

• Self-cleaning input diffusers
• Stay dry diffuser with wide drainage slots
• Cosine response
• Infinity error correction ring
• Aluminium body with resistant anodising
• High stability silicon photodiodes
• Internal resistor adjustable for annual recalibration
• Low cost

DV211 Brochure

The DI211 series detectors are designed for use with data loggers and weather stations, where continuous monitoring is required. They are provided with a calibrated current sensitivity and comprise of a silicon photodiode and filter glass package with diffuser.

Three models are available covering the UVA, UVB and UVAB regions:

• UVA - Model DI211A-Cos
• UVB - Model DI211B2-Cos
• UVAB - Model DI211AB-Cos

The detectors feature key designs including:

• Self-cleaning input diffusers
• Stay dry diffuser with wide drainage slots
• Cosine response
• Infinity error correction ring
• Aluminium body with resistant anodising
• High stability silicon photodiodes
• Low cost

DI211 Brochure