DV211 Data Logger / Weather Station Detectors

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

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DI211 Ultra Violet Detectors

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

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DA211 Pre-Amplifier Detectors

The DA211 range of data logger compatible detectors comprise of a photodiode detector with filter glasses, diffuser and a transimpedance amplifier for a voltage output. The detector is sealed in a waterproof enclosure and operates from a single rail power supply.

The detectors feature key designs including:

  • Self-cleaning input diffusers
  • Stay dry diffuser with wide drainage slots
  • Cosine response
  • Infinity error correction ring
  • Aluminum body with resistant anodising
  • High stability silicon photodiodes
  • Internal resistor adjustable for annual calibration
  • Internal resistor adjustable for zero offset bias.

DA211 Brochure

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DA221 Underwater Pre-Amplifier Detectors

The DA221 range of data logger compatible ultra-violet detectors comprises of an ultra-violet sensitive photodiode detector with filter glasses, diffuser and a transimpedance amplifier providing a voltage output. Each detector is sealed in a waterproof enclosure and operates from a single rail power supply.

Detectors feature key designs:

  • Fully submersible up to 10 meters
  • Cosine response
  • Aluminium body with resistant anodising
  • High stability silicon photodiodes
  • Internal resistor adjustable for annual recalibration
  • Internal resistor adjustable for zero offset bias

DA221 Brochure

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DET223 Underwater Detectors

The DET223 series of detectors have a photidode detector, filter glass and cosine diffuser package with a multiple (or single option) range transimpedance amplifier and a voltage to frequency converter.

These detectors are exclusively for use with the Irradian range of 201 / 202 / 203 microprocessor controlled photometers and radiometers and also as compensation detectors of version 7 (SR9910) type spectroradiometers.

Detectors feature key designs:

  • Fully submersible up to 10 meters
  • Cosine response
  • Aluminium body with resistant anodising
  • High stability silicon photodiodes

UV203/3 Brochure

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DI221 Underwater Ultra Violet Detectors

The Irradian DI221 underwater ultra violet series detectors are sealed in a waterproof enclosure and are designed for use down to a depth of 10 metres whilst maintaining the combinations of reliability and precision.

They are provided with a calibrated current sensitivity and comprise of a silicon or GaAsP photodiode and filter glass package with diffuser.

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

  • UVA - Model DI221A-Cos
  • UVB - Model DI221B2-Cos
  • UVAB - Model DI221AB-Cos

Key design features include:

  • Fully submersible up to 10 metres
  • Cosine response
  • Aluminium body with resistant anodising
  • High stability photodiodes

DI221 Brochure

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