UDT Model 19830-2L-FLEX Cooled Photometric Sensor

The UDT 19830-2L-Flex Series from Gamma Scientific includes thermoelectrically cooled photodetector heads that work in conjunction with our model 400-C Series optical meters to measure a wide variety of light levels. These photodetector heads provide direct readings in the spectral range of 200 to 1800 nm and feature active temperature control.

Our wide range of light measurement tools is complemented by ISO/IEC 17025 accreditation by NVLAP (NVLAP lab code 200823-0), resulting in unmatched performance and custom configuration as required.

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Photodetector Specifications                               

Wavelength Range

190 to 1100 nm

Photodetector Type

Silicon

CIE V (λ) Function(1)

 f1’  ≤ 2%

Active Area

10 mm x 10 mm, 8mm aperture

Dynamic Range

1 x 10-6 to 1 x 104 lux

Photo Sensitivity at Peak

0.5 A/W at 900 nm

Reverse Voltage (max)

5 V

Shunt Resistance

0.2 GΩ

Operating Temperature

20 to + 60° C

Storage Temperature

-20 to + 80° C

Nominal Field of View

8.2°

Calibration

ISO17025, NIST Traceable

Available Accessories

 

Luminance Hood 1120V

Removable VLAM filter @ 5°

Number of TE Coolers 2
Photosensitivity

ƛp:       0.5 A/W

Min:    0.10 A/W at 200 nm

Typ:     0.12 A/W at 200 nm

            0.33 A/W at 633 nm

            0.50 A/W at 930 nm
Short Circuit Current at 100 lx

65 µA min

78 µA typ
Maximum Dark Current

200 pA @ 10 mV reverse voltage

Temp Coefficient, Dark Current

1.15 x per °C

Rise Time

3 µsec

Reverse Voltage 0 V, Load  1kΩ

Terminal Capacitance

1100 pF

Reverse Voltage 0V, 10 kHz

Shunt Resistance

0.2 GΩ typ.   0.05 GΩ min

Reverse Voltage 10 m

Noise Equivalent Power

1.8 x 10-14 W/Hz1/2

(1) When equipped with Photometric filter p/n 19629

Specifications are subject to change without notice

 

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The C Series Optical Meters include an integrated controller that is compatible with our thermo-electrically cooled silicon and indium gallium arsenide (InGaAs) detectors.

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The UDT 19830-3-xx-FLEX Series from Gamma Scientific includes thermoelectrically cooled photodetector heads that work in conjunction with our model 400-C Series optical meters to measure a wide variety of light levels.

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