UDT C-Series Optical Meters for Cooled Sensors

The C Series Optical Meters include an integrated controller that is compatible with our thermo-electrically cooled silicon and indium gallium arsenide (InGaAs) detectors. This feature results in an order of magnitude greater sensitivity than standard Optical Meters, resulting in outstanding performance when measuring low light levels.

The product family includes two models; the C1, with single-stage cooling of the detector, and the C2, with dual stage cooling for applications that require a detector/filter combination. Both products feature eight measurement ranges accessible through the front panel touch display or via serial and USB interfaces. 

Applications

  • Display measurement photometry
  • LED radiometry
  • Night-vision compatibility measurements
  • Metrology lab primary standard detector
  • Customized optics available for any application
Request a Quote

Precision Solutions for Photometric, Radiometric & Laser Power Measurement

  • Temperature stabilized silicon and InGaAs detectors available covering 200 – 2600 nm
  • Temperature stabilized correction filters available
  • High accuracy photopic correction f1’~ 0.8%
  • NVIS compatibility filters and lenses
  • High sensitivity - down to 10-13 watts or 10-6 lux
  • Eight decades of dynamic range
  • USB, RS-232 computer control

  Meter - General Specifications

Gain

1010 to 103 Amps

Range

8 decades – manual or auto-ranging

Control

Touch screen, RS-232 or USB

Linearity

Range-to-range linearity > 99.95

Temperature Variation

< 5 ppm / °C

Noise

< 70 x 10-15 A on range 1010

Frequency Roll-off

Gain

Half-power Frequency

103

35 kHz

104

2200 kHz

105

220 Hz

106

100 Hz

107

100 Hz

108

100 Hz

109

48 Hz

1010

12 Hz

Temperature Stability

Over 1 hour < 0.001°C                                                                   Over 24 hours < 0.003°C

Sensor Head Dimensions

105mm (4.15 in) L x 64mm (2.5 in) diameter

Optical Meter Dimensions

330 mm (13 in) x 217mm (8.55 in) x 133 mm (5.22 in)

Bipolar Output Current

+ 1.5 A maximum

TEC Power

12 W maximum

Input Power

12 VDC via external switching power supply 5 A

Calibration Traceability

Traceable to NIST with optional ISO/IEC 17025 accreditation

Relative Humidity

Up to 99% (non-condensing)

Regulatory Compliance

TUV, UL, CSA, CE

Model Number Configurations

C1 (single TEC)          C2 (dual TEC)

Specifications are subject to change without notice.

 

Cooled Photodetector Options (sold separately)

Model

Dynamic Range

Type

λ Range (nm)(1)

Active Area  (mm)

Max Dark Current

Rise Time

Photosensitivity @ Peak

19830-2L-Flex

1 x 10-6 to 1 x 104 lux

Si

190-1100

10 x 10

200 pA

3 µsec

0.5 A/W

@ 900 nm

19830-3-Flex

35.8 x 10-12 to 4.18 x 10 -1

Si

190-1100

5.8 x 5.8

25 pA

1 µsec

4.2 x 10-3 A/W/cm2

@ 980 nm

(1)Quartz diffuser required for UV operation

Specifications are subject to change without notice.  

 

Related Products

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.

Learn More

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.

Learn More