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Cooke cal-LIGHT400F Calibrated Precision Lightmeter With Front Mounted Sensor
 
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Cooke cal-LIGHT400F Calibrated Precision Lightmeter With Front Mounted Sensor


Cooke cal-LIGHT400F
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 Cooke cal-LIGHT400F
Cooke cal-LIGHT400F
Sale Price: $485.00
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• We Accept Purchase Orders

Includes
  • Instructions
  • Battery
  • Carrying case
  • Calibration certificate
Features
  • Calibration certificate traceable to NIST and NRC National Standards
  • Silicon photodiode sensor with human eye response correction
  • Autorange
  • Auto power off
  • User selectable units
  • User-friendly operation
  • Cosine correction
  • Photopic correction
Who Uses It?
  • Art Gallery & Museum Curators
  • Architects
  • Engineers
  • Interior Designers
  • Lighting Designers
  • Facility Managers
  • Landscape Architects
  • Developers
  • Contractors
  • All Lighting Specifiers

Why is the cal-LIGHT 400F calibrated?

Every cal-LIGHT 400F has been individually calibrated, and is accompanied by a certificate guaranteeing that its measurements conform exactly to NIST and NRC National Standards.



  Description

Light Meter w/ Front-Mounted Sensor. NIST Calibration Included

Cooke cal-LIGHT 400F is a calibrated precision lightmeter complete with instructions, battery, carrying case, and calibration certificate.

The cal-LIGHT 400F is a user-friendly, precision lightmeter, with a calibration certificate at an affordable price.

Designed to accurately measure ambient illumination, the cal-LIGHT 400F features the unique combination of user-friendly design and accuracy.

The cal-LIGHT 400F is equipped with a silicon photodiode sensor which takes the measurement. A single button controls the instrument: To use the “ON” and “HOLD” button, click to display reading, hold to “freeze” display, and the lightmeter shuts off automatically in about a minute.



  Models, Options, & Accessories

Model Description List Price Sale Price
cal-LIGHT400F Light Meter w/ Front-Mounted Sensor. NIST Calibration Included
$485.00 
cal-LIGHT400 Light Meter w/ Angled Sensor. NIST Calibration Included
$395.00 
cal-LIGHT400L Light Meter w/ Angled Sensor and BackLight Display. NIST Calibration Included
$465.00 
Model Accessories List Price Sale Price
cal-LIGHT400-NIST Light Meter NIST Re-Calibration
$110.00 


  Specifications

Measuring Range Autoranges 0.1 fc or lux to 40,000 fc or lux
Units Choose fc or lux with user selectable switch located in battery compartment
Accuracy a) Intensity linearity: 2%
b) Photopic: Better than 1.0% of CIE curve
c) Cosine error: Less than ±1.0% up to an incident angle of ±85°
d) Overall accuracy: ±5% of displayed value
Calibration Calibrations and recalibrations are performed by COOKE and are traceable to NIST and NRC National Standards. The photopic response of the calibrated sensor matches the CIE standard observer curve response to within 1% of the reading when using a standard tungsten source at 2856° K
Light Sensor Silicon photodiode with photopic and cosine correction. Diameter 10 mm
Temperature Ranges Operation: 32° to 130° F (0° to 55°C)
Storage: -4° to 160° F (-20° to 70° C)



 

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