Tektronix J16 Digital Photometer/Radiometer

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The Tektronix J16 Digital Photometer/Radiometer is a portable digital photometer/radiometer capable of making a wide variety of fight measurements-in the laboratory, in the field, or on the production 11oor. A J16 System consists of a J16 mainframe, and one of eight detachable probes which can be either mounted on the J16 or on the end of an extension cable. All probes have a Hold switch which allows the displayed reading to be held.

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Specifications

J16 MAINFRAME

Display: 3½ digit LED readout and three LEDs automatically indicating correct units for probe in use
Integration Time: approx. 100 ms

POWER REQUIREMENTS

Standard: has internal rechargeable NiCad batteries that require 16 hours for a full charge. For continuous-operation an ac power supply is recommended

PROBE CHARACTERISTICS

	Application
	Probe	Range	Spectral Response	Acceptance Angle
Illuminance	J6511	0.001 to 1999 footcandles	CIE photopic curve	Cosine corrected (180°)
Irradiance	J6502-A/J6512-A	0.001 to 1999 microwatts/cm²	Flat within ±7% from 600 to 950nm; 450-600 is ±8%	50% sensitivity at 48° off axis
Luminance	J6503	0.1 to 199,900 footlamberts	CIE photopic curve	8°
Luminance	J6523	0.1 to 19,990 footlamberts	CIE photopic curve	1°
Uncorrected	J6504	Relative response only	UV enhanced silicon spectral curve (250 to 1200 nm)	50% sensitivity at 48° off axis
Red LED	J6505	0.001 to 1999 footcandles	CIE photopic curve from 600 to 710 nm	50% sensitivity at 48° off axis
Green/Yellow LED	J6501	0.001 to 1999 footcandles	CIE photopic curve	50% sensitivity at 48° off axis