PASCO Specialty & Mfg. CI-6504A User Manual download pdf

Instruction Sheet

for the PASCO

Model CI-6504A

and CI-6604

LIGHT SENSOR AND

HIGH SENSITIVITY LIGHT SENSOR

012-06306D

Introduction

The PASCO CI-6504A Light Sensor and CI-6604 High

Sensitivity Light Sensor are designed to be used with a

PASCO computer interface to make measurements of

relative light intensity.

Through the use of the gain options on the sensor box

and within Science Workshop

, the Light Sensor has a

working range of up to seven orders of magnitude,

allowing application across a wide range of lighting

levels.

The CI-6504A is best suited for experiments performed

at ambient light levels. At the lower end of the range,

interference patterns of monochromatic light after it

passes through single or multiple slits can be measured;

at the higher end, measurements can be made of relative

light intensities of daylight. The range switch settings

(1X, 10X, and 100X) on the top of the sensor roughly

corresponds to maximum input light levels of 500, 50,

and 5 lux.

The CI-6604 can be used where experiments are

performed at low light levels. Interference patterns of

monochromatic light, after it passes through single or

multiple slits, can be measured and spectral lines from a

spectrometer may be detected. The range switch settings

(1X, 10X, and 100X) on the top of the sensor roughly

corresponds to maximum input levels of 5, 0.5, and 0.05

lux. At the highest gain setting (100X on the sensor and

10X in Science Workshop) the High Sensitivity Light

Sensor has a resolution of about 10 micro lux.

The Light Sensor may be used with or without the fiber

optics probe (available separately as PASCO part no.

003-01383). Greater sensitivity is achieved by measuring

light directly, without the probe attached.

The sensing element of the CI-6504A and CI-6604 Light

Sensors is a stable and electrically quiet Si PIN

photodiode. The photodiode is responsive across a wide

spectrum ranging from 320 nm through 1100 nm. The

response curve for the photodiode is shown in Figure 1.

HIGH SENSITIVITY

LIGHT SENSOR

CI-6604

100

GAIN

LIGHT

SENSOR

CI-6504A

100

GAIN

CI-6604

High Sensitivity

Light Sensor

aperture for photodiode

gain adjustment

DIN connector

CI-6504A

Light Sensor

interface cable

with 8-pin DIN

connectors

to computer

interface

1 2 3 4

Summary of Contents

Page 1 - HIGH SENSITIVITY LIGHT SENSOR

Page 2 - 012-06306D

012-06306D2Light Sensor and High Sensitivity Light SensorFigure 1. Spectral response curve of the photodiode00.10.20.30.40.50.60.7RELATIVE SENSITIVIT

Page 3 - Science Workshop

012-06306DLight Sensor and High Sensitivity Light Sensor314352678101100GAIN143521010GAINFigure 5. Mounting connector and alignment holeFigure 4. Set

Page 4

012-06306D4Light Sensor and High Sensitivity Light SensorEquipment ReturnShould the product have to be returned to PASCOscientific for any reason, not

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