012-06306D
2
Light Sensor and High Sensitivity Light Sensor
Figure 1. Spectral response curve of the photodiode
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
RELATIVE SENSITIVITY
W A V E L E N G T H ( n m )
200
4 0 0
6 0 0
8 0 0
1 0 0 0
S p e c t r a l R e s p o n s e
The Light Sensor can be plugged directly into any
PASCO computer interface box or can be connected to
the interface box using the supplied cable with DIN
connectors.
Equipment Included:
• Light Sensor
• 6-foot cable with 8-pin DIN connectors
Additional Equipment Required:
• Any PASCO computer interface
(300, 500, or 700 Science Workshop
®
series for
Macintosh or Windows or the 6500 series interface
for DOS)
➤
Note:
The manual has been written with the
assumption that the user has a basic familiarity with
Science Workshop and has access to the User’s
Guide for Science Workshop. Users can gain basic
skills with Science Workshop by working through
the tutorial within Science Workshop. Another
useful resource is the Quick Reference Card for
Science Workshop.
Setup Procedure
➀
Connect the Light Sensor and any analog channel of
the interface box with the interface cable (Figure 2A),
or
insert the DIN plug of the Light Sensor into the jack
of any analog channel of the interface box (Figure
2B).
Figure 2. Connecting the Light Sensor and the computer
interface
B
Interface
500
1
2
GAIN=1,10:ISOLATED
GAIN =
1,10: REF TO GND
GAIN =
1: REF TO GND
A
s
C
ON
ANALOG CHANNELS
B
n
DIGITAL CHANNELS
ScienceWorkshop
™
P
R E S S
T
O
L O
G
®
LIGHT
SENSOR
CI-6504A
10
1
100
GAIN
10
1
100
GAIN
LIGHT
SENSOR
CI-6504A
P
R E S S
T
O
L O
G
Interface
500
®
1
2
GAIN=1,10:ISOLATED
GAIN =
1,10: REF TO GND
GAIN =
1: REF TO GND
A
s
C
ON
ANALOG CHANNELS
B
n
DIGITAL CHANNELS
ScienceWorkshop
™
A
➁
If the fiber optics probe (PASCO part no.
003-01383) is to be used, attach it by slipping the
connector of the fiber optics probe over the input
connector on the Light Sensor (Figure 3). A quarter
twist clockwise locks the probe to the Light Sensor.
(To disconnect, press the connector towards the
sensor box, turn it counterclockwise one-quarter
turn, and pull away from the box.)
➂
Open the Experiment Setup window in
Science Workshop. Click and drag the analog plug
icon to the analog channel icon that matches the
analog port you are using for the Light Sensor.
NOTE:
Use care when handling the
fiber optics probe. The optical fibers
inside may be damaged if the cable is
bent sharply. Do not coil tighter than a 10 cm (4 in.)
diameter circle. Be sure not to damage the input end
of the probe; scratches may impair light
transmission.
10
1
100
GAIN
LIGHT
SENSOR
CI-6504A
Light sensor
Rotate ring
one-quarter
turn to secure
probe connector
Figure 3. Attaching the fiber optics probe to the Light
Sensor
Plug into
any analog
channel.
Plug into any
analog
channel.
