PASCO CI-6556 User Manual
Instruction Sheet
for the PASCO
Model CI-6556
- terminal
012-06431B
5/97
$1.00
CURRENT SENSOR
+ terminal
CURRENT
1.00Ω
Current Sensor
+
CI-6556
MAX CURRENT: ±1.5A
CURRENT
SENSOR
DIN connector
I
Introduction
The PASCO CI-6556 Current Sensor is designed to be
used with a PASCO computer interface to measure
currents of ±1.5 amperes.
The Current Sensor can be plugged directly into any
analog channel (A,B, or C) on the PASCO 700i Science
Workshop interface or analog channel A on the 300i or
500i Science Workshop interface. This is because the
Current Sensor should only be connected to a non-ground
referenced, differential input.
interface cable with
8-pin DIN
connectors
to computer interface
Equipment
Equipment Included:
• Current Sensor
• 6-foot cable with 8-pin DIN connectors
Additional Equipment Required:
• Any PASCO Science W orkshop
(300, 500, or 700 series for Macintosh or Windows)
or the 6500 series interface for DOS
• patch cords (SE-9415)
computer interface
Current passing through the two input connectors
develops a voltage across the 1.00 Ω, 2 W resistor in the
Current Sensor. The voltage developed at the resistor is
related to the current according to Ohm's Law:
V = I x R
(where V = voltage in volts, I = current in amps, and R =
resistance in ohms).
Since the Current Sensor utilizes a 1.00 Ω resistor, the
voltage seen across the resistor is equal to the current
flowing through the resistor. The computer interface
channels this voltage into Science Workshop, which
reports the value in amperes (A) of current.
®
10101 Foothills Blvd. • P.O. Box 619011 • Roseville, CA 95678-9011 USA
Phone (916) 786-3800 • FAX (916) 786-8905 • web: www.pasco.com
Do not connect to currents greater
than 1.5 A. Connecting to a source
that causes a current of greater than
1.5 A will permanently damage the
Current Sensor.
© 1997 PASCO scientific
better
ways to
teach science
Current Sensor
012-06431B
Setup Procedure
Science Workshop Setup
➀ Connect the Current Sensor to any differential input
analog channel on the computer interface box with
interface cable (Figure 1a),
or
insert the DIN plug of the Current Sensor into the
jack of any differential input analog channel on the
computer interface box (Figure 1b).
ANALOG CHANNELS
™
ScienceWorkshop
®
s
n
A
C
500
Interface
E
S
R
S
1
A b
a
P
T
G
O
O
L
DIGITAL CHANNELS
B
2
ON
=
GAIN
GAIN
=
GAIN
1,10:ISOLATED
1,10: REF TO GND
1: REF TO GND
Plug into a
differential
input analog
channel.
SENSOR
CURRENT
CI-6556
I
MAX CURRENT: ±1.5A
1.00Ω
+
CURRENT
=
ANALOG CHANNELS
™
ScienceWorkshop
®
s
n
A
C
2
ON
=
GAIN
1,10:ISOLATED
Plug into a
B
=
=
GAIN
GAIN
1,10: REF TO GND
1: REF TO GND
500
Interface
E
S
R
S
1
P
T
G
O
O
L
DIGITAL CHANNELS
CURRENT
1.00Ω
+
CI-6556
MAX CURRENT: ±1.5A
CURRENT
SENSOR
I
differential
input analog
channel.
➂ Select "Current Sensor" from the drop-down menu
(Figure 3).
Figure 3. Setting up the Current Sensor in Science
Workshop.
➃ Open a display window, such as the Digits display, by
dragging and dropping the appropriate display icon to
the Current Sensor icon (Figure 4).
Figure 1. Connecting the Current Sensor into the
computer interface.
➁ Open the Experiment Setup window in
Science W orkshop. Click and drag the analog plug icon
to the analog channel icon that matches the analog
port you are using for the Current Sensor (Figure 2).
Figure 2. Activating the analog channel in
Science W orkshop.
Figure 4. Opening a Display window in Science W orkshop.
➄ Additional display windows can be opened by
following the procedure in step 4.
2
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