Global Specialties CDB-10 - Manual - Manual

Model CDB-10 from Global Specialties is a hand held Capacitance decade box that creates a specific
capacitance value using a combination of switches. Designed with accuracy to meet the needs of industry
and education alike.
The CDB-10 is a compact, convenient tool for aiding in engineering design and testing as well as calibration
of test equipment.
It offers 5 decades of capacitance ranges, from 100 picoFarads to over 11 microFarads in 100 picoFarad
steps. Easy-to-use slide switches allow for straightforward addition and subtraction of capacitor values. CDB-
10 is a passive device that requires no power source.
Global Specialties
22820 Savi Ranch Parkway
Yorba Linda, CA 92887
1-800-572-1028
www.globalspecialties.com
Innovative Training Solutions
Decade Box
CDB-10 User Manual
Operation
Binding Post Connections
To connect the CDB-10, connect the positive lead to
the RED post and the negative lead to the BLACK
post. To make the connection, a banana plug can be
inserted directly into the posts. An alternate method
is to thread wire through the posts. In order to do
this, unscrew the post, thread your wire, and re-
tighten the post as necessary. An alligator clip can be
attached to the plugs as well. Use alligator clips with
caution to avoid wearing down the posts.
Range Selection
The CDB-10 contains 20 switches organized in a 4
x 5 grid. Each row offers 5 decades of capacitance
ranges starting at 100pF and ending at 1uF. When a
switch is in the ON position, the value marked above
the switch is added to the total capacitance. For ex-
ample, to obtain an output capacitance of 7.32 uF,
the switches 4 uF, 3 uF, 0.3 uF, and 0.02 uF will
be in the ON position.
Testing
The CDB-10 can be used for calibration of your test
equipment due to its 5% accuracy. For calibration,
set the CDB-10 to the desired value and connect
the terminals of your test equipment to the output
of CDB-10. The readout of the device you are test-
ing should be the selected capacitance value (+ 50
pF residual capacitance – approx). If not, adjust the
device you are testing accordingly.
Features
> Calibrate test equipment with high accuracy of 5%
> 20 switches organized in a clean 4 x 5 grid for
easy use
> All switches clearly display a visible white dot
when in the ON position
> Includes a protective rubber holster with tilt-stand
for ease of use and viewing
> Ideal for service, prototype and experimental and
educational use
> Set at any capacitance value from 100 pF to over
11 µ F in 100 pF increments
> Input terminals accept standard banana plugs,
bare wires, spade lugs or alligator clips
> One Year Warranty
Specifications
Capacitance: 100 pF to 11.111 µ F in 100 pF steps
Internal Residual: 50 pF Cap maximum
Voltage limit: 50 VDC (non-polarized capacitors)
Connection: Two (2) binding posts
Accuracy : 5 % (< 1 µ F: 1 kHz test frequency;
> 1 µ F: 100 Hz test frequency)
Operating conditions: Temp: 32 to 122 oF (0 to 50 oC)
Humidity: < 80 %RH
Dimensions: 6" x 3.7" x 1.9"
Weight: Approx.: 0.95 lbs