Desco 50005 Instructions d'installation et d'utilisation
TB-3063 Page 1 of 3 © 2013 DESCO INDUSTRIES, INC.
Employee Owned
Concentric Ring Probe
Installation, Operation and Maintenance
June 2013
Resistivity and Resistance
Per ANSI/ESD STM11.11 section 12.0 “CONVERSION TO
RESISTIVITY, When it is appropriate to convert a resistance
obtained by this test method to an equivalent resistivity in
ohms per square, multiply the resistance measurements
obtained by this method by ten. The conversion factor of ten
is derived from the geometry of the electrode assembly.
NOTE: Conversions to resistivity may not be valid for
materials that are laminated, plated or metallized with
conductive materials. This fact should be understood
when users of this test procedure are required to satisfy
specifications given in “ohms/square.”
Repeatability
Per ANSI/ESD STM11.11 section 4.0 “REPEATABILITY,
This test method has been shown to have a repeatability
of approximately one half order of magnitude” in controlled
environments.
Packaging
1 Concentric Ring Probe
1 BNC / Banana Jack Adapter
Operation
1. Connect the Concentric Ring Probe to a resistance
meter using the included BNC / banana jack adapter and
the meter’s test leads.
2. Place the material to be tested on an insulative surface.
3. Place the Concentric Ring Probe on top of the material
to be tested.
4. Take a resistance measurement using the resistance
meter.
TECHNICAL BULLETIN TB-3063
Made in the
United Kingdom
Item Description
19787 Digital Surface Resistance Meter Kit
19788 Digital Surface Resistance Meter
19784 Analog Surface Resistance Meter Kit
19786 Analog Surface Resistance Meter
19640 Surface Resistance Checker
Figure 1. Desco 50005 Concentric Ring Probe
Description
The Desco
50005
Concentric Ring Probe is an instrument to
be used in conjunction with a resistance meter, such as the
Desco 19787 Digital Surface Resistance Meter, to measure
surface resistance per ANSI/ESD STM11.11 the test method
listed in Packaging standard ANSI/ESD S541 for surface
resistance of planar materials.
The Concentric Ring Probe (Ref: ANSI/ESD STM11.12) can
measure the volume resistance of planar materials using a
flat conductive metal plate (not included).
The Concentric Ring Probe may be used for the resistance
measurements of ESD packaging including static shielding
and other bags.
The Desco Concentric Ring Probe is compatible with the
following Desco Surface Resistance Meters:
www. .com information@itm.com1.800.561.8187
TB-3063 Page 2 of 3 © 2013 DESCO INDUSTRIES, INC.
Employee Owned
Figure 4. Using the Concentric Ring Probe with the
Desco Surface Resistance Checker
Specifications
Weight 5.8 lbs (2.6 kg)
Dimensions 2.8" diameter x 6.5" height
(7.1 cm diameter x 16.5 cm height)
(with BNC / banana jack adapter)
Outer Probe Diameter 2.5" (63 mm)
Inner Probe Diameter 1.2" (30 mm)
Insulation Resistance
Between Probes >1 x 1012 ohms @ 500V
Probe Resistance of
Carbon Pads <100 ohms at low test voltage
Figure 3. Using the Concentric Ring Probe with the
Desco Analog Surface Resistance Meter
Figure 2. Using the Concentric Ring Probe with the
Desco Digital Surface Resistance Meter
www. .com information@itm.com1.800.561.8187
TB-3063 Page 3 of 3 © 2013 DESCO INDUSTRIES, INC.
Employee Owned
Limited Warranty
Desco expressly warrants that for a period of one (1) year from the date of purchase Desco Concentric Ring Probes will be free of defects in material
(parts) and workmanship (labor). Within the warranty period, a credit for purchase of replacement Desco Concentric Ring Probes, or, at Desco’s option,
the Concentric Ring Probe will be repaired or replaced free of charge. If product credit is issued, the amount will be calculated by multiplying the unused
portion of the expected one year life times the original unit purchase price. Please include a copy of your original packing slip, invoice, or other proof of
date of purchase. Any unit under warranty should be shipped prepaid to the Desco factory. Warranty replacements will take approximately two weeks.
If your unit is out of warranty, call our Customer Service Department for a Return Material Authorization (RMA) and proper shipping instructions and
address. Desco will quote repair charges necessary to bring your unit up to factory standards.
Warranty Exclusions
THE FOREGOING EXPRESS WARRANTY IS MADE IN LIEU OF ALL OTHER PRODUCT WARRANTIES, EXPRESSED AND IMPLIED, INCLUDING
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE WHICH ARE SPECIFICALLY DISCLAIMED. The express warranty will not apply to
defects or damage due to accidents, neglect, misuse, alterations, operator error, or failure to properly maintain, clean or repair products.
Limit of Liability
In no event will Desco or any seller be responsible or liable for any injury, loss or damage, direct or consequential, arising out of the use of or the inability
to use the product. Before using, users shall determine the suitability of the product for their intended use, and users assume all risk and liability
whatsoever in connection therewith.
www. .com information@itm.com1.800.561.8187
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