PS-2111
Page 2 of 7
ESD protective products
should be tested:
A. Prior to installation to qualify for
listing in user's ESD control plan
approved ESD protective materials
B. During initial installation
C. For periodic checks of installed
products as part of ESD control plan
compliance verification plan
“A Compliance Verification Plan shall
be established to ensure the
Organization’s fulfillment of the
technical requirements of the ESD
Control Program Plan. Process
monitoring (measurements) shall be
conducted in accordance with a
Compliance Verification Plan that
identifies the technical requirements to
be verified, the measurement limits and
the frequency at which those
verifications shall occur. The
Compliance Verification Plan shall
document the test methods and
equipment used for process monitoring
and measurements. If the test methods
used by the Organization differ from
any of the standards referenced in this
document, then there must be a tailoring
statement that is documented as part of
the ESD Control Program Plan.
Compliance verification records shall be
established and maintained to provide
evidence of conformity to the technical
requirements.
The test equipment selected shall be
capable of making the measurements
defined in the Compliance Verification
Plan.” (ANSI/ESD S20.20-2007 section
7.3)
Electrification Period
The Surface Resistance Test Kit
provides the proper electrification
period of 15 seconds per ESD S4.1,
after numerous readings and
calculations are executed, then displays
surface resistance mantissa
measurement (Note: most analog type
meters display measurements
instantaneously).
When the Test Button is depressed, the
liquid crystal display (LCD) will
indicate:
• Temperature in degrees Fahrenheit
(tolerance ±5°F, typical)
• Temperature in degrees Celsius
(tolerance ±3°C, typical)
• Humidity as percentage (from 5% -
95% tolerance, ±10 typical)
• Surface resistance mantissa (with
exponent displayed via LED,
measurement in ohms)
Measurement being displayed is
identified by the illuminated function
LED. The surface resistance exponent
(or power of number) is immediately
illuminated and remains illuminated
measuring the range the surface
resistance in ohms.
Reference Literature
In addition to those noted above:
ANSI/ESD S20.20 - Development of
ESD Control Program
ESD ADV1.0 - Glossary of Terms
ANSI/ESD S6.1 Grounding
These documents can be obtained
directly from the ESD Association, 7902
Turin Rd., Suite 4, Rome, NY 13440-
2069, (315) 339-6937 or www.esda.org.
Other standards are available from the
agencies who produce them. MIL-
HDBK 263A, EIA-IS-5-A,
ASTM-F-150, EN 100015, and EIA-
625. If you need help in obtaining these
documents, please contact our customer
service department.
Features
A. LED Displays:
Surface resistance
exponent is displayed via light emitting
diodes illuminating 1/8" high number.
There are 12 LEDs displaying surface
resistance exponent measurement. They
are color coded for quick checks:
Exponent
Color
<3, 3
Red
4, 5
Green
6, 7, 8
Blue
9, 10, 11
Green
12, >12
Yellow
Five Function LED’s identify the
measurement being displayed (see B
below).
• When battery voltage drops to
approximately 2 volts, one of the
Function LED's to the right of the red
pushbutton switch will begin to flash,
indicating the need to replace
batteries.
A
B
C
D
E
F
G
© 2007 DESCO INDUSTRIES INC.
Employee Owned
B. Liquid Crystal Display (LCD):
Mantissa is displayed via 9/16" high
liquid crystal display and provides easy
to read resistance (or resistivity)
measurements.
When the Test Button is depressed, the
LCD will indicate:
• Temperature in degrees Fahrenheit
• Temperature in degrees Celsius
• Humidity as percentage
• Surface resistance mantissa (with
exponent displayed via LED,
measurement in ohms)
Surface resistance ohm values are
expressed with a mantissa and exponent
or power of the number. For example, if
"8" is illuminated by its LED and the
LCD displays a mantissa of "7.14", the
measurement is 7.14 x 10E8 ohms or
714,000,000 ohms
If surface is over 10E13 ohms, the
following will appear:
• "1____" on the LCD display indicate
Overrange or that the reading exceeds
the display capabilities
Figure 2. Features of the Surface
Resistance Meter
