Desco 19784 Installation Manual

TECHNICAL BULLETIN TB-3046

Analog Surface Resistance Test Kit
Operation and Maintenance

Compliance Verication Plan

“A Compliance Verication Plan shall be established
to ensure the Organization’s fulllment of the technical
requirements of the ESD Control Program Plan.
Process monitoring (measurements) shall be conducted
in accordance with a Compliance Verication Plan that
identies the technical requirements to be veried, the
measurement limits and the frequency at which those
verications shall occur. The Compliance Verication
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 the document, then
there must be a tailoring statement that is documented
as part of the ESD Control Program Plan. Compliance
verication 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 dened in the Compliance

Figure 1. Desco 19784 Analog Surface Resistance Test
Kit

Description

The Desco Analog Surface Resistance Test Kit is
a portable battery-powered instrument designed to
measure resistance point-to-point (RTT) and surface to
ground (RTG). The meter is equipped with an automatic
test voltage selector. The test voltage will switch from
10V to 100V should the measured resistance exceed
10E5 ohms.

ESD protected area products should be tested:
A. Prior to installation to qualify for listing in user’s ESD
control plan. Approved ESD materials (see product
qualication table at ANSI/ESD S20.20-2007 Table 3
EPA ESD control items)

B. During initial installation

C. For periodic checks of installed products as part of
ANSI/ESD S20.20-2007 Compliance Verication
testing per ESD TR53.

Verication Plan.” (ANSI/ESD S20.20-2007 section 7.3)

The Analog Surface Resistance Meter and its
accessories are available as the following item numbers:

Item Description

19784 Analog Surface Resistance Test Kit

19786 Analog Surface Resistance Meter

19785 Shielded Test Leads

50003 Electrodes, 5 lbs.

Packaging

19784 Analog Surface Resistance Test Kit

1 Analog Surface Resistance Meter
1 9V Alkaline Battery
2 Shielded Test Leads
2 Five Pound Electrodes
1 Plastic Carrying Case
1 Certicate of Calibration

19786 Analog Surface Resistance Meter

1 Analog Surface Resistance Meter
1 9V Alkaline Battery
1 Certicate of Calibration

Made in America

(Test Leads and Electrodes Included)

TB-3046 Page 1 of 4

DESCO EAST - One Colgate Way, Canton, MA 02021-1407 • [phone] • Fax [phone] • Website: Desco.com

DESCO WEST - 3651 Walnut Avenue, Chino, CA 91710 • [phone] • Fax [phone]

January 2011

© 2010 DESCO INDUSTRIES, INC.

Employee Owned

Features and Components

A

B

C

Figure 2. Analog Surface Resistance Meter features and
components

D

E

4. Use one 5 pound electrode on the other test lead
and place it at the center of the surface.

5. Set the Test Voltage Button to AUTO. Press and
hold the the TEST button until the measurement is
displayed (see Figure 3).

6. Perform additional measurements by placing the
electrode on the most commonly used or worn
areas.

CAUTION: If there is a current limiting resistor in the
worksurface and the worksurface resistance is lower,
the measurement will primarily be the resistance of the
resistor. It is recommended to measure RTT particularly
if the material color is black.

A. Analog Display: Displays surface resistance
measurements from 10E3 - 10E13 ohms.

B. Resistance Property LEDs: Color-coded LEDs that
provide quick-check resistance indicators.

C. Test Button: Hold this button down to operate the
Analog Surface Resistance meter.

D. Low Battery LED: Illuminates when the battery
power drops below 5.5V.

E. Test Voltage Button: Test voltage will automatically
switch from 10V to 100V when set to AUTO. Test
voltage will stay at 10V HOLD when set to 10V.

Operation

Compliance Verication Test Procedure Guideline

The ESD Association lists test procedures and
troubleshooting tips in Compliance Verication ESD
TR53.

NOTE: The test kit can be used to measure RTG and
RTT of shelves, garments, oor and cart worksurfaces
using test procedures similar to worksurfaces and foot
grounders.

MEASURE WORKSURFACE RESISTANCE TO

GROUND (RTG)

1. Do not clean the surface.

2. Remove all ESD sensitive items from the surface
and items that might interfere with the test.

3. Connect one lead banana plug to ground.

Figure 3. Using the test leads and one 5 pound electrode
to measure RTG

MEASURE WORKSURFACE RESISTANCE POINT-TO­POINT ON THE SURFACE (RTT)

1. Do not clean the surface.

2. Remove all ESD sensitive items from the surface
and items that might interfere with the test.

3. Use two 5 pound electrodes and place them 10"
apart on the most frequently used area of the
surface (2" from any edge, 3" from any groundable
point).

4. If the most used area of the surface is not obvious,
use two points near the center of the surface.

5. Set the Test Voltage Button to AUTO. Press and
hold the TEST button until the measurement is
displayed (see Figure 4).

TB-3046 Page 2 of 4

DESCO EAST - One Colgate Way, Canton, MA 02021-1407 • [phone] • Fax [phone] • Website: Desco.com

DESCO WEST - 3651 Walnut Avenue, Chino, CA 91710 • [phone] • Fax [phone]

© 2010 DESCO INDUSTRIES, INC.

Employee Owned