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DESCO WEST 

- 3651 Walnut Avenue, Chino, CA 91710 • (909) 627-8178

DESCO EAST 

- One Colgate Way, Canton, MA 02021-1407 • (781) 821-8370 • Website: 

Desco.com

TB-3062

 Page 1 of 8

© 2013 DESCO INDUSTRIES, INC.

Employee Owned

Digital Surface Resistance Meter Kit

Installation, Operation and Maintenance

Description

The Desco 

19787

 Digital Surface Resistance Meter Kit is 

an instrument designed to measure resistance point-to-point 

(Rtt) or surface to ground (Rtg) in accordance with ESD 

Association Standard ANSI/ESD S4.1.
Its test funcitions include:

•  Resistance measurement accuracy of ±10% 

(±20% for resistance values 1 x 10

11

 and greater)

•  Resistance range of <1 x 10

3

 

ohms to >1 x 10

12

 

ohms

•  Under load voltages of 10 and 100 volts ±5%

•  Electrification period of approximately 15 seconds
The Digital Surface Resistance Meter also measures ambient 

temperature and relative humidity.
The Digital Surface Resistance Meter Kit and its accessories 

are available in the following item numbers:

April 2013

Figure 1.  Desco Digital Surface Resistance Meter Kit

The Surface Resistance Meter Kit (or its Meter) is referenced 

and designed to be used to make measurements in 

accordance with the test procedures in: 
•  Compliance Verification - ESD TR53 - Resistance  

Measurements

•  Worksurfaces - ANSI/ESD S4.1 Worksurfaces

•  Floors - ANSI/ESD S7.1- Resistive Characterization of 

Materials Floor Materials

 

•  Foot Grounders - ESD SP9.2 - Foot Grounders  

 

Resistive Characterization 

•  Garments - ANSI/ESD STM2.1 Garments 
•  Seating - ANSI/ESD STM12.1- Seating - Resistive 

Measurement 

•  Floor/Footwear - ANSI/ESD STM97.1 - Floor Materials 

and Footwear- Resistance Measurement in Combination 

with a Person

“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 section 7.3)

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

.

  TECHNICAL BULLETIN TB-3062 

Made in the

United States of America

Item

Description

19787

Digital Surface Resistance Meter Kit

19788

Digital Surface Resistance Meter

19783

Shielded Test Leads

50003

Five Pound Electrodes, 1 Pair

50004

Replacement T-Handles for Electrodes, 1 Pair

50005

Concentric Ring Probe

Summary of Contents for 19787

Page 1: ...r ANSI ESD STM97 1 Floor Materials and Footwear Resistance Measurement in Combination with a Person 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 t...

Page 2: ...Test Leads 5 Length 2 Five Pound Electrodes 2 AA Alkaline Batteries 1 Gator Clip 1 Plastic Carrying Case 1 Certificate of Calibration Figure 2 Desco 19787 Digital Surface Resistance Meter Kit Features and Components Figure 3 Desco 19788 Digital Surface Resistance Meter 19788 Digital Surface Resistance Meter 1 Digital Surface Resistance Meter 2 AA Alkaline Batteries 1 Certificate of Calibration FRO...

Page 3: ... Check Button When set to FULL the meter will cycle through the 15 second period that displays the temperature and relative humidity before the surface resistance mantissa is displayed When set to QUICK the meter will skip the 15 second period and immediately display the measured surface resistance mantissa G Test Button Push and hold this button to make a measurement with the meter Testing in acc...

Page 4: ...SD cleaner containing no insulative silicone such as Reztore Antistatic Surface Mat Cleaner and re test to determine if the cause of failure is an insulative dirt layer or the ESD worksurface material Figure 5 Rtg test setup Figure 6 Rtt test setup set the electrodes about 10 apart for worksurfaces and about 36 apart for flooring 10 Measure Resistance Point to Point Rtt on the Surface Do not clean...

Page 5: ...t and sleeve to sleeve resistance test should be made see ESD TR20 20 section 5 3 13 3 1 8 Periodic Testing Surface Resistivity Theoretically Resistivity is 10 times greater than Resistance For example a material that measures 107 ohms in surface resistance should measure 108 ohms square in surface resistivity Ref ANSI ESD STM11 11 section 12 0 Conversion to Resistivity states When it is appropria...

Page 6: ...ter accurate to 1 F Relative Humidity Meter accurate to 2 Test Leads 99 Isopropyl Alcohol and Cleaning Wipes Setup Test Area needs to be free of any high voltage transformers or power supplies and away from any type of fluorescent lighting or high power lighting Worksurface needs to be covered with a grounded conductive mat at 1 0 x 103 or less Technician needs to be connected to equipment ground ...

Page 7: ...mperature 75 F 3 F 23 9 C 1 7 C Relative Humidity 10 digits A 1 0 x 1012 20 LED 12 Yellow Mantissa 1 20 0 LED 12 Yellow Mantissa 1 00 20 LED 11 Yellow Mantissa 8 00 B 1 0 x 1011 20 LED 11 Yellow Mantissa 1 20 0 LED 11 Yellow Mantissa 1 00 20 LED 10 Green Mantissa 8 00 C 1 0 x 1010 10 LED 10 Green Mantissa 1 10 0 LED 10 Green Mantissa 1 00 10 LED 9 Green Mantissa 9 00 D 1 0 x 109 10 LED 9 Green Man...

Page 8: ...of 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 at 909 627 8178 Chino CA or 781 821 8370 Canton MA for a Return Material Authorization RMA and proper shipping instructions and address Desco will quote repair charges necessary to ...

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