Desco 19780, Operation And Maintenance

Page: 1 / 8

TB-3014 April 2013 Page 1 of 7
Surface Resistance Test Kit
Operation and Maintenance
Figure 1. Desco 19780 Surface Resistance Test Kit
Description
The Surface Resistance Test Kit is a portable, accurate,
and versatile instrument designed to measure resistance
point-to-point (Rtt), surface to ground (Rtg), and surface
resistivity in accordance with ESD Association Standard
ANSI/ESD S4.1 including:
• Resistance measuring accuracy ± 10%
(E11 & greater ±20%)
• Resistance range <1.0 x 10E3 ohms to >10E12 ohms
• Under load voltages of 10 and 100 volts ± 5%
• Electrification period of 15 seconds
• Electrodes (two) 5 pounds ± 2 oz with 50-70 durometer
conductive pads
In addition, the Meter measures ambient temperature and
relative humidity.
The Surface Resistance Test Kit (or its Meter) is referenced
and designed to be used to make measurements in
accordance with the test methods in:
• Worksurfaces - ANSI/ESD S4.1 Worksurfaces
Compliance Verification - ESD TR53 - Resistance
Measurements
• Floors - ANSI/ESD S7.1-
Resistive Characterization of
Materials Floor Materials
• Footwear - ESD S9.2 - Footwear -
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
• Workstations - ESD-ADV53.1 -
ESD Protective Workstations
Versatility:
Measures Rtt, Rtg or Resistivity (requires optional
Resistivity Attachment, EMIT item 50560 )
• Quick Checks - Surface resistance exponent number
illuminates immediately i.e. 8 = 10E8 ohms or
100,000,000 ohms
• Compliance Verification - Surface resistance
exponent number illuminates immediately and displays
Temperature and Relative Humidity during 15 second
electrification period making numerous measure ments
and calculations to then display mantissa i.e. if LED
displays 8 and LCD displaying 7.14 as mantissa = 7.14 x
10E8 ohms or 714,000,000 ohms
• Test Lab Evaluation of Product - Display same as
Compliance Verification above
The Surface Resistance Test Kit is NIST calibrated and
items available are:
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
TECHNICAL BULLETIN TB-3014
Made in the
United States ofAmerica
© 2013 DESCO INDUSTRIES INC.
Employee Owned
Model Description Power
19780 Surface Resistance Test Kit 2 x AA Batteries
19781 Meter & Attachment 2 x AA Batteries
50560 Resistivity Attachment N/A
Desco 19780 includes two 5 pound electrodes (item 50003 )
and Test Leads (item 19783 ) which also can be bought
separately.
Inspection
Remove the meter from the carton and inspect for damage.
Each Surface Resistance Test Kit should include the
following:
1 Protective carrying case
1 Meter
2 Test leads
2 5 pound electrodes
2 AA alkaline batteries
1 Gator clip
1 Certificate of Calibration