Desco 19290 User Manual

DESCO EUROPE - 2A DUNHAMS LANE, LETCHWORTH, HERTFORDSHIRE, SG6 1BE, UK
Phone: +44 (0) 1462 672005 • E-mail: Service@DescoEurope.com, Website: DescoEurope.com
TB-3076.E Page 1 of 8
© 2018 DESCO INDUSTRIES INC
Employee Owned
Digital Surface Resistance Meter Kit
Installation, Operation and Maintenance
Description
The Desco 19290 Digital Surface Resistance Meter
Kit is an instrument designed to measure resistance
point-to-point (Rtt) or surface to ground (Rtg).
Its test functions include:
• Resistance measurement accuracy of ±10 %
(±20 % accuracy for 1 x 10
12
ohms 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. Up to 100
measurements may be stored and recalled from the
meter's internal memory. This includes the resistance
value, temperature, relative humidity and test voltage at
the time of the measurement.
October 2018
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:
• Working surfaces, storage racks, trolleys and seating -
IEC 61340-2-3
• Flooring - IEC 61340-4-1
• Garments - ANSI/ESD STM2.1 Garments
• Person/footwear / flooring system - IEC 61340-4-5
“A compliance verication plan shall be established to
ensure the organization’s fullment of the requirements
of the 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
used for process monitoring and measurements. If the
organization uses di󰀨erent test methods to replace
those of this standard, the organization shall be able
to show that the results achieved correlate with the
referenced standards. Where test methods are devised
for testing items not covered in this standard, these shall
be adequately documented including corresponding
test limits. 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 verication
plan.” (EN 61340-5-1 clause 5.2.4 Compliance
verication plan)
Reference Literature
In addition to those noted above:
EN 61340-5-1 Electrostatics and PD CLC/TR 61340-5-2 User
Guide Electrostatics
These documents can be obtained from from British
Standards at www.bsigroup.com.
Made in the
United States of America
TECHNICAL BULLETIN TB-3076.E
EUROPE
Figure 1. Desco Digital Surface Resistance Meter Kit

Desco 19290 Specifications

General

Model	19290
Category	Measuring Instruments
Manufacturer	Desco
Resistance Range	10^3 to 10^12 ohms
Accuracy	±10%
Power Source	9V Battery
Measurement Range	10^3 to 10^12 ohms
Power Supply	9V Battery
Weight	0.5 lbs
Type	Surface Resistance Meter
Test Voltage	10V / 100V
Standards Met	ANSI/ESD S4.1

Summary

Description

Test Functions

Details the resistance measurement accuracy, range, load voltages, and electrification period.

Ambient Measurement Capabilities

Informs about the meter's ability to measure ambient temperature and humidity.

Reference Standards and Literature

Referenced Test Procedures

Lists standards for measuring surface resistance of various items like flooring and garments.

Compliance Verification Plan Requirements

Explains requirements for establishing and documenting a compliance verification plan.

Additional Reference Documents

Provides additional EN standards and user guides for electrostatics.

Product Components and Packaging

Accessory Item Numbers

Lists Desco 19290 Digital Surface Resistance Meter Kit accessories with item numbers.

19290 Kit Packaging Contents

Details items included in the Desco 19290 Digital Surface Resistance Meter Kit.

19291 Meter Packaging Contents

Details items included with the Desco 19291 Digital Surface Resistance Meter.

Device Features and Controls

Test Jacks and Connectors

Describes the shielded black test lead SMA connector and red test lead banana plug.

Exponent Indicator LEDs

Explains colour-coded LEDs indicating the surface resistance exponent value.

OLED Display Information

Details the display showing temperature, humidity, battery, voltage, and resistance.

Power and Operation Buttons

Describes the power switch and the pushbuttons for operation and menu navigation.

Battery Compartment Location

Location to install and replace the four AA alkaline batteries powering the meter.

Operation and Settings Configuration

General Operating Guidelines

Provides advice on using electrodes, placement, and minimising lead crossing.

Settings Menu Options

Explains how to configure temperature units, stabilisation, and beep function.

Memory Management Functions

Details how to erase all stored measurement transactions from the meter's memory.

Measure Resistance-to-Ground (Rtg)

Rtg Test Procedure Steps

Step-by-step guide for measuring resistance to ground using the meter and electrode.

Measure Resistance Point-to-Point (Rtt)

Rtt Test Procedure Steps

Step-by-step guide for measuring point-to-point resistance using the meter and electrodes.

Maintenance and Cleaning

Battery Replacement Procedure

Instructions for replacing the meter's four AA alkaline batteries.

Cleaning Meter and Electrodes

Guidance on cleaning the meter's test jacks and the 2.27 kg electrodes.

Calibration Procedures

Recommended Recalibration Frequency

Recommends annual calibration based on critical item nature and risk of failure.

Calibration Verification Process

Procedure to verify meter accuracy using a voltmeter and resistance decade box.

Test Area and Setup Requirements

Requirements for the test area, worksurface, technician grounding, and decade box setup.

Meter Normalisation Conditions

Specifies temperature and humidity conditions for meter normalisation.

Product Specifications and Warranty

Technical Specifications

Details resistance ranges, accuracy, operating temperature, and dimensions.

Warranty and Support Information

Provides information on limited warranty, exclusions, and RMA requests via website.