ESD SYSTEMS 41222 User Manual

Dual Operator Workstation Continuous Monitor with
Satellites - Operation, Installation and Maintenance
Tech Brief
PS-2119 April 2007 Page 1 of 4
Description
Leading companies use continuous
monitors as a cost effective component
in satisfying the paragraph 6.1.3
Compliance Verification Plan
requirements of ANSI/ESD S20.20. The
ESD Systems.com Dual Operator
Continuous Monitor with Satellites
continuously monitors the grounding
integrity of two operators, and two ESD
worksurfaces' path to ground. The
monitor will provide instantaneous
notification of static control equipment
failures, and eliminates the need of
costly and difficult to supervise wrist
strap logging record keeping. This unit
is highly cost effective as it is designed
to monitor any conventional single-wire
wrist strap and ground cord system.
Per ESD Handbook TR 20.20 paragraph
5.3.2.4.4 Test Frequency, "Because wrist
straps have a finite life, it is important
to develop a test frequency that will
guarantee integrity of the system.
Typical test programs recommend that
wrist straps that are used daily should
be tested daily. However, if the products
that are being produced are of such
value that knowledge of a continuous,
reliable ground is needed, then
continuous monitoring should be
considered or even required."
The Dual Operator Continuous Monitor
with Satellites is available in two
models.
The Dual Operator Continuous Monitor
with Satellites is an impedance sensing
device designed to monitor body types
from a 5th percentile female to a 95th
percentile male. This range covers a 5
foot tall 90 pound person to a 6 foot 5
inch 250 pound person in any produc-
tion environment.* The 41222 is
powered by a 120 VAC, 60/50 Hz, plug-
in transformer which also provides
connection to ground.
No user adjustment required: The
Continuous Monitor is drift-free and
designed to be insensitive to the effects
of squeezing or stretching the coil cord.
It requires no user adjustment.
The Dual Operator Workstation
Continuous Monitor is a real time
instrument that ensures that critical ESD
control components in a sensitive area
are effectively grounded. It
independently monitors the operator and
the work surface. The instant an
operator's wrist strap or cord fails, the
monitor will issue audible and visual
alarms alerting the user of the problem.
In the same manner, the unit also
confirms that a path to ground of less
than 10 megohms (1 x 10E7 ohms)
exists from the ESD protective work
surface(s).
ADVANTAGES OF CONTINUOUS
MONITORING OVER PERIODIC
TESTING
Many customers are eliminating
periodic touch testing of wrist straps
and are utilizing continuous monitoring
to better ensure that their products were
manufactured in an ESD protected
environment. Full time continuous
monitoring is superior to periodic or
pulsed testing, and can save a
significant amount of money in testing
Figure 1. ESD Systems.com Dual Operator Continuous Monitor with Satellites
Position Satellite Remote Monitor where most convenient for operator.
Position Monitor Control Unit for optimal supervisor visibility.
ESD Systems.com • 432 Northboro Road Central • Marlboro, MA 01752 • (508) 485-7390 • Fax (508) 480-0257 • Web Site: ESDSystems.com
© 2007 DESCO INDUSTRIES INC.
Employee Owned
Made in America
*NASA Publication 1024-Anthropomorphic
Source Book Volume 1: “Anthropometry for
Designers”
** Per ANSI/ESD S20.20 paragraph 6.0.3.
Tailoring "This document, or portions thereof,
may not apply to all applications. Tailoring is
accomplished by evaluating the applicability of
each requirement for the specific application.
Upon completion of the evaluation, requirements
may be added, modified or deleted. Tailoring
decisions, including rationale, shall be
documented in the ESD Control Program Plan."
Model Voltage AC
41222 120 Volt
41223 220 Volt

ESD SYSTEMS 41222 Specifications

General

Brand	ESD SYSTEMS
Model	41222
Category	Monitor
Language	English

Summary

Description of Dual Operator Continuous Monitor

Testing Frequency and Continuous Monitoring

Discusses the need for continuous monitoring based on ESD testing frequency recommendations.

No User Adjustment Required

The monitor is drift-free and insensitive to coil cord effects, requiring no user adjustments.

Advantages of Continuous Monitoring

Over Periodic Testing

Continuous monitoring eliminates periodic touch testing, ensuring products are made in an ESD protected environment.

Wave Distortion Technology

True 100% Continuous Monitoring

Utilizes wave distortion circuitry to monitor phase shifts, providing true 100% continuous monitoring.

Advantages of Wave Distortion and Single-Wire Technology

Cost-Effectiveness and System Lifecycle

Single-wire systems offer lower lifecycle costs than dual-wire systems, which are more expensive and prone to failure.

Reliable Continuous Monitoring

Wave distortion technology provides reliable monitoring, unlike pulsed systems that miss intervals.

Worksurface Compatibility

Material Requirements and Limits

Requires conductive layers and limits ground point connection to 10 megohms (1 x 10E7 ohms).

Installation Overview

Monitor Control Unit Placement

The monitor control unit is typically installed under the bench top for easy visibility of LEDs.

Satellite Remote Monitors

Placement and Grounding

Monitors can be placed up to 7 feet away and require proper connection to the worksurface grounding point.

Installation Procedure

Wiring Connections

Details connecting satellite units, worksurface cords, and power adapter for the monitor.

Installation on Micastat Laminate

Specific steps for installing the monitor with Micastat laminate, including flush mount inserts.

Operation Guide

Using the Monitor and Satellites

Instructions for connecting wrist straps, checking LEDs, and handling cord detachment or park function.

Work Surface Channel Monitoring

Resistance Monitoring

Monitors static dissipative surfaces up to 1x 10E7 ohms, alarming if resistance exceeds the set threshold.

Specifications

Key Technical Parameters

Lists parameters such as supervisor jack resistance, worksurface limit, operating voltage, and response time.

Maintenance and Calibration

Solid State Design and Calibration

The monitor is solid state, maintenance-free, and calibrated to NIST standards annually.

Warranty and Liability

Limited Warranty Information

Covers defects in material and workmanship for one year, with exclusions for misuse or neglect.

Limit of Liability

States that ESD Systems.com is not liable for injury, loss, or damage arising from product use or inability to use.