3M ESD Pro Manual de usuario

3M™ESD Pro User’s Guide

ESD Event Indicator

Model CTM082

3M™ESD Pro

Model CTM082

EXPLANATION OF SIGNAL WORD CONSEQUENCES

▲WARNING: Indicates a potentially hazardous situation, which, if not avoided, could result in

death or serious injury and/or property damage.

▲CAUTION: Indicates a potentially hazardous situation, which, if not avoided, may result in

minor or moderate injury and/or property damage.

NOTICE: Indicates a potentially hazardous situation, which, if not avoided, may result in

property damage.

▲ WARNING

To reduce the risks associated with environmental contamination:

When working with the automated equipment, always observe safety precautions as

recommended by equipment manufacturer and your company’s practices

▲ CAUTION

To reduce the risks associated with environmental contamination:

Dispose of the monitor in accordance with local, state, and federal regulations

NOTICE

To reduce the risks associated with property damage:

Periodically check that the indicator is functioning properly

FCC

This device complies with Part 15 of the FCC Rules. Operation is subject to the following two

conditions: (1) this device may not cause harmful interference, and (2) this device must accept any

interference received, including interference that may cause undesired operation.

Note: This equipment has been tested and found to comply with the limits for a Class A digital device,

pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection

against harmful interference when the equipment is operated in a commercial environment. This

equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in

accordance with the instruction manual, may cause harmful interference to radio communications.

Operation of this equipment in a residential area is likely to cause harmful interference in which case

the user will be required to correct the interference at his own expense.

Industry Canada

This Class A digital apparatus complies with Canadian ICES-003.

•

The 3M™ESD Pro is easy-to-use hand-held indicator and counter of ESD

events that can damage sensitive components and cause tool lockups, erratic

behavior and parametric errors.

Event Counter

A four-digit display counts the number of events equal to or exceeding the

threshold. To reset the counter, press the actuator of the “Set” side switch

inwards. The counter is also reset when the power is turned off.

CDM Mode

In a typical industrial environment there are many sources that produce

signals similar to those of ESD events. Such signals may include relays,

solenoids, stepper motors and alike. In order to separate charge-device type

events from non-related EMI (electromagnetic interference) events, 3M™ESD

Pro employs a patent-pending system that analyzes waveforms of the signals

and rejects the ones that are different from a “classic” shape of an ESD

event. More speciﬁcally, CDM (charged device model) waveform is set as a

template.

In order not to miss ESD events, in case of the questional waveform that has

a possibility of being a legitimate ESD event, the 3M™ESD Pro registers the

event as an ESD event leaving the user to make a determination.

First, try to use the 3M™ESD Pro with CDM mode turned off. This allows

you to assess the complete environment. If you observe extraneous events,

then the turn CDM mode on.

How-To

ESD events are the ultimate indications of whether it is safe to handle

sensitive components in your environment. If you observe strong ESD events,

it is not advisable to continue work until the situation is corrected. Whether

you already have static-dissipative mats, ﬂooring, wrist straps and ionizers is

less relevant—it may still be unsafe to handle sensitive components in

the environment.

You can use the 3M™ESD Pro for different applications:

ESD audit

ESD diagnostics and troubleshooting

ESD tool qualiﬁcation

EMI diagnostics

...and more

The 3M™ESD Pro detects ESD events by the speciﬁc electromagnetic

signature these events produce. As such, the performance of the 3M™ESD Pro

must be looked at in view of wave propagation. Just like with a microphone,

the farther away from the source of the signal you are, the weaker the signal

is. When searching for the sources of ESD events, it is advisable to get as

close as is practical considering necessary safety precautions to the suspected

sources. In a typical tool, such as an IC handler or a pick-and-place SMT

machine, such sources of ESD events may include places of IC pick-up and IC

•

placement on any conductive or even dissipative surface. When working with

the automated equipment, always observe safety precations as recommended

by equipment manufacturer and your company’s practices.

Operation

When the 3M™ESD Pro is turned on, it is ready to detect, count and measure

ESD events.

Bar Graph Display

The 10-LED bar graph shows the relative strength of an ESD event. If an

ESD event does not exceed the set alarm level, LEDs indicating its strength

are green. Whenever the strength of an event exceeds the set threshold, LEDs

turn red.

Event strength is a factor of many variables:

the accumulated static voltage

the capacitance of the charged objects (a larger object holds more charge

than a smaller one)

the physical size of discharging objects

the environment

the distance from ESD event occurrence

Therefore, one should exercise good judgement in comparing the strength of

ESD events captured under different conditions.

Threshold Adjustment

The 3M™ESD Pro can detect ESD events in a wide dynamic range. For most

applications, only the events that exceed certain strengths are of importance.

•

Threshold setting in the 3M™ESD Pro is critical in identifying only ESD

events of the strength equal or above the level of importance to you.

Threshold setting is done by a small rotary/push switch on the right side of

the 3M™ESD Pro.

Checking the Current Threshold

Simply push the actuator of the switch inwards. One red LED will show the

current ESD event threshold. Any event equal to or exceeding this level will

produce a count and a beep, and the LED bar graph will show it in red. An

event below this level will still be shown on the bar graph in green, but no

count or sound will be produced.

Setting the Threshold

To set a new threshold, do not press the switch. Rather, move its actuator

up or down. Once the switch begins to move, one red LED appears on the

bar graph display. As the switch moves up and down, this red LED moves

accordingly and its position indicates the new theshold level.

Saving the Threshold Level

After the new threshold is set, release the switch actuator and then press it

inwards. The new current threshold is now saved. The next time you power up

your 3M™ESD Pro, this level will be automatically set.

Brief Tour of your 3M™ESD Pro

Please refer to the following pages of this User’s Guide for a detailed

explanation of each control, indicator and connection.

Antenna

ESD Event

Strength Bar

Graph

CDM Mode

Indicator

Low-Battery

Indicator

Event Counter

Alarm Threshold

Adjustment /

Reset

CDM Switch

Sound Switch

Power Switch

Battery Compartment (on the back)

Controls and Indicators

Power Switch Turns power on and off

Sound Switch Turns the sound on and off

CDM Turns EMI-rejection mode on and off

Alarm Threshold Adjusts alarm threshold up and down.

Displays current alarm threshold. Resets the Event Counter

Event Counter Counts ESD events above the set threshold

ESD Event Bar Graph Shows relative ESD event strength

CDM Indicator Shows that 3M™ESD Pro is in CDM mode (rejection of EMI Events)

Low Battery Shows that the battery needs to be replaced

Overview

The 3M™ESD Pro is a hand-held indicator of ESD events that shows the

relative strength of each ESD event and counts the number of ESD events

above the set threshold.

ESD events, or electrostatic discharges, can damage sensitive electronic

components. The ultimate goal of ESD protection, such as grounding, wrist

straps, ionizers, static-dissipative mats and alike is to prevent ESD events, or,

at least, decrease their strength and frequency of occurrence. The only way

to verify that your ESD protection works is by knowing whether you have

ESD events in your environment, how strong they are and how many of them

occur. Thus, instruments such as the 3M™ESD Pro serve as your ultimate

measure of effectiveness of your ESD protection.

The 3M™ESD Pro is capable of rejecting non-ESD related EMI

(electromagnetic interference) events. This patent-pending methodology

allows assessment of the ESD environment in places where EMI events

resulting from stepper motors, solenoids, relays and other similar events

abound.

The 3M™ESD Pro is an indicator, not a metrology instrument. It displays

the relative strength of ESD events, not their absolute values. For 3M

instruments that provide you with data on absolute values of ESD events, look

for 3M™EM Aware and 3M™EM Eye on the website listed on the back of

this User’s Guide, call our customer service or contact your local authorized

representative.

General

Power

3M™ESD Pro uses a 9V alkaline battery. Do not use any other type of battery.

If you are not using your 3M™ESD Pro for an extended period of time,

remove the battery from the unit in order to prevent damage caused by battery

leakage. Note: Not all batteries labeled similarly have the same performance.

Often an off-brand alkaline battery has only 50% to 60% of the capacity of

the leading brand-name battery.

Installing the Battery

Slide off the battery door at the back of 3M™ESD Pro and attach the 9V

battery to the battery clips. Observe the polarity of the battery. Re-install the

battery door.

Low-Battery Indicator

When battery voltage gets low (less than ~20% capacity remains), the low

battery indicator on the display appears. At this point it is a good idea to

install a new battery to assure optimal performance.

Turning 3M™ESD Pro On and Off

Move the actuator of the power slide switch to the right. The ESD event

counter should display a number of captured events, usually “0” at this point.

The events counter is reset when the power is turned off.

To turn the power off, move the actuator of power slide switch to the left. The

3M™ESD Pro has no automatic shut-off. Don’t forget to turn it off when not

in active use.

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