TB-9034
Page 1 of 3
© 2016 DESCO INDUSTRIES, INC.
Employee Owned
SCS
- 926 JR Industrial Drive, Sanford, NC 27332 • (919) 718-0000 • Website:
StaticControl.com
ESD Pro ESD Event Indicator
Installation, Operation and Maintenance
July 2016
USER GUIDE TB-9034
Figure 1.
CTM082
ESD Pro ESD Event Indicator.
Made in the
United States of America
Description
The CTM082 ESD Pro ESD Event Indicator is an easy-to-use
hand-held device that is designed to detect and count 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 or
similar devices. In order to separate ESD events from
non-related EMI (electromagnetic interference) events, the
ESD Pro ESD Event Indicator employs a filter that separates
waveforms of the signals and rejects the ones that are
different from a “classic” shape of an ESD event.
First, try to use the ESD Pro ESD Event Indicator with
CDM filter switch turned off. This allows you to assess the
complete environment. If you observe extraneous events,
then the turn CDM filter switch on.
The ESD Pro ESD Event Indicator detects most ESD
events by the specific electromagnetic signature these
events produce. Therefore, the performance of the ESD
Pro ESD Event Indicator 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
will be. 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 precautions
as recommended by equipment manufacturer and your
company’s practices.
Operation
When the ESD Pro ESD Event Indicator is turned on, it is
ready to detect, count and measure most ESD events.
Bar Graph Display
The 10-LED bar graph shows the relative strength of most
ESD events. 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 ESD Pro ESD Event Indicator 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 ESD Pro ESD Event Indicator 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 ESD Pro ESD Event Indicator.
