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TB-5545 Page 4 of 4      

 

 

 

 

 

 

 

 

 

                  Revision May 2009

 

 

 

 

 

 

 

 

 

 

 

                                               © 2009 DESCO INDUSTRIES INC.

 

 

 

 

 

 

 

 

 

 

 

 

 

                       Employee Owned

ESD Systems.com • 432 Northboro Road Central • Marlboro, MA 01752 • (508) 485-7390 • Fax (508) 480-0257 • Website: 

ESDSystems.com

Figure 4. Using the Multi-Mount Continuous Monitor

Note:

 Work surface must have a conductive layer such 

as Dual Layer Rubber or Dissipative 3-Layer Vinyl or 
Micastat® Dissipative Laminate with conductive buried 
layers. Desco Continuous Monitors are not recommend-
ed for use with homogeneous matting.

Maintenance and Calibration

The Ground Gard 3 Plus is solid state and designed to 
be maintenance free. The 

94338

/

94339

 is calibrated 

to NIST traceable standards. There are no user ad-
justments neccesary. Because of the wave distortion 
sensing nature of the test circuit, special equipment is 
required for calibration. We recommend that calibra-
tion be performed using the SPI 

50512

 Continuous 

Monitor Calibration Unit. The Calibration Unit is a most 
important product which allows the customer to perform 
NIST traceable calibration on continuous monitors. The 

50512

 is designed to be used on the shop fl oor at the 

workstation, virtually eliminating downtime, verifying that 
the continuous monitor is operating within tolerances.  
Per ANSI/ESD S20.20 Paragraph 6.2.2.2 Personnel 
Grounding Guidance, “Personnel should check constant 
monitoring devices (when used) to ensure that they 
are functional and operating before ESDS products are 
handled. In addition, constant monitoring devices should 
be functionally checked periodically to ensure that they 
are operating as designed.”

Limited Warranty

ESD Systems.com expressly warrants that for a period of one (1)
year from the date of purchase, SPI Continuous Monitors will be
free of defects in material (parts) and workmanship (labor). Within
the warranty period, the product will be tested, repaired, or
replaced at our option, free of charge. Call our Customer Service
Department at 508-485-7390 for a Return Material Authorization
(RMA) and proper shipping instructions and address. Include a
copy of your original packing slip, invoice, or other proof of
purchase date. Any unit under warranty should be shipped
prepaid to the ESD Systems.com factory. Warranty repairs will
take approximately two weeks.

If your unit is out of warranty, call Customer Service at 508-485-
7390 for a Return Material Authorization (RMA) and proper
shipping instructions and address. ESD Systems.com will quote
repair charges necessary to bring your unit up to factory
standards.

Warranty Exclusions

THE FOREGOING EXPRESS WARRANTY IS MADE IN LIEU
OF ALL OTHER PRODUCT WARRANTIES, EXPRESSED AND
IMPLIED, INCLUDING MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE WHICH ARE SPECIFICALLY
DISCLAIMED. The express warranty will not apply to defects or
damage due to accidents, neglect, misuse, alterations, operator
error, or failure to properly maintain, clean or repair products.

Limit of Liability

In no event will ESD Systems.com or any seller be responsible or
liable for any injury, loss or damage, direct or consequential,
arising out of the use of or the inability to use the product. Before
using, users shall determine the suitability of the product for their
intended use, and users assume all risk and liability whatsoever in 
connection therewith.

Summary of Contents for SPI Ground Gard 3 Plus

Page 1: ...stomers are eliminating periodic testing 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 costs and rejected product Periodic testing detects failures after ESD susceptible products have been ma...

Page 2: ... nanoseconds and it takes only about 25 volts applied for 100 nanoseconds to blow most memories or microprocessors The dual wire system does not reli ably meet all industry specifications as the cords do not meet the ANSI ESD S1 1 section 5 4 1 to 5 pound breakaway force requirement for operator safety By using the reliable wave distortion technology to deter mine if the circuit is complete there ...

Page 3: ... LED should illuminate The monitor takes 6 seconds to acti vate its alarm circuitry when it is first plugged in 2 Remove the charges from your body by making con tact with a properly grounded ESD worksurface Snap the cord to the wristband and fit it snugly onto your wrist This should silence the audible alarm and cause the OPERATOR GROUND LED to switch from red to green If this does not happen exa...

Page 4: ...ure that they are operating as designed Limited Warranty ESD Systems com expressly warrants that for a period of one 1 year from the date of purchase SPI Continuous Monitors will be free of defects in material parts and workmanship labor Within the warranty period the product will be tested repaired or replaced at our option free of charge Call our Customer Service Department at 508 485 7390 for a...

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