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TB-6518

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DESCO EMIT WEST

- 3651 Walnut Avenue, Chino, CA 91710 • (909) 627-8178 • Fax (909) 627-7449 

DESCO EMIT EAST

- 90 Hudson Road, Canton, MA 02021-1407 • (781) 821-8370 • Fax (781) 575-0172 • Web Site: DescoEMIT.com

Limited Warranty

Desco EMIT expressly warrants that for a period of five (5) years from the
date of purchase, Desco EMIT Static Field Meters will be free of defects in
material (parts) and workmanship (labor). Within the warranty period, a credit
for purchase of replacement Desco EMIT products, or, at Desco EMIT's
option, the product will be repaired or replaced free of charge. If product
credit is issued, the amount will be calculated by multiplying the unused
portion of the expected five year life times the original unit purchase price.
Call our Customer Service Department at 909-627-8178 (Chino, CA) or 781-
821-8370 (Canton, MA) for a Return Material Authorization (RMA) and proper
shipping instructions and address. Please include a copy of your original
packing slip, invoice, or other proof of date of purchase. Any unit under
warranty should be shipped prepaid to the Desco EMIT factory. Warranty
replacements will take approximately two weeks.

If your unit is out of warranty, call our Customer Service Department at 909-
627-8178 (Chino, CA) or 01892 665313 (Crowborough, U.K.) for a Return
Material Authorization (RMA) and proper shipping instructions and address.
Desco EMIT 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 Desco EMIT 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.

Figure 6. Installing HBM Test Fixture on 50551 Digital Field
Meter

INSTALLATION AND REMOVAL

The test fixture is stored in the Survey Kit with the Digital
Field Meter installed, ready for use.  Or, you may purchase
the 50553 HBM Test Fixture and 50554 Charging Plate
separately if you don’t have a Survey Kit. If the fixture
needs to be removed to allow use of the Field Meter alone,
follow steps A and B of the diagram.  The ground cord is
located underneath the test fixture in the Survey Kit.  To
obtain the desired result, the ground cord must be installed
onto the Field Meter and attached to a utility or common
ground point.

METHOD OF OPERATION

In order to obtain the desired test results, the meter must be
properly grounded as stated in the Installation and Removal
section.  Once installed on the Field Meter, the Test Fixture
itself is isolated from the meter case and ground and should
remain that way.

Cradle the Test Fixture in the palm of your hand.  Once the
meter is grounded and you are standing on the substrate to
be tested, simply walk around, shuffle your feet or raise a
foot, to determine if the combination of footwear and
substrate produces an electrical charge.  If an electrical
charge is generated and induced onto the human body, the
Test Fixture will transfer that charge onto the Field Meter,
and the amount of the charge will be registered. If it is
necessary to record the amount of charge, you can save 

Figure 7. Using the HBM Test Fixture to measure charges
on the body.

the result by simply pressing the Hold button on the front of
the Field Meter, and pressing the button with an insulated
object.  This test can be done regardless of the type of
footwear or substrate combination.  Other items in your
ESD Control Program may also be tested such as
conductive or dissipative chairs.  Simply sit in the chair on
the desired substrate and move the chair back and forth to
determine if the chair and human body combination
produces and electrical charge.

B.

Insert screw  from

the back of 50554
HBM Test Fixture

A.

Slide 50551Static

Fieldmeter down into
19448 HBM Test Fixture.

NOTE: 50554 Charging
Plate is required to use
the HBM Test Fixture.

© 2006 DESCO INDUSTRIES INC.

Employee Owned

Содержание TB-6518

Страница 1: ...he LED rangefinder to determine this distance The two LEDs appear to form a stationary not moving circle on the target at one inch Note the meter reading A source with a negative polarity shows a minus sign in the display A positive source will display no sign To hold the reading click the HOLD OFF button briefly Figure 1 50551 Digital Static Fieldmeter Description The Desco EMIT 50551 is a high q...

Страница 2: ...he auto zero function and displays the value If you do not complete the auto zero operation the meter is not correctly zeroed For extended monitoring of materials a 9 volt power supply such as Radio Shack 273 1552 may be substituted for the battery Measurement Accuracy The accuracy of measurement is dependent on a stable ground reference and the 1 inch measuring distance as previously noted It is ...

Страница 3: ...ior to shipment to NIST traceable standards Re calibration should be performed annually unless the instrument has been tampered with or repaired or more frequent calibration is specified by company policy or by contract Calibration of the Digital Field Meter should only be performed by the factory Contact our Customer Service Department for details Recommended Reading SEMI E43 95 RECOMMENDED PRACT...

Страница 4: ...he product for their intended use and users assume all risk and liability whatsoever in connection therewith Figure 6 Installing HBM Test Fixture on 50551 Digital Field Meter INSTALLATION AND REMOVAL The test fixture is stored in the Survey Kit with the Digital Field Meter installed ready for use Or you may purchase the 50553 HBM Test Fixture and 50554 Charging Plate separately if you don t have a...

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