Desco 的 94371 规格书

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TB-5543 December 2008 Page 1 of 1
Ground Gard 4.5 & 5 Calibration Tester
Routine Test and Calibration Instructions
Figure 1. SPI 94371 Ground Gard Calibration Tester
Description
The SPI 94371 Ground Gard Calibration Tester can be
used to calibrate the following SPI items:
An adjustment trimpot can be found through a small
access hole located on the remote module. Use a
proper tool to adjust this trim pot. This adjustment
resets the gain in the negative loop of the sensor
oscillator.
I. Connect the Calibration Tester’s alligator clip to the
Ground Gard Monitor’s ground lead wire.
II. Insert the Calibration Tester’s banana plug into the
OPERATOR jack located on the remote module.
III. Set the right-hand switch on the Calibration Tester
to "CALIBRATE.”
IV. Set the left-hand switch on the Calibration Tester to
“FAIL.” Carefully adjust the remote module’s trim
pot in a counter-clockwise direction until the Ground
Gard Monitor indicates a FAIL condition. If properly
calibrated, the monitor should now indicate a FAIL
condition when the Calibration Tester’s left-hand
switch is set to “FAIL” and a PASS condition when
the Tester is set to “PASS.”
Made in America
© 2008 DESCO INDUSTRIES INC.
Employee Owned
Limited Warranty
SPI expressly warrants that for a period of one (1) year from the date of
purchase, SPI Calibratrion Testers 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 909-664-9986 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 SPI
Westek factory. Warranty repairs will take approximately two weeks.
If your unit is out of warranty, call Customer Service at 909-664-9986 for a
Return Material Authorization (RMA) and proper shipping instructions and
address. SPI 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 SPI 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.
Item Description
94390 Ground Gard 4.5
94391 Ground Gard 5
Test Procedure
I. Connect the Calibration Tester’s alligator clip to the
Ground Gard Monitor’s ground lead wire.
II. Connect a male-male banana plug to the ground
jack of the Calibration Tester. Insert the other end of
the banana plug into the OPERATOR jack of the
Ground Gard Monitor’s remote module.
III. Set the right-hand switch of the Calibration Tester to
"CHECK.”
IV. Alternately switch the left hand "FAIL - PASS"
switch between the "FAIL" and "PASS" positions.
The LEDs on the Ground Gard Monitor should
correspond to the Calibration Tester’s settings. If
the LEDs on the monitor do not duplicate the switch
positions, the monitor’s remote modules should be
re-calibrated.
Calibration Procedure
NOTE: Calibration of the Ground Gard remote
modules is only necessary when they fail the test
procedure described above.
TECHNICAL BULLETIN TB-5543
ESD Systems.com • 432 Northboro Road Central • Marlboro, MA 01752 • (508) 485-7390 • Fax (508) 480-0257 • Website: ESDSystems.com