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19784;中文规格书,Datasheet资料

19784;中文规格书,Datasheet资料
19784;中文规格书,Datasheet资料

Analog Surface Resistance Test Kit

Description

The Desco Analog Surface Resistance Test Kit is

a portable battery-powered instrument designed to measure resistance point-to-point (RTT) and surface to ground (RTG). The meter is equipped with an automatic test voltage selector. The test voltage will switch from 10V to 100V should the measured resistance exceed

10E5 ohms.

ESD protected area products should be tested:

A. Prior to installation to qualify for listing in user’s ESD

control plan. Approved ESD materials (see product qualification table at ANSI/ESD S20.20-2007 Table 3 EPA ESD control items)

B. During initial installation

C. For periodic checks of installed products as part of

ANSI/ESD S20.20-2007 Compliance Verification

testing per ESD https://www.sodocs.net/doc/1913259937.html,pliance Verification Plan

“A Compliance Verification Plan shall be established

to ensure the Organization’s fulfillment of the technical requirements of the ESD Control Program Plan. Process monitoring (measurements) shall be conducted in accordance with a Compliance Verification Plan that

Figure 1. Desco 19784 Analog Surface Resistance Test Kit

A. Analog Display: Displays surface resistance measurements from 10E3 - 10E13 ohms.

B. Resistance Property LEDs: Color-coded LEDs that provide quick-check resistance indicators.

C. Test Button: Hold this button down to operate the Analog Surface Resistance meter.

D. Low Battery LED: Illuminates when the battery power drops below 5.5V.

E. Test Voltage Button: Test voltage will automatically switch from 10V to 100V when set to AUTO. Test voltage will stay at 10V HOLD when set to 10V.

Operation

Compliance Verification Test Procedure Guideline The ESD Association lists test procedures and

troubleshooting tips in Compliance Verification ESD NOTE: The test kit can be used to measure RTG and RTT of shelves, garments, floor and cart worksurfaces using test procedures similar to worksurfaces and foot grounders.

MEASURE WORKSURFACE RESISTANCE TO GROUND (RTG)

Do not clean the surface.

Remove all ESD sensitive items from the surface

and items that might interfere with the test.Connect one lead banana plug to ground.

Figure 2. Analog Surface Resistance Meter features and components

Figure 3. Using the test leads and one 5 pound electrode to measure RTG

MEASURE WORKSURFACE RESISTANCE POINT-TO-POINT ON THE SURFACE (RTT)1. Do not clean the surface.

2. Remove all ESD sensitive items from the surface

and items that might interfere with the test.

3. Use two 5 pound electrodes and place them 10"

apart on the most frequently used area of the

surface (2" from any edge, 3" from any groundable point).

4. If the most used area of the surface is not obvious,

use two points near the center of the surface.5. Set the Test Voltage Button to AUTO. Press and

hold the TEST button until the measurement is displayed (see Figure 4).

RECOMMENDED FREQUENCY OF PERIODIC COMPLIANCE VERIFICATION OF INSTALLED PRODUCTS

The ESD Association lists test procedures and

troubleshooting tips in Compliance Verification ESD TR53.NOTE: “The frequency of periodic testing is normally

specified in corporate operating procedures. …The frequency of testing is driven by the amount of risk exposure that can occur between tests. For example, what is the quantity of product handled between test periods?” (See ESD Handbook ESD TR20.20)

A GUIDE FOR PERIODIC TESTING

? Worksurface, Carts, Shelves - at least quarterly (see ESD TR20.20 section 5.3.1.13 Periodic Tests)

? Footwear - “Incoming inspection on a lot sampling basis should be performed for all static control footwear.” (see ESD TR20.20 section 5.3.3.4 Testing)

? Floor - “In some cases, a simple electrical resistance test with a megohmmeter may suffice. In others, a static charge generation test may be required. The frequency of testing is also a consideration. Some materials, such as floor finishes, may require more frequent testing because Figure 4. Using the test leads and two 5 pound electrodes to measure RTT of worksurfaces (place electrodes 3 feet apart for flooring)

10"

Limited Warranty

Desco expressly warrants that for a period of one (1) year from the date of purchase Analog Surface Resistance Meters will be free of defects in material (parts) and workmanship (labor). Within the warranty period, a credit for purchase of replacement Analog Surface Resistance Meters, or, at Desco’s option, the Analog Surface Resistance Meter 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 one 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 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 781-821-8370 (Canton, MA) for a Return Material Authorization (RMA) and proper shipping instructions and address. Desco 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 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.

分销商库存信息: DESCO

19784

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