3M 747 manual Overview, Product Outline

1.0Overview

1.1Product Outline

WARNING

To reduce the risks associated with an explosion hazard, which, if not avoided, could result in death or serious injury:

•Do not use in an explosive environment. 3M™ Shoes and Wrist Strap Tester 747 is not designed to be intrinsically safe.

To reduce the risks associated with a medical device malfunction, which, if not avoided, could result in death or serious injury:

• Persons with heart pacemaker devices should never use this Shoes and Wrist Strap Tester 747.

The 3M™ Shoes and Wrist Strap Tester 747 features:

(1)Evaluation of Electrostate Protection Provided by ESD Shoes and Wrist Straps A single device measures the electrical resistance of a body while wearing ESD shoes and wrist straps.

(2)Quick Measurements

Displays measures value and test results, and makes the results available for output within one second after starting measurement.

(3)Power Saver Function

Conservers power by automatically turning off (or entering stand-by state during AC operation) ten second after completing a measurement.

(4)Test Result Display and Output

Displays OK, HIGH, or LOW test results on panel LEDs. Testing threshold resistance values are set by simple switch selections. Results are also available at an open-collector output terminal. Refer to Section 4.1, “Open Collector Output.”

(5)RS-232C Interface

Test results are available to an external PC through a serial (RS-232C) interface. Refer to section 4.2, “RS-232C Communications.”

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