3M 747 manual Measurement Section, Measurement Resistance Range 0 to 200.0 MΩ

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5.0Specifications

5.1Measurement Section

The measurement resistance range is automatically selected from the following according to the actual measured value. The resistance range cannot be set manually.

Measurement Resistance Range (0 to 200.0 MΩ)

2-MΩRange	Max. display value: 2.000	MΩ (0.001 - MΩ resolution)
20-MΩRange	Max. display value: 20.00	MΩ (0.01 - MΩ resolution)
200-MΩRange	Max. display value: 200.0	MΩ (0.1 - MΩ resolution)

Testing Thresholds

Shoes Test	Lower Threshold resistance: 100 kΩ or 1 MΩ
	Upper Threshold resistance: 10,	35 or 100 MΩ
Wrist Strap Test	Lower Threshold resistance: 0.65 MΩ
	Upper Threshold resistance: 15,	10 or 35 MΩ

rdg. (displayed or indicated value)

This signifies the value actually being measured, i.e., the value that is currently indicated or displayed by the measuring instrument.

dgt. (resolution)

Signifies the smallest display unit on a digital measuring instrument, i.e., the value displayed when the last digit on the digital display is “1.”

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Contents 3M Shoes and Wrist Strap Tester Table of Contents Inspection IntroductionIntended Use Explanation of Safety Label Signal Words & SymbolsPage Product Outline OverviewLCD Indicators Back Side Side PanelsConnecting the ESD Shoe Testing Plate Preparation Before TestingShoes Power Preparation Installing and Replacing the Batteries Turning Power Off Turning Power On and OffPower Saver Function AC Adapter ConnectionWall Mounting TestingESD Shoe Testing with the 3M Shoes and Wrist Strap Tester ALL setting is described in .1, Open Collector OutputImportant Note Use single-conductor wrist straps only Open Collector Output External Output FunctionTest Result Output Settings Test Result Output TerminalInternal Circuit Open-Collector Output Shoe and Wrist Strap ALL SettingRS-232C Communications SpecificationsPC Connection Cable ConnectionsPC System Requirements Measurement Resistance Range 0 to 200.0 MΩ Measurement SectionBattery Replacement Indicator Maintenance & ServiceLCD can display the following error messages Error MessagesCleaning Testing ConsiderationsOperational Verification Test Testing Wrist Strap Ranges Equipment RequiredTest Set-Up Testing Wrist Low Limit Refer to Wrist Test Table Testing Wrist High Limits Refer to Wrist Test TableWrist Test Table Testing Shoes Low Limits Refer to Shoes Test Table Testing Shoe RangesShoe Test Table Regulatory InformationWeee Statement CULus StatementFCC Electronic Solutions Division Static Control Products

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