3M 747 manual Testing Wrist Low Limit Refer to Wrist Test Table

Page 26

Testing Wrist Low Limit – Refer to Wrist Test Table

1.Switch on the 3M™ Shoes and Wrist Strap Tester 747.

2.Select 5 MΩ position on the “Wrist High” switch.

3.Select Wrist position on the “Signal Out” switch.

4.Set reference resistor to 630 KΩ.

5.Press down on the “Touch Panel” and observe LED indicators and value displayed on LCD comparing to Wrist Test Table below.

6.Set reference resistor to 670 KΩ.

7.Press down on the “Touch Panel” and observe LED indicators and value displayed on LCD comparing to Wrist Test Table below.

Testing Wrist High Limits – Refer to Wrist Test Table

8.Repeat test sequence using specified resistors as indicated in Wrist Test Table below for “Wrist High” 5 MΩ, 10 MΩ, and 35 MΩ positions.

Wrist Test Table

Reference

Resistor

Low Limit*

≤630 KΩΩ

≥670 KΩ

High Limit

≤4.8 MΩ

≥5.2 MΩΩ

High Limit

≤9.7 MΩ

≥10.3 MΩ

High Limit

33.9MΩ ≥36.1 MΩ

Wrist High

Range Switch Setting

5 MΩ

5 MΩ

10 MΩ

35 MΩ

Wrist Strap

Check LED Indicator

Red

Green

Green

Red

Green

Red

Green

Red

Test Result

LED Indicator

Low

OK

OK

High

OK

High

OK

High

*Low limit value (650 KΩ) for wrist straps is set internally and cannot be adjusted.

25

Image 26

Contents 3M Shoes and Wrist Strap Tester Table of Contents Introduction InspectionExplanation of Safety Label Signal Words & Symbols Intended UsePage Overview Product OutlineLCD Indicators Side Panels Back SidePreparation Before Testing Connecting the ESD Shoe Testing PlateShoes Power Preparation Installing and Replacing the Batteries Power Saver Function Turning Power On and OffTurning Power Off AC Adapter ConnectionTesting Wall MountingALL setting is described in .1, Open Collector Output ESD Shoe Testing with the 3M Shoes and Wrist Strap TesterImportant Note Use single-conductor wrist straps only External Output Function Open Collector OutputInternal Circuit Test Result Output SettingsTest Result Output Terminal Shoe and Wrist Strap ALL Setting Open-Collector OutputSpecifications RS-232C CommunicationsPC System Requirements PC ConnectionCable Connections Measurement Section Measurement Resistance Range 0 to 200.0 MΩMaintenance & Service Battery Replacement IndicatorError Messages LCD can display the following error messagesOperational Verification Test CleaningTesting Considerations Test Set-Up Testing Wrist Strap RangesEquipment Required Wrist Test Table Testing Wrist Low Limit Refer to Wrist Test TableTesting Wrist High Limits Refer to Wrist Test Table Testing Shoe Ranges Testing Shoes Low Limits Refer to Shoes Test TableWeee Statement Regulatory InformationShoe Test Table CULus StatementFCC Electronic Solutions Division Static Control Products

Related manuals

Manual 40 pages 58.99 Kb