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3M™ 725 Workstation Monitor Properties
Dimensions
Power Supply
Test Voltage
Test Current
Upper Resistance Limits
Accuracy
Environmental Operating Conditions Temperature:
Humidity:
Accessories
Typical Properties
2.5 in. x 2.6 in. x 1.1 in.
(6.4 cm x 6.6 cm x 2.8 cm)
9 Volt alkaline battery (not supplied)
9 Vdc maximum
Less than 1 microamp
Wrist Strap: 35 Megohms
Ground Clip: 10 Megohms
+ 15%
o
o
Max. 110
F (43
C)
o
o
Min. 50
F (10
C)
Max. 75% R.H.
723 Belt Clip
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Table of Contents
Related Manuals for 3M 725
Summary of Contents for 3M 725
- Page 1 3M™ 725 Workstation Monitor Properties Typical Properties Dimensions 2.5 in. x 2.6 in. x 1.1 in. (6.4 cm x 6.6 cm x 2.8 cm) Power Supply 9 Volt alkaline battery (not supplied) Test Voltage 9 Vdc maximum Test Current Less than 1 microamp...
- Page 2 Model 725 Wrist Strap Monitor Instructions...
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Page 3: Table Of Contents
4. Installation Under Work Bench.................8 5. Installation Using 723 Belt Clip ...............9 6. Parking Clip ......................9 7. Battery Replacement..................9 8. Verification Procedure for the Model 725 Monitor.........10 9. Specifications....................11 10. Parts Included....................11 11. Required Accessories and Optional Available Parts ........12 12. -
Page 4: Safety Information
• Incorrect grounding of an operator may cause electrostatic discharge (ESD) damage to components or assemblies being handled. For proper grounding of the operator when using the 3M 725 Wrist Strap Monitor, connecting to an electrical ground with the supplied ground wire and metal ground clip is required. -
Page 5: Theory Of Operation
Wrist Strap Metal Wrist Strap* Fabric Wrist Strap* Monitor - Model 725 Wrist Strap Monitor with dual conductor wrist strap assemblies Fig. 1 If the resistance of the wrist strap loop Section 1. is less than 35 megohms**, the wrist... - Page 6 Model 725 Monitor operation under normal conditions. illustrates the level of voltage that will appear on the operator under various resistance conditions. Voltage on Operator When Connected to the Model 725 Monitor Condition Observed Voltage No Skin Resistance 0.8V 200K Ohm Skin Resistance 0.9V...
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Page 7: Operating Your System
Fig. 2 Operators may complain that the alarm is sounding too often until they To operate the 3M™ Model 725 Wrist learn to adjust the wrist band to fit Strap Monitoring system, attach the securely or apply an approved skin monitor’s (6 ft.) ground cord with... -
Page 8: Installation When Attaching To A Static Control Work Surface
Fig. 3 Use of an optional 3M™ 3057 Stand- The Model 725 Monitor can be used to By Jack at the work station extends the ground a work surface while providing life of the monitor’s input jack. The... -
Page 9: Installation Under Work Bench
Fig. 4 If you decide not to use the dual conductor ground clip that is The Model 725 can be mounted under attached to the monitor’s ground a work bench by securing with two #8 cord in the way described in this... -
Page 10: Installation Using 723 Belt Clip
Model 725 bottom cover. Slide the clip over your Monitor. If the Model 725 is to be belt in a convenient place, so that the mounted under a work bench for... -
Page 11: Verification Procedure For The Model 725 Monitor
Remove the top cover of the Model Equipment Needed: 725 case by squeezing the two tabs (grooved area located on the bottom • Resistance Substitution Box (RSB), cover) inward while lifting the top 1 Ohm to 45 Megohms ± 1%. -
Page 12: Specifications
Parts Included together. Set the RSB as follows and observe the • 1 ea. Model 725 Wrist Strap Monitor lamp and audible alarm: with 6 ft. dual conductor ground cord/clip and parking clip. 5.0 Megohms - Red lamp OFF, audible alarm OFF •... -
Page 13: Required Accessories And Optional Available Parts
Section 11. Required Accessories and Optional Available Parts Model No. Description Size 2361 Dual Conductor Fabric Wrist Strap* small 2362 Dual Conductor Fabric Wrist Strap* medium 2363 Dual Conductor Fabric Wrist Strap* large 2364 Dual Conductor Fabric Wrist Band small 2365 Dual Conductor Fabric Wrist Band medium... -
Page 14: Additional Wrist Strap Monitoring Information
Electrostatic Sensitive Devices. • 3M Tech. Response #123 - Pulsed Current vs. Constant Current in Work Station Monitors. • 3M Static Digest Issue No.1, 1998 - Disc Drive Industry - Static Control Considerations. Note: The 3M references are available by calling 3M Electronic Handling &... -
Page 15: Warranty
3M static misuse, alterations, operator error, control products will be free of or failure to properly maintain, clean, defects in materials (parts) and or repair products.