Table of Contents
Intended Use...........................................................................................................................................5
1.0 Theory of Operation.......................................................................................................………6-7
2.0 Attaching Ground & Chassis Cords ..........................................................................................7-9
3.0 Ataching the 3M™ 790 Static Monitor to a Workbench or Equipment Chassis........................10
4.0
Operating Your System ..........................................................................................................11-12
5.0 Connecting an Operator to the 790 Static Monitor ...............................................................12-13
6.0 Verification Procedure............................................................................................................13-15
7.0 Specifications...............................................................................................................................15
8.0 Parts Included ..............................................................................................................................15
9.0 Required Accessories and Optional Available Parts ...................................................................16
10.0 Additional Wrist Strap Monitoring Information .........................................................................17
Read and understand all safety information before operating this equipment.
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Intended Use
The 3M™ 790 Static Monitor is designed to monitor the operation of two wrist strap grounding systems and
the ground connection of a specified equipment chassis. This product has been designed and tested for indoor
use only and with 3M™ 2300VM Series Dual Conductor Wristbands and 2300 Series Dual Conductor Ground
Cords. * The monitor operates from a 120Vac adaptor that is included in the North America version. Outside
North America, obtain an appropriate AC adapter meeting the specifications as stated in Section 7
Specifications under Power Supply Requirements.
The product has not been tested or proven safe for other
uses.
CAUTION
• 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 790 Static
Monitor, use the three-prong AC adapter or the supplied chassis/ground cords specified in the user
instruction manual.
• The 790 Static Monitor does not have the capability of verifying that the ground point is a suitable
ground. Verify that the electrical ground point is suitable prior to use. If you are not sure what a
suitable ground is, contact a licensed electrician before installation.
• When using two 790 Chassis/Ground Cords, attach each of the cords to separate ground bonding
points. By attaching the cords to the same ground but at different physical locations, the monitor can
check for loose or lost connections.
• At the end of product life, dispose of product in accordance with governmental regulations.
Explanation of Symbols
Caution: refer to user instruction manual.
Chassis ground
Electrical ground.
Power input connector polarity (center negative).
See user instruction manual for explanation of the indicator lamps.
*3M Dual Conductor Cords & Wristbands (2300VM Series) are required for use with the 790 Monitor,
ordered separately.
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