background image

8

Section 4.
Installation Under Work
Bench

Fig. 4

The Model 725 can be mounted under
a work bench by securing with two #8
screws (not supplied) through the
mounting hole tabs located on the top
cover.

Note:
Use of the monitor in this way
precludes grounding a work surface
through the snap connector on the
bottom of the monitor. A static control
work surface, if present, would require
grounding separately through an
additional ground cord.

When mounting the Model 725
Monitor under a work bench for non
mobile use, remove the parking clip
(Section 6) from the Model 725
Monitor using a small screwdriver. The
Model 725 Monitor is now ready to
mount. 

Position the monitor so that it is
convenient for the operator to plug
their wrist strap ground cord into the
jack on the front of the monitor. It is

recommended that the front face of the
monitor be flush or slightly recessed
from the front edge of the work bench.
Attach the monitor to the work bench
with the screws. It may be necessary
to pre-drill pilot holes for the screws.

Attach the dual conductor ground clip
or each wire of the monitor’s dual
conductor ground cord to a suitable
ground.  

Caution

If you decide not to use the dual
conductor ground clip that is 
attached to the monitor’s ground 
cord in the way described in this 
user instruction manual, observe the
following precaution: Attach each of
the two wires of the monitor’s ground
cord to separate ground bonding
points. By attaching the wires to the
same ground but at different physical
locations, the monitor can check for
loose or lost connections.

Use of an optional 3M 3057 Stand-By
Jack at the work station extends the
life of the monitor’s input jack. The
user disconnects the wrist strap 
ground cord from the wrist band 
and plugs into the 3057 jack which is
mounted at the work station. 
Plugging into the 3057 jack prevents
the Model 725 from continuously
alarming when disconnected from the
wrist band.

The system is now ready for use.

Summary of Contents for 725

Page 1: ...Power Supply 9 Volt alkaline battery not supplied Test Voltage 9 Vdc maximum Test Current Less than 1 microamp Upper Resistance Limits Wrist Strap 35 Megohms Ground Clip 10 Megohms Accuracy 15 Environ...

Page 2: ...3 Model 725 Wrist Strap Monitor Instructions...

Page 3: ...ork Surface 7 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...

Page 4: ...f Symbols Caution refer to user instruction manual See user instruction manual for explanation of the indicator lamp See user instruction manual for explanation of the audible alarm Safety Information...

Page 5: ...band to the arm of the wearer are considered to be functioning correctly If the measured resistance is over 35 megohms a red lamp flashes along with a chirping audible alarm In addition the Model 725...

Page 6: ...e The Model 725 monitors the battery voltage and alerts the operator when it is necessary to change the battery When the battery voltage falls below 6 volts the red lamp will illuminate with no audibl...

Page 7: ...of the Model 725 Monitor Plugging into the jack activates the monitor and causes it to emit a short beep and the red lamp to momentarily flash If the red lamp flashes with an intermittent audible alar...

Page 8: ...resistor by the Model 725 Monitor Note Although the work surface is grounded by the Model 725 Monitor it is not monitoring the ground to the work surface 3M 8200 Series Work Surfaces use the female 1...

Page 9: ...the front edge of the work bench Attach the monitor to the work bench with the screws It may be necessary to pre drill pilot holes for the screws Attach the dual conductor ground clip or each wire of...

Page 10: ...l 725 Monitor See Section 6 Section 6 Parking Clip Fig 5 A parking clip is supplied with the Model 725 Monitor allowing mobile users to silence the ground clip disconnect alarm Attaching the dual cond...

Page 11: ...snap firmly into place Section 8 Verification Procedure for the Model 725 Monitor The Model 725 Wrist Strap Monitor cannot be recalibrated after the initial factory calibration However the following...

Page 12: ...rt the opposite ends together Set the RSB as follows and observe the lamp and audible alarm 5 0 Megohms Red lamp OFF audible alarm OFF 11 5 Megohms Red lamp ON Continuous audible alarm ON Continuous t...

Page 13: ...rist Band large 2368 Dual Conductor Fabric Wrist Band adjustable 2381 Dual Conductor Metal Wrist Strap small 2382 Dual Conductor Metal Wrist Strap medium 2383 Dual Conductor Metal Wrist Strap large 23...

Page 14: ...on of 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 Consideration...

Page 15: ...nty Exclusions THE FOREGOING EXPRESS WARRANTY IS MADE IN LIEU OF ALL OTHER PRODUCT WARRANTIES EXPRESS AND IMPLIED INCLUDING FITNESS AND MERCHANT ABILITY The express warranty will not apply to defects...

Reviews: