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Related Manuals for 3M Wrist Strap and Ground Monitor 773
Summary of Contents for 3M Wrist Strap and Ground Monitor 773
- Page 1 Wrist Strap ™ and Ground Monitor 773 User’s Guide...
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Page 2: Table Of Contents
Table of Contents Safety Information......................... 3 1.0 Description ........................6 Overview ............................. 6 Performance ............................7 2.0 Installation ........................8 Supplied Parts ............................. 8 Wire Attachment ..........................8 AC/DC Adapter Connection........................8 Mounting ............................8 3.0 Specifi cations........................ 10 4.0 Enabling or Disabling Monitoring of Ground Lines ............11 5.0 Setting Impedance Alarm Levels .................. -
Page 3: Safety Information
Retain this guide for future reference. Intended Use This user guide covers the Wrist Strap and Ground Monitor 773. The 773 monitor has two input jacks for monitoring impedance and voltage on a dual conductor wriststrap. It monitors either one or two metal grounds in a workstation. The monitor operates from a universal AC power adapter. - Page 4 To reduce the risks associated with hazardous voltage, which if not avoided could result in electrical shock related injury: • Replace power adapter if damaged with 3M-provided power adapter only • Do not modify or attempt to service the power adapter or use it if damaged...
- Page 5 • Monitor must be checked periodically to verify each monitor circuit is functioning correctly • The 3M Wrist Strap and Ground Monitor 773 requires a suitable ground to function ™ properly. Refer to the proper section of this User Guide for information on connecting to a suitable electrical ground point •...
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Page 6: 1.0 Description
1.0 Description Overview The 3M Wrist Strap and Ground Monitor 773 can be used in work areas or other ™ locations to monitor the ground impedance of metal ground connection in process tools in semiconductor, disk drive, fl at panel, electronic equipment manufacturing and other environments. -
Page 7: Performance
0.5 second to prevent missing a short increased resistance event. If the impedance level remains above the preset alarm level, the red LED and audible sound remains on. Note: A wire must be attached from the 3M Wrist Strap and Ground Monitor 773 ™... -
Page 8: Installation
Section 2.0 Installation Supplied Parts The 3M Wrist Strap and Ground Monitor 773 is supplied with the following items: ™ User’s Guide, AC/DC Adapter Wire Attachment Attach 18 AWG wires to the unit as described below. Strip back the vinyl insulation at each end of the wires to approximately ¹/ ³... -
Page 9: Mounting
Mounting Determine the mounting location of the 3M Wrist Strap and Ground Monitor 773 ™ unit. Attach the unit using one of the following recommended methods: • Screws • 3M Dual Lock Reclosable Fastener ™ ™ Note: The unit can be mounted upside down from the current orientation of the front and back covers. -
Page 10: Specifi Cations
Section 3.0 Specifi cations Wrist Strap and Ground Monitor 773 ™ Parameter Typical Value or Function Ground Impedance Alarm Level 1 to 20 Ohms Wrist Strap Alarm +/-5 Volts on operator Body Voltage 10 Megohms on operator (plus two 1 Megohm... -
Page 11: Enabling Or Disabling Monitoring Of Ground Lines
AC Adapter and then release the “Set” button. Wait then for ~30 seconds. The 3M Wrist Strap and Ground Monitor 773 will beep ™ during this time. After this, it will produce one beep and will automatically disable the lines to which nothing was connected. -
Page 12: Setting Impedance Alarm Levels
Section 5.0 Setting Impedance Alarm Levels By default, the 3M Wrist Strap and Ground Monitor 773 is set at the factory to ™ 10 Ohms alarm level. If you wish to change this alarm level to your specifi cation, follow this procedure to set the impedance alarm level for all channels (G1, G2). - Page 13 Using LEDs on Front of Unit to Set Resistance Alarm Level Resistance Resistance Ohms Ohms...
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Page 14: Verifi Cation Check
Section 6.0 Verifi cation Check Equipment Required: For this test, the 3M Wrist Strap and Ground Monitor ™ 773 should be disconnected from the monitored grounds. Use the 3M Workstation Monitor Checker CTE701. ™ Connect the ground input of the checker to the ground terminal of the 773 monitor. -
Page 15: Functional Operations
If the wrist strap is worn properly, a green LED will come on; otherwise red LED will be on. In order to provide good ground connection, the wrist strap must be worn tightly and the green light on the 3M Wrist Strap and Ground Monitor 773 is ™... - Page 16 Connecting the 3M Wrist Strap and ™ Ground Monitor 773 Unit...
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Page 17: Accessory Items
Section 8.0 Accessory Items 3M Product Number Description 2368 Dual Conductor Fabric Adjustable Wrist Band 2360 Dual Conductor Coiled Ground Cord, 5ft. 2370 Dual Conductor Coiled Ground Cord, 10ft. Workstation Checker CTE701 Workstation Monitor Checker ™ APD12X Dual Conductor Input Jack Board Replacement Use of a dual conductor wrist strap system allows for monitoring a person continuously while they are being grounded. -
Page 18: Customer And Technical Service
(a) 0.1% (by weight) for lead, mercury, hexavalent chromium, polybrominated biphenyls or polybrominated diphenyl ethers; or (b) 0.01% (by weight) for cadmium. Unless otherwise stated by 3M in writing, this information represents 3M’s best knowledge and belief based upon information provided by third... - Page 19 3M’s Regulatory Information Sheet, then 3M’s entire liability and buyer’s exclusive remedy, will be at 3M’s option either: (i) replacement of product with a conforming product, or (ii) refund of the purchase price paid by buyer for each non-conforming product, within a reasonable time after written notifi...
- Page 20 If this product is defective within the warranty period stated above, your exclusive remedy shall be, at 3M’s option, to replace or repair the 3M product or refund the purchase price of the 3M product. Except where prohibited by law, 3M will not be liable for any indirect, special, incidental or consequential loss or damage arising from this 3M product, regardless of the legal theory asserted.
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