Table of Contents
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Table of Contents
Related Manuals for 3M 724
Summary of Contents for 3M 724
- Page 1 Model 724 Work Station Monitor Instructions...
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Page 2: Table Of Contents
3. Installation of Model 724 Monitor without Work Surface Ground Monitoring ...........9 4. Selection of Test Voltage and Resistance Limit ..........12 5. Mounting the 724 Monitor and 3M™ Model 732 Remote ......12 6. Wrist Strap Connection ................13 7. Fault Conditions ..................14 8. -
Page 3: Safety Information
For proper grounding of the operator when using the 3M 724 Work Station Monitor, use of the three-prong AC adapter specified in the user instruction manual or supplied ground wire with ring terminal is required. -
Page 4: Theory Of Operation
Remote Dual Conductor Input Jack Fabric Wrist Strap* Fig. 1 - Model 724 Work Station with dual conductor wrist strap assemblies and remote input jacks. contains a current-limiting resistor, Section 1. through one side of the wrist band, Theory of Operation... - Page 5 The Model 724 monitor allows for the If the resistance of the wrist strap selection of test voltages (9v or 16v) loop is higher than the selected range and resistance limits (10 Megohms or (10 Megohms or 35 Megohms)* on the 35 Megohms).
- Page 6 Monitoring Information (Section 15). discharge from a person (less than 10 volts). The following chart for Voltage on Operator when connected to the Model 724 monitor Condition 9V-10 Megohms 9V-35 Megohms 16V-10 Megohms 16V-35 Megohms No Skin Resistance 0.9V...
- Page 7 This alarm sound is turned on Mat Cord and the ground wire of the or off by selection of DIP switch #2. 724 must be connected to an electrical Switch #1 and #2 are accessible ground (Section 3). This is done to...
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Page 8: Installation Of 3M™ Model 724 Monitor
Section 2. b) Using a small screwdriver move the DIP switch #2 on the Model 724 Installation of 3M ™ monitor to the ON position to Monitor with Work Surface activate the work surface audible Ground Monitoring alarm (Fig. 4). -
Page 9: Installation Of Model 724 Monitor Without Work Surface Ground Monitoring
Surface Ground Monitoring opening and securing with Wire Attachments and Grounding - See screwdriver (Fig. 5A). Attach the Fig. 12 for complete drawing of 724 ring terminal end with a screw (not supplied) to an electrical ground monitor wire connections. - Page 10 Determine how you want to ground jack at the rear of the Model 724 the Model 724 monitor: monitor (Fig. 8). • If you are grounding through the AC Caution adapter, perform Step (3f.) • If you are grounding through the...
- Page 11 Fig. 8 - Inserting two-wire connector into rear of Fig. 6 - Cutting off table mat ground snap. Model 724. Fig. 9 - Inserting 732 plug into rear of Model 724. Fig. 7A - Attaching system grounds. Note work surface and unit are grounded at different locations.
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Page 12: Selection Of Test Voltage And Resistance Limit
Remote a) Mount or position the Model 724 monitor so that the lamps are easily Fig. 11 - Model 724 mounted under shelf or bench. viewed by the operator (Figs. 10 and 11). Mount the Model 724 monitor to the underside of a work bench top... -
Page 13: Wrist Strap Connection
Work Surface work surface wire to ground. ready for use. Section 6. Fig. 12 - Model 724 wire connection diagram for single Wrist Strap Connection work station. a) Attach a 3M Dual Conductor Ground Cord to a 3M Dual Conductor Wrist Band (Fig.13). -
Page 14: Fault Conditions
Section 7. control requirement for resistance to ground when wearing a static Fault Conditions protective wrist strap assembly. These (Refer to Fig. 3) alarms alert the operator when sensitive electronics are possibly Red Wrist Strap Lamp (H) being exposed to static electricity. Accompanied by an Audible Alarm Prior to incorporating the work station monitor into your static... -
Page 15: M™ Model 3057 Standby Jack
(Fig. 15). The OK Model 733 and the 3M ™ Model 2389 green lamp (1 or 2) on the Model 724 (10 ft.) Monitor/Table Mat Interconnect monitor will illuminate upon Cord. Instructions for creating two connection. The low yellow lamp (L) separate work stations are included will slowly flash if the standby jack is... -
Page 16: Verification Procedure For The Model 724 Monitor
• Small blade screwdriver. • Resistance Substitution Box (RSB), Fig. 16 - Inserting Model 733 plug into rear of 1 Ohm to 45 Megohms ±1%. Model 724 ™ Fig. 17 - Model 724 wire connection diagram for two work stations. - Page 17 Attach the 3M ™ 2380 Monitor/Table standard 3.5 mm (miniature) Mat Cord and the 724 ground wire phone plug attached on one end to the RSB using the two wires with and appropriate connectors on the alligator clips. Set the resistance as other end to connect to RSB.
- Page 18 Jack. Audible alarm will be a fast attach the other end to the RSB. Set chirping beep. the resistance as follows and observe the 724 monitor output: Set Resistance Limit 35 Megohms and Test Voltage 9v (Fig. 2). 1.3 Megohms – Yellow low lamp (L) flashing, green (OK) lamp (1)
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Page 19: Specifications
ON (continuous tone), and green Section 13. (OK) lamp (1) OFF. Parts Included o) Repeat step (6n) for input #2 of the 1 ea. Model 724 Work Station Model 732 Dual Conductor Monitor Remote Input Jack. Audible alarm 1 ea. Model 732 Dual Conductor will be fast chirping beep. -
Page 20: Required Accessories And Optional Available Parts
* Includes band & cord Current vs. Constant Current in Section 15. Work Station Monitors. Additional Wrist Strap • 3M Static Digest Issue No.1, 1998 - Monitoring Information Disc Drive Industry - Static Control Considerations. Suggested reading on wrist strap... -
Page 21: Warranty
Limit of Liability - In no event will be replaced at 3M’s option and expense if 3M receives notice during the 3M or Seller be responsible or liable for special, incidental, or consequential warranty period. Defective products losses or damages, whether based in must be returned to 3M with proof of purchase date.
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