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12

3M

TM

 Wrist Strap Monitor  

Model 725 Size

2.5 x 2.6  x 1.1 in.  
(6.4 x 6.6 x 2.8cm)  

Accuracy

+/-15%

Test Voltage

9 VDC Open circuit 

Test Current

Less than 1 microamp

Power Supply Requirements

9 Volt alkaline battery recommended 
(Not supplied)

Environmental  
Operating Conditions

Temperature:

Maximum : 110°F / 43°C 
Minimum : 50°F / 10°C

Humidity:

Maximum relative humidity 75%

SECTION 9

Specifications

SECTION 10

Parts Included

1 ea.   Wrist Strap Monitor Model 725 with 6 ft. dual conductor ground cord/clip and parking clip.

1 ea.   User’s Guide & Verification Procedure

Содержание 725

Страница 1: ...User s Guide 3M Wrist Strap Monitor Model 725 ...

Страница 2: ...7 4 Installation Under Work Bench 8 5 Installation Using 3M Belt Clip Model 723 9 6 Parking Clip 9 7 Battery Replacement 10 8 Verification Procedure for the 3M Wrist Strap Monitor Model 725 10 9 Specifications 12 10 Parts Included 12 11 Required Accessories and Optional Available Parts 13 12 Additional Wrist Strap Monitoring Information 14 13 Warranty 15 ...

Страница 3: ... application not evaluated by 3M may cause improper performance and or an unsafe condition To avoid damage to the 3M Wrist Strap Monitor Model 725 do not use this monitor outside of the operating conditions listed in this user s guide Explanation of Symbols CAUTION Operator s Wrist Strap Assembly Ground Work Surface Ground Earth ground Power input connector polarity center negative Explanation of ...

Страница 4: ...damage to components or assemblies being handled Always properly ground your tools and dissipative surfaces to known good ground before connecting the Wrist Strap Monitor Model 725 for monitoring If unsure of suitable ground contact a licensed electrician before installation Always ensure operator grounding during use of monitor The Wrist Strap Monitor Model 725 does not provide grounding ENVIRONM...

Страница 5: ...esistor and finally back to the monitor If the resistance of the wrist strap loop is less than 35 megohms the wrist strap ground cord wrist band and the interface of the wrist 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 Wrist Strap Monitor Model 725 moni...

Страница 6: ...g reliable resistance measurements of the wrist strap assembly and the ground connection Voltage on Operator when Connected to the 3M Wrist Strap Monitor Model 725 There is a concern about the voltage that is applied to an operator while they are connected to a monitor Some of today s electronic components are extremely sensitive to electrostatic discharge from a person less than 10 volts The foll...

Страница 7: ...omplain that the alarm is sounding too often until they learn to adjust the wrist band to fit securely or apply an approved skin moisturizer on a frequent basis Please remember that the monitor is informing you that the operator is exceeding the established static control requirement for resistance to ground when wearing a static protective wrist strap assembly These alarms alert the operator when...

Страница 8: ...l 725 3M Work Surface 8200 Series use the female 10 mm 3M Female Snap Fastener Model 3050 snap fastener for grounding 3M Work Surfaces 1800 8300 and 8800 Series use the female 10 mm 3M Female Snap Fastener Model 3034 snap fastener for grounding In addition all 3M Portable Field Service Kits 8500 Series include the 10 mm Female Snap Fastener Model 3034 snap fastener Use of an optional 3M Stand By J...

Страница 9: ...rk 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 Use of an optional 3M Stand By Jack 3057 at the work station extends the life of the monitor s input jack The user disconnects the wrist strap ground cord from th...

Страница 10: ...mobility attach the dual conductor ground clip to the parking clip on the Wrist Strap Monitor Model 725 See Section 6 SECTION 6 Parking Clip A parking clip is supplied with the Wrist Strap Monitor Model 725 allowing mobile users to silence the ground clip disconnect alarm Attaching the dual conductor ground clip to the parking clip prevents unnecessary disconnecting connecting of the wrist strap g...

Страница 11: ...cuit board with your fingers while using a pushing twisting motion to fully seat the terminals of the battery into the snap connectors Note Use an alkaline battery for longer life Pass the monitor s ground cord through one of the two exit wire slots in the bottom half of the case Align the rear locking tab on the top cover to the tab slot on the bottom cover while maintaining the ground cord in th...

Страница 12: ...etal object such as a coin c Plug the phone jack test cord into the wrist strap jack on the front of the monitor and attach the other end of the cord to the RSB Set the RSB as follows and observe the lamp and audible alarm 29 8 Megohms Red lamp OFF audible alarm OFF 40 2 Megohms Red lamp ON Flashing audible alarm ON Chirping d Connect the two single conductor wires to the RSB Attach the other ends...

Страница 13: ...y Requirements 9 Volt alkaline battery recommended Not supplied Environmental Operating Conditions Temperature Maximum 110 F 43 C Minimum 50 F 10 C Humidity Maximum relative humidity 75 SECTION 9 Specifications SECTION 10 Parts Included 1 ea Wrist Strap Monitor Model 725 with 6 ft dual conductor ground cord clip and parking clip 1 ea User s Guide Verification Procedure ...

Страница 14: ...ble Parts Model No Description Size 2368 3M Dual Conductor Fabric Wrist Band adjustable 2381 3M Dual Conductor Metal Wrist Strap small 2382 3M Dual Conductor Metal Wrist Strap medium 2383 3M Dual Conductor Metal Wrist Strap large 2384 3M Dual Conductor Metal Wrist Band small 2385 3M Dual Conductor Metal Wrist Band medium 2386 3M Dual Conductor Metal Wrist Band large 2360 3M Dual Conductor Coil Cor...

Страница 15: ... Discharge Sensitive ESDS Devices EN100015 1 Protection 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 Considerations Note The 3M references are available by calling 3M Electronic Solutions Division Customer Service Department at 1 866 722 3736 ...

Страница 16: ...which are not contained in 3M s current publications or any contrary statements contained on your purchase order shall have no force or effect unless expressly agreed upon in writing by an authorized officer of 3M Warranty Limited Remedy Limited Liability This product will be free from defects in material and manufacture for a period of one year from time of purchase 3M MAKES NO OTHER WARRANTIES I...

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