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Index

Section

Page

Safety Information............................................................................................ 3

1 Theory of Operation ................................................................................. 6

2 Installation of 3M

™

Workstation Monitor 724

with Work Surface Ground Monitoring .................................................. 10

3 Installation of 3M Workstation Monitor 724 without
Work Surface Ground Monitoring ......................................................... 11

4 Selection of Test Voltage and Resistance Limit ...................................... 14

5 Mounting the Workstation Monitor 724 and

™

Dual Conductor Remote Input Jack 732 ......................... ............. 14

6 Wrist Strap Connection .......................................................................... 15

7 Fault Conditions ..................................................................................... 16

8 3M

™

Standby Jack 3057 ......................................................................... 17

9 3M

™

Dual Conductor Remote Input Jack 733 ........................................ 17

10 Installation of Dual Conductor Remove Input Jack 733 ......................... 18

11 Verification Procedure for the Workstation Monitor 724 ........................ 18

12 Specifications ......................................................................................... 22

13 Parts Included ......................................................................................... 22

14 Required Accessories and Optional Available Parts ................................ 23

Warranty ................................................................................................. 24

Содержание Workstation Monitor 724

Страница 1: ...1 User s Guide 3M Workstation Monitor 724 ...

Страница 2: ...ge and Resistance Limit 14 5 Mounting the Workstation Monitor 724 and 3M Dual Conductor Remote Input Jack 732 14 6 Wrist Strap Connection 15 7 Fault Conditions 16 8 3M Standby Jack 3057 17 9 3M Dual Conductor Remote Input Jack 733 17 10 Installation of Dual Conductor Remove Input Jack 733 18 11 Verification Procedure for the Workstation Monitor 724 18 12 Specifications 22 13 Parts Included 22 14 R...

Страница 3: ...ied in these instructions the protection provided by the equipment may be impaired Use in any other application has not been evaluated by 3M and may lead to an unsafe condition Explanation of Symbols CAUTION Operator s Wrist Strap Assembly Ground Work Surface Ground Earth ground Power input connector polarity center negative Explanation of Signal Word Consequences WARNING Indicates a potentially h...

Страница 4: ... or monitor there are no user serviceable parts Do not use the power supply if damaged Replace power supply if damaged using only 3M supplied parts Do not use the 3M Workstation Monitor 724 or its power supply outdoors in wet humid environments Do not use the Workstation Monitor 724 or its power supply outside of the operating conditions listed in this user guide Always follow instructions for ins...

Страница 5: ...ease the separation between the equipment and receiver Connect the equipment into an outlet on a circuit different from that to which the receiver is connected Consult the dealer or an experienced radio TV technician for help Environmental Conditions Industry Canada standard ICES 003 This Class B digital apparatus complies with Canadian ICES 003 Cet appareil numérique de la classe B est conforme à...

Страница 6: ...t elements The Workstation Monitor 724 employs two selectable test voltages 9 and 16 volts and resistance limits 10 Megohms and 35 Megohms It also monitors the grounding of up to two 3M work surfaces The Workstation Monitor 724 contains a current limiting resistor through one side of the wrist band through the skin of the wearer under the band through the second side of the wrist band through the ...

Страница 7: ...ted on the front of the monitor The wrist strap of the second operator is measured in the same way Operators are identified by the two OK green lamps 1 2 However the same high wrist strap red lamp H and low yellow L lamps illuminate when a fault is detected The green lamp that extinguishes identifies the operator that is experiencing the fault condition If the resistance of the wrist strap loop is...

Страница 8: ...under various resistance conditions Note For more information about wrist strap monitoring see Additional Wrist Strap Monitoring Information Section 15 Voltage on Operator when connected to the Workstation Monitor 724 Condition 9V 10 Megohms 9V 35 Megohms 16V 10 Megohms 16V 35 Megohms No Skin Resistance 0 9V 0 9V 1 6V 1 6V 200K Ohm Skin Resistance 1 0V 1 0V 1 8V 1 8V Likely Case Before Alarm 2 5V ...

Страница 9: ...hed If DIP switch 2 is in the ON position Figure 4 the audible alarm will activate If no ESD work surface is to be monitored the Monitor Table Mat Cord 2380D and the ground wire of the Workstation Monitor 724 must be connected to an electrical ground Section 3 This is done to ensure that the Workstation Monitor 724 is providing a ground connection for the operators Again if the loop resistance exc...

Страница 10: ...und wire of theAC adapter to the ground terminal of the two wire connector by inserting it into opening and securing with screwdriver Figure 5B Continue with step 2h g Attach the tinned Workstation Monitor 724 ground wire to the ground terminal of the two wire connector by inserting the tinned end into opening and securing with screwdriver Figure 5A Attach the ring terminal end with a screw not su...

Страница 11: ...Mat Cord 2380D tinned wire end to the work surface terminal of the two wire connector plug by inserting into opening and securing with screwdriver Figure 5A or 5B Note Disconnect the 3M Monitor Table Mat Cord 2380D to check for visual and audible high work surface alarm condition and reconnect If the high work surface lamp M is on before removing the Monitor Table Mat Cord 2380D check for loose co...

Страница 12: ...pening and securing with screwdriver Figure 5B Continue with Step 3h g Attach the tinned Workstation Monitor 724 ground wire to the ground terminal of the two wire connector by inserting the tinned end into opening and securing with screwdriver Figure 5A Attach the ring terminal end with a screw not supplied to an electrical ground Figure 7B Continue with Step 3h h Plug the two wire connector into...

Страница 13: ...fferent locations Figure 6 Cutting off table mat ground snap Figure 7B Grounding 3M Workstation Monitor 724 Figure 8 Inserting two wire connector into rear of 3M Workstation Monitor 724 Figure 9 Inserting 3M Dual Conductor Remote Input Jack plug into rear of 3M Workstation Monitor 724 ...

Страница 14: ...ing the 3M Workstation Monitor 724 and 3M Dual Conductor Remote Input Jack 732 a Mount or position the Workstation Monitor 724 so that the lamps are easily viewed by the operator Figs 10 and 11 Mount the Workstation Monitor 724 to the underside of a work bench top or shelf through the two holes located at the top rear of the case using the two screws supplied If using the screws is not possible ap...

Страница 15: ...p H should illuminate and the corresponding audible alarm for the input 1 or 2 should sound indicating proper functioning of the monitor c Slip the wrist band on your wrist The alarm should quiet and the wrist strap high red lamp H should slowly extinguish The corresponding OK wrist strap green lamp 1 or 2 should illuminate Figure 13 Connecting wrist snap ground cord to 3M Dual Conductor Remote In...

Страница 16: ... or the ground connections Check the work surface ground cords and the connections for continuity Note the audible alarm may also sound if selected Note The operators may complain 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...

Страница 17: ... grounded if the plate is attached to a grounded metal surface The operator should reconnect the wrist strap ground cord to their wrist band upon returning to the work station SECTION 9 3M Dual Conductor Remote Input Jack 733 The 3M Dual Conductor Remote Input Jack 733 is used to separate the two wrist strap jacks on the Dual Conductor Remote Input Jack 732 that connect to a Workstation Monitor 72...

Страница 18: ...n Monitor 724 The Workstation Monitor 724 cannot be recalibrated after the initial factory calibration However the following steps can be used to determine if the Workstation Monitor 724 is operating within its specifications Equipment Needed Small blade screwdriver Resistance Substitution Box RSB 1 Ohm to 45 Megohms 1 One two conductor cable with standard 3 5 mm miniature phone plug attached on o...

Страница 19: ...with alligator clips Set the resistance as follows and observe Workstation Monitor 724 output 3 1 Megohms Red work surface lamp M OFF 4 3 Megohms Red work surface lamp M ON f Disconnect the cords from the RSB g Connect the ring terminal end of the Workstation Monitor 724 ground wire to the metal snap of the Monitor Table Mat Cord 2380D The red work surface lamp M should now be OFF Attach 3M Workst...

Страница 20: ...ble alarm ON continuous tone and green OK lamp 1 OFF i Repeat step 6h for input 2 of the Dual Conductor Remote Input Jack 732 Audible alarm will be a fast chirping beep Set Resistance Limit 35 Megohms and Test Voltage 9V Figure 2 j Test as in step 6h above However set the resistance as follows and observe the Workstation Monitor 724 output 1 3 Megohms Yellow low lamp L flashing green OK lamp 1 ON ...

Страница 21: ...larm ON continuous tone and green OK lamp 1 OFF m Repeat step 6l for input 2 of the Dual Conductor Remote Input Jack 732 Audible alarm will be fast chirping beep Set Resistance Limit 35 Megohms and Test Voltage 16V Figure 2 n Test as in step 6l above However set the resistance as follows and observe the Workstation Monitor 724 output 1 3 Megohms Yellow low lamp L flashing green OK lamp 1 ON and au...

Страница 22: ...1 375 in 16 5 x 7 9 x 3 5 cm 3M Dual Conductor Remote Input Jack 732 and 733 Dimensions 2 75 x 1 0 x 1 0 in 7 0 x 2 5 x 2 5 cm Power Supply Requirements North America version included EU EK version optional Input 100 200VAC 10 Output 25VDC 50 mA rated load Output Plug Polarization Center Negative Output Plug Dimensions 5 5 mm O D x 2 1 mm I D x 9 5 mm Length Test Voltage 9 VDC 16 VDC Open circuit ...

Страница 23: ...e Mat Replacement Cord No resistor 10 ft 3 0 m 3057 3M Stand By Jack 1 9 x 1 3 x 1 1 in 4 8 x 3 3 x 2 8 cm 732 3M Replacement Remote Input Jack 6 5 x 3 1 x 1 4 in 16 5 x 7 9 x 3 5 cm 733 3M Dual Remote Splitter Kit 6 5 x 3 1 x 1 4 in 16 5 x 7 9 x 3 5 cm 8800 3M Two Layer Rubber Mats Premium Various Sizes 3M Ultra R 2 Two Layer Rubber Mat L2RGR Standard Various Sizes Ultra R 2 3M Ultra R 2 Two Laye...

Страница 24: ...inst harmful interference in a residential installation This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instructions may cause harmful interference to radio communications However there is no guarantee that interference will not occur in a particular installation If this equipment does cause harmful interference to radio or ...

Страница 25: ... in material and manufacture for one year from the time of purchase 3M MAKES NO OTHER WARRANTIES INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE 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 ...

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