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User’s Guide

3M

™

Charge Analyzer 711

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Summary of Contents for Charge Analyzer 711

Page 1: ...User s Guide 3M Charge Analyzer 711 ...

Page 2: ... Operation 9 5 0 Voltmeter Operation 11 6 0 Static Decay Time Balance Operation 15 7 0 3M Remote Field Sensor Probe 711RS Operation 20 8 0 Data Recording and Analog Outputs 23 9 0 Verification Procedure 23 10 0 Maintenance Calibration Repair of 3M Charge Analyzer 711 and 3M Remote Field Sensor Probe 711RS 25 Regulatory Information 26 Warranty 27 ...

Page 3: ...ry and or property damage WARNING Indicates a potentially hazardous situation which if not avoided could result in death or serious injury and or property damage CAUTION Indicates a potentially hazardous situation which if not avoided may resultin minor or moderate injury and or property damage CAUTION Indicates a potentially hazardous situation which if not avoided may result in property damage E...

Page 4: ...ttery pack and circuitry that contains lead in the solder At the end of service life dispose of the Charge Analyzer 711 in accordance with federal state and local requirements CAUTION To reduce the risks associated with property damage due to improper repair or modification Do not attempt to modify or repair no user serviceable parts inside contact 3M Service for repair To reduce the risks associa...

Page 5: ...able batteries the LCD display will not be back illuminated to extend battery life This power saving feature will initiate within 60 seconds after the last measurement or button depression Also during battery operation the continuous LED bar indication changes to a single momentary action In case of a low battery power condition the Charge Analyzer 711 automatically switches off first displaying L...

Page 6: ...robe are 1 2 5 10 and 20 centimeters The built in microprocessor automatically converts the measured field strength via the chosen distance into a charge of an equivalent potential in volts The display automatically switches from volts to kilovolts The following operating functions will be automatically activated when the appropriate electrode or sensor is connected to the base unit The Charge Ana...

Page 7: ...mA E Sensor red cover F Measuring lead 1 m G RS 232 interface cable H 50 mm 2 inches high conductive container with insulating handle I Insulated bulldog clip J Metal spacers 3 with thread 76 mm 3 in length K Transport case L 3M Field Sensor Probe 711RS for measuring electrostatic fields with 2 meter cable red cover M Not Shown Software for Data Acquisition User s Guide not shown Certificate of Co...

Page 8: ...COM RS232 3M Remote Field Sensor Probe 711RS 34 mm diameter 190 gms 6 7 oz Displays Two 11 segment positive negative LED bar charge indicators 16 digit alphanumeric dual row LCD Settings CPM Operating Function Starting voltage 600V 1200V in 1V steps Stop voltage 1V 500V in 1V steps in decimal mode Static Decay Time 0 1 seconds 99 9 seconds Offset voltage Time 0 seconds Indefinite time CPM in float...

Page 9: ...attaching the ground wire with alligator clip on the rear panel of the unit to an earth electrical ground 2 Remove the plate electrode b from the Charge Analyzer 711 if attached Note If the unit is ON at this time the display will briefly indicate CHANGE MODE OF OPERATION then FIELDMETER IS ENABLED 3 Press the on off button to activate the 3M Charge Analyzer 711 To reduce the risks associated with...

Page 10: ...es With the Charge Analyzer 711 in the Fieldmeter operating mode pull the tape off the roll and hold it above the sensor The digital display reads the field strength in kV m To convert readings of kV m into volts use the following formulas R 100 x D cm or R 39 37 x D in where R Reading indicated on the display and D Distance between tape and sensor electrode measured in centimeters or inches Examp...

Page 11: ...e Voltmeter measurement mode 1 Remove the plate electrode and red sensor cover from the Charge Analyzer 711 if attached 2 Mount the gold cup electrode a to the top of the Charge Analyzer 711 and secure with the attached long knurled screws To reduce the risks associated with hazardous voltage Connect the attached ground wire on rear panel to an electrical ground before operating the 3M Charge Anal...

Page 12: ...o switch off the ChargeAnalyzer 711 to get back into theVoltmeter mode 9 Select YES by pressing the A button GROUND CUP READY B will appear on the display for verification that the cup electrode is indeed grounded 10 Select the B button to activate the automatic zeroing feature in the Voltmeter mode Display will indicate READ ALL OFFSET UPDATING zeroing all ranges This completes the zeroing proced...

Page 13: ...ound from the carrier roll Demonstration 3 Performance of ESD Control Flooring 1 Stand on a non static control flooring e g mat tile epoxy etc 2 Hold the cylinder electrode in one hand and perform normal body movements e g sitting down standing up walking back and forth etc experienced in the work environment Observe voltage variations on the Charge Analyzer 711 3 Now stand on a static control flo...

Page 14: ...tage reduction and removal Note Properly performing conductive containers must be able to quickly drain a charge from their surface when ESD control surface Demonstration 5 Discharge Performance of Static Control Packaging Material 1 Place a packaging material on top of a grounded static control worksurface 2 Charge up the conductive container as described above in Demonstration 4 and contact the ...

Page 15: ...e ground wire with alligator clip on the rear panel of the unit to an earth electrical ground 2 Remove the plate electrode b from the Charge Analyzer 711 3 Press the on off button to activate the Charge Analyzer 711 The display will briefly indicate CHANGE MODE OF OPERATION then Fieldmeter IS ENABLED To reduce the risks associated with hazardous voltage Connect the attached ground wire on rear pan...

Page 16: ...o the next digit and adjust the value 0 9 with the A button 5 Continue adjusting the value of the remaining digits to the desired level If you make a mistake continue to press the A B buttons consecutively to obtain the desired value 6 When the desired voltage value is obtained continue to press the B button until the display reads A YES NO B 7 Press the A YES button to verify and store the start ...

Page 17: ...nds set offset time to zero seconds 0 s This puts the Charge Analyzer CPM in a floating mode for an indefinite time period The unit will not have an active timer in this mode Elapsed time must be recorded by the operator using a stop watch or other time recording device Connection to the analog output using a chart recorder e g allows for monitoring of the offset voltage during long time periods P...

Page 18: ... produce a balanced stream of positive and negative ions The Charge Analyzer 711 can be used to accurately measure both of these parameters Note For more detailed information on measuring the performance of ionizers refer to the ESD standard ANSI EOS ESD S3 1 for Protection of Electrostatic Discharge Susceptible Items Ionization 1 Press the B START button to charge the plate and begin the measurem...

Page 19: ... will display the SAVE VALUES menu Selecting A YES button will allow saving of the static decay time measurement test data into a file location numbered 01 99 Press the B OK button to store the data in the displayed file number location To store data in a previously used file location number press the A Change button File locations can be changed in steps of ten using the A button or in steps of o...

Page 20: ...ed information on measuring the performance of ionizers refer to the ESD standard ANSI EOS ESD S3 1 for Protection of Electrostatic Discharge Susceptible Items Ionization 7 0 3M Remote Field Sensor Probe 711RS Operation Measurement Ranges Distance Voltage Resolution 1 CM 0 to 10kv 1V 2 5 CM 0 to 20kv 2V 5 CM 0 to 50kv 10V 10 CM 0 to 100kv 10V 20 CM 0 to 200kv 20V Display automatically converts fro...

Page 21: ...Charge Analyzer 711 to an internal measurement mode 6 When ON is selected the display will indicate EXT EFM D CM A CHANGE OK B Select the desired measurement distance by pressing the A button CHANGE momentarily until desired distance is displayed Note This value represents the distance in centimeters between a charged surface and the sensor head 7 Press the B button OK to select The display will b...

Page 22: ...ated and indicated as volts in the displayed U V Example 1 If the distance between the object and sensor equals 2 5 cm and the U value indicates 500 volts then the strength of the electric field is in this case 500V inch Since 1 inch 2 5 cm approximately To change the measurement into V m multiply the indicated U V value displayed by the appropriate factor to obtain 100 cm 1 m length Example 2 If ...

Page 23: ...ts Internal resistance Rin greater than 1 000 ohms Connect recorder to the red and black banana jacks at the rear of the Charge Analyzer 711 using banana plug style wires Connect the output socket by means of the enclosed interface cable to the RS 232 Bus of the PC Activate the enclosed software in the disk drive by using the command a for example Then type 711 to start the software in the appropr...

Page 24: ... DC high voltage power supply to each full range 25 VDC 100VDC 500VDC 1 000VDC and 5 000VDC Verify that the display indicates within 2 5 of full range See verification check list form on next page Note Also verify during Step 5 that the analog output is within tolerance Input to output ratio for each voltage range is as follows 3M Charge Analyzer 711 Voltage Range Setting Ratio Input to Analog Out...

Page 25: ...Do not attempt to modify or repair no user serviceable parts inside contact 3M Service for repair WARNING 10 0 Maintenance Calibration Repair of 3M Charge Analyzer 711 and 3M Remote Field Sensor Probe 711RS Maintenance If the charge plate does not retain the applied voltage it may be due to high level of room humidity or contamination on one or more of the four spacers Spacers should be cleaned wi...

Page 26: ...l interference when the equipment is operated in a commercial environment This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instruction manual may cause harmful interference to radio communications Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required ...

Page 27: ...ot 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 one year from the time of purchase 3M MAKES NO OTHER WARRANTIES INCLUDING BUT NOT LI...

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