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SV91M Operating & Maintenance Instructions

1

ZZ009143

Revision 11

Security Approved Degausser

OPERATING and MAINTENANCE

MANUAL

SV91M

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Summary of Contents for SV91M

Page 1: ...SV91M Operating Maintenance Instructions 1 ZZ009143 Revision 11 Security Approved Degausser OPERATING and MAINTENANCE MANUAL SV91M ...

Page 2: ...09143 SV91M 115v 60Hz Security Approved Degaussers VS SECURITY PRODUCTS LTD VS AND ASSOCIATES 17 Pegasus Court North Lane 3160 Texas Hill Road Aldershot Placerville Hampshire California GU12 4QP 95667 United Kingdom United States Tel 44 0 1252 333577 Tel 530 626 6924 Fax 44 0 1252 333448 Fax 530 626 6989 Email sales vssecurityproducts com Email ussales vssecurityproducts com www vssecurityproducts...

Page 3: ...IMPORTANT The power on off switch used on this equipment is not an isolating switch It is recommended that this equipment should be operated from a separate switched isolator which should be located close to the unit and within reach of the operator COPYRIGHT This document is the property of VS Security Products Limited and it may not be reproduced copied or exhibited to a third party without the ...

Page 4: ...ON 8 5 1 Cassettes Cartridges 8 5 2 Reels Pancakes 8 Section 6 INDICATORS FEATIRES 9 6 1 Indicator 9 6 2 Overheat protector 9 6 3 Cooling 9 6 4 Protection 9 Section 7 MAINTENANCE SERVICE 10 7 1 Circuit Breaker 10 7 2 Bulb Replacement 10 7 3 Cooling fan 10 7 4 Internal Components 10 Section 8 TABLES 11 13 8 1 Basic Fault Finding Table 11 12 8 2 Current Monitor Test Points 13 Section 9 PARTS LIST 14...

Page 5: ...es and 1 4 1 2 1 2 reels up to 16 diameter Power Requirements factory set ZZ 009 143 Line voltage 115V 5 10 Line frequency 60Hz Current typical 14A Circuit Breaker 15A Erasure time 3 seconds Run time 6 minutes typical Duty cycle 10 to 20 depending on ambient air Temperature Mounting Free standing table top Overall Dimensions Depth 19 inches 48cm Width 16 5 inches 42cm Height 6 inches 15cm Weight A...

Page 6: ...bulk degausser functions like a large electro magnet its erasing field originating as leakage flux from a large gap in the field structure the SV91M structure is basically a U section The field intensity decreases rapidly as the distance from the degausser surface increases For example at a distance of approximately 2 75 inches from the degausser s surface a field strength of only 50 oersteds exis...

Page 7: ...should be close to the installed equipment and fully accessible NOTE Degausser Current Consumption The degaussing coils are powered as part of a tuned resonant circuit This allows quite high circulating currents to be generated within the degaussing coils with minimal current consumption from the mains voltage supply However this technique requires that the waveform of the supply voltage contains ...

Page 8: ...wards the degausser s top surface Place the media on the top surface against the guide at the right or left hand edge Slide the media across the degausser in a slow and deliberate movement taking approximately three seconds to traverse the top face 5 1 Cassettes and Cartridges Cassettes and cartridges must be turned through 90 degrees and a second pass made the media must be turned over and the pr...

Page 9: ...nergy field developed by the SV91M necessitates the generation of a considerable amount of heat The degausser coil is monitored for excessively high temperatures and should this condition occur its operation will be inhibited until the coil has cooled sufficiently 6 3 Cooling A thermostatically controlled cooling fan is provided to extend the continuous operating period to a maximum 6 4 Protection...

Page 10: ...ch indicator body by levering it forwards 7 2 2 Remove the bulb from the rear of the bulb housing using a suitable extraction tool 7 2 3 Replace the bulb noting the following a The bulb will fit in only one position in a locating slot If when fitting this does not occur remove the bulb and rotate it through 180 7 2 4 Refit the bulb lens to the switch indicator body by gently pushing the lens into ...

Page 11: ... State Relay Replacement A thermally conductive compound should be used to ensure adequate heat dissipation from the relay to the metal case 7 4 2 Thermal Switch Replacement Care must be exercised when replacing either of the switches on the degausser coil The switches are fitted using an epoxy resin and it is recommended that the new switch be fitted in a new position on the coil and the old swit...

Page 12: ...entre and L1 and or tuning left hand side capacitors C1 C4 _______________________________________________________________________ Power lamp Fails to illuminate Loss of mains User source supply Tripped Circuit Breaker Rear panel Faulty switch Front panel Faulty neon Front panel _______________________________________________________________________ Degauss lamp Fails to illuminate Extensive use o...

Page 13: ... when powered from a supply with minimal distortion Any increase in current consumption due to a distorted waveform will have minimal effect on the degausser performance however excessive current consumption should be avoided for obvious reasons In the event of unexplained high currents please consult your supplier TABLE 2 8 2 Current Monitor Test Points The following table contains typical curren...

Page 14: ...2 1 Fan 120mm HS 100 101 4 Feet MP 002 505 1 SV91M Top IND1 OI 100 031 1 Neon SW1 OI 100 030 1 Neon RL1 RS 100 010 1 Relay SH 100 150 1 Relay cover SW3 SP 100 002 1 Temperature Sensor SW2 SW 100 016 2 Thermal switch CB1 SW 100 017 1 Circuit Breaker 15A SW1 SW 100 123 1 Red lens SW1 SW 100 125 1 Switch Body SW1 SW 100 126 1 Switch Contacts IND1 SW 100 121 1 Yellow lens IND1 SW 100 124 1 Indicator B...

Page 15: ...SV91M Operating Maintenance Instructions 15 APPENDIX A CIRCUIT DIAGRAM ...

Page 16: ...egasus Court North Lane 3160 Texas Hill Road Aldershot Placerville Hampshire CA 95667 GU12 4QP United States United Kingdom Tel 44 0 1252 333577 Tel 530 626 6924 Fax 44 0 1252 333448 Fax 530 626 6989 E mail sales vssecurityproducts com E mail ussales vssecurityproducts com http www vssecurityproducts com ...

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