Magnetic Instrumentation 942B Instruction Manual Download Page 1 | Manualshive

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Created -2013

8431 Castlewood Drive, Indianapolis, IN 46250 USA

(317) 842-7500

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Fax (317) 849-7600 .

E-Mail: [email protected]

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www.maginst.com

INSTRUCTION MANUAL

MODEL 942B

MAGNETIZER

Starting with Serial Number 41807

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Summary of Contents for 942B

Page 1: ...ted 2013 8431 Castlewood Drive Indianapolis IN 46250 USA 317 842 7500 Fax 317 849 7600 E Mail maginst maginst com www maginst com INSTRUCTION MANUAL MODEL 942B MAGNETIZER Starting with Serial Number 4...

Page 2: ......

Page 3: ...G FIXTURE CAREFULLY FOR ANY SIGNS OF SHIPPING DAMAGE IF DAMAGE IS EVIDENT NOTIFY THE CARRIER AND MAGNETIC INSTRUMENTATION INC IMMEDIATELY THE INSTALLATION OPERATION AND MAINTENANCE OF THIS EQUIPMENT S...

Page 4: ...f power cables provided meet International Electromechanical Commission IEC safety standards Equipment provided with terminal blocks operating from either AC or DC is provided with appropriate means f...

Page 5: ...UIPMENT Because of the danger of introducing additional hazards do not install substitute parts or perform an unauthorized modification to the equipment The product may be returned for service and rep...

Page 6: ...CRIPTIONS 9 A General Description of Charge Control Board 10420270 9 B Technical Description of Charge Control Board 10420270 9 C General Description Power Supply and Relay Board 10401433 11 D General...

Page 7: ...Description of Parallel SCR Driver Board 10412049 14 VI SERVICE AND MAINTENANCE 16 A General Instructions 16 B Test Equipment 16 C Panel Removal 17 D Adjustments 17 E Trouble Shooting 17 VII REPLACEM...

Page 8: ...to the control circuits and engages a safety drain circuit that discharges any energy stored in the capacitor bank A 2 terminal twist lock CHARGEharge INTERLOCKnterlock socket Figure 6 is provided on...

Page 9: ...zing Fixture housing unless drawings of the internal construction are first obtained from Magnetic Instrumentation Inc An interlock is mounted to the panel covering the disconnect jacks for the Magnet...

Page 10: ...s Dimensions and Weight Size 31 wide x 39 long x 34 high Weight 350 pounds for 200 F unit 600 pounds for 800 F unit Not including Magnetizing Fixture B Control Panel Components Power ON OFF Switch Thi...

Page 11: ...charged by pressing the Magnetize push button provided the green ready to magnetize light is illuminated Auto Magnetize Down Position In this mode of operation the charge function must be initiated by...

Page 12: ...to the Magnetizer observe the connection pins and fixture housing for signs of wear Connecting a fixture that has a badly worn housing may pose a hazardous condition to the operator Make sure the conn...

Page 13: ...of continuous power 6 Turn on electronics cabinet power switch 7 The fan the red Power On light and the white Ready to Charge light should come on 8 Press the Charge push button The machine will charg...

Page 14: ...le flux change and therefore the greatest energy transfer for each size of current transformer Block diagram of the Model 942B Magnetizer Note All of the major components circuit designations in the f...

Page 15: ...is to bias the steel core if the transformer magnetically so that the greatest possible flux change may be transferred from primary to secondary This supply consists of transformer 2T rectifier diode...

Page 16: ...rformed by this board but it does provide a logic signal that starts the Parallel SCR Driver board which in turn gates the SCRs B Technical Description of Charge Control Board 10427655 Charge Circuit...

Page 17: ...a slightly negative potential at Pin 7 of header connector holding the Solid State Relay off Q309 is used to drive an at voltage ready to magnetize indicator or relay coil signal If ground supply comm...

Page 18: ...er to IC303 Upon seeing the trigger the output of IC303 goes high 15V and turns on the second half of the AND circuit Q306 This allows the collector of Q305 to go low providing a low impedance path to...

Page 19: ...nput AC voltage and or load The 15 VDC outputs are regulated and should not vary more than 0 5 volts The limiting factor for available output current may be dictated by the external transformer connec...

Page 20: ...202 The anode of D202 is connected to Pin 26 and the cathode of D202 is connected to Pin 28 of the header connector The polarity of the power used to turn on CR201 must make the diode D202 reversed bi...

Page 21: ...this board drives connected J General Description of Parallel SCR Driver Board 10412049 Caution This board is referenced to the high voltage potential of the Main Capacitor Bank any trouble shooting...

Page 22: ...wer line ground is connected to 1CN terminal 2 This power feeds the primary of two isolation transformers T1 and T2 T1 supplies the power for both gate drive circuits and T2 feeds a negative bias supp...

Page 23: ...safety of service personnel High Voltage is exposed with panels removed This unit should be operated with the panels removed ONLY if absolutely required for repair A General Instructions The Model 942...

Page 24: ...ments Maximum voltage setting power supply voltage and minimum cycle rate adjustments are factory set and should not be tampered with in any way without consulting Magnetic Instrumentation Inc E Troub...

Page 25: ...18 NOTES...

Page 26: ...POWER SUPPLY CHASSIS PARTS SAFETY DRAIN LOCKOUT RELAY 1CR 2PDT 25A 240VAC 120VAC 52606627 SAFETY DRAIN RELAY CRD 1PST N C 12A 10000V 26 5VDC VAC 52603004 DRAIN RESISTORS 3 4R 10 K 70 50W 5 30505798 D...

Page 27: ...G RECTIFIER ASSEMBLY 1 2SA 8883 DIODE BOARD ASSEMBLY 10007479 ANALOG METER RESISTOR ASSEMBLY 5SA H V RESISTOR DIVIDER MT 942A 9001 10008548 MISCELLANEOUS PARTS SIDE PANEL FAN 1FAN FAN 115VAC MINIATURE...

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