Sinclair DM350 Instruction Manual Download | Manualshive

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sir-Idah-

DIGITAL

MULTIMETERS

DM350

and

DM450

INSTRUCTION MANUAL

1
2
3
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Summary of Contents for DM350

Page 1: ...sir Idah DIGITAL MULTIMETERS DM350 and DM450 INSTRUCTION MANUAL...

Page 2: ...applications as well as bench work The large LED display has an exceptionally wide viewing angle and has a variable brightness control Both instruments are full multimeters measuring AC and DC volts...

Page 3: ...9 a o 4 v F WCCE QNQ 96 El DUDE DDEDUD f3 _ W P...

Page 4: ...pro vided that DC level plus AC rms level does not exceed the maximum reading of the range DM450 displays only 3 digits on 200mV DC Current 8 ranges are available for inputs up to 10A continuous 20A i...

Page 5: ...s Special Sinclair rechargeable units are available Full instructions for use are provided in the pack Low Battery Indication Indication of failing batteries is provided by flashing of the display Thi...

Page 6: ...ing the input c Never connect the meter to a voltage source when the current function is selected d Take extra care when connecting to the 10A socket 9 since it is unprotected N ote The standard leads...

Page 7: ...to obtain both from the reading displayed Avoiding Ground Loop Interference if the AC adaptor charger is connected ground loop currents can be set up if the signal source ground is at a different pote...

Page 8: ...esting of Semiconductor Junctions The 2K9 resistance range acts effectively as a 1 mA constant current source with the common socket as positive terminal By connect ing a semiconductor junction such t...

Page 9: ...fs 1OOyLV 0 25 ri0 2 fs 100 J V 250V rms 10M Q 20Hz ZOkHZ 2V 0 2 r 0 02 fs 100ng O 25 ri0 1 fs 1mV 250V rms 10M Q 20Hz 20kHz 20V 0 25 r10 1 fs 1mV 0 4 r O 2 fs 10mV 750V rms 10M Q 20Hz 20kHz 200V 0 2...

Page 10: ...20Hz 10kHz 2000mA O 65 r l 0 15 fs 1mA 0 65 ri0 15 fs 1mA 2A 300mV 20Hz 10kHz 10A 2 5 r i0 15 fs 10mA 2 5 r i0 15 fs 10mA 10A 1V 20Hz 1kHz 20A 10 secs RESISTANCE Excitation Current Approx Max o c Vol...

Page 11: ...rvice as do most of their agents overseas Where an owner wishes to carry out his own re calibration this may be done providing sources whose values are known to a sufficient accuracy are available Inv...

Page 12: ...OM 450 RV4 RV3 RVI 003 03 RVZ...

Page 13: ...ment Sinclair Radionics Limited Careful packing is essential retain the original packing material If the guarantee has expired or if the fault is the result of misuse the repair will be carried out an...

Page 14: ...he fuseholder has an adaptor to accept 20mm x 5mm fuses This adaptor should be discarded when tting 1 x 1 1 fuses Refer to instruction manual for fuse type and rating INSTRUCTION SHEET PT No 48581 014...

Page 15: ...Printed by Stott Brothers Limited London and Halifax England...

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