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0-35 V, 0-6 A

DC POWER SUPPLY

With Dual 4-Digit

LED Displays

Fuente de Poder de DC con

Doble LED indicador

0-35V, 0-6A

INSTRUCTION

MANUAL

MANUAL DE INSTRUCCIONES

Model 1743B

Modelo 1743B

Содержание 1743B

Страница 1: ...0 35 V 0 6 A DC POWER SUPPLY With Dual 4 Digit LED Displays Fuente de Poder de DC con Doble LED indicador 0 35V 0 6A INSTRUCTION MANUAL MANUAL DE INSTRUCCIONES Model 1743B Modelo 1743B...

Страница 2: ...s shock hazard exists unless the equipment is unplugged just turning off the equipment does not remove the hazard or an isolation transformer is used b If the equipment under test is powered up and th...

Страница 3: ...rent Operation 15 Constant Voltage Constant Current Characteristic 16 Connecting Two Power Supplies in Series 16 Connecting Two Power Supplies in Parallel 19 Page APPLICATIONS 20 General 20 Electronic...

Страница 4: ...load variations cause the current to reach the preset limit the unit then regulates output current rather than output voltage Current limits are adjustable from 5 to 100 of maximum In constant curren...

Страница 5: ...read LED digit displays monitors output voltage and output current and provides good visibility in bright or low light LED INDICATORS Act as pilot light and identify mode of operation and metering PRE...

Страница 6: ...0 PPM C CONSTANT CURRENT OPERATION Adjustable Current Limits 5 to 100 Current Regulation Line 108 132 V 0 4 5 mA Load 0 4 5 mA Current Ripple 3 mA typical METERING Voltmeter 4 digit Green LED Display...

Страница 7: ...pes Thermal Drift results in the metering of the power supply to either slowly increase or decrease with the change in the power supply s internal temperature As the power supply outputs more power it...

Страница 8: ...inuously monitors voltage 4 RED LED Display 4 digit display continuously monitors current VOLTAGE CONTROLS 5 Coarse Control Coarse adjustment of output voltage Read value on GREEN LED display 6 Fine C...

Страница 9: ...9 CONTROLS AND INDICATORS Figure 1 Front Panel Controls and Indicators Figure 2 Rear Panel REAR PANEL CONTROLS 7 Fuse 8 Power Cord 9 110 220 Line Voltage Conversion Switch...

Страница 10: ...ild up Although the power supply is protected against reverse polarity damage the circuit being powered may not include such protection Always carefully observe polarity incorrect polarity may damage...

Страница 11: ...OPERATING INSTRUCTIONS 11 Figure 3 A and B Grounding Possibilities...

Страница 12: ...12 OPERATING INSTRUCTIONS Figure 3 C and D Grounding Possibilities...

Страница 13: ...the circuit can result from reverse polarity Use color coded hook up leads for convenience in identifying polarity red for and black for 6 Make sure that the hook up leads offer sufficient current ca...

Страница 14: ...ion of the VOLTAGE control will not increase the output voltage SETTING CURRENT LIMIT 1 Determine the maximum safe current for the device to be powered 2 Temporarily short the and terminals of the pow...

Страница 15: ...power supply and connect it to the device to be powered 5 Turn on the power supply The CC indicator should light 6 Increase the Coarse and Fine CURRENT control setting until the desired constant curr...

Страница 16: ...t voltage mode automatically occurs from a decrease in load A good example of this would be seen when charging a 12 volt battery Initially the open circuit voltage of the power supply may be preset fo...

Страница 17: ...OPERATING INSTRUCTIONS Figure 8 Connecting Two Power Supplies in Series 17...

Страница 18: ...18 OPERATING INSTRUCTIONS Figure 9 Connecting Two Power Supplies in Parallel...

Страница 19: ...lue Then when the load is connected set the VOLTAGE controls on the two power supplies for equal voltage readings This should also provide approximately equal current from each supply Add the two curr...

Страница 20: ...ests such as checking the effect of AGC bias in a television receiver This requires an isolated dc power supply such as the Model 1743B The equipment being tested may contain its own power supply and...

Страница 21: ...and voltage meter simultaneously is a great aid in such experiments BATTERY CHARGING The power supply can be used as a battery charger to restore the charge in rechargeable batteries such as lead aci...

Страница 22: ...OPERATION FUSE VALUE TYPE 120 V 3 5 A SLOW BLOW 220 230 240 V 1 75 A SLOW BLOW Table 1 Fuse Values LINE VOLTAGE CONVERSION INTERNATIONAL UNITS The primary winding of the power transformer is tapped to...

Страница 23: ...00 volts on the Multimeter Adjust upper GREEN R304 for a front panel meter reading of 35 00 volts on the GREEN VOLTAGE meter 1 Set the front panel Coarse VOLTAGE control for a reading of 04 00 to 06 0...

Страница 24: ...MAINTENANCE Figure 11 Location of Adjustments 24...

Страница 25: ...ount must include payment in the form of a money order or credit card For the most current repair charges please visit www bkprecision com and click on service repair Return all merchandise to B K Pre...

Страница 26: ...om within fifteen 15 days of purchase Exclusions This warranty does not apply in the event of misuse or abuse of the product or as a result of unauthorized alterations or repairs The warranty is void...

Страница 27: ...off switch fuses power transformer etc any time the equipment is connected to an ac outlet 7 B K Precision products are not authorized for use in any application involving direct contact between our...

Страница 28: ...22820 Savi Ranch Parkway Yorba Linda CA 92887 www bkprecision com 2002 B K Precision Corp V072814 Printed in Taiwan...

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