Elenco 3 1/2 Digit Cap. / Trans. Kit Manual do Utilizador Página 1

ELENCO®150 Carpenter AvenueWheeling, IL 60090(847) 541-3800Website: www.elenco.come-mail: [email protected] MULTIMETER KITMODEL M-2666KWIDE

Amps Section1. μA/mA scale not working:A. Check fuse.B. Measure across (μA/mA) terminal and(COM) terminal and check the followingsettings:200μ = 1kΩ 2

-10-PARTS LIST - SECTION AIf you are a student, and any parts are missing or damaged, please see instructor or bookstore.If you purchased this kit fro

-24-r Feed the battery snap wires through the slot onthe top case as shown in Figure U.r Connect the battery and place it in the cavity ofthe top case

rAssemble the LCD into the housing with the partsshown in Figure F. Note the top of the house iscurved. rWipe off zebra edges with a lint-free cloth a

-22-r Solder the spring to the PC board as shown inFigure Q.r Install the bottom two 2.5 x 8mm screws to theLCD housing as shown in Figure R.r Peel of

D1 - 1N4001 DiodeD2 - 1N4001 Diode(see Figure H)R19 - 900Ω .5% 1/4W Res.(white-blk-blk-blk-green)(see Figure I)R20 - 90Ω .5% 1/4W Res.(white-blk-blk-g

ASSEMBLE THE FOLLOWING COMPONENTS TO THE PC BOARD-20-IC Socket 14-pinIC3 - LM324 Op-Amp IC(see Figure M)R45 - 150Ω 1% 1/4W Res.(brn-green-blk-blk-brn)

-16-PARTS LIST - SECTION CRESISTORSQty. Symbol Description Color Code Part #r 1 R38 1.87kΩ 1% 1/4W brown-gray-violet-brown-brown 141830r 1 R37 3kΩ 1%

PARTS LIST - SECTION DRESISTORSQty. Symbol Description Color Code Part #r 1 R54 10kΩ 5% brown-black-orange-gold 151000r 1 R52 100kΩ 5% brown-black-yel

PARTS LIST - SECTION DRESISTORSQty. Symbol Description Color Code Part #r 1 R54 10kΩ 5% brown-black-orange-gold 151000r 1 R52 100kΩ 5% brown-black-yel

-34-SCHEMATIC DIAGRAM-1-INTRODUCTIONRangeSwitchesCurrentShuntsACConverterOhmsConverterVoltageDividerFunctionSwitchesA/DConverterandDisplayDriverDispla

-16-PARTS LIST - SECTION CRESISTORSQty. Symbol Description Color Code Part #r 1 R38 1.87kΩ 1% 1/4W brown-gray-violet-brown-brown 141830r 1 R37 3kΩ 1%

ASSEMBLE THE FOLLOWING COMPONENTS TO THE PC BOARD-20-IC Socket 14-pinIC3 - LM324 Op-Amp IC(see Figure M)R45 - 150Ω 1% 1/4W Res.(brn-green-blk-blk-brn)

D1 - 1N4001 DiodeD2 - 1N4001 Diode(see Figure H)R19 - 900Ω .5% 1/4W Res.(white-blk-blk-blk-green)(see Figure I)R20 - 90Ω .5% 1/4W Res.(white-blk-blk-g

-22-r Solder the spring to the PC board as shown inFigure Q.r Install the bottom two 2.5 x 8mm screws to theLCD housing as shown in Figure R.r Peel of

rAssemble the LCD into the housing with the partsshown in Figure F. Note the top of the house iscurved. rWipe off zebra edges with a lint-free cloth a

-24-r Feed the battery snap wires through the slot onthe top case as shown in Figure U.r Connect the battery and place it in the cavity ofthe top case

-10-PARTS LIST - SECTION AIf you are a student, and any parts are missing or damaged, please see instructor or bookstore.If you purchased this kit fro

Amps Section1. μA/mA scale not working:A. Check fuse.B. Measure across (μA/mA) terminal and(COM) terminal and check the followingsettings:200μ = 1kΩ 2

PART IDENTIFICATION CARDSTo help identify the resistors and diodes used in the construction of your digitalmultimeter we have mounted the diodes and r

-28-1. FEATURES• Wide measuring ranges: 34 ranges for AC/DC Voltage and Current, Resistance, Capacitance, TR hFE,Diode Test, and Continuity Buzzer.• 1

During autozero, a ground reference is applied as aninput to the A/D converter. Under ideal conditions theoutput of the comparator would also go to ze

-6-ASSEMBLYThe meter kit has been divided into a number ofsections to make the assembly easy and avoidmajor problems with the meter operation.ONLY OPE

Transistor hFERange Test ConditionNPN 2mA 3VPNP 2mA 3VDiode TestMeasures forward resistance of a semiconductor junction in k Ohm at max. test current

-4-RESISTANCE MEASUREMENTSFigure 5 shows a simplified diagram of the resistance measurement function.Figure 5 Simplified Resistance Measurement Diagr

-32-(E) Transistor hFEMeasurement1. The transistor must be out of circuit. Set therotary selector knob to the hFE position.2. Turn the meter on by pr

During autozero, a ground reference is applied as aninput to the A/D converter. Under ideal conditions theoutput of the comparator would also go to ze

-34-SCHEMATIC DIAGRAM-1-INTRODUCTIONRangeSwitchesCurrentShuntsACConverterOhmsConverterVoltageDividerFunctionSwitchesA/DConverterandDisplayDriverDispla

ELENCO®150 Carpenter AvenueWheeling, IL 60090(847) 541-3800Website: www.elenco.come-mail: [email protected] MULTIMETER KITMODEL M-2666KWIDE

-32-(E) Transistor hFEMeasurement1. The transistor must be out of circuit. Set therotary selector knob to the hFE position.2. Turn the meter on by pr

-4-RESISTANCE MEASUREMENTSFigure 5 shows a simplified diagram of the resistance measurement function.Figure 5 Simplified Resistance Measurement Diagr

Transistor hFERange Test ConditionNPN 2mA 3VPNP 2mA 3VDiode TestMeasures forward resistance of a semiconductor junction in k Ohm at max. test current

-6-ASSEMBLYThe meter kit has been divided into a number ofsections to make the assembly easy and avoidmajor problems with the meter operation.ONLY OPE

-28-1. FEATURES• Wide measuring ranges: 34 ranges for AC/DC Voltage and Current, Resistance, Capacitance, TR hFE,Diode Test, and Continuity Buzzer.• 1

PART IDENTIFICATION CARDSTo help identify the resistors and diodes used in the construction of your digitalmultimeter we have mounted the diodes and r