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Safety Symbols

This marking adjacent to another marking,  terminal,
or operating device indicates that the operator must
refer to the explanation in the operating instructions
to avoid damage to the equipment and/or to avoid
personal injury.

This WARNING sign denotes a hazard.

It calls

attention to a procedure, practice or the like, which if
not correctly performed or adhered to, could result in
personal injury.

This CAUTION sign denotes a hazard.

It calls

attention to a procedure, practice or the like, which, if
not correctly adhered to, could result in damage to or
destruction of part or all of the instrument.

This marking advises the user that the terminal(s) so
marked must not be connected to a circuit point at
which the voltage, with respect to earth ground,
exceeds (in this case) 500 volts.

This symbol, adjacent to one or more terminals,
identifies them as being associated with ranges that
may in normal use be subjected to particularly
hazardous voltages.
For maximum safety, the instrument and its test leads
should not be handled when these terminals are
energized.

This marking indicates that equipment is protected
completely be the double insulation.

2. Introduction

This meter is a 3 1/2 digit digital multimeter that is rugged,
reliable and convenient to use, while providing all of the
accuracy and features needed for any application.

It

performs DC/AC voltage, DC current, resistance,
transistor, and diode. It is designed for technicians and
students.

Transistor h

FE

Measurement

1. Set the RANGE switch to the h

FE

position.

2. Determine whether the transistor is an NPN or PNP-

type and locate the Emitter, Base and Collector
leads. Insert the leads into the proper holes of the
h

FE

socket on the front panel.

3. The meter will display the approximate h

FE

value at

the condition of base current 10

m

A and VCE 2.8V.

!

WARNING

CAUTION

500V max.

-4-

-13-

Содержание M-1000B

Страница 1: ...OPERATOR S INSTRUCTION MANUAL DIGITAL MULTIMETER M 1000B Copyright 2003 ElencoTM Electronics Inc...

Страница 2: ...ion 8 9 5 3 How to Make Measurements 10 13 6 Maintenance 14 6 1 Battery Replacement 14 6 2 Fuse Replacement 15 WARNING PLEASE READ THIS INSTRUCTION MANUAL CAREFULLY Misuse and or abuse of this instruc...

Страница 3: ...ircuit Small amounts of current can be dangerous Use caution when working above 60VDC or 30VAC rms Such voltages pose a shock hazard When using the test lead keep your fingers behind the guards on the...

Страница 4: ...hat the terminal s so marked must not be connected to a circuit point at which the voltage with respect to earth ground exceeds in this case 500 volts This symbol adjacent to one or more terminals ide...

Страница 5: ...y 3 1 2 LCD 1999 count display Polarity Automatic is displayed Overrange Indication 1 on LCD is displayed Operation Temperature 32O F to 122O F Power 9V Alkaline or Carbon Zinc battery NEDA 1604 Batte...

Страница 6: ...0 8 of rdg 2dgt OVERLOAD PROTECTION 220Vrms AC for 200mV range and 1000VDC or 750Vrms AC for other ranges AC Voltage 200V 100mV 1 2 of rdg 10dgt 750V 1V 1 2 of rdg 10dgt OVERLOAD PROTECTION 1000VDC f...

Страница 7: ...of rdg 2dgt OVERLOAD PROTECTION 15 seconds maximum 220Vrms on all ranges MAXIMUM OPEN CIRCUIT VOLTAGE 2 8V TR hFE NPN 10mA DC 3 0V DC PNP 10mA DC 3 0V DC DIODE TEST Measures forward resistance of a s...

Страница 8: ...rors 3 Avoid using the unit in places with rapid temperature variations 4 In order to prevent damage or injury to the unit never fail to keep the maximum tolerable voltage and current especially for t...

Страница 9: ...1 2 6 3 5 4 9...

Страница 10: ...ement 1 Plug the red test lead into the V W mA jack and the black test lead into the COM jack 2 Set the RANGE switch to the desired DCV position If the voltage to be measured is not known beforehand s...

Страница 11: ...ear on the digital display DC Current Measurement 1 Plug the red test lead into the V W mA jack and the black test lead into the COM jack for measurements between 200mA and 10A connect the red test le...

Страница 12: ...easuring 4 Connect the test leads to the circuit to be measured 5 Read the resistance value on the digital display Diode Measurement 1 Plug the red test lead into the V W mA jack and the black test le...

Страница 13: ...ine whether the transistor is an NPN or PNP type and locate the Emitter Base and Collector leads Insert the leads into the proper holes of the hFE socket on the front panel 3 The meter will display th...

Страница 14: ...it from the top case 2 Unsnap the battery from the connector and replace it with a new 9 volt battery 3 Close the case cover and secure it with the screws 14 WARNING Before attempting battery fuse re...

Страница 15: ...rom the back of the case 3 Remove the fuse from the holder and replace it with a new fuse of the specified value Fuse Numbers 200mA 250V Bussman Fuse GMA 2 10 200mA 250V Little Fuse 235 200 200mA 250V...

Страница 16: ...Elenco TM Electronics Inc 150 W Carpenter Avenue Wheeling IL 60090 847 541 3800 http www elenco com e mail elenco elenco com...

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