OPERATOR’S INSTRUCTION MANUAL DIGITAL MULTIMETER M-1000D Elenco® Electronics, Inc. 150 Carpenter Avenue Wheeling, IL 60090 (847) 541-3800 Website: www.elenco.com e-mail: elenco@elenco.com Copyright © 2008 Elenco® Electronics, Inc.
Contents 1. Safety Information 3 2. Introduction 4 3. Features 5 4. Specifications 4-1 General Specifications 4-2 Measurement Specifications 5 5 6, 7 5. Operation 8 5-1 Preparation and Caution before Measurement 8 5-2 Front Panel Description 8, 9 5-3 How to Make Measurements 10-13 6.
6. Maintenance 1. Safety Information WARNING Before attempting battery & fuse removal or replacement, disconnect the test leads from any energized circuits to avoid hazard. 6-1. Battery Replacement Replace the battery when “BAT” appears on the display. 1. Remove the two screws on the case cover. Then, detach it from the top case. To ensure that the meter is used safely, follow all of the safety and operation instructions in this manual.
Safety Symbols ! Transistor hFE Measurement 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. WARNING 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. CAUTION This CAUTION sign denotes a hazard.
Resistance Measurement 1. Plug the red test lead into the “V Ω mA” jack and the black test lead into the “COM” jack. 2. Set the RANGE switch to the desired Ω position. 3. If the resistance being measured is connected to a circuit, turn off the power and discharge all capacitors before measuring. 4. Connect the test leads to the circuit to be measured. 5. Read the resistance value on the digital display. 3. Features • 7 Functions / 17 Measuring Ranges • 0.
4-2. Measurement Specifications AC Voltage Measurement Accuracy of specifications apply for 1 year after purchase when operated in a temperature of 18OC to 28OC (64OF to 82OF) and a relative humidity of less than 75%. Basic electrical specifications are given as +([% of reading] + [number of least significant digits]). 2. Set the RANGE switch to the desired ACV position. DC Voltage Range Resolution Accuracy 200mV 2000mV 20V 200V 1000V 100µV 1mV 10mV 100mV 1V +(0.25% of rdg+2dgt) +(0.
5-3. How to Make Measurements WARNING 1. To avoid electrical shock hazard and/or damage to the meter, do not measure voltages that might exceed 500V above earth ground. 2. Before using the instrument, inspect the test leads, connectors, and probes for cracks, breaks, or grazes in the insulation. Resistance Range Resolution Accuracy 200Ω 2kΩ 20kΩ 200kΩ 2000kΩ 0.1Ω 1Ω 10Ω 100Ω 1kΩ +(0.8% of rdg+2dgt) +(0.8% of rdg+2dgt) +(0.8% of rdg+2dgt) +(0.
5. Operation 5-1. Preparation & Caution Before Measurement 1. The function switch should be set to the range to be measured before operation. If the function must be switched during a measurement, always remove the test leads from the circuit being measured. 2. If the unit is used near noise-generating equipment, be aware that the display may become unstable or indicate large errors. 3. Avoid using the unit in places with rapid temperature variations. 4.
