Table of Contents Title INTRODUCTION SAFETY PRECAUTIONS / WARNINGS CONTROLS AND INDICATORS PREPARATION AND CAUTION BEFORE USE TESTING PROCEDURES A. AC/DC VOLTAGE MEASUREMENT B. RESISTANCE MEASUREMENT W (OHMS) C. DIODE TEST D. CONTINUITY TEST E. AC/DC CURRENT MEASUREMENT (AMPS) F. BATTERY TEST BATTERY AND FUSE REPLACEMENT MAINTENANCE SPECIFICATIONS ELECTRICAL SPECIFICATIONS SERVICE PROCEDURES i Page No.
Introduction INTRODUCTION Congratulations. You have purchased a precision instrument manufactured to the highest quality standards. This Digital Multimeter is a general-purpose instrument designed for use in general electronics, home electrical applications, and auto-motive electrical/electronic systems. This meter is designed to test or measure AC voltage, DC voltage, batteries, DC current, AC current, resistance, diodes and continuity.
Safety Precautions / Warnings SAFETY PRECAUTIONS/ WARNINGS Do not operate this multimeter before reading this manual in its entirety. The following guidelines must be followed to avoid accidents that can result in electric shock or personal injury. Pay close attention to WARNINGS stamped on the front and rear of the meter's case. These warnings, as well as all warnings and precautions used through out this manual, must be followed to avoid electric shock and/or personal injury.
Safety Precautions / Warnings Do not hold the instrument when taking measurements. Place the instrument on a clean, insulating surface prior to taking any measurement. Don't become part of the circuit. Think safety. Act safely. If working on a vehicle, take the following added precautions: Only work on vehicle in a well ventilated area. Always wear safety eye protection. Avoid moving fan blades or any potentially moving parts. Avoid hot engine parts.
Controls and Indicators CONTROLS AND INDICATORS 1. DCV Function: Measures DC 2. 3. 4. 5. 6. 7. volts. Auto-ranging from 0 to 600 volts (10 MW impedance) 15 ACV Function: Measures AC 13 volts. Auto-ranging from 0 to 1 600 volts (10 MW impedance) 2 12 3 Resistance Function: 14 4 Measures resistance. Auto5 11 ranging from 0 to 20MW 6 10 (20,000,000W). ACmA Function: Measures AC current in milliamps. One range: 0 to 200 milliamps. 9 8 7 DIODE Function : For testing diodes.
Preparation and Caution Before Use PREPARATION AND CAUTION BEFORE USE. WARNING Inspect the digital multimeter for damage to the case. Do not use if cracked, distorted, excessively dirty or any abnormal condition exists. Inspect the test leads for damage. Check for cracked insulation, broken or damaged probes, loose or bent probe pins. Do not use if any abnormal condition exists. Set the Function/Range Selector Switch to the proper range BEFORE taking measurements.
Testing Procedures TESTING PROCEDURES A. AC/DC VOLTAGE MEASUREMENT WARNING To avoid possible electric shock, instrument damage and/or equipment damage, DO NOT attempt to measure voltages ABOVE 600V AC/DC or take measurements if the voltage is unknown. 600V AC/DC between the COM and V jacks is the maximum voltage that this instrument is designed to measure. The "COM" terminal potential should not exceed 300V AC/DC measured to ground. 1.
Testing Procedures 1. Plug the RED test lead into the "Ω" jack of the multimeter; plug the BLACK test lead into the "COM" jack. 2. Set the meter’s Function/ Range Selector Switch to the "Ω" range function (see Controls and Indicators, Item 3). BLACK RED LEAD LEAD NOTE: To obtain accurate readings, disconnect at least one side of the item under test from the circuit or circuit board before measuring resistance. 3.
Testing Procedures 3. Place the RED test lead onto one side of the diode being tested and the BLACK test lead onto the other side. 4. Read the results on the display. 5. Reverse the test leads and again read the results on the display. Compare the two readings. One reading should indicate a voltage drop value; the other reading should indicate an overrange (OL) condition. See note above. D.
Testing Procedures 1. Plug the RED test lead into the "mA" or the "DC10A" jack of the multimeter, as applicable; plug the BLACK test lead to the "COM" jack. TO MEASURE FROM 0mA TO 200mA BLACK RED LEAD LEAD TO MEASURE FROM 200mA TO 10A DC RED BLACK LEAD LEAD 2. Set the meter's Function/Range Selector Switch to the appropriate Amps range position as desired (see Controls and Indicators, Items 4, 10 and 11).
Testing Procedures F. BATTERY TEST 1. Plug the RED test lead into the "BAT." jack of the multimeter; plug the BLACK test lead into the "COM" jack. BLACK RED LEAD LEAD 2. Determine the voltage rating of the battery to be tested. 3. Set the meter’s Function/ Range Selector Switch to the desired "Battery Test" range (see Controls and Indicators, Item 12). 4. Place the RED test lead on the positive post of the battery under test; place the BLACK lead on the negative post.
Battery and Fuse Replacement / Maintenance BATTERY AND FUSE REPLACEMENT WARNING When replacing the battery or the fuse, remove only the rear panel. Do not remove or disassemble the circuit board or the front panel, these items are not serviceable and if disassembled there is the possibility of loose metal parts shorting the circuit board and causing an electrocution danger to the user. 1. Turn the Digital Multimeter “OFF” and remove the test leads. 2.
Specifications SPECIFICATIONS GENERAL SPECIFICATIONS AND FEATURES 3-½ digit LCD display (maximum reading of 2000); 3 LEDs; green, yellow and red Auto Range (ACV, DCV, Ohm, AC mA, and DC mA) Automatic negative (-) polarity indication Automatic zero adjustment Over range indicator (except 10 A function). Displays "OL" on LCD Low battery indicator.
Electrical Specifications ELECTRICAL SPECIFICATIONS DC VOLTS Range Resolution 200.0mV 0.1mV 2000V 1mV 20.00V 10mV 200.0V 100mV 600V 1V Accuracy ±(0.8% of reading + 5 digits) Notes Input Resistance: 10MΩ Overload Protection: 600V DC or AC 600V RMS AC VOLTS Range Resolution 2.000V 1mV 20.00V 10mV 200.0V 100mV 600V 1V Accuracy ±(1.2% of reading + 5 digits) Notes Input Resistance: 10MΩ Overload Protection: 600V DC or AC 600V RMS.
Electrical Specifications AC AMPS Range Resolution 20.00mA 10μA 200.0mA 100μA Accuracy ±(1.5% of reading + 5 digits) Notes Overload Protection: Fuse 315mA/250V Input Voltage Drop: <0.2V. BATTERY TEST (LEDs) When the voltage of the battery being tested is lower than 10% of its rated voltage, the red LED will not light. Load Range Resolution Current 1.5V 6V 0.001V 0.01V Accuracy 10mA (approx.) 100mA (approx.) Green LED: 5.22V ±0.3V and up. Yellow LED: 3.76V ±0.3V to 5.21V±0.3V. Red LED: 0.
Electrical Specifications DIODE/CONTINUITY TESTS Function Diode Test Range 2V Continuity 200Ω Test Resolution 1mV 0.1Ω Description Note Test Current: 1±0.6mA Test Voltage: Approx. 1.5V Overload Protection: Approx.
Service Procedures SERVICE PROCEDURES The Manufacturer warrants to the original purchaser that this unit is free of defects in materials and workmanship under normal use and maintenance for a period of one (1) year from the date of original purchase. If the unit fails within the one (1) year period, it will be repaired or replaced, at the Manufacturer's option, at no charge, when returned prepaid to the Technical Service Center with Proof of Purchase. The sales receipt may be used for this purpose.