Related Manuals for Circuit-test DMR-2400
Summary of Contents for Circuit-test DMR-2400
- Page 1 USER'S MANUAL DIGITAL MULTIMETER DMR-2400 CIRCUIT-TEST ELECTRONICS www.circuittest.com...
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Page 3: Table Of Contents
TABLE OF CONTENTS SAFETY Safety Information ........2 Safety Symbols . -
Page 4: Safety Information
SAFETY INFORMATION This meter is CUL and UL approved. This meter is designed to be safe un- der the following conditions: indoor use, altitude up to 2000m, temperature 5°C to 40°C, maximum relative humidity 80% for temperatures up to 31°C decreasing linearly to 50% relative humidity at 40°C and rated pollution degree 2. -
Page 5: Safety Symbols
For maximum safety, the meter and its test leads should not be handled when these terminals are energized. INTRODUCTION DMR-2400 is a manual ranging compact digital multimeter with a 2000 count LCD display. This meter can measure/test the following: – Voltage – DC Current –... -
Page 6: Specifications
SPECIFICATIONS GENERAL Display: digit 2000 count LCD Maximum Display: 1999 Ranging: Manual Polarity: Automatic, minus (-) sign indicates negative polar- ity, no sign for positive polarity Input impedance: 1M DCV / 452K ACV Diode Test: Test current of 1.5mA maximum Signal Injection: 2VAC Peak Approx., 30 to 40Hz Square Wave Over range indication: ʻIʼ... -
Page 7: Ranges And Accuracy
RANGES AND ACCURACY FUNCTION RANGE RESOLUTION ACCURACY DC VOLTAGE 200mV 100µV ±(1% reading + 6 digits) (DC V) 2000mV 10mV 200V 100mV ±(1.5% reading + 8 digits) 1000V AC VOLTAGE 200V 100mV ±(1.2% reading + 20 digits) (AC V) 750V DC CURRENT 200µA 100nA... -
Page 8: Operating Instructions
OPERATING INSTRUCTIONS 1. DC VOLTAGE MEASUREMENT WARNING : MAXIMUM INPUT IS 1000V DC. USE EXTREME CAUTION WHEN WORKING WITH HIGH VOLTAGES. NEVER APPLY THE TEST LEAD TO THE MEASURING CIRCUIT WHEN CHANGING THE POSITION OF THE FUNCTION SWITCH. IF YOU ARE UNSURE OF THE VOLTAGE BEING MEASURED, SELECT THE HIGHEST RANGE AND REDUCE UNTIL A SATISFACTORY READING IS OBTAINED. -
Page 9: Dc Current Measurement
➔ If the reading displayed does not have a sufficient number of digits, i.e. 115 instead of 115.4, set the function switch to the lower range. ➔ If ʻIʼ appears on the display, it indicates over-range. Immediately remove test leads from the measuring circuit to avoid any damage to the meter. The input voltage should not exceed the measurement capability of this meter. -
Page 10: Resistance Measurement
➔ Remove power from the circuit that is to be measured. Open up the circuit and connect the black lead to the negative side and the red lead to the positive side of the circuit so that the test leads are in series with the load to be measured. -
Page 11: Diode Test
➔ Apply the test leads to the circuit. ➔ If there is continuity, the display will read about 0.5 Ohms. If there is an open circuit, the display will read ʻIʼ. 6. DIODE TEST WARNING: NEVER CONNECT THE TEST LEAD TO ANY VOLTAGE WHEN THE FUNC- TION SWITCH IS SET TO . -
Page 12: Battery Replacement
8. BATTERY REPLACEMENT WARNING: DISCONNECT BOTH TEST LEADS FROM ANY SOURCE OF VOLTAGE BEFORE REMOVING THE BACK COVER. DO NOT OPERATE THE METER UNTIL THE BACK COVER IS IN PLACE AND FASTENED SECURELY. ʻLO BATʼ will appear in the display when the battery drops below the operating voltage and requires replacing. -
Page 13: Maintenance
b) 10 Amp Fast acting 6.3x32mm Fuse (by a professional person only) ➔ Turn off the meter and disconnect both test leads. ➔ Remove the two screws at the back of the case. ➔ Remove the single screw securing the battery/fuse cover and lift to open. -
Page 14: Accessories
Test Leads with Screw-on Alligator Clips (TL-222) LIMITED WARRANTY Circuit-Test Electronics warrants to the original purchaser that this product be free of defect in material or workmanship for a period of 2 years from the date of purchase. Visit our website (www.circuittest.com) for information on warranty service.