Related Manuals for Circuit-test DMR-1500
Summary of Contents for Circuit-test DMR-1500
- Page 1 USER’S MANUAL DIGITAL POCKET MULTIMETER DMR-1500 CIRCUIT-TEST ELECTRONICS www.circuittest.com...
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Page 3: Table Of Contents
TABLE OF CONTENTS SAFETY Safety Information ....... 2-3 Safety Symbols ........3 INTRODUCTION LCD Symbol Definitions . -
Page 4: Safety Information
SAFETY INFORMATION This meter is CUL and UL approved. This meter is designed to be safe under the following conditions: indoor use, altitude up to 2000m, tem- perature 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
• When ʻBATʼ appears on the display, change both batteries to achieve more accurate readings. • Turn the meter off and disconnect any load before removing the batteries. • Do not operate the unit unless the case is completely closed. •... -
Page 6: Introduction
INTRODUCTION DMR-1500 is an Auto Ranging Pocket sized meter featuring a large 3-3/4 digit LCD display with a 4000 count. This meter can measure/test the following: – Voltage – Frequency – Resistance – Continuity – Diode – Duty Cycle LCD DISPLAY SYMBOL DEFINITIONS... -
Page 7: Front Panel Description
DMR-1500 AUTO umFV KM Hz 4000 COUNT Hz / % RELATIVE SELECT Ω / VOLT Hz / % AUTO POWER OFF CIRCUIT-TEST MAX 450V DC / AC MAX 450V FRONT PANEL DESCRIPTION NO. ITEM DESCRIPTION LCD Display 3-3/4 digit 4000 count LCD Display... -
Page 8: Specifications
SPECIFICATIONS GENERAL Display: digit 4000 count LCD Maximum Display: 3999 Ranging: Auto Auto Shut-off: Meter will shut-off after 30 minutes from last Polarity: Automatic, minus (-) sign indicates negative polarity; no sign for positive polarity Measuring rate: 3 times/sec Input impedance: 10M (DCV / ACV) Diode Test: Test current of 1.0 mA maximum... -
Page 9: Ranges And Accuracy
RANGES AND ACCURACY FUNCTION RANGE RESOLUTION ACCURACY DC VOLTAGE 400mV 0.1mV ±(1.0% reading + 3 digits) (DC V) 10mV 400V 100mV 450V ±(1.2% reading + 3 digits) AC VOLTAGE ±(1.2% reading + 6 digits) (AC V) 10mV (40-200HZ) 400V 100mV 450V RESISTANCE ±(1.0% reading + 5 digits) -
Page 10: Dc Voltage Measurement
1. DC VOLTAGE MEASUREMENT WARNING : MAXIMUM INPUT IS 450V DC. USE EXTREME CAUTION WHEN WORKING WITH HIGH VOLTAGES. NEVER APPLY THE TEST LEAD TO THE MEASUR- ING CIRCUIT WHEN CHANGING THE POSITION OF THE FUNCTION SWITCH. NOTE: The meter is auto ranging and will automatically display the correct voltage within the overall range of the meter. -
Page 11: Resistance Measurement
➔ If ʻACʼ does not show on the display, push the SELECT button until it appears. ➔ Apply the test leads to the circuit to be measured. ➔ Read the displayed voltage. ➔ If ʻOLʼ appears on the display, it indicates over-range. Immediately remove test leads from the measuring circuit to avoid any damage to the meter. -
Page 12: Continuity Test
4. CONTINUITY TEST WARNING: NEVER CONNECT THE TEST LEADS TO ANY VOLTAGE WHEN / / / THE FUNCTION SWITCH IS SET TO . REMOVE ALL POWER FROM THE CIRCUIT BEING TESTED WHEN CHECKING RESISTANCE. DISCHARGE ANY CHARGED CAPACITORS. / / / ➔... -
Page 13: Frequency Measurement
– If one reading is around 0.5 and the other reading is ʻOLʼ, the diode is good – If both readings are ʻOLʼ, the diode is open (defective) – If both readings are very small or 0 (zero), the diode is shorted (defective) 6. -
Page 14: Duty Cycle Measurement
➔ If ʻOLʼ appears on the display, the value of the capacitor is over the maximum range of the meter. 8. DUTY CYCLE MEASUREMENT WARNING: NEVER MEASURE FREQUENCY ON A CIRCUIT WITH MORE THAN 250V. ➔ Set the function switch to VOLT/Hz/%. ➔... -
Page 15: Battery Replacement
10. 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. ʻBATʼ will appear in the display when the battery drops below the operating voltage and requires replacing. -
Page 16: Warranty
Any product which has been subjected to misuse or accidental damage is excluded from the warranty. Except as stated above, Circuit-Test Electronics makes no promises or warranties either expressed or implied including warranties of merchantability or the fitness for any particular purpose.