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– 11 –

–  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. FREQUENCY MEASUREMENT

 

WARNING:

 NEVER MEASURE FREQUENCY ON A CIRCUIT WITH MORE 

THAN 250V. 

 Set the function switch to 

VOLT/Hz/%

.

 Press Hz/% button once and ʻHzʼ appears on the display.

 Apply the test leads to the point of measurement.

 Read the displayed frequency indicated with proper decimal point 

and symbol.

7. CAPACITANCE MEASUREMENT

 

WARNING:

  FULLY  DISCHARGE  THE  CAPACITOR  BY  SHORTING  THE 

CAPACITOR LEADS TOGETHER BEFORE TESTING. 

NOTE: The meter is  auto ranging and will automatically display the correct 
capacitance value within the overall range of the meter. 

 Set the function switch to 

/ / / .

 Press the Select button until ʻFʼ appears on the display.

 Touch the probe tips to the capacitor.

 Read the value and unit shown on the display. 

Summary of Contents for DMR-1500

Page 1: ...USER S MANUAL DIGITAL POCKET MULTIMETER DMR 1500 CIRCUIT TEST ELECTRONICS www circuittest com...

Page 2: ......

Page 3: ...NS General 6 Ranges and Accuracy 7 OPERATING INSTRUCTIONS 1 DC Voltage Measurement 8 2 AC Voltage Measurement 8 9 3 Resistance Measurement 9 4 Continuity Test 10 5 Diode Test 10 11 6 Frequency Measure...

Page 4: ...600VAC industrial power mains The unit is intended for use with low energy circuits up to 600VDC 600VAC or high energy circuits up to 250VAC 250VDC only Use caution when working above 60VDC or 30VAC...

Page 5: ...arnings of important operational procedures that must be followed to ensure personal and product safety This symbol indicates a General Warning When adjacent to a terminal or operating device indicate...

Page 6: ...following Voltage Frequency Resistance Continuity Diode Duty Cycle LCD DISPLAY SYMBOL DEFINITIONS DISPLAY SYMBOL DEFINITION DISPLAY SYMBOL DEFINITION AUTO Auto Ranging Micro BAT Low Battery m milli DC...

Page 7: ...ive Button Indicated by on the LCD display The displayed reading becomes the reference for subsequent readings The reading will get zeroed stored and subtracted from subsequent read ings This function...

Page 8: ...10M DCV ACV Diode Test Test current of 1 0 mA maximum Continuity Audible signal sounds if resistance is less than 30 Over range indication OL is displayed Operating Temp 5 to 35 C 41 to 95 F Storage T...

Page 9: ...ESISTANCE 400 4k 40k 400k 4M 40M 0 1 1 10 100 1k 10k 1 0 reading 5 digits 2 0 reading 10 digits FREQUENCY 10Hz 100Hz 1000Hz 10KHz 100KHz 0 001Hz 0 01Hz 0 1Hz 1Hz 10Hz 0 3 reading 6 digits DUTY CYCLE 0...

Page 10: ...e side of the circuit and red lead to the positive Read the displayed voltage If the minus sign appears it means the voltage is negative at the point being measured If OL appears on the display it ind...

Page 11: ...ESISTANCE DISCHARGE ANY CHARGED CAPACITORS NEVERAPPLYTHETESTLEADTOTHEMEASURINGCIRCUITWHEN CHANGING THE POSITION OF THE FUNCTION SWITCH NOTE Themeterisautorangingandwillautomaticallydisplaytheresistanc...

Page 12: ...NING NEVER CONNECT THE TEST LEAD TO ANY VOLTAGE WHEN THE FUNCTION SWITCH IS SET TO REMOVEALL POWER FROM THE CIRCUIT BEING TESTED WHEN PERFORMING THE DIODE TEST DISCHARGEANY CHARGED CAPACITORS Note If...

Page 13: ...ears on the display Apply the test leads to the point of measurement Read the displayed frequency indicated with proper decimal point and symbol 7 CAPACITANCE MEASUREMENT WARNING FULLY DISCHARGE THE C...

Page 14: ...oncanonlybeusedwhenmakingvoltageandcapacitance measurements Relative is indicated by on the LCD display This function sets the displayed reading to zero and stores it as a reference value which is sub...

Page 15: ...ngle screw securing the battery cover and lift to open Replace both batteries observing the correct polarity Replace the cover and tighten the screw MAINTENANCE a Always keep the meter dry b Keep the...

Page 16: ...on warranty service Anyproductwhichhasbeensubjectedtomisuseoraccidentaldamage is excluded from the warranty Except as stated above Circuit Test Electronics makes no promises or warranties either expr...

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