EZ Digital DM-330SRS Operation Manual Download Page 4

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INTRODUCTION -- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1

MULTIMETER SAFETY- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2

FEATURES - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4

HOW TO USE THE METER - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5

Input Terminals - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5

Function Selector Rotary Switch- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5

Pushbuttons - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 8

Digital display - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 9

APPLICATIONS - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -10

Measuring Voltage (AC/DC) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -10

(continued on page ii)

CONTENTS

TITLE PAGE

Summary of Contents for DM-330SRS

Page 1: ...Test Equipment Depot 800 517 8431 99 Washington Street Melrose MA 02176 FAX 781 665 0780 TestEquipmentDepot com...

Page 2: ......

Page 3: ...se rating 250V 10A measurements Below 10A Fuse rating 250V measurements Below 600VAC DC 1 minute measurements Below 600VAC DC 1 minute Capacitance measurements Below 600VAC DC Hz measurements Below 25...

Page 4: ...TIMETER SAFETY 2 FEATURES 4 HOW TO USE THE METER 5 Input Terminals 5 Function Selector Rotary Switch 5 Pushbuttons 8 Digital display 9 APPLICATIONS 10 Measuring Voltage AC DC 10 continued on page ii C...

Page 5: ...Continuity Test 15 Battery Test 16 Measuring Frequency 17 Measuring Capacitance 19 Inner Battery Voltage Check 20 MAINTENANCE 21 Calibration Replcement 21 Battery Fuse Replcement 22 SPECIFICATIONS 23...

Page 6: ...both the meter and probe tip with one hand WARNING READ MELTIMETER SAFETY BEFORE USING THE METER Your EAD Digital Multimeter also referred to as the meter is a handheld instrument that is designed for...

Page 7: ...e selection position and jack terminal used Buzzer sound if rotary switch is not set to Amp mode 10A DC AC during 10A terminal which a detector is built in pluged in by test lead To avoid accidentally...

Page 8: ...0 000 00 00 0 000 Figure 2 Using Effect A No plug in 10A JACK terminal Range selector except 10A position B Performance good Measurement C Buzzer sound mismatching mismatching Good MULTIMETER SAFETY 3...

Page 9: ...s WARNING TO AVOID ELECTRICAL SHOCK OR DAMAGE TO THE METER DO NOT APPLY MORE THAN 1000V BETWEEN COMTERMINAL AND EARTH GROUND TO AVOID ELECTRICAL SHOCK USE CAUTION WHEN WORKING ABOVE 60V DC OR 30V AC R...

Page 10: ...inal for all measurements Do not apply more than 1000V between The COM terminal and Earth ground v Volts Ohms Continuity Current Ma BAT Frequency CAP Diode test input Terminal Red Color SOCKET Transis...

Page 11: ...DM 333 MAXIMUM INPUT V V COM 0 1 0 1 1000V 1000V 1000VDC 750VAC 10A 10A COM 0 01A 0 01A 10 00A 10 00A 10A 250V V COM 1 1 399 9 325 9 400 250V V COM 0 1 0 1 39 99 32 59 600VAC DC 1min CAP V COM 0 01 D...

Page 12: ...mode The MIN MAX are then reset to the present input in the MIN MAX recording mode the MIN MAX are stored in memory Push MIN MAX button to cycle through the MIN MAX and present readings at normal rec...

Page 13: ...e and the present reading for example if the reference value is 15 00V and the present reading is 14 10V the display will indicate 0 90V If the new reading is the same as the reference value the displ...

Page 14: ...e mode and will automatically select range with the best resolution The meter powers on in auto range mode 4 NEGATIVE POLARITY Automatically indicates negative inputs When REL is enabled indicates neg...

Page 15: ...l and red one to v terminal and turn the rotary switch to DCV or ACV range as Figure 5 1 Connect the meter in parallel with the load or circuit under test Each of AC DC voltage ranges presents an inpu...

Page 16: ...h to DCA or ACA range as Figure 5 2 Connect the meter in series with the load or circuit under test and note that the frequency range for AC current measurement is 50 to 400 and 50 60 for DM 333 When...

Page 17: ...attempting in circuit resistance measurements If an external voltage is present across a component it will be impossible to take an accurate measurement of the resistance of that component Due to the...

Page 18: ...e as Figure 5 4 insert the leads Emitter Base Collector into the proper holes of the socket on the front panel according to transistor type NPN or PNP The display reads approximate eFE value at the te...

Page 19: ...erminal and the red one into v inputs turn the rotary switch to and connect the test leads across the diode under measurement as Figure 5 5 The forward voltage drop is displayed in V unit and overload...

Page 20: ...and the red one to v terminal and the leads across the resistance or circuit under measurement as Figure 5 6 Test resistance below 40 DM 331 332 334 or 20 DM 333 cause the meter to emit a continuous...

Page 21: ...lead to common terminal and red one to v terminal and turn the rotary switch to BAT range as Figure 5 7 Connect the test leads across the battery under measurement The kinds of AAM AM CM DC batteries...

Page 22: ...isplay shows 0 000 for frequencies measurements Turn the rotary switch to the frequency range setting connect the meter to the signal being measured connecting the meter to the signal will normally al...

Page 23: ...V 4V 8V input sensitivity RMS sinewave Items Contents Conditions Effective Number upper 3 digits 40 0 99 9 400 999 99 9 Range 999 Range Bar graph disappear Normal disappear Push twice Hold Key Digits...

Page 24: ...ng capacitor turn rotary switch to CAP and connect the test leads to the capacitor For capacitors less than 10 or in noisy environments use short test leads or a test fixture NOTE Capacitor should be...

Page 25: ...AGE CHECK DM 333 Inner Battery Voltage Check DM 333 To check inner battery voltage set rotary function switch to CHK range like as Figure 5 10 This display reads approximate inner battery voltage valu...

Page 26: ...option and returned at no charge If the warranty has laped the meter will be repaired and returned for a fixed fee Contact the nearest EZD s distributor for information and prices Battery Replacement...

Page 27: ...Figure 5 10 Battery Fuse Replacement MAINTENANCE CALIBRATION REPLACEMENT 22...

Page 28: ...40 400 1 10 0 1 1 5 2dgt D C C U R R E N T 10A 10 2 0 5dgt 10A 10 2 0 5dgt Specifications SPECIFICATIONS DM 331 DM 332 23 Accuracy is ginven as of reading number of least sanificant digits at 18 to 28...

Page 29: ...1 0 2 d g t R E S I S TA N C E 4 0 1 0 2 5 2 d g t 4 0 1 0 2 5 2 d g t C A P AC I TA N C E 4 0 4 0 4 4 0 1 0 1 0 0 1 1 0 5 0 4 d g t Accuracy is ginven as of reading number of least sanificant digits...

Page 30: ...BASE CURRENT 2 VCE APPROX 3V Accuracy is ginven as of reading number of least sanificant digits at 18 to 28 with relative humidity up to 80 for a period of one year after calibraton Sources like small...

Page 31: ...0 0 1 V 1 0 3 d g t 3 2 0 0 1 1 0 2 d g t 3 2 0 0 1 2 0 2 d g t 3 2 1 0 1 0 2 d g t 3 2 0 0 1 2 0 2 d g t 4 0 4 0 0 1 0 0 1 1 5 2 d g t D C C U R R E N T 1 0 A 1 0 2 5 2 d g t 1 0 A 1 0 2 0 5 d g t A...

Page 32: ...ations SPECIFICATIONS DM 333 DM 334 27 Accuracy is ginven as of reading number of least sanificant digits at 18 to 28 with relative humidity up to 80 for a period of one year after calibraton Sources...

Page 33: ...DM 333 DM 334 28 Accuracy is ginven as of reading number of least sanificant digits at 18 to 28 with relative humidity up to 80 for a period of one year after calibraton Sources like small hand held r...

Page 34: ...29...

Page 35: ...30 Test Equipment Depot 800 517 8431 99 Washington Street Melrose MA 02176 FAX 781 665 0780 TestEquipmentDepot com...

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