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User's Guide

Mini Multimeter
with Non-Contact Voltage Detector (NCV)

Model EX310

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Summary of Contents for EX310

Page 1: ...User s Guide Mini Multimeter with Non Contact Voltage Detector NCV Model EX310 ...

Page 2: ...ially hazardous situation which if not avoided could result in death or serious injury This CAUTION symbol indicates a potentially hazardous situation which if not avoided may result damage to the product This symbol advises the user that the terminal s so marked must not be connected to a circuit point at which the voltage with respect to earth ground exceeds 600V This symbol adjacent to one or m...

Page 3: ...ges 3 DO NOT measure voltage if the voltage on the COM input jack exceeds 600V above earth ground 4 NEVER connect the meter leads across a voltage source while the function switch is in the current resistance or diode mode Doing so can damage the meter 5 ALWAYS discharge filter capacitors in power supplies and disconnect the power when making resistance or diode tests 6 ALWAYS turn off power and d...

Page 4: ... the recessed electrical contacts Other means should be used to ensure that the terminals are not live If the equipment is used in a manner not specified by the manufacturer the protection provided by the equipment may be impaired This device is not a toy and must not reach children s hands It contains hazardous objects as well as small parts that the children could swallow In case a child swallow...

Page 5: ...pere test lead jack 7 COM test lead jack 8 Test lead jack for voltage milliamp resistance continuity and diode functions 9 Protective rubber holster must be removed to access the rear battery compartment Symbols Continuity Diode Battery status AC DC m milli 10 3 volts amps k kilo 103 ohms V Volts A Amps Ω Ohms AC Alternating current DC Direct current V mA CAT II 600V EX310 MultiMeter 1 2 3 4 5 6 7...

Page 6: ...a voltage source WARNING Test the AC voltage detector on a known live circuit before each use WARNING Before using the meter in the AC Voltage Detector mode verify that the battery is fresh by confirming characters appear on the LCD when the function dial is turned to any position Do not attempt to use the meter as an AC Voltage Detector if the battery is weak or bad NON CONTACT VOLTAGE NCV The NC...

Page 7: ...anana plug into the negative COM jack Insert red test lead banana plug into the positive V jack 3 Touch the black test probe tip to the neutral side of the circuit 4 Touch the red test probe tip to the hot side of circuit 5 Read the voltage in the display DC VOLTAGE MEASUREMENTS CAUTION Do not measure DC voltages if a motor on the circuit is being switched ON or OFF Large voltage surges may occur ...

Page 8: ...T MEASUREMENTS CAUTION Do not make current measurements at 10 Amps for longer than 30 seconds Exceeding 30 seconds may cause damage to the meter and or the test leads 1 Insert the black test lead banana plug into the negative COM jack 2 For current measurements up to 200mA AC or DC set the function switch to the 200m AAC or ADC position and insert the red test lead banana plug into the mA jack 3 F...

Page 9: ... test so the rest of the circuit will not interfere with the resistance reading 5 Read the resistance in the display Move the function switch to successively lower Ω positions to obtain a higher resolution reading CONTINUITY CHECK WARNING To avoid electric shock never measure continuity on circuits that have a voltage potential 1 Set the function switch to the position 2 Insert the black lead bana...

Page 10: ...the red test lead banana plug into the positive jack 3 Touch the test probes to the diode under test 4 A good diode will indicate approx 700 ohms for the forward test and 1___ for the reverse test 5 A shorted diode will indicate the same value of resistance in both the reverse and forward test directions An open diode will indicate 1___ in both test directions ...

Page 11: ...METER DRY If it gets wet wipe it off 2 USE AND STORE THE METER IN NORMAL TEMPERATURES Temperature extremes can shorten the life of the electronic parts and distort or melt plastic parts 3 HANDLE THE METER GENTLY AND CAREFULLY Dropping it can damage the electronic parts or the case 4 KEEP THE METER CLEAN Wipe the case occasionally with a damp cloth DO NOT use chemicals cleaning solvents or detergen...

Page 12: ...he Phillips head screw located on the lower back of the instrument 4 Remove the fuse battery compartment cover to access the battery See diagram 5 Replace the 9V battery observing polarity 6 Secure the fuse battery compartment cover using the Phillips head screw 7 Place the protective rubber holster on the meter You as the end user are legally bound Battery ordinance to return all used batteries a...

Page 13: ...move the Phillips head screw located on the lower back of the instrument 4 Remove the fuse battery compartment cover to access the fuses 5 Gently remove the fuse s and install new fuse s into the holder s 6 Always use fuses of the proper size and value 200mA 250V fast blow for the mA µA ranges 10A 250V fast blow for the A range 7 Secure the fuse battery compartment cover 8 Place the protective rub...

Page 14: ...1V 600V 1V 1 5 reading 2 digits AC Voltage VAC 50 60Hz 200V 0 1V 1 5 reading 3 digits 600V 1V 2 0 reading 4 digits DC Current A DC 200mA 0 1mA 1 5 reading 2 digits 10A 0 01A 2 5 reading 5 digits AC Current A AC 50 60Hz 200mA 0 1mA 1 8 reading 5 digits 10A 0 01A 3 0 reading 7 digits Resistance 200Ω 0 1Ω 1 2 reading 4 digits 2000Ω 1Ω 1 2 reading 2 digits 20kΩ 0 01kΩ 200kΩ 0 1kΩ 2000kΩ 1kΩ Notes Accu...

Page 15: ...emperature 32ºF to 122ºF 0ºC to 50ºC Storage Temperature 4o F to 140o F 20o C to 60o C Operating Humidity Max 70 up to 87ºF 31ºC decreasing linearly to 50 at 122ºF 50ºC Storage Humidity 80 RH Operating Altitude 7000 ft 2000 meters maximum Weight 9 17 oz 260g includes holster Size 5 8 x 2 9 x 1 6 147 x 76 x 42mm includes holster Approvals CE UL Safety This meter is intended for indoor use and prote...

Page 16: ...ion Note Examples include household office and laboratory appliances OVERVOLTAGE CATEGORY III Equipment of OVERVOLTAGE CATEGORY III is equipment in fixed installations Note Examples include switches in the fixed installation and some equipment for industrial use with permanent connection to the fixed installation OVERVOLTAGE CATEGORY IV Equipment of OVERVOLTAGE CATEGORY IV is for use at the origin...

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