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MN16  V1.2    7/08 

Introduction 

Congratulations on your purchase of the Extech MN16 Autoranging Multimeter. This meter 
measures AC/DC Voltage, AC/DC Current, Resistance, Capacitance, Frequency, Diode Test, 
and Continuity plus Thermocouple Temperature. It features a rugged design for heavy duty 
use This meter is shipped fully tested and calibrated and, with proper use, will provide years 
of reliable service. 

Safety 

This symbol adjacent to another symbol, terminal or operating device 

indicates that the operator must refer to an explanation in the Operating 

Instructions to avoid personal injury or damage to the meter. 

This 

WARNING

 symbol indicates a potentially 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 (in this case) 600 VAC or VDC. 

This symbol adjacent to one or more terminals identifies them as being 

associated with ranges that may, in normal use, be subjected to 

particularly hazardous voltages. For maximum safety, the meter and its 

test leads should not be handled when these terminals are energized. 

This symbol indicates that a device is protected throughout by double 

insulation or reinforced insulation. 

 

 
PER IEC1010 OVERVOLTAGE INSTALLATION CATEGORY 

OVERVOLTAGE CATEGORY I 

Equipment of OVERVOLTAGE CATEGORY I is equipment for connection to circuits in 
which measures are taken to limit the transient overvoltages to an appropriate low level. 

Note – Examples include protected electronic circuits. 

OVERVOLTAGE CATEGORY II 

Equipment of OVERVOLTAGE CATEGORY II is energy-consuming equipment to be 
supplied from the fixed installation. 

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 of the installation. 

Note – Examples include electricity meters and primary over-current protection equipment

 

 

WARNING 

CAUTION 

MAX 
600V

 

Summary of Contents for Extech Instruments MN16

Page 1: ...User s Guide Autoranging Mini Multimeter Model MN16...

Page 2: ...identifies them as being associated with ranges that may in normal use be subjected to particularly hazardous voltages For maximum safety the meter and its test leads should not be handled when these...

Page 3: ...n electrical outlets can be difficult and misleading because of the uncertainty of connection to the recessed electrical contacts Other means should be used to ensure that the terminals are not live I...

Page 4: ...es 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 res...

Page 5: ...utton 10 Battery compartment rear Symbols and Annunciators Continuity Diode test Low Battery n nano 10 9 capacitance micro 10 6 amps m milli 10 3 volts amps A Amps k kilo 10 3 ohms F Farads capacitanc...

Page 6: ...isplay AC VOLTAGE FREQUENCY DUTY CYCLE MEASUREMENTS WARNING Risk of Electrocution The probe tips may not be long enough to contact the live parts inside some 240V outlets for appliances because the co...

Page 7: ...probe tip to the positive side of the circuit 8 Apply power to the circuit 9 Read the current in the display AC CURRENT MEASUREMENTS CAUTION Do not make 20A current measurements for longer than 30 sec...

Page 8: ...the function switch to the position 2 Insert the black lead banana plug into the negative COM jack Insert the red test lead banana plug into the positive jack 3 Press the MODE button to indicate and o...

Page 9: ...itors before taking any capacitance measurements Remove the batteries and unplug the line cords 1 Set the rotary function switch to the CAP position 2 Insert the black test lead banana plug into the n...

Page 10: ...ws you to make measurements relative to a stored zero reference value A reference voltage current etc can be stored and measurements made in comparison to that value The displayed value is the differe...

Page 11: ...ES OF THE RECOMMENDED SIZE AND TYPE Remove old or weak batteries so they do not leak and damage the unit 6 IF THE METER IS TO BE STORED FOR A LONG PERIOD OF TIME the batteries should be removed to pre...

Page 12: ...nt A DC 10A 0 01A 2 5 reading 5 digits 400 A 0 1 A 1 5 reading 5 digits 4000 A 1 A 40mA 0 01mA 400mA 0 1mA 1 8 reading 5 digits AC Current A AC 10A 0 01A 3 0 reading 7 digits 400 0 1 1 2 reading 4 dig...

Page 13: ...Minus sign for negative Measurement Rate 2 times per second nominal Low Battery Indication is displayed if battery voltage drops below operating voltage Battery Two AAA batteries Fuses mA A ranges 0...

Page 14: ...and will not be liable for any direct indirect incidental or consequential damages Extech s total liability is limited to repair or replacement of the product The warranty set forth above is inclusive...

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