Extech Instruments MM750W User Manual Download Page 3

MM750W-en-GB_v1.1   12/18 

Introduction 

Thank you for selecting the Extech Model MM750W Wireless Datalogging CAT IV True 
RMS Multimeter. Proper use and care of this meter will provide many years of reliable 
service. Please visit our website (

www.extech.com

to check for the latest version of this 

User Manual and Customer Support. 

FEATURES 

 

True RMS responding Auto/Manual Range DMM 

 

6000 count (3-3/4 digit) backlit LCD 

 

Measure AC/DC Voltage and Current, Frequency, Duty Cycle, Capacitance, Continuity, 
Diode, and Temperature (Type-K thermocouple) 

 

Non-contact voltage detection 

 

Accepts external clamp adaptor input  

 

Data Hold 

 

MAXIMUM, MINIMUM, and MAX minus MIN recording 

 

Relative Zero mode 

 

Auto Power OFF (APO), can be temporarily disabled 

 

Wireless connectivity with Smart phones and Tablets 

 

Bluetooth® Wireless Datalogger Module (DAT12) stores over 15k readings for

 

wireless 

transmission using the ExView® W‐Series 

application

 

 

Rated CAT IV 600V, CAT III 1000V 

 

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. 

WARNING indicates that a potentially hazardous situation, which if not avoided, 
could result in death or serious injury. 

CAUTION indicates that 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) 1000 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. 

WARNING 

CAUTION 

MAX 
1000V

 

Summary of Contents for MM750W

Page 1: ...USER MANUAL Wireless Datalogging CAT IV True RMS Multimeter Model MM750W...

Page 2: ...NTS 10 AC VOLTAGE FREQUENCY DUTY CYCLE MEASUREMENTS 10 DC CURRENT MEASUREMENTS 11 AC CURRENT FREQUENCY DUTY CYCLE MEASUREMENTS 12 CLAMP ADAPTOR MEASUREMENTS AC DC 13 RESISTANCE MEASUREMENTS 14 CONTINU...

Page 3: ...W Series application Rated CAT IV 600V CAT III 1000V Safety This symbol adjacent to another symbol terminal or operating device indicates that the operator must refer to an explanation in the Operati...

Page 4: ...e operating the meter Always remove the test leads before replacing the battery or fuses Inspect the condition of the test leads and the meter itself for any damage before operating the meter Use grea...

Page 5: ...nnect the meter leads across a voltage source while the function switch is in the current resistance or diode position doing so can damage the meter 5 ALWAYS discharge filter capacitors in power suppl...

Page 6: ...Control buttons 4 Function switch 5 Positive 10A input terminal 6 COM negative input terminal 7 Positive terminal for all inputs except 10A METER BACK 1 Wireless module compartment 2 Test lead holders...

Page 7: ...or data transmission ON OFF Short press to select one of the functions available for a given rotary switch position Long press while powering up to defeat Auto Power OFF APO Short press for Data Hold...

Page 8: ...t the desired range manually before entering MAX MIN mode If the reading exceeds that range OL will appear Auto Range mode will re activate when you exit MAX MIN mode 1 Short press MAX MIN to activate...

Page 9: ...before automatically powering off after which the meter loudly beeps once as it switches off To wake the meter press the M button no need to turn the rotary switch To disable APO press and hold the M...

Page 10: ...some 240V outlets As a result the reading may show 0 volts when the outlet actually has voltage Make sure the probe tips are touching the metal contacts inside the outlet before assuming that no volta...

Page 11: ...tch to the A position and insert the red test lead banana plug into the A mA jack 3 For current measurements up to 600mA DC set the function switch to the mA position and insert the red test lead bana...

Page 12: ...or current measurements up to 600mA AC set the function switch to the mA position and insert the red test lead banana plug into the A mA jack 4 For current measurements up to 10A AC set the function s...

Page 13: ...lamp adaptor s positive lead to the meter s positive jack 5 The meter displays 1A per each mV input for example with a 3mV input the meter will display 3A 6 Take a current measurement with the externa...

Page 14: ...connect one side of the part under test so the rest of the circuit will not interfere with the resistance reading 5 Read the resistance in the display CONTINUITY CHECK WARNING To avoid electric shock...

Page 15: ...ear 0V and an open device will indicate OL in both polarities CAPACITANCE MEASUREMENTS WARNING To avoid electric shock disconnect power to the unit under test and discharge all capacitors before takin...

Page 16: ...or leave in open air 7 Read the temperature on the display Use the M button to select o C or o F NCV NON CONTACT EF VOLTAGE MEASUREMENTS WARNING Check the NCV function on a known live circuit before t...

Page 17: ...and secure with the two screws before use OBTAINING THE APPLICATION APP For iOS devices download the ExView W application from the Apple App Store For Android devices download the ExView W applicatio...

Page 18: ...nd on the user is encouraged to try to correct the interference by one or more of the following measures 1 Reorient or relocate the receiving antenna 2 Increase the separation between the equipment an...

Page 19: ...te As consumers users are legally required to take used batteries to appropriate collection sites the retail store where the batteries were purchased or wherever batteries are sold Disposal Do not dis...

Page 20: ...6 000A 0 001A 1 5 reading 5 digits 10 00A 15 secs 0 01A AC Current 600 0 A 0 1 A 0 15 reading 5 digits 6000 A 1 A 60 00mA 0 01mA 600 0mA 0 1mA 6 000A 0 001A 1 5 reading 5 digits 10 00A 15 secs 0 01A...

Page 21: ...ions consist of two elements of reading Accuracy of the measurement circuit digits Accuracy of the analog to digital converter AC Response True RMS responding Input Impedance 10M ohm for Voltage AC DC...

Page 22: ...n 2012 04 ELECTRICAL EQUIPMENT FOR MEASUREMENT CONTROL AND LABORATORY USE Part 1 General Requirements IEC 61010 1 2010 3rd Edition IEC 61010 2 033 Edition 1 0 2012 04 Approvals CE Contact Customer Sup...

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