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8

FUNCTION BUTTONS

ON/OFF

To Power ON the meter rotate the Function Selector switch 

2

 from the 

OFF setting to any measurement setting. To Power OFF the meter rotate 

the Function Selector switch 

2

 to the OFF setting. By default, the meter 

will automatically Power OFF after 30 minutes of inactivity. Reactivate 

meter by pressing any button. To deactivate the automatic Power OFF 

feature, power the meter ON with the SEL button

 

11

 depressed. When 

automatic Power OFF is deactivated, the 

 symbol will not be visible in 

the display. 

"SEL" (SELECT) BUTTON (FOR SECONDARY FUNCTIONS)  

The "SEL" button 

10

 activates the secondary function for each 

application accessible by the function selector switch 

2

. For current 

and voltage, it toggles between AC and DC. For the other functions, it 

switches between °F and °C, between Hz and % Duty-cycle, between 

Continuity and Resistance, and between Capacitance and Diode-test. 

The default function for each application is printed on the meter in 

white; the secondary function for each location is printed on the meter 

in orange.

"HOLD" (DATA HOLD) BUTTON

Press the "HOLD" button 

9

 to hold the measurement on the display. 

Press again to release the display and return to live measuring.

"RANGE" BUTTON 

The meter defaults to auto-ranging measurement mode 

. This 

automatically determines the most appropriate measurement range 

for the testing that is being conducted. To manually force the meter to 

measure in a different range, use the "RANGE" button 

7

.

1. Press the "RANGE" button 

7

 to manually select measurement range

(

 is deactivated on the LCD). Repeatedly press the "RANGE"

button 

7

 to cycle through the available ranges, stopping once the

desired range is reached.

2. To return to auto-ranging mode, press and hold the "RANGE" button

7

 for more than one second (

 is reactivated).

"MAX/MIN" BUTTON 

When the "MAX/MIN" button 

8

 is pressed, the meter keeps track of 

the minimum and maximum value of the measurement as the meter 

continues to take samples. The first press of the "MAX/MIN" button 

8

displays the Max value, the second press displays the Min value.
To return to normal measuring mode, press and hold the "MAX/MIN" 

button 

8

 for more than one second.      

BACKLIGHT BUTTON 

Press and hold the backlight button 

6

 for more than one second 

to turn the backlight on or off. Backlight automatically turns off after 

approximately 3 minutes.

ENGLISH

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GlobalTestSupply

.com

Find Quality Products Online at:

[email protected]

Summary of Contents for MM400

Page 1: ...MM400 DATA HOLD AUDIBLE CONTINUITY MIN MAX TEMPERATURE DIODE TEST CAPACITANCE Auto Ranging Digital Multimeter Digital Multimeter 600V 10A 40M www GlobalTestSupply com Find Quality Products Online at...

Page 2: ...0 g Calibration Accurate for one year Standards Conforms to UL STD 61010 1 61010 2 030 61010 2 033 Certified to CSA STD C22 2 61010 1 61010 2 030 61010 2 033 IEC EN 61010 1 61010 2 030 61010 2 033 613...

Page 3: ...0 0 A 0 1 A 1 5 5 digits 4000 A 1 A 1 8 5 digits 40 00mA 10 A 400 0mA 100 A 10A 10mA 3 0 7 digits DC Current A and mA 400 0 A 0 1 A 1 0 5 digits 4000 A 1 A 1 5 5 digits 40 00mA 10 A 400 0mA 100 A 10A...

Page 4: ...Hz 1 5 5 digits 99 99Hz 0 01Hz 999 9Hz 0 1Hz 1 3 5 digits 9 999kHz 1Hz 50 00kHz 10Hz Sensitivity 8V RMS Maximum Input 600V DC or 600V AC RMS DUTY CYCLE 0 1 to 99 9 0 1 1 2 2 digits Pulse width 100us 1...

Page 5: ...ng electrical storms or in wet weather Do not use the meter or test leads if they appear to be damaged Use only with CAT III or CAT IV rated test leads Ensure meter leads are fully seated and keep fin...

Page 6: ...mproper use of this meter can lead to risk of electrical shock Follow all warnings and instructions detailed in this manual SYMBOLS ON LCD H Data Hold Audible Continuity Diode Auto Ranging AC Alternat...

Page 7: ...F button 2 Function selector switch 7 RANGE button 3 10A jack 8 MAX MIN button 4 COM jack 9 HOLD Data Hold button 5 V jack 10 SEL Select button NOTE There are no user serviceable parts inside meter ww...

Page 8: ...asurement on the display Press again to release the display and return to live measuring RANGE BUTTON The meter defaults to auto ranging measurement mode This automatically determines the most appropr...

Page 9: ...CATIONS Ensure the test lead shield is pressed firmly in place Failure to use the CAT III CAT IV shield increases arc flash risk TESTING IN CAT II MEASUREMENT LOCATIONS CAT III CAT IV shields may be r...

Page 10: ...o be tested to measure voltage The meter will auto range to display the measurement in the most appropriate range NOTE If appears on the LCD the test leads are being applied to the circuit in reverse...

Page 11: ...into 10A jack 3 and BLACK test lead into COM jack 4 and rotate function selector switch 2 to the 10A AC DC setting For mA AC DC currents 400mA Insert RED test lead into V jack 5 and BLACK test lead i...

Page 12: ...function selector switch 2 to the Continuity Resistance setting NOTE The meter defaults to Continuity testing in this mode To enter Resistance testing mode press the SEL button 10 once The Resistance...

Page 13: ...isible on the display If not press the SEL button 10 once 2 Remove power from circuit 3 Test for continuity by connecting conductor or circuit with test leads If resistance is measured less than 50 an...

Page 14: ...asurement in the most appropriate range DIODE TEST 1 Insert RED test lead into V jack 5 and BLACK test lead into COM jack 4 and rotate function selector switch 2 to the Capacitance Diode setting NOTE...

Page 15: ...st leads across the circuit TEMPERATURE 1 Insert K type thermocouple into the V 5 and COM 4 jacks and rotate function selector switch 2 to the Temperature setting NOTE The meter defaults to Fahrenheit...

Page 16: ...5 500mA 600V fast blow Klein Cat No 69033 10A jack 3 10A 600V fast blow Klein Cat No 69032 3 Replace back housing and fasten securely with screws To avoid risk of electric shock disconnect leads from...

Page 17: ...of storage in extreme conditions exceeding the limits mentioned in the General Specifications section allow the meter to return to normal operating conditions before using DISPOSAL RECYCLE Do not plac...

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