Operation Manual
2
6  MX670 / MX675 
3
.6  MAX MIN function (500 ms) 
To  activate  the  MAX  MIN  function,  press  on  the  MIN MAX 
PEAK  button.  The MIN value is then displayed. (the MIN 
symbol is  displayed  steady;  the  MAX symbol is  displayed 
flashing) 
By pressing again on the key, the MAX value will be displayed 
(the MIN symbol is displayed flashing; the MAX symbol  is 
displayed and steady). 
By pressing the key again, the clamp returns to normal mode. 
3.7  BACKLIGHT Function 
By pressing the 
 button, the backlight 
of the
 display  goes 
on, press again, it goes off. 
The "auto power off" function activates after 3 minutes. 
3.8  DISPLAY Function 
When  measuring  voltage  or  AC  current,  pressing  the 
DISPLAY key replaces the nature 
of the
 secondary display by 
the  signal  frequency 
of  the
  main  display.  Pressing  again 
returns to the previous display. 
In  temperature  measurement,  pressing  the  DISPLAY  key 
switches  the  displays  in  degrees  Celsius  and  degrees 
Fahrenheit 
of the
 measured temperature. 
4  OPERATION 
4.1  AC voltage measurement 
•  Position the switch on V  . 
Connect the red test lead to the 
"+"  terminal  and  the  black  test 
lead to the "COM" terminal. 
Put  the
  touch  prods  in  contact 
with  the
  measurement  points 
under AC voltage. 
Read  the  result  of  the 
measurement on the display. 










