87V MAX 
Users Manual 
 ii 
Capacitance Measurements .....................................................................................   19 
Diode Tests ...............................................................................................................   20 
AC or DC Current Measurements .............................................................................   22 
Frequency Measurements ........................................................................................   25 
Duty Cycle Measurements ........................................................................................    27 
How to Determine Pulse Width .................................................................................   28 
Bargraph ........................................................................................................................   28 
Zoom Mode (Power Up Option Only) ........................................................................    29 
Uses for the Zoom Mode ..........................................................................................   29 
HiRes Mode ...................................................................................................................   29 
MIN MAX Recording Mode ............................................................................................   30 
Smooth Feature (Power Up Option Only) ......................................................................   30 
AutoHOLD
 
Mode ...........................................................................................................   32 
Relative Mode ................................................................................................................  32 
Maintenance ..................................................................................................................  33 
General Maintenance ................................................................................................   33 
Fuse Test ..................................................................................................................   33 
How to Replace the Batteries....................................................................................   34 
How to Replace the Fuses ........................................................................................    35 
Service and Parts ..........................................................................................................   35 
General Specifications ...................................................................................................   39 
Detailed Specifications ..................................................................................................   41 
AC Voltage ................................................................................................................   41 
DC Voltage, Conductance, and Resistance ..............................................................    42 
Temperature .............................................................................................................   43 
AC Current ................................................................................................................    43 
DC Current ................................................................................................................   44 
Capacitance ..............................................................................................................    44 
Diode ........................................................................................................................  44 
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