Instructions
6.Use the Multimeter (Optional) 
103 
6. Use the Multimeter (Optional) 
Input Terminals 
The input terminals are on the back of the oscilloscope, which marked as 10A, mA, COM, 
. 
IEC II Overvoltage Protection. 
In order to prevent electric shock, the multimeter provides overvoltage protection for line-voltage 
mains connections meeting both of the following conditions: 
1.  The 
 and COM input terminals are connected to the mains under 
Measurement Category II conditions, defined below.  
2.  The mains are limited to a maximum line voltage of 600 VAC.  
Warning: IEC II includes electrical devices connected to mains at an outlet on a branch circuit. Such 
devices include most small appliances, test equipments and other devices that inserted into a branch 
socket. The multimeter may be used to make measurements with the 
 and COM inputs 
connected to mains in such devices (up to 600 VAC), or to the branch socket itself. However, the 
multimeter  may be used with its 
 and  COM  inputs connected to mains from neither 
permanently installed electrical device such as a main circuit-breaker panel, sub-panel disconnected 
box nor wired motors. Such devices and circuits are readily to beyond the protection from the 
multimeter. 
Note: Voltages above 600 VAC may be measured only in circuits that are isolated from mains. 
However, a transient overvoltage is also present in such circuits. The multimeter was designed to safely 
withstand occasional transient overvoltage up to 2000 Vpk. Do not use this device to measure circuits 
whose transient overvoltage may exceed this level.
DMM Menu   
Push DMM button  on the front panel to enter/exit the multimeter function. The button 
backlight will be lighted when the multimeter function is enabled.  
Figure 6-1 Multimeter Button 
The bottom menu of multimeter is as below: 
Menu 
Setting 
Description 










