
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