Spider DSA User’s Manual
68
Spider-20/20E LED Light
Red light ON indicates that the device is ON;
Red light OFF indicates that the device is OFF.
Green light ON indicates that EDM is in operation; Green
light OFF indicates that EDM is not in operation.
When the battery percentage is higher than 50%, the red
light is OFF.
When the battery percentage is between 20% and 50%, the
red light is ON.
When the battery percentage is lower than 20%, the red
light is flashing.
When the device with battery installed and is charging, the
light is red.
When the battery is fully charged, the light is green.
When the device is without battery installed and external
power cord is connected, the light status is undefined.
Spider-20: When the device is connected to the PC via Wi-
Fi, the light is green; otherwise, the light is OFF.
Spider-20E: When the device is connected to the PC via
Ethernet cable, the light is green; otherwise, the light is
OFF.
Input Connections
Unlike the Spider-80X and the Spider-81 series, the Spider-20 has its unique
input connection design along with ultra-portability and wireless features. It has
4 analog input channels with isolated BNC connector and the input range is ±10 V
with single-ended and IEPE input type.
Figure 19. Spider-20 Input Channels
The input channels of Spider-80X and Spider-81 series are very similar in
hardware design except the number of channels. Typically, the Spider-80X and
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