RIGOL
User’s Guide for DM3058
to mains in such devices (up to 600 VAC), or to the branch outlet itself. However,
DM3058 may not be used with its HI and LO inputs connected to mains in
permanently installed electrical devices such as the main circuit-breaker panel,
sub-panel disconnected boxes, or permanently wired motors. Such devices and
circuits are subject to overvoltage that may exceed the protection limits of DM3058.
NOTE：Voltages above 600 VAC may be measured only in circuits that are isolated
from mains. However, transient overvoltage is also present on circuits that are
isolated from mains. DM3058 is designed to safely withstand occasional transient
overvoltage up to 4000Vpk. Do not use this equipment to measure circuits where
transient overvoltage could exceed this level.
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