Omron KM1 User Manual page 6

Display of warning
Caution
Ignition may occur and this may cause damage to objects.
Make sure you tighten terminal screws with standard tightening torque.
Recommended tightening torque of terminal screw: 0.69 to 0.88 N m
After the screw is tightened, ensure that it is not tilted.
Explosion may cause a medium or minor degree of injuries or physical loss or
damage. Do not use the product at a place where it is exposed to flammable or
explosive gas.
Breakage or explosion may occur.
When using the product, put the supply voltage and load in the specified or rated
range.
Breakage or explosion may occur.
The portion between the voltage input circuit and the CT secondary side circuit is
not insulated. If the dedicated CT is grounded, the portion between the voltage
input circuit and the CT secondary circuit is short-circuited due to wrong wiring.
Do not ground the dedicated CT to prevent failures.
This product, which uses a dedicated CT, can make normal measurements with
the CT not grounded.
Electric shocks may occur.
When the CT is connected, disconnect voltage inputs connected to the power
supply and system of the main body.
Electric shocks may occur.
When power is distributed, do not touch the terminals.
Electric shocks may occur.
For the primary side electric wire where the CT is clamped, be sure to use a
covered electric wire, which has been at least basically insulated.
When clamping is done for a conductive object, such as bus bar, ensure the basic
insulation, at least, by covering it with insulating material, etc.
Electric shocks, minor degree of injuries, ignition, or equipment failures may
occur.
Do not perform assembling, repairing, or remodeling.
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