Hitachi CHROMASTER 5160 Instruction Manual page 711

Electric shock due to improper grounding
This instrument is designed to meet the basic insulation
stipulated in the international standard IE C61010-1.
To prevent an electric shock hazard due to improper
grounding, provide a proper grounding connection.
(a) Be sure to use the grounded 3P power cable, which
is supplied as a standard accessory for the
instrument. The use of a different type of power
cable may result in an electric shock hazard.
Connect the 3P power cable to a grounded 3P power
outlet as a rule.
(b) If a grounded 3P power outlet is not available, use a
3P table tap with a grounding wire or a 3P-2P
adapter. In this case, be sure to provide proper
grounding connection.
For grounding connection, use a screw having a
diameter of M4 or larger and a turn count of 3 or
more in threading, and a wire having a thickness of
1.25 mm.
(6) Grounding Terminal
Shall have a grounding construction for a ground resistance
of 100 Ω or less.
APPENDIX 1 - 4
WARNING