Manual RMO-H
M-RH00NN-300-EN 5
• Do not use the RMO-H without the extra protective ground cables supplied with the RMO-H. It must
never be operated in a non-grounded configuration as this may result in an electrical shock to the
user or damage the RMO-H. Always establish this connection first before establishing any other
connections and remove this connection as the very last one.
1.2 Intended Use
The Micro Ohmmeter RMO-H is a portable, handheld device designed for measuring contact resistances
of non-inductive test objects used in the electric power industry or similar branches.
It is employed for resistance measurement during manufacturing, commissioning and testing of:
• High, middle and low voltage circuit breakers,
• High, middle and low voltage disconnecting switches,
• High-current bus bar joints,
• Cable splices,
• Welding joints,
• Groundings.
CAUTION: Any use of the RMO-H other than mentioned above is being
considered improper and will void the warranty and exempt the
manufacturer from its liability for repair or exchange.