Hioki 3155-01, Instruction Manual

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1.3 Measuring Mode of the 3155
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Measurement network types Available measuring modes
9497 NETWORK B Earth leakage current Enclosure leakage current
Patient leakage current Patient leakage current
Patient leakage current Patient auxiliary current
Low resistance measurement
9498 NETWORK C Earth leakage current Enclosure leakage current
Low resistance measurement
9499 NETWORK D Earth leakage current Enclosure leakage current
Low resistance measurement
NOTE
Medical outlet
3-P plug
Patient leakage current
Earth
Earth leakage current
Signal input and
output parts
Faulty ME equipment
Protective earth conductor
Patient leakage current
Enclosure leakage current
ME equipment
Patient leakage current
Faulty ME equipment
Leakage current route of the medical electrical equipment (ME equipment)
1.3 Measuring Mode of the 3155
The 3155 has been designed with the idea in mind that leakage current
testing is the most important of all tests for electrical safety. In particular, for
medical electrical equipment, leakage current has the greatest potential for
harming human beings, and is therefore strictly regulated even with regard to
single fault conditions. Through the use of measurement networks B, C and
D, the 3155 can perform leakage current testing for all types of electrical
equipment from ordinary electrical equipment to medical electrical equipment.
For details, refer to Section 3.1, "Measurement Networks."
Setting for normal condition or single fault conditions is possible. The polarity
of the power source can also be set.
The voltage input from the power inlet is directly output to the auxiliary
outlet for the equipment to be measured.
When testing with the 110% power voltage, input it to the power inlet.
For details, refer to Appendix 2, "Leakage Current Measurement."