Chroma 66203, User Manual

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Operation
4-41
2. The maximum voltage difference allowed for EXT input terminal to
Ground is 600V.
HV
Figure 4-63 HV Setup Screen
The maximum voltage measurement range of the 66203/66204 Digital Power Meter is
600Vrms (CF=2). If the measurement voltage is higher than the range, it can use the option
A662012 HV Measurement Kit to work with the power meter for measurement. The HV
Measurement Kit can increase the range up to 1200V, but the frequency applicable range is
limited to DC and 47Hz~63Hz. To ensure the measurement spec, the HV function of
66203/66204 can only work with the option A662012. Please see Appendix F for the
specification of A662012.
Following diagram shows the wiring of A662012 HV Measurement Kit for PV inverter efficient
measurement.
Figure 4-64 HV Measurement Kit Wiring Diagram