Hioki CM4371 Mode D'emploi page 67

12
Frequency (same for all models)
Frequency is displayed at the same time as the AC current/AC voltage (the frequency is shown on the sub-
display when performing ACA/ACV detection with the auto A/auto V function or when using the ACA/ACV
function, and on the main display when using the Hz function).
Only auto-range operation is available when performing frequency measurement using the ACA/ACV function
(the RANGE key is used to switch the current/voltage range).
Minimum detectable current/voltage:
AC voltage 10% of each range's f.s. value
AC current 20.00 A range 4.00 A or more (CM4371, CM4372)
600.0 A range 20.0 A or more (CM4371, CM4372)
600.0 A range 40.0 A or more (CM4373, CM4374)
2000 A range 200 A or more (CM4373, CM4374)
In the following circumstances, the instrument will display
range:
• Less than 1 Hz.
• If the AC current or AC voltage is less than the minimum detectable current or voltage or outside the input
range.
• If there is a superposed DC component when performing ACA/ACV detection with the auto A/auto V
function.
[----Hz] as the value is outside the measurement
Accuracy Table
63