Chroma 66203, User Manual

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Digital Power Meter 66203/66204 User’s Manual
4-16
Figure 4-24 Process for Setting Current Range
1. If Shunt is set to Low, the current has only 4 ranges for selection
which are 0.2Arms/0.05Arms/0.02Arms/0.005Arms. If Shunt is set
High, it also has 4 ranges for selection which are 20Arms/5Arms/
2Arms/0.5Arms.
2. The 8 current ranges are Auto when both of the Shunt and current
ranges are set to Auto.
3. No matter the shunt is set to AUTO, High, or Low, the AUTO
indicators will on if all channel’s current ranges are set to AUTO.
On the contrary, if any of the channel’s current range is set to
Manual, the AUTO indicator will be off.
4. If an over range message appears when the range is set to Manual,
press I RANGE to adjust the current range higher. Press once to
increase a range.
5. Press I RANGE continuously can see the measurement range at
present.
CAUTION
1. The maximum measureable current is 20Arms. Though the
measureable peak is 80A, the maximum allowable input DC
current is still 20Adc. It could cause dangerous if the current input
range is over.
2. If over current protection is occurred, even if the current peak is
down to within the range, the protection mechanism will not be
removed automatically. The purpose is to let the user to find the
reason for protection.