User Manual

KEW6310 14.3 Auto-ranging
KEW6310 14.4
14.3 Auto-ranging
Auto-ranging fu nction is avai lable at W, Wh, DEMAND and WAVE Ranges. Curren t va lues in w ide ra nge
can be measured with this function; it is helpful when load capacitances vary dramatically according to
day and time .
Range : 2-range-auto/ max and min range of each Clamp sensor
Range shi f t t o uppe r one w hen cre st va lues equal to tw ice as mu ch as F.S (sine wave) at min ra nge
is detected.
Accurate values may not be obtained when substantial fluctuations in 1 sec.
14.4 Operation at AC power interruption
When an AC power supply is interrupted during recording, KEW6310 operates as follows.
Pow er supply : resto res to batte ry when ba tterie s have been inst al led
Measurement data : saved until the last interval before an interruption
Operation after interruption : recording restarts with preset settings if a power is interrupted during
recording. In this case, occurrence of interruption is recorded with time and date information. (STOP)
Restoration is also recorded as well. (START)
Instrument doe sn ’ t power on again a utomatically w hen a power inte rru ption occurs and restores other than
recording period.
Files in CF card or Internal memory may be destroyed if an AC power is interrupted while accessing to them.
Use of AC power supply and batteries at the same time is recommended if power interruptions are concerned.