Hioki Power HiTester 3193, Instruction Manual

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7.7 Measuring the Load Factor
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Timer time
Reset
Hold
Active power
Time
Auto stop
Display value
Start Stop time
Interval time
SHIFT
START
/STOP
START
/STOP
Auto stop
W av
Load factor ( LF ) =
───
×
100%
W max
Total integration value (+)
W av =
───────────────
Timer time or real-time control time
Maximum value of integration value for interval
W max =
──────────────────
Interval time
W av : Total averaging
W max : Maximum value of averaging for interval
NOTE
7.7 Measuring the Load Factor
When the timer or real-time control time setting is combined with the
interval time, the load factor (
LF ) can be measured. The load factor result
appears in the integration display.
1. Set the interval time, and timer time or
real time control time.
See Section 7.2, "Setting the Control
Time."
2. Press the
START/STOP
key to start.
During operating, the load factor up to
that point is shown.
3. To reset the measured value, press the
SHIFT key and then press the
START/STOP key. ("-----" is displayed.)
･ The load factor is calculated from the positive value integration only.
Therefore, the load factor does not match the normal average. The negative
integration value is also taken as zero.
･
On the screen, the load factor only is displayed.
･
If no interval time is set, the load factor is not displayed.
･
When combined with the floppy disk drive or printer, the maximum average
power (Wmax) and load factor (LF) recorded during operation for each
interval are output.
･
This function can operate simultaneously with integration.
･ Once load factor measurement starts, items for which auto ranging is set
have their ranges fixed from the start time. Set the range so that it will not
be exceeded before beginning load factor measurement.
･ During load factor measurement (even "on standby" under real-time control),
all settings except changing screens are disabled.
･
After load factor measurement ends, until reset, it is not possible to change
settings.
･
When combined with a timer setting, after the timer period has elapsed, if
the process is started again the load factor is calculated including the data
for the previous timer period.