Kikusui KHA1000, Operation Manual, Page: 161 / 274

KHA1000
6-5
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“measurement time = 1 minute.” Normally, therefore,
set it to 60 seconds.
Set the Pst measurement count or d measurement count for Plt (long-time flicker
value) evaluation.
• Pst Measurement Count: Selecting Pst Auto at F1 of menu page 1/3 lets you
enter a value. The setting range is 1 to 12.
• d Measurement Count: Selecting Manual at F1 of menu page 1/3 lets you enter
a value. The setting range is 3 to 24.
Although the standard specifies “Plt measurement time = 2 hours,” the actual
measurement time is decided according to the operating cycle time of the EUT.
Example:For equipment with an operating cycle of 45 minutes, set the Pst
Measurement Count to 5 and the Pst Measurement Time (s) to 10
minutes.
Page 6-20
If the measured value exceeds the set voltage range or current range (overrange), an error
message will be displayed and the measurement will be terminated. However, the data
up to the point when the overrange occurs can be analyzed. The judgment will be FAIL.
6.1.3 dmax Limit Value, Margins and Printout of Setting Values
Menu
Set the dmax (maximum relative voltage change) limit value for d measurement
(voltage fluctuation test).
The limit value varies depending on the EUT.
F4
Pst Measurement
Count
Numeric
value
d Measurement
Count
F5 Overrange Abort Enabled
See
F 1 F 1
F 2 F 2
F 3 F 3
F 4 F 4
F 5 F 5
F 6 F 6
Page 3/3
F1
d max Limit
Value
4 % 6 % 7 %
4 % No additional conditions
6 %
Manual switching equipment. Manual switching equipment with switching
frequency more than twice per day, which assumes delayed restart (20-
30 seconds delay or more) or manual restart.
7 %
Equipment (dryer, vacuum cleaner, electric drill, lawn mower, mixer, etc.)
with switching during operation. The equipment is automatically switched
on and off once or twice per day or intended for manual switching, and is
subjected to delayed restart (20-30 seconds delay or more) or manual
restart after power off.