10-2 TOS5051A/5050A
10.1 Basic Performance
1
Pay attention to the limitations on AC output voltage delivery time as follows:
The heat dissipation of the high voltage generator section of the tester is one-
half of the normal wattage with respect to the rated output from the viewpoints
of size, weight, and cost of the tester. Due to this, be sure to operate the tester
within the limits shown in the below tables. If you operate the tester exceeding
these limits, the thermal fuse in the tester may blow out.
Item TOS5050A TOS5051A
Test voltage Applied voltage AC AC/DC
0 kV to 2.5 kV/0 kV to 5 kV 0 kV to 2.5 kV/0 kV to 5 kV
AC
Output rating
1
500 VA/5 kV, 100 mA
(with nominal line voltage)
Transformer rating 500 VA
Short-circuit current
2
200 mA or more
(when the output voltage is 900 V or more at
2.5 kV range or 1.3 kV or more at 5 kV range)
Waveform
3
AC line voltage waveform
Voltage regulation (with
nominal line voltage)
15 % or better
(against change from maximum rated load to no load)
Switching With zero-turn-on (zero-start) switch
DC
Maximum output rating
4
—
50 W/5 kV, 10 mA
(with nominal line voltage)
Ripple
—
At 5 kV, no load:
50 Vp-p typical
—
At rated max. output:
100 Vp-p typical
Voltage regulation (with
nominal line voltage) —
3 % or better
(against change from maxi-
mum rated load to no load)
Output
voltmeters
Analog Scale AC AC/DC common
5 kV fs (no mirrors) 5 kV fs (no mirrors)
Class JIS Class 2.5
Accuracy ±5 % fs
AC indication Mean-value response, rms-value graduation
Digital Full scale 2.5 kV/5 kV fs
Accuracy ±1.5 % fs
AC response Mean-value response, rms-value display
(Response time 600 ms)
Ammeter Digital Accuracy ±(5 % + 20 μA) of upper cutoff current
AC response Mean-value response, rms-value display
(Response time 450 ms)
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