Specifications

TOS9220/9221 Specifications 6-1
Chapter 6 Specifications
This chapter describes the electrical and mechanical specifications for the scanner.
Electrical performance
*1 When the contact check function is activated on the TOS9220/9201 tester, the tester conducts a con-
tact check up to the output terminals of the TOS9220 scanner.
Measurement accuracy achieved when the scanner and the TOS9220/9201 tester are connected:
In an AC withstanding voltage test, a current of approx. 22 μA/kV flows per scanner due to stray
capacitance in the scanner in comparison with use of the TOS9220/9201 tester alone. Note that
this current may contribute to errors in current measurements conducted by the TOS9220/9201
tester.
Item TOS9220 TOS9221
Maximum rating
voltage
AC 5.0 kV
DC 6.0 kV
Number of channels 4 (Each channel is settable to HIGH, LOW, or OPEN.)
Maximum number of scanners
connected
4 scanners
Channel numbers are determined in order of connection to the
TOS9200/9201 tester.
1
st
scanner CH1 to CH4 2
nd
scanner CH5 to CH8
3
rd
scanner CH9 to CH12 4
th
scanner CH13 to CH16
Contact check function None*1 Provided
Lamps and LEDs POWER Lights as it is interlocked with the POWER switch of the TOS9200/9201
tester
DANGER Lights as it is interlocked with the DANGER lamp of the TOS9200/9201
tester
CHANNEL Lights during a test at each channel
HIGH: red; LOW: green; Under contact check: orange
Power
require-
ments
Nominal voltage range
(allowable voltage range)
100 V to 120 V AC/200 V to 240 V AC
(85 V to 132 V AC/170 V to 250 V AC) Automatic switching
Power
consumption
In READY
state
Approx. 12 VA
During test 40 VA maximum
Allowable frequency range 47 Hz to 63 Hz
Insulation resistance 30 MΩ or more (500 V DC) [between the AC LINE and chassis]
Withstanding voltage 1 390 V AC, 2 seconds, 10 mA or less
[between the AC LINE and chassis]
Earth continuity 25 A AC/0.1 Ω or less