TOS8870A
SPECIFICATIONS
39
7.3 Common Speci
fi
cations
Table 7-5
Common Speci
fi
cations
Types of test
1.AUTO ACW
→
IR
Withstanding voltage test
fi
rst and insulation resistance test next
2.AUTO IR
→
ACW
Insulation resistance test
fi
rst and withstanding voltage test next
3.MANUAL ACW
Withstanding voltage test alone
4.MANUAL IR
Insulation resistance test alone
Remote Control
Test / Reset control
Low active control
Input conditions
*1
*1.
The input terminal is pulled up to +15 V supply voltage by resistor. Opening of the input terminals is equivalent to
a high level input.
• High level input voltage
11 V to 15 V
• Low level input voltage
0 V to 4 V
• Low level sweep out current
5 mA or less
• Input pulse width
20 ms minimum
Interlock
Protection is effected when INTERLOCK terminal is made open
(test is disabled).
Output signals
*2
*2.
The rating of the signal contacts is 125 VAC, 1 A, or 30 VDC, 1 A.
Loudness of the buzzer is adjustable with a knob in common for the PASS signal and FAIL alarm.
Signal Name
Conditions for Signal Generation
Type of Signals
TEST ON signal
Delivered during entire test-on period.
Make-contact signal and lamp
PASS signal
Delivered when PASS judgment is
made, for approximately 50 ms.
Make-contact signal, lamp and buzzer
ACW/FAIL alarm
Delivered continuously when FAIL
judgment of withstanding voltage test
is made.
Make-contact signal, lamp and buzzer
IR/FAIL alarm
Delivered continuously when FAIL
judgment of insulation resistance test
is made.
Make-contact signal, lamp and buzzer
READY signal
Delivered when in the READY state.
Make-contact signal
Special Test Mode
1.DOUBLE
ACTION
Test starts only when the START switch is pressed within approximately 0.5 s
after pressing the STOP switch.
Selectable with
2.PASS HOLD
The PASS state is held.
DIP switches at
3.MOMENTARY
Test is executed only during the period the START switch is kept pressed.
rear of Tester
4.FAIL ALARM
FAIL alarm and PROTECTION state cannot be reset by the remote-control
STOP signal.
Ambient Temperature and Humidity
Speci
fi
cation range
5
˚
C to 35
°
C /20 % to 80 % RH
Operable range
0
˚
C to 40
°
C /20 % to 80 % RH
Storage range
-20
˚
C to 70
°
C /80 % RH or less
