TOS7200
37
Key Lock
The key lock prevents accidental changing of the test conditions.
Press the and keys simultaneously to involve key-locked status, causing the KEYLOCK
LED to light up. In the key-locked status, only the START and STOP switches are valid.
To cancel key lock, press the and keys simultaneously once again.
Invalid Settings
If any of the invalid settings specified below are made, the tester causes the associated LED to
blink, notifying the operator that an invalid setting has been made. While that LED is blinking,
a test cannot be conducted.
OVER 1.1 mA
If the value obtained by dividing the test voltage by the lower resistance exceeds 1.1 mA,
the LOWER LED blinks.
UPPER ≤ LOWER
When both the upper and lower judgments are set to ON, setting the upper resistance to a
value equal to or less than the lower resistance causes the UPPER LED to blink.
TEST ≤ WAIT
When the timer function is activated, setting the test duration to a value equal to or less
than the wait time causes the TIMER ON LED to blink.
FIX
∩
UPPER ON
If the fixed range is selected with upper judgment is activated, the UPPER ON LED blinks.
MEMORY
VOLTAGE
RESISTANCE
TIMER
MEMORY
VOLTAGE
RESISTANCE
TIMER
KEYLOCK
LED
Press simultaneously
Содержание TOS7200
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