TOS7200 35
System Setting
Auto-range (AUTO RANGE)
This setting selects auto-range or fixed range for measurements.
When AUTO RANGE is selected, the tester automatically selects the optimum range for
measurements. When fixed range is selected, the range is selected based on output
voltage and lower resistance.
Lower judgment (LOWER ON)
When the lower judgment function is set to ON, if the resistance value falls below the
lower resistance, the tester returns a FAIL judgment and ends the test.
When the lower judgment function is set to OFF, the tester does not return a FAIL
judgment, even if the insulation resistance falls below the lower resistance.
Communication rate (SPEED)
This setting selects the RS232C communication rate.
Buzzer volume (BUZZER)
The system mode allows the volume of the buzzer sounded in the event of a FAIL
judgment to be set in 10 steps of 0 to 9. The buzzer volume is set to “5” at initialization.
The volume of the buzzer sounded in the event of a PASS judgment is approximately half
of that sounded in the event of a FAIL judgment.
7-segment LED Setting
0 Fixed range
1Auto-range
← At initialization
When the fixed range is selected with the upper judgment set to ON, the UPPER ON LED
blinks, notifying the operator that a test cannot be performed. In such cases, select auto-
range or set the upper judgment to OFF.
7-segment LED Setting
0 Lower judgment is OFF
1Lower judgment is ON
← At initialization
7-segment LED Setting
0 9600 bps
1 19200 bps
← At initialization
2 38400 bps
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