TOS5051A/5050A
4-9
Chap
.4
Descr
iption of F
ront and Rear P
anel Items
If you hold down the key, increment/decrement repeats automatically.
• Because the UPPER and LOWER cutoff currents can be set independently, it is
possible that the latter is set to a value higher than the former. If such setting is
used and the pass/fail judgment function for the LOWER cutoff current is ON,
“mA” (unit of current measure) blinks and the “READY” message disappears to
indicate that such test condition is not allowed. The READY status resumes if the
LOWER cutoff current is set at a value lower than the UPPER cutoff current or if
the pass/fail judgment function for the LOWER cutoff current is turned OFF.
On the TOS5051A, these keys are used to set the upper and lower cutoff currents
for AC and DC test modes. However, the settings of cutoff currents for the AC
mode and DC mode, are independent.
• When you turn OFF the POWER switch immediately after you have changed the
cutoff current, no setting value may be stored. Wait for
fi
ve seconds or more after
the setting change, and then turn OFF the POWER switch.
[13] CUTOFF CURRENT UP/LOW key
The key selects the upper or lower cutoff current. If you press the key while holding
down the SHIFT key, the lower pass/fail judgment function is turned ON or OFF.
The key is enabled when the tester is in the READY status (“READY” is lit) and the
“KEYLOCK” message is OFF. It is disabled when in the TEST-ON status (“TEST”
is lit) or when the tester is delivering the result of judgment (when “PASS” or
“FAIL” is lit).
key
This key increments the cutoff current setting.
The setting is shown on the CURRENT display (digital ammeter).
key
This key decrements the cutoff current setting.
The setting is shown on the CURRENT display (digital ammeter).
UPPER/LOWER cutoff current range
Basic resolution
Display format
0.1 mA to 9.9 mA
0.1 mA
X.X mA
10 mA to 110 mA
1 mA
XXX mA
Model
AC mode test
Upper cutoff current range
Lower cutoff current range
TOS5051A
0.1
mA
to 110 mA
0.1 mA to 110 mA, OFF
TOS5050A
Model
DC mode test
Upper cutoff current range
Lower cutoff current range
TOS5051A
0.1
mA
to 11 mA
0.1 mA to 11 mA, OFF
TOS5050A
—
—
NOTE
Содержание TOS5050A
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