Kikusui TOS5050A, Operation Manual, Page: 44 / 120

4-10 TOS5051A/5050A
1. When the key alone is pressed
Each time you press the key, the upper or lower cutoff current is selected and
the “UPPER” message or the “LOWER” message appears.
The “UPPER” message means that the upper cutoff current has been selected,
the value is displayed on the CURRENT readout, and you can adjust the value
with the
keys.
The “LOWER” message means that the lower cutoff current has been selected,
the value is displayed on the CURRENT readout, and you can adjust the value
with the
keys.
On the TOS5051A, these keys are used to set the upper and lower cutoff cur-
rents for both AC and DC test modes. However, the settings of cutoff currents
for the AC mode and DC mode are independent.
2. When the UP/LOW key is pressed while holding down the SHIFT key
Each time you press the key, the “LOWER ON” message appears or disap-
pears indicating that the lower pass/fail judgment function has been enabled or
disabled.
On the TOS5051A, the lower pass/fail judgment function is turned ON of OFF
with the key. This test condition is applied to both AC and DC test modes--that
is, the setting for one mode applies automatically to the other mode also.
[14] TIMER keys
These keys are used to increment/decrement the test time. The keys are enabled
when the tester is in the READY status (“READY” is lit) and the “KEYLOCK”
message is OFF. They are disabled when in the TEST-ON status (“TEST” is lit) or
when the tester is delivering the result of PASS/FAIL judgment (when “PASS” or
“FAIL” is lit).
If you press either key alone, the rate of increment/decrement follows the basic res-
olution shown below. If you press it while holding down the SHIFT key, the rate of
increment/decrement is ten times the basic resolution.
If you hold down the key, increment/decrement repeats automatically.
• On the TOS5051A, the keys are used to set the test period for both AC and DC
test modes. This test condition applies to both AC and DC test modes.
• When you turn OFF the POWER switch immediately after you have changed the
test time, no setting value may be stored. Wait for fi ve seconds or more after the
setting change, and then turn OFF the POWER switch.
key
This key increments the test period. The setting is shown on the
TIME display.
key
This key decrements the test period. The setting is shown on the
TIME display.
Test period setting range Basic resolution Display format
0.5 s to 99.9 s, OFF
0.1 s
XX.X s
100 s to 999 s, OFF 1 s
XXX s
NOTE