Kikusui TOS5101 - Page 52

Chapter 4 DESCRIPTION OF FRONT AND REAR PANEL ITEMS
4-14
13
UP/LOW
key
The key selects the upper or lower cutoff current. If you press the key while keeping the
SHIFT
key
16
pressed, the lower pass/fail judgement function is turned ON or OFF.
The
UP/LOW
key is enabled when the Tester is in the READY status (status that the
READY message
2
8
appears) and the KEYLOCK message
3
3
has disappeared. It is disabled
when in the TEST-ON status (status that the TEST message
2
9
appears) or when the Tester is
delivering the result of judgement (when the PASS message
3
0
or the FAIL message
3
1
appears).
1. When
UP/LOW
key alone is pressed
Each time as you press the
UP/LOW
key, the upper or lower cutoff current is selected and
the UPPER message
2
3
or the LOWER message
2
4
appears.
The UPPER message
2
3
means that the upper cutoff current has been selected, the value
is displayed on the CURRENT readout
2
2
, and you can adjust the value with the
keys
12
.
The LOWER message
2
4
means that the lower cutoff current has been selected, the value
is displayed on the CURRENT readout
2
2
, and you can adjust the value with the
keys
12
.
For the AC/DC models (TOS5101 and TOS5051), the upper and lower cutoff currents for
both AC and DC modes of tests can be selected with this key. The settings of cutoff
currents for the AC mode and DC mode, however, are mutually independent.
2. When
UP/LOW
key is pressed while keeping
SHIFT
key
16
pressed
Each time as you press the
UP/LOW
key, the LOWER ON message
2
5
appears or
disappears indicating that the lower pass/fail judgement function has been brought into or
out of effect.
For the AC/DC models (TOS5101 and TOS5051), the lower pass/fail judgement function
is turned ON of OFF with the
UP/LOW
key. This test condition is applied to both AC and
DC modes of tests — that is, the setting for one mode applies automatically to the other
mode also.