HP 3468A Operator's Manual page 22

The 12 display annunciators, located along the bottom of the display, are used to
indicate the state of the 3468A.
Table 2-3. Annunciators
Indicatios
Sra The SRQ annunciator indicates that the 3468A is trying to request service from
the controller. Refer to Chapter Ill and Chapter IV.
LSTN The LSTN (LISTEN) annunciator turns on when the 3468A is addressed to listen
via the HP-IL.
TLK The TLK annunciator means that the 3468A has been addressed to talk via the
HP-IL.
RMT RMT indicates that the 3468A is under remote control. The front panel keyboard
is inactive except for the LOCAL and SRQ keys (see LOCAL and LOCAL
LOCKOUT in the next chapter).
MATH MATH is not used on the 3468A.
AZ OFF The Autozero feature of the 3468A is disabled.
20 The 34684 is in the 2-wire ohms mode.
4n The 3468A is in the 4-wire ohms mode.
M RNG This annunciator indicates that the 3468A is in the manual ranging mode; auto
range is inactive.
S TRIG Single trigger means that the internal trigger is disabled. The voltmeter idles until
either the single trigger key is pressed again, or a TRIGGER message is received
over the Loop.
CAL The CAL annunciator will turn on if the 3468A requires calibration in the selected
range and function.
SHIFT 'This annunciator indicates that the [SHIFT] key has been pressed, enabling the
shifted functions. The annunciator will go off when either the function is executed
or the [SHIFT] key is pressed again.
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