1
Getting Started
The Display at a Glance
Figure 1-6 VFD full display with all segments illuminated
The highly visible vacuum fluorescent display (VFD) annunciators are
described in
Table 1-1 Display annunciators
10
Table 1-
Annunciator
Description
Primary display
S
Reading rate: Slow. Not applicable for the U3401A.
M
Reading rate: Medium. Not applicable for the U3401A.
F
Reading rate: Fast. Not applicable for the U3401A.
PEAK
Peak measurement. Not applicable for the U3401A.
HOLD
Data hold
MIN
MinMax math operation: Minimum value shown on the primary display
MAX
MinMax math operation: Maximum value shown on the primary display
REL
Relative value
dBm
Decibel unit relative to 1 mW
4 2 W
4-wire/2-wire resistance. Not applicable for the U3401A.
Diode test
Audible continuity test for resistance
AUTO
Autoranging
DC
Direct current
AC
Alternating current
DCAC
AC + DC
1.
U3401A User's and Service Guide