User`s guide

Making Measurements 2
Testing for Continuity
U1273A/U1273AX User’s Guide 55
The beeper will sound as a continuity indication. Press
to switch between normal open ( ) and normal close ( )
contacts.
• Normal open: Circuit is normally open, the beeper will
sound when a short is detected.
• Normal closed: Circuit is normally closed, the beeper will
sound when an open is detected.
Figure 2-15 Continuity operation
3.0000 MΩ <120 ± 60 kΩ
30.000 MΩ <120 ± 60 kΩ
300.00 MΩ <120 ± 60 kΩ
Table 2- 1 0 Threshold resistance values (continued)
Measuring range Threshold resistance
Exit
Dual
Press to enable the
continuity test function.
Press to switch between the
normal open and normal closed
states.
S
h
i
f
t
V
i
e
w
E
s
c
Exit
Dual
Start to capture
Circuit complete.Short detected, beeper sounds.
Open detected, beeper sounds.Circuit open.