1
Introduction
28
Keysight U1241C/U1242C User’s Guide
Each additional press of
sets the multimeter to the next higher range,
unless it is already in the highest range, at which point the range switches to the
lowest range.
Alerts and warnings during measurement
Hazardous voltage indication
The multimeter will display the hazardous voltage ( ) symbol as an early
precaution when the measured voltage is:
This symbol will also be displayed when the input signal exceeds the limitation of
measuring circuit as frequency dependence.
Hazardous current indication
The multimeter will display the symbol as an early precaution when the
measured current has reached the maximum fuse rating as follows:
Range
Auto
Measurement
DC
AC
V (mV)
≥
+30 V or +OL (voltage overload)
≤
–30 V or –OL
≥
30 V or OL
Measurement
DC
AC
A
≥
+11 A or +OL (current overload)
≤
–11 A or –OL
≥
11 A or OL
μ
A/mA
≥
440 mA or +OL
≤
–440 mA or –OL
≥
440 mA or OL
CAUTION
If your measuring current is > 10 A ~ 19.999 A, you will need to lower the
current within a 30 seconds time limitation to avoid blowing the
multimeter’s fuse.
Содержание U1241C
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