Features and Functions 2
Keysight U1241B and U1242B User’s and Service Guide 45
Alerts and Warning During Measurement
Overload Alert
The multimeter provides an overload alert for voltage measurement in both auto
and manual range modes. The multimeter beeps periodically once the measuring
voltage exceeds 1100.0 V. For your safety, please be aware of this alert.
Input-A Warning Alert
The multimeter sounds an alerting beep when the test lead is inserted to the A
input terminal but the rotary switch is not set to the corresponding A location. The
display indicates a flashing AErr annunciator until the test lead is removed from
the A input terminal. This warning alert is not available in T1/T2 temperature
measurements mode.
Input-mA Warning Alert
The multimeter sounds an alerting beep when the μA/mA input terminal detects a
voltage level of more than 1.6 V. The display indicates a flashing CErr annunciator
until the test lead is removed from the μA/mA input terminal.
For your safety, please be aware of the alert. When you are alerted, just
remove the test leads from the measuring source.
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