Making Measurements 2
Agilent U1251B/U1252B User’s and Service Guide 47
Alerts and Warning During Measurement
Overload alert
The meter provides an overload alert for voltage
measurements in both auto and manual range modes. The
meter beeps periodically once the measuring voltage exceeds
1010 V. For your safety, please be aware of this alert.
Input warning
The meter sounds an alert beep when the test lead is
inserted into the A input terminal but the rotary switch is
not set to the corresponding mA.A location. The primary
display indicates a flashing “A- Err” until the test lead is
removed from the A input terminal. Refer to Figure 2- 16.
Figure 2-16 Input terminal warning
For your safety, look out for this alert. When you are alerted,
immediately remove the test leads from the measuring source.
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