1 Getting Started
30 Keysight U1251B and U1252B User’s and Service Guide
The rotary switch at a glance
Figure 1-6 Rotary switch
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Table 1-1 Rotary switch description and functions
No. Description/Function
1 Charge mode (U1252B only) or OFF
2 AC voltage
3 AC voltage, DC voltage or DC+AC voltage (U1252B only)
4 DC mV, AC mV, AC+DC mV (U1252B only)
5
Resistance (
), Continuity, and Conductance ( nS )
6 Frequency counter (U1252B only) or Diode
7 Capacitance or Temperature
8 DC μA, AC μA, AC+DC μA
9 DC mA, DC current, AC mA, AC current or AC+DC current
10 Square-wave output, Duty cycle, or Pulse width output (for U1252B) and OFF (for U1251B)