Keysight U1281A/U1282A Service Guide 15List of TablesTable 1-1 Recommended test equipment . . . . . . . . . . . . . . . . . .20Table 1-2 DC V (V) performance verification tests . . . . . . . . . . . .27Table 1-3 DC mV (mV) performance verification tests . . . . . . . .28Table 1-4 AC V (V) performance verification tests . . . . . . . . . . . .29Table 1-5 AC mV (mV) performance verification tests . . . . . . . . .30Table 1-6 LPF performance verification test . . . . . . . . . . . . . . . .30Table 1-7 DC current (μA.mA) performance verification tests . .31Table 1-8 DC current (A) performance verification tests . . . . . . .31Table 1-9 AC current (A) performance verification tests . . . . . . .32Table 1-10 AC current (μA.mA) performance verification tests . . .33Table 1-11 Diode performance verification test . . . . . . . . . . . . . . .33Table 1-12 Capacitance performance verification tests . . . . . . . .34Table 1-13 Resistance performance verification tests . . . . . . . . . .34Table 1-14 Conductance performance verification test . . . . . . . .35Table 1-15 Frequency sensitivity performance verification test . .35Table 1-16 Duty cycle performance verification test . . . . . . . . . . .35Table 1-17 Temperature performance verification test . . . . . . . . .36Table 1-18 Frequency counter performance verification test . . . .36Table 1-19 Adjustment input values . . . . . . . . . . . . . . . . . . . . . . .46Table 1-20 Calibration error codes . . . . . . . . . . . . . . . . . . . . . . . . .57Table 2-1 Operating checklist . . . . . . . . . . . . . . . . . . . . . . . . . . .60