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Getting Started
Understanding the Rotary Switch
Select a primary measurement function by positioning the rotary switch
to one of the icons around its perimeter. The model 289 offers two
additional functions: low ohms (Y) and low impedance (LoZ) ac
volts. Each position shown in Figure 3 is described in Table 4.
Figure 3. Rotary Switch
8
Table 4. Rotary Switch Positions
Switch
Position
L
V
T
U
N
S
P
est03.emf
A
X
Y
Function
AC voltage measurement using a low input
impedance (model 289 only)
AC voltage measurements
AC millivolt measurements
DC and ac+dc voltage measurements
DC millivolts, ac+dc millivolt, and temperature
measurements
Resistance, continuity, and conductance
measurements
Diode test and capacitance measurements
AC and dc amps and milliamps measurements
AC and dc microampere measurements
Resistance measurements with 50e range
(model 289 only)