Select Measurement Range (Measurement Shift); Math Operation - East Tester ET3260 User Manual

Users manual
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3.1.8 Select measurement range (measurement shift)

You may use auto measurement range function to make multimeter select measurement range by
itself, or use manual measurement range function to select fixed measurement range. Auto
measurement range function is quite convenient, for multimeter will automatically select
measurement range proper for every measurement. However, manual measurement range
function may accelerate measurement, for multimeter does not need to take time to determine
measurement range for every measurement.
The selected shift-selecting method (auto or manual) is stored in volatile memory, and after

cutting off power or resetting remote interface, multimeter will go back to auto
measurement range method.
Auto measurement range threshold value: low-end measurement range refers to

measurement range <10%; high-end measurement range refers to measurement
range >120%.
If input signal is larger than currently measurable measurement range, multimeter will send

out overloading indication, over measurement range appearing on front panel.
During frequency and period measurement, multimeter only uses one measurement range to

include all the input signals from 3Hz to 300 kHz.
During continuity test, measurement range is fixed as 1KΩ, and during diode test,

measurement range is automatic (1Vdc or 10Vdc) and current source output is 1mA.
During ratio measurement, the specified measurement is suitable for input terminal signal,

and when measuring sense terminal reference voltage, multimeter will automatically select
auto measurement range function.
Front panel operation: Under measurement function: 1. It can enter manual measurement

range mode through
referring to low measurement range. 2. It can also enter manual measurement mode by
pressing softkeys of Measurement range (
Press the softkey of Auto (

3.2 Math Operation

Math operation function means to conduct math operation to each reading or series of stored
reading data. The selected math function keeps valid until power is cut off.
Under measurement function, press the softkey of Display (
measurement values under the current function, which is as shown in the following figure.
ET3260 and ET3260A
and ,
) to select auto measurement range.
6 1/2 Digit Multimeter
referring to high measurement range and
) + and Measurement range - (
) to display related math
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) 3.