Twilight DT4221, Instruction Manua, Page: 27 / 81

21
To ensure safe operation,
make sure to select a
measurement function
and then connect
the test leads to the
measurement object.
2
Preparation for Measurements
Before using the instrument, be
sure to read “Usage Notes” (p. 8).
Installation and connection
Measurement
End of the measurement
Turn on the power and select the
measurement function.
Attach the test leads to the
measurement terminals. (p. 24)
As necessary, perform zero adjustment.
(p. 49)
1
2
Connect the test leads to the
measurement object.
(As necessary)
Hold the measured value. (p. 43)
To ensure safe
operation, make sure to
select a measurement
function and then
connect
the test leads to the
measurement object.
2.1 Measurement Workflow
Insert the battery. (p. 22)
As necessary, have other
optional items available and
ready.
Perform the startup check. (p. 29)
Move the test leads away from the measurement object and then
turn off the power.