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browse the previous data and it will display 600. That is to say, saving and reading are
conducted in circular manner.
EXIT
SYS
System information checking setting key, press the key to view the
current model, serial number, software version, and language, buzzer, screen brightness
and so on can be set. Use the arrows keys to select and change.
SHIFT
Second function enable key
SHIFT
+
HOLD
DUTY
Reading hold function, press the key combination, the reading on
the meter remains; and press the key combination again to exit the reading hold function.
SHIFT
+
AC+DC
AC + DC measurement function, press the key combination to
start AC + DC signal measurement; press the key combination again to exit the reading
hold function. (The function cannot be applied currently)
SHIFT
+
TRIG
EXT
External trigger function, press the key combination to enter the
external trigger measurement mode; when a low pulse flows through the external trigger
terminal, the system measures one time; press the key combination again to exit the
external trigger function. (ET3255 standard function, ET3240 / ET3241 optional function)
SHIFT
+
CAL
AUTO
Calibration function, press the key combination to enter the
calibration mode. However, the calibration function is related to what the measurement
function is when entering the calibration mode. For example, when the current
measurement function is DCV, then press the key combination and it will enter the
calibration mode of DCV. The measurement functions which support calibration function
are: DC/AC voltage, DC/AC current, two- and four-wire resistance, capacitance.
SHIFT
+
HI
SAVE
Upper limit comparison function, which is only effective in case of
AC and DC voltage. When it is switched to the AC and DC voltage measurement function,
press the key combination to enter the upper limit comparison function and the default
comparison value is 1V; press the Enter key to set the comparison value, press the arrow
