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Introduction
Congratulations on your purchase of Extech model ML720 True rms
datalogging digital multimeter. Properly used, this meter will provide many
years of reliable service.
The MultiLog™ measures AC/DC Voltage/Current, Resistance,
Frequency, Capacitance, Temperature, Diode, and Continuity. The
MultiLog™ offers a built-in datalogger and an optical RS-232 interface.
The meter stores 43,000 data points in internal memory.
Safety
International Safety Symbols
This symbol, adjacent to another symbol or terminal, indicates the
user must refer to the manual for further information.
This symbol, adjacent to a terminal, indicates that, under normal
use, hazardous voltages may be present
Double insulation
Safety Precautions
1. Improper use of this meter can cause damage, shock, injury or death.
Read and understand this user’s manual before operating the meter.
2. Make sure any covers or battery doors are properly closed and
secured.
3. Always remove the test leads before replacing the battery or fuses.
4. Inspect the condition of the test leads and the meter itself for any
damage before operating the meter. Repair or replace any damage
before use.
5. Do not exceed the maximum rated input limits.
6. Use great care when making measurements if the voltages are
greater than 25VAC rms or 35VDC. These voltages are considered a
shock hazard.
7. Always discharge capacitors and remove power from the device
under test before performing Capacitance, Diode, Resistance or
Continuity tests.