2 MN24-en-US_V2.2 07/15
Introduction
Congratulations on your purchase of Extech’s MN24 Multimeter. This meter
measures AC/DC Voltage, DC Current, Resistance, Battery Voltage, Diode
Voltage and Continuity. This professional meter is shipped fully tested and
calibrated and, with proper care, will provide years of safe reliable service.
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
Safety Precautions
1. Improper use of this meter can cause damage, shock, injury or death. Read
and understand this user 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 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 Diode, Resistance or Continuity tests.
8. Remove the battery from the meter if the meter is to be stored for long
periods.
9. Voltage checks on electrical outlets can be difficult and misleading because
of the uncertainty of connection to the electrical contacts. Other means
should be used to ensure that the terminals are not "live".
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