Extech EX420 Handleiding
Extech
Multimeter
EX420
Bekijk gratis de handleiding van Extech EX420 (15 pagina’s), behorend tot de categorie Multimeter. Deze gids werd als nuttig beoordeeld door 61 mensen en kreeg gemiddeld 4.7 sterren uit 31 reviews. Heb je een vraag over Extech EX420 of wil je andere gebruikers van dit product iets vragen? Stel een vraag
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User's Guide
Digital Multimeter
Extech 420
EX420-en-GB_v3.4 4/15 2
Introduction
Congratulations on your purchase of the Extech 420 (part number EX420) Autoranging Multimeter.
This meter measures AC/DC Voltage, AC/DC Current, Resistance, Capacitance, Frequency, Duty
Cycle, Diode Test, and Continuity plus Thermocouple Temperature. Proper use and care of this meter
will provide many years of 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
Double insulation
This WARNING symbol indicates a potentially hazardous situation, which if not
avoided, could result in death or serious injury.
This CAUTION symbol indicates a potentially hazardous situation, which if not
avoided, may result damage to the product.
This symbol advises the user that the terminal(s) so marked must not be
connected to a circuit point at which the voltage with respect to earth ground
exceeds (in this case) 600 VAC or VDC.
WARNING
CAUTION
MAX
600V
EX420-en-GB_v3.4 4/15 3
CAUTIONS
Improper use of this meter can cause damage, shock, injury or death. Read and understand
this user manual before operating the meter.
Always remove the test leads before replacing the battery or fuses.
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.
Use great care when making measurements if the voltages are greater than 25VAC rms or
35VDC. These voltages are considered a shock hazard.
Warning! This is a class A equipment. This erences in the living equipment can cause interf
quarters; in this case the operator can be required to carry out adequate measures.
Always discharge capacitors and remove power from the device under test before performing
Diode, Resistance or Continuity tests.
Voltage checks on electrical outlets can be difficult and misleading because of the uncertainty
of connection to the recessed electrical contacts. Other means should be used to ensure that
the terminals are not "live".
If the equipment is used in a manner not specified by the manufacturer, the protection provided
by the equipment may be impaired.
This device is not a toy and must not reach children’s hands. It contains hazardous objects as
well as small parts that the children could swallow. In case a child swallows any of them,
please contact a physician immediately
Do not leave batteries and packing material lying around unattended; they can be dangerous
for children if they use them as toys
In case the device is going to be unused for an extended period of time, remove the batteries
to prevent them from training
Expired or damaged batteries can cause cauterization on contact with the skin. Always,
therefore, use suitable hand gloves in such cases
See that the batteries are not short-circuited. Do not throw batteries into the fire.
Product specificaties
| Merk: | Extech |
| Categorie: | Multimeter |
| Model: | EX420 |
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