Major tech MT1887 Посібник користувача - Сторінка 2
Переглянути онлайн або завантажити pdf Посібник користувача для Мультиметр Major tech MT1887. Major tech MT1887 17 сторінок. True rms industrial multimeter
Друкувати сторінку
IntroductionThis meter measures AC/DC Voltage, AC/DC Current, Resistance, Capacitance, Frequency (electrical & electronic), Duty Cycle,
Diode Test, and Continuity plus Thermocouple Temperature. It features a waterproof, rugged design for heavy duty use. Proper use and care of
this meter will provide many years of reliable service.
Safety
This symbol adjacent to another symbol, terminal or operating device indicates that
the operator must refer to an explanation in the Operating Instructions to avoid
personal injury or damage to the meter.
WARNING
This WARNING symbol indicates a potentially hazardous situation, which if not
avoided, could result in death or serious injury.
CAUTION
This CAUTION symbol indicates a potentially hazardous situation, which if not
avoided, may result damage to the product.
MAX
1000V
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) 1000 VAC or VDC.
This symbol adjacent to one or more terminals identifies them as being associated
with ranges that may, in normal use, be subjected to particularly hazardous
voltages. For maximum safety, the meter and its test leads should not be handled
when these terminals are energized.
This symbol indicates that a device is protected throughout by double insulation or
reinforced insulation.
PER IEC1010 OVERVOLTAGE INSTALLATION CATEGORY
OVERVOLTAGE CATEGORY I
Equipment of OVERVOLTAGE CATEGORY I is equipment for connection to circuits in which
measures are taken to limit the transient overvoltages to an appropriate low level.
Note – Examples include protected electronic circuits.
OVERVOLTAGE CATEGORY II
Equipment of OVERVOLTAGE CATEGORY II is energy-consuming equipment to be supplied
from the fixed installation.
Note – Examples include household, office, and laboratory appliances.
OVERVOLTAGE CATEGORY III
Equipment of OVERVOLTAGE CATEGORY III is equipment in fixed installations.
Note – Examples include switches in the fixed installation and some equipment for industrial use
with permanent connection to the fixed installation.
OVERVOLTAGE CATEGORY IV
Equipment of OVERVOLTAGE CATEGORY IV is for use at the origin of the installation.
Note – Examples include electricity meters and primary over-current protection equipment