General Instructions; Precautions And Safety Measures; Before Using - Multimetrix DMM 220 Manual De Instrucciones

1.

GENERAL INSTRUCTIONS

1.1

Precautions and safety measures

1.1.1 Before using

You have just acquired a DMM220 multimeter. Thank you for your
confidence. It measures AC/DC Voltage, AC/DC Current, Resistance,
Frequency (electrical & electronic), test diodes, and Continuity. It features a
waterproof, rugged design for heavy duty use. Proper use and care of this
multimeter will provide many years of reliable service. This multimeter
complies with the IEC 61010-1 & IEC 61010-2-033 standards concerning
electronic measurement instruments. For your own safety and to prevent
damage to the instrument, follow the instructions in this manual.
Be careful to adhere to storage conditions.
This handheld autonomous instrument was designed for:
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Indoor use
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Use in pollution 2 degree environments
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In altitudes lower than 2,000 meters
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In temperatures ranging from 5°C to 40°C
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It can be used up to 1000V on category III circuits, or 600V on category
IV circuits.
MEASUREMENT CATEGORIES (IEC 61010-2-033)
CAT II: MEASUREMENT CATEGORY II is applicable to test and measuring
circuits connected directly to utilization points (socket outlets and similar
points) of the low-voltage MAINS installation. This part of the installation is
expected to have a minimum of two levels of overcurrent protective devices
between the transformer and the connecting points of the measuring circuit.
Example : measurements on MAINS CIRCUITS of household appliances,
portable tools and similar equipment.
CAT III: MEASUREMENT CATEGORY III is applicable to test and
measuring circuits connected to the distribution part of the building's low-
voltage MAINS installation. This part of the installation is expected to have a
minimum of one level of over-current protective devices between the
transformer and possible connecting points.
Example : measurements on distribution boards (including secondary
electricity meters), circuitbreakers, wiring, including cables, bus-bars,
junction boxes, switches, socket -outlets in the fixed installation, and
equipment for industrial use and some other equipment such as stationary
motors with permanent connection to the fixed installation.
CAT IV: MEASUREMENT CATEGORY IV is applicable to test and
measuring circuits connected at the source of the building's low-voltage
MAINS installation. This part of the installation could have no over-current
protective devices between the transformer and connecting points of the
measuring circuit.
Example : measurements on devices installed before the main fuse or circuit
breaker in the building installation.
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Chapter II
DMM220