Major tech MT25 Instruction Manual - Page 5

Browse online or download pdf Instruction Manual for Multimeter Major tech MT25. Major tech MT25 16 pages. 600v ac/dc multimeter

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2. Safety Symbols

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.

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.

Equipment is protected by double or reinforced insulation

Indicates the terminal(s) so marked must not be connected to a circuit

MAX

where the voltage with respect to earth ground exceeds the maximum

safety rating of the meter.

2.1. Safety Category Ratings

Category

Brief

Rating

Description

CAT II

Single phase

receptacles

and connected

loads

Three phase

CAT III

circuits and

single phase

lighting circuits

in commercial

buildings

The measurement category (CAT) rating and voltage rating is determined by a

combination of the meter, test probes and any accessories connected to the meter

and test probes. The combination rating is the LOWEST of any individual

component.

2.2. Warning

Operation is limited to CAT II applications when the insulated tips are removed

from one or both test probes. Refer to Input Limits section in this manual for

maximum voltage ratings.

TEST LEADS

CAT IV 600V

CAT III 1000V

Typical Applications

• Household appliances, power tools

• Outlets more than 10m (30ft) from a CAT III

source

• Outlets more than 20m (60ft) from a CAT IV

source

• Equipment in ﬁxed installations such as 3- phase

motors, switchgear and distribution panels

• Lighting circuits in commercial buildings

• Feeder lines in industrial plants

• Any device or branch circuit that is close to a

CAT III source