Major tech MT930 Bedienungsanleitung

MT930

PHASE ROTATION METER

INSTRUCTION MANUAL

Introduction

The phase rotation indicator is a handheld instrument designed to detect the

rotary ﬁeld of three-phase systems.

Symbols

The following symbols appear on the phase Rotation Meter or in this manual.

Elements of the Phase Rotation Meter

Determine the Rotary Field Direction

To determine the rotary ﬁeld direction:

1. Connect the test probes to the end of the test leads.

2. Connect the test probes to the three mains phases.

3. Green ON indicator shows that the meter is ready for testing.

4. Either the clockwise or counter-clockwise rotary indicator illuminates

showing the type of rotary field direction present.

5. The rotary indicator lights even if the neutral conductor, N, is connected

instead of the test lead input jacks.

Earth

AC or DC

Conforms to EU directives

Risk of electric shock

Risk of danger. Important

information see manual

Hazardous Voltage

Equipment protected by double

or reinforced insulation

Over voltage (installation) Cat III, pollution

Degree 2 per IEC1010-1 refers to the level

of impulse withstand voltage protection

provided. Equipment of Over voltage CAT

III is equipped in ﬁxed installations (e.g.

electricity meter and primary over-current

protection equipment.

CAT III

Figure 1. Phase Rotation Indicator

PHASE ROTATION INDICATOR

1. Test lead input jack

2. L1, L2, L3 Indicators

3. Counter-clockwise rotation LCD

indicator

4. Clockwise rotation LCD indicator

5. Brief instructions on instrument rear

Safety Information

Caution identiﬁes conditions and actions that may damage the

MT930. Warning identiﬁes conditions and actions that pose

hazard to the user.

Read First: Safety Information

To avoid possible electric shock or ﬁre, do the following:

• Read the following safety information carefully before using or servicing

the instrument.

• Adhere to local and national safety codes.

• Protective equipment must be used to prevent shock and injury.

• Use of instrument in a manner not speciﬁed by the manufacturer may

impair safety features/protection provided by the equipment.

• Avoid working alone.

• When using the probes, keep ﬁngers away from probe contacts. Keep

ﬁngers behind the ﬁnger guards on the probes.

• Measurements can be adversely affected by impedances of additional

operating circuits connected in parallel or by transient currents.

• Verify operation prior to measuring hazardous voltages (voltages above

30V AC RMS, 42V AC peak and 60V DC).

• Do not use the meter with any parts removed.

• Do not use the meter around explosive gas, vapor or dust.

• Do not use the meter in a wet environment.

Speciﬁcations

AC Voltage 40 to 690V

Frequency 15 to 400Hz

Current Pickup 1mA

Nominal Test Current 1mA

(per phase)

Phase Rotation Clockwise or Anti-clock wise

Visual Indication LCD

Operating Temperature 0°C to 40°C

Pollution Degree 2

Type of Protection IP40

Battery 9V

Dimensions 130 x 69 x 32mm

Weight 130g

Electrical Safety IEC 61010/EN61010,

IEC 61557-7/EN 61557-7

Protection Level CAT III 600V

www.major-tech.com www.majortech.com.au

[email protected] [email protected]

MAJOR TECH (PTY) LTD

South Africa Australia

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