Major tech MT930 User manual

INSTRUCTION MANUAL

PHASE ROTATION INDICATOR

MT930

Contents Page no

1. Introduction .....................................................................................4

2. Symbols ..........................................................................................4

3. Safety Information ............................................................................4

4. The Phase Rotation Indicator Ships with the Following Items ..................5

5. Elements of the Phase Rotation Indicator .............................................5

6. Determine Rotary Field Direction ........................................................6

7. Specifications ...................................................................................6

1. INTRODUCTION

The phase rotation indicator is a handheld instrument designed to detect

the rotary field of three-phase systems.

2. SYMBOLS

The following symbols appear on the Motor and Phase Rotation indicator

or in this manual.

3. SAFETY INFORMATION

CAUTION identifies conditions and actions that may damage the

phase rotation indicator.

WARNING identifies conditions and actions that pose a hazard to

the user. 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.

• Individual 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.

• Inspect the test leads for damaged insulation or exposed metal. Check

test lead continuity, damaged leads must be replaced, do not use the

phase Rotation indicator if it looks damaged.

• Be careful when working above 30V AC RMS, 42V AC peak and 60V DC,

Such voltages pose a shock hazard.

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

fingers behind the finger guards on the probes.

Risk of electric shock

Risk of Danger, Important information see manual.

Hazardous Voltage.

Equipment protected by double or reinforced insulation

Earth

AC or DC

Conforms to EU directives

Overvoltage (Installation) Category III. Pollution Degree 2 per

ICE 1010-1 refers to the level of Impulse withstand voltage

protection provided. Equipment of Overvoltage Category III is

equipment in fixed installations (e.g.,electricity meter and

primary over-current protection equipment).

• 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 phase rotation indicator with any of the parts removed.

• Do not use the phase rotation indicator around explosive gas, vapor, or

dust.

• Do not use the phase rotation indicator in a wet environment.

4. THE PHASE ROTATION INDICATOR SHIPS WITH THE

FOLLOWING ITEMS

• 3 pieces self-retaining test probes

• 3 Alligator Clips

• Users Manual

Note: If an item is damaged or missing, contact the place of purchase

immediately.

5. ELEMENTS OF THE PHASE ROTATION INDICATOR

1 - L1, L2, L3 Indicators

2 - Clockwise Rotation LCD Indicator

3 - Counter Clockwise Rotation LCD Indicator

4 - Test Lead lnput Jack

5 - Brief Instructions on Instrument Rear

6. DETERMINE 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. The green ON indicator shows that the instrument 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 up even if the neutral conductor, N, is

connected instead of the Test lead input jacks.

Nominal Voltage 40V to 850V AC between Phases

Frequency Range (fn) 15Hz to 400Hz

Current Pickup 1mA

Nominal Test Current (In per phase) 1mA

Maximum Operating Voltage (Ume) 850V AC

Operating Temperature 0°C to 40°C

Type of Protection IP40

Dimensions (HxWxD) 135x75x31mm

Weight 135.6g

Approvals CE (EU directives)

Safety For indoor use and in accordance

with the requirements for double

insulation to IEC61010-1/

EN61010-1 IEC61557-7/

EN61557-7 Over voltage Category

III 1000V and Category IV 600V,

Pollution Degree 2.

7. SPECIFICATIONS

Function Range

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

[email protected] [email protected]

MAJOR TECH (PTY) LTD

South Africa Australia

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