Amprobe PRM-4 Manuel utilisateur

PRM-4

Phase Sequence and

Motor Rotation Tester

Users Manual

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English

PRM-4

Phase Sequence and

Motor Rotation Tester

Users Manual

PRM4_Rev001

Limited Warranty and Limitation of Liability

Your Amprobe product will be free from defects in material and workmanship for

1 year from the date of purchase. This warranty does not cover fuses, disposable

batteries or damage from accident, neglect, misuse, alteration, contamination,

or abnormal conditions of operation or handling. Resellers are not authorized

to extend any other warranty on Amprobe’s behalf. To obtain service during the

warranty period, return the product with proof of purchase to an authorized

Amprobe Test Tools Service Center or to an Amprobe dealer or distributor. See

Repair Section for details. THIS WARRANTY IS YOUR ONLY REMEDY. ALL OTHER

WARRANTIES - WHETHER EXPRESS, IMPLIED OR STAUTORY - INCLUDING IMPLIED

WARRANTIES OF FITNESS FOR A PARTICULAR PURPOSE OR MERCHANTABILITY, ARE

HEREBY DISCLAIMED. MANUFACTURER SHALL NOT BE LIABLE FOR ANY SPECIAL,

INDIRECT, INCIDENTAL OR CONSEQUENTIAL DAMAGES OR LOSSES, ARISING FROM

ANY CAUSE OR THEORY. Since some states or countries do not allow the exclusion

or limitation of an implied warranty or of incidental or consequential damages, this

limitation of liability may not apply to you.

Repair

All test tools returned for warranty or non-warranty repair or for calibration should

be accompanied by the following: your name, company’s name, address, telephone

number, and proof of purchase. Additionally, please include a brief description of

the problem or the service requested and include the test leads with the meter.

Non-warranty repair or replacement charges should be remitted in the form of a

check, a money order, credit card with expiration date, or a purchase order made

payable to Amprobe®Test Tools.

In-Warranty Repairs and Replacement – All Countries

Please read the warranty statement and check your battery before requesting

repair. During the warranty period any defective test tool can be returned to your

Amprobe®Test Tools distributor for an exchange for the same or like product.

Non-Warranty Repairs and Replacement – US and Canada

Non-warranty repairs in the United States and Canada should be sent to a

Amprobe®Test Tools Service Center. Call Amprobe®Test Tools or inquire at your

point of purchase for current repair and replacement rates.

➊Phase rotation input terminals

➋Open phase indicators

➌Phase rotation indicators

➍Motor tester power switch

➎Motor tester power indicator

➏Motor rotation indicators

➐Motor rotation input terminals

M1 M2

BATT

TEST

A B C

L2L3

MOTOR ROTATION DETERMINED WHILE FACING MOTOR SHAFT

CAT

600V

MOTOR

ROTATION

TESTER

3-PHASE

TESTER

PRM-4

DO NOT CONNECT TO LIVE VOLTAGE!

PRM-4 Phase Sequence and

Motor Rotation Tester

CONTENTS

Safety Information ................................................................................... 5

Symbols Used in this Manual................................................................... 6

Introduction.............................................................................................. 6

Making Measurements ............................................................................ 7

3-Phase Rotation Test ........................................................................ 7

Open Phase Test.................................................................................. 7

Motor Rotation Test ...........................................................................8

Maintenance............................................................................................. 9

Battery and Fuse Replacement .......................................................... 9

Cleaning and Storage.........................................................................9

Speciﬁcations............................................................................................ 9

General Speciﬁcations ........................................................................ 9

Electrical Speciﬁcations .................................................................... 10

SAFETY INFORMATION

Warnings and Precautions

The PRM-4 Phase Sequence and Motor Rotation Tester conforms to

CSA 22.2-1010-1 and EN61010-1, CAT III 600 V.

To ensure safe operation and usage of this instrument, follow

instructions in this manual. Failure to observe Warnings may result in

SEVERE injury or death.

It is recommended for use in distribution level and ﬁxed•

installations, as well as lesser installations, and not for primary

supply lines, overhead lines and cable systems.

Do not exceed the maximum overload limits per function (see•

speciﬁcations) nor the limits marked on the instrument itself.

Never apply more than 600 V ac rms between the test lead and

earth ground.

Inspect the tester, test leads and accessories before each use. Do•

not use any damaged part.

Never ground yourself when taking measurements. Do not touch•

exposed circuit elements or test probe tips.

Do not operate the tester in an explosive atmosphere.•

Exercise extreme caution when: measuring voltage >20 V // current•

>10 mA // AC power line with inductive loads // AC power line

during electrical storms // current, when the fuse blows in a circuit

with open circuit voltage >600 V.

Never replace a fuse with one of a different rating.•

Remove test leads before opening the case.•

Do not use in a manner not speciﬁed or the protection afforded•

by the instrument may be impaired.

SYMBOLS USED IN THIS MANUAL

Caution! Refer to the

explanation in this

Manual AC – Alternating Current

Caution! Risk of electric

shock DC – Direct Current

Earth (Ground) Canadian Standards

Association

Double Insulation or

Reinforced insulation Complies with European

Directives

Do not dispose of this

product as unsorted

municipal waste. Conforms to relevant

Australian standards.

INTRODUCTION

The tester provides three functions in one unit, including open phase,

phase sequence and motor rotation indication. This tester is ideal for

installing conveyor lines, pump systems and interconnected drivers.

The PRM-4 is two measurement devices. One half measures the phase

sequence of a 3-wire system using the power of the system under

test. Using lamp indicators, it will indicate the 3-phase sequence or

it will indicate an open phase situation. The other half of the PRM-4

measures 3-phase motor rotation on an unpowered motor using the

PRM-4’s internal 9 volt battery. The unit will indicate whether the

motor shaft has clockwise or counter-clockwise rotation.

Features:

• Identiﬁes 3-phase sequence and open phase check

• Motor shaft rotation

• Battery operated

• Meets EN61010 safety requirements

 Caution

Read all Safety Information before using this tester.

MAKING MEASUREMENTS

3-Phase Rotation Test

 Caution

This instrument only indicates that voltage is present, not the

voltage level. Verify the actual voltage with a multimeter. Using the

wrong voltage can damage a motor.

Connect the three color coded test leads to the 3-phase input1.

terminals, L1-L2-L3 also know as A-B-C or R-S-T. See Figure 1.

Connect the three color coded alligator clips to the terminals of2.

a 3-phase power source. The connection order is optional. Use

extreme caution in this high voltage situation.

Conﬁrm that all three lights below the test lead inputs on the3.

PRM-4 are ON. If one or more of the three lights is OFF, there is an

open phase condition. Correct the power source problems before

proceeding (See Open Phase Test later in this manual). If the Open

Phase tests are good, the PRM-4 is defective. Repair or replace the

PRM-4 before proceeding.

If all three lamps are ON, check the phase rotation indication for4.

the rotation direction, clockwise () or counter-clockwise ()

indicator.

If the counter clockwise lamp is ON, reverse the connections of any5.

two of the three alligator clips for clockwise rotation. Use extreme

caution in this high voltage situation.

The phase sequence is correct for clockwise (6. ) rotation when

the clockwise lamp is ON and the power source terminals are

connected by the alligator clips to L1, L2, and L3. Remove power

and label the power source wires.

Open Phase Test

 Caution

The multimeter used for this test should be properly rated for the

circuit under test.

Connect a multimeter (set to VAC and the voltage range expected)1.

V input to the phase wire in question and the COM input to

neutral or ground to check the phase voltage. Use extreme

caution in this high voltage situation.

Verify that the two other phases are working properly and that2.

the 3-phase to phase voltages are correct. If a problem is found,

correct the problem before returning to the 3-phase rotation test.

Motor Rotation Test

This test can be used to verify the shaft rotation and the M1-M2-M3

connections or to determine the M1-M2-M3 connections on a motor

that is not marked.

 Warning

Make all connections with circuits unpowered. If the clockwise or

counterclockwise RED indicator is ON before rotating the motor

shaft, voltage is present. Stop measuring. Remove the test leads and

turn off the external power.

Use a multimeter to verify that no voltage is present on the motor1.

windings.

Connect the color coded test leads to the three motor input2.

terminals M1- M2-M3. Press the power button (See Figure 2). The

green indicator light will be ON.

Facing the motor shaft, hand rotate the motor shaft clockwise.3.

If the clockwise indicator (4. ) is ON, the M1-M2-M3 connections

are correct for clockwise rotation.

If the counterclockwise (5. ) indicator is ON, the M1-M2-M3

connections are correct for counterclockwise rotation.

If the motor rotation direction is wrong, reverse any two of the6.

M1-M2-M3 connections and repeat the test.

After 3-phase rotation and motor phasing are veriﬁed:

Turn off power at the source.1.

Connect the previously identiﬁed power wire L1 to motor wire2.

M1. Repeat the connections for L2 to M2 and L3 to M3. See Figure

Inspect the connections for electrical safety.3.

The motor will rotate in the desired direction when power is

applied.

MAINTENANCE

If the PRM-4 appears to operate incorrectly, check the following

items:

Review the operating instructions to ensure the meter is being1.

used correctly.

Inspect and test the continuity of the test leads.2.

Make sure the battery is in good condition. Replace a low battery3.

immediately.

Check the condition of the fuses.4.

 WARNING

To avoid electrical shock, remove the test leads from the PRM-4 and

the test circuit before accessing the battery or the fuse.

Battery and Fuse Replacement

To access these parts, you must ﬁrst remove the rear cover of

the PRM-4. The rear cover is held in place with two screws. After

removing the screws, you can easily remove and replace the battery

or a fuse. To replace a fuse, pry it from the retaining clips using a

small screwdriver. See Figure 4.

Use the following replacement parts:

Battery: 9 V NEDA 1604, IEC 6F22

Phase Sequence Fuse: Fast Blow 200 mA/600 V (Amprobe FP900)

Motor Rotation Fuse: Fast Blow 100 mA/250 V (Littel Fuse 216.100)

Cleaning and Storage

Periodically wipe the case with a damp cloth and detergent. Do not

use abrasives or solvents. Remove the battery if the tester is not in use

for periods longer than 60 days.

SPECIFICATIONS

General Speciﬁcations

Operating Environment: 0 °C to 40 °C at <80 % R.H.

Power: Single standard 9 V battery, NEDA 1604, JIS 006P, IEC 6F22

Battery life: Approximately 200 hours typical with carbon-zinc battery

Low battery indication: The BATT LED does not come ON when TEST

button is pressed

Dimensions: 153(L) x 72(W) x 35(D) mm. (6.02 x 2.83 x 1.37 in)

Weight: Approximately 218 g (7 oz) including battery

Environment: Indoor use

Altitude: 2000 m (6561 ft.)

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