Amprobe AM-540 Manuale utente

Users Manual

AM-540

Advanced HVAC

Multimeter

AM-550

Industrial Multimeter

AM-540-EUR

AM-550-EUR

Digital Multimeter

99 Washington Street

Melrose, MA 02176

Phone 781-665-1400

Toll Free 1-800-517-8431

Visit us at www.TestEquipmentDepot.com

AM-540

Advanced HVAC Multimeter

AM-550

Industrial Multimeter

AM-540-EUR

AM-550-EUR

Digital Multimeter

Users Manual

August 2011, Rev.2

English

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, unless local laws require otherwise. 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. Please check the “Where to Buy” section on www.amprobe.

com for a list of distributors near you. Additionally, in the United States and Canada In-Warranty repair

and replacement units can also be sent to a Amprobe® Test Tools Service Center (see address below).

AM-540 Advanced HVAC Multimeter

AM-550 I ndustrial Multimeter

AM-540-EUR / AM-550-EUR Digital Multimeter

1 Flash Light

2 LCD Display

3 Push Buttons (See Making Measurement for button functions)

4 AM-550 / AM-550-EUR: Low Impedance button

AM-540 / AM-540-EUR: Backlight button

5 Rotary Switch

6 SELECT Button

7 Input Terminal for voltage, diode, capacitance, resistance,

continuity and temperature measurement

8 COM (return) Terminal for all measurements

9 Input Terminal for AC/DC mA/uA measurement

10 Input Terminal for AC/DC A measurement to10A

4 46

Screen Display

1 Auto range or Manual range

2 Direct current

3 Negative reading

4 Alternate current

5 True-rms value

6 Low battery indicator

7 Data hold

8 Diode test

9 Continuity test

10 Relative zero mode

11 Non-Contact Voltage

detection mode

12 Measurement units

for Resistance

13 Measurement units

for Frequency

14 Measurement units for Voltage

15 Measurement units for Current

2 4

10 19 2011 21

13 12

14 15

81 2223

16 Measurement units for Capacitance

17 Duty cycle

18 Auto Power Off

19 Maximum / minimum reading

memory

20 Positive peak / negative peak

reading memory

21 Measurement unit for Temperature

22 Low-pass lter

23 400KΩ low-impedance test

(AM-550 / AM-550-EUR only)

24 Temperature measurement T1 or T2

25 Temperature measurement T1 - T2

26 Warning for error input terminals

connection for test leads

27 Hazardous voltage presents

28 Analog bar graph display

AM-540 Advanced HVAC Multimeter

AM-550 Industrial Multimeter

AM-540-EUR / AM-550-EUR Digital Multimeter

CONTENTS

SYMBOL .................................................................................................................2

SAFETY INFORMATION .........................................................................................2

UNPACKING AND INSPECTION .............................................................................3

FEATURES ...............................................................................................................4

MAKING MEASUREMENT .....................................................................................5

Rotary Switch Positions ....................................................................................6

Function Buttons ..............................................................................................6

Measuring AC and DC Voltage ........................................................................9

Low Pass Filter...................................................................................................9

Measuring Frequency / Duty Cycle...................................................................11

Measuring AC and DC Current ........................................................................13

Measuring Resistance .......................................................................................14

Measuring Continuity ......................................................................................15

Measuring Capacitance ....................................................................................16

Measuring Diode...............................................................................................17

Measuring Temperature °C / °F ........................................................................18

Non-Contact Voltage Sensing ..........................................................................19

SPECIFICATION ......................................................................................................20

MAINTENANCE ......................................................................................................24

BATTERY AND FUSE REPLACEMENT .....................................................................25

SYMBOLS

Caution ! Risk of electric shock.

Caution! Refer to the explanation in this Manual

Alternating Current (AC)

Direct Current (DC)

The equipment is protected by double insulation or reinforced

insulation

Earth (Ground)

Audible tone

Battery

Complies with European Directives

Conforms to relevant Australian standards

Canadian Standards Association (NRTL/C)

Do not dispose of this product as unsorted municipal waste.

Contact a qualiﬁed recycler.

SAFETY INFORMATION

The Meter complies with:

IEC/EN 61010-1 3rd Edition Pollution Degree 2, Measurement Category IV 600V

and Measurement Category III 1000V

IEC/EN 61010-2-31 for test leads

EMC IEC/EN 61326-1

Measurement Category IV (CAT IV) is for measurements performed at the

source of the low-voltage installation. Examples are electricity meters and

measurements on primary overcurrent protection devices and ripple control

units.

Measurement Category III (CAT III) is for measurements performed in the

building installation. Examples are measurements on distribution boards,

circuit- breakers, wiring, including cables, bus-bars, junction boxes, switches,

socket-outlets in the ﬁxed installation, and equipment for industrial use

and some other equipment, for example, stationary motors with permanent

connection to the ﬁxed installation.

Warning: Read Before Using

• To avoid possible electrical shock or personal injury, follow these

instructions and use the Meter only as specied in this manual.

• Do not use the Meter or test leads if they appear damaged, or if the

Meter is not operating properly. If in doubt, have the Meter serviced.

• Always use the proper function and range for measurements.

• Before rotating the function range selection switch, disconnect test

probe from circuit under test.

• Verify the Meter’s operation by measuring on a known voltage source.

• Do not apply more than the rated voltage, as marked on the Meter,

between the test probe or between any test probe and earth ground.

• Use the Meter with caution for voltages above 30 Vac rms, 42 Vac peak,

or 60 Vdc. These voltages pose electrical shock hazards.

• Disconnect circuit power and discharge all high-voltage capacitors before

testing resistance.

• Do not use the Meter around explosive gas or vapor.

• When using the test leads, keep your ngers behind the nger guards.

UNPACKING AND INSPECTION

Your shipping carton should include:

1 AM-540 or AM-550 or AM-540-EUR or AM-550-EUR Multimeter

1 Pair of test leads

2 Temperature probe

1 Temperature adaptor

1 Velcro strap

1 9V (6F22) battery (installed)

1 Users manual

1 Carrying case

If any of the items are damaged or missing, return the complete package to

the place of purchase for an exchange.

FEATURES

The multimeter designed for professional HVAC technicians. The AM-540 /

AM-540-EURmeasures a complete range of electrical parameters and features

key functions such as temperature, capacitance to check the motor startup

capacitors, micro amps for ﬂame sensor troubleshooting, and a low pass ﬁlter

to take accurate measurements on variable frequency drives. With built

in ﬂashlight, and non-contact voltage detection the AM-540 is the choice

multimeter for a professional HVAC technician. Safety rated to CAT IV 600V,

CAT III 1000V for the most advanced HVAC troubleshooting needs.

The Amprobe AM-550 / AM-550-EUR is a fully featured multimeter designed

for professional electricians who need to maintain service or troubleshoot

advanced electrical systems. True-rms sensing accurately measures voltage

on systems affected by harmonics; built in ﬂashlight allows you to identify

wires while working in dark or dimly lit conditions, and non-contact voltage

detection allows for quick go-no-go checks without the need for an additional

tool. The AM-550 / AM-550-EUR also features dual input temperature

measurement, a low impedance function to detect stray voltage, and a low

pass ﬁlter to accurately take measurements on variable frequency drives.

Safety rated to CAT IV 600V and CAT III 1000V for use in the most industrial

applications.

• Measurements: AC/DC Voltage up to 1000V, AC/DC current, Resistance,

Frequency, Capacitance, Temperature, Duty Cycle.

• Special Functions:

- Low Z - to detect “ghost” voltages (for AM-550 only)

- Low pass ﬁlter for variable frequency drives

- Non-contact Voltage Detection

- Audible continuity

- Diode Test

• Dual reading backlit LCD display with analog bargraph

• Events:

- Data hold

- MAX / MIN Memory

- Peak Hold (Crest)

- Relative zero mode

• Built in work light (ashlight)

• Built in test leads storage and “third hand holder”

• Warning against improper test leads connection

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