Amprobe ALC-110 Operating Manual

ALC-110

Leakage Current Clamp

User Manual

ENG FRE

SPA

ALC-110

Leakage Current Clamp

User Manual

English

Limited Warranty and Limitation of Liability

Your Amprobe product will be free from defects in material and workmanship for one 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 the behalf of Amprobe. To obtain service during the warranty period, return the product with proof of purchase to an authorized Amprobe 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 STATUTORY

- 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 Amprobe 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.

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 distributor for an exchange for the same or like product. Please check the “Where to Buy” section on 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 an Amprobe Service Center (see address below).

Non-warranty Repairs and Replacement – United States and Canada

Non-warranty repairs in the United States and Canada should be sent to an Amprobe Service Center. Call Amprobe or inquire at your point of purchase for current repair and replacement rates.

USA: Canada: Amprobe Amprobe Everett, WA 98203 Mississauga, ON L4Z 1X9 Tel: 877-AMPROBE (267-7623) Tel: 905-890-7600

Non-warranty Repairs and Replacement – Europe

European non-warranty units can be replaced by your BehaAmprobe distributor for a nominal charge. Please check the “Where to Buy” section on beha-amprobe.com for a list of distributors near you.

Beha-Amprobe

Division and reg. trademark of Fluke Corp. (USA)

Germany* United Kingdom In den Engematten 14 52 Hurricane Way 79286 Glottertal Norwich, Norfolk Germany NR6 6JB United Kingdom Phone: +49 (0) 7684 8009 - 0 Phone: +44 (0) 1603 25 6662 beha-amprobe.de beha-amprobe.com

The Netherlands - Headquarters** Science Park Eindhoven 5110 5692 EC Son The Netherlands Phone: +31 (0) 40 267 51 00 beha-amprobe.com

*(Correspondence only – no repair or replacement available from this address. European customers please contact your distributor.) **single contact address in EEA Fluke Europe BV

Leakage Current Clamp

CONTENTS

SYMBOLS ............................................................... 2

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

UNPACKING AND INSPECTION .............................4

FEATURES AND APPLICATIONS ............................. 4

DESCRIPTION OF THE INSTRUMENT ..................... 5

DESCRIPTION OF THE LCD .................................... 5

POWER ON/OFF ..................................................... 6

AUTO BACKLIGHT ................................................. 6

AC CURRENT MEASUREMENT .............................. 7

LEAKAGE CURRENT MEASUREMENT ................... 8

DATA HOLD........................................................... 10

MAX HOLD ........................................................... 10

LOW PASS FILTER (50-60 HZ)

& APPLIANCE FILTER ............................................. 11

SPECIFICATIONS ....................................................13

ELECTRICAL SPECIFICATIONS ...............................15

MAINTENANCE ..................................................... 17

BATTERY REPLACEMENT ...................................... 17

SYMBOLS





�

CAT III

> 30 A/m









Caution

WARNING. HAZARDOUS VOLTAGE Risk of electric shock

Consult user documentation

Application around and removal from uninsulated hazardous live conductors is permitted

Measurement Category III is applicable to test and measuring circuits connected to the distribution part of the building’s low-voltage MAINS installation

Alternating current

Do not operate within external low frequency magnetic ﬁelds >30 A/m

Equipment protected throughout by DOUBLE INSULATION or REINFORCED INSULATION

Battery

Conforms to European Union directives

Certiﬁed by CSA Group to North American safety standards

Conforms to relevant Australian EMC standards

This product complies with the WEEE Directive marking requirements. The afﬁxed label indicates that you must not discard this electrical/electronic product in domestic household waste. Product Category: With reference to the equipment types in the WEEE Directive Annex I, this product is classed as category 9 “Monitoring and Control Instrumentation” product. Do not dispose of this product as unsorted municipal waste.

SAFETY INFORMATION

The meter complies with:

• IEC/EN 61010-1 3rd Ed., UL61010-1 3rd Ed. and CAN/ CSA C22.2 No. 61010-1-12 to CAT III 600 V, pollution degree 2.

• IEC/EN 61010-2-032

• IEC/EN 61557-13

• EMC IEC/EN 61326-1 and IEC/EN 61326-2-2

Measurement Category III (CAT III) is for measurements performed in a building installation. Examples include measurements on distribution boards, circuit breakers and wiring — including cables, bus-bars, junction boxes, switches, socket-outlets in a ﬁxed installation — as well as equipment for industrial use and stationary motors with a permanent connection to the ﬁxed installation.

CENELEC Directives

The instrument conforms to CENELEC Low-voltage directive 2014/35/EU and Electromagnetic compatibility directive 2014/30/EU

 Warning

To prevent possible electrical shock, ﬁre, or personal injury:

• Read all safety information before you use the Product.

• Carefully read all instructions.

• Use the Product only as speciﬁed, or the protection supplied by the Product can be compromised.

• Do not use the Product around explosive gas, vapor, or in damp or wet environments.

• Do not touch voltages >30 V AC rms, 42 V AC peak, or 60 V DC.

• Before each use, examine the Product. Look for cracks or missing pieces of the Product housing. Also look for loose or weakened components. Carefully examine the insulation around the jaws.

• Do not use the Product if it is damaged.

• Limit operation to the speciﬁed measurement category, voltage, or amperage ratings.

• Use extreme caution when working around bare conductors or busbars. Contact with the conductor could result in electric shock.

• Do not hold the Product anywhere beyond the tactile barrier.

• When measuring current, center the conductor in the clamp.

• Remove the batteries if the Product is not used for an extended period of time, or if stored in temperatures above 140 °F (60 °C). If the batteries are not removed, battery leakage can damage the Product.

• Replace the batteries when the low battery indicator shows to prevent incorrect measurements.

• Use only 1.5V AAA batteries, properly installed in the Product case, to power the Product.

• Use only 1.5V AAA alkaline batteries and follow all battery care from the manufacturer.

• Never remove the battery cover or open the case of the Product without ﬁrst removing the jaws from a live conductor.

• The battery door must be closed and locked before you operate the Product.

• Do not leave the Product on or near objects of high temperature.

• For use by competent persons only.

• For safe operation of the Product, do not operate within external low frequency magnetic ﬁelds >30 A/m. Ensure the jaw is locked before making measurements.

• Have an approved technician repair the Product.

 Caution

• For best accuracy please consider following impacts:

- use whenever possible optimized position of the clamp when the conductor is positioned is in the center of jaw and the angle between conductor and jaw is 90°

- reduce inﬂuences by external magnetic ﬁeld (for impact see error E11 in speciﬁcation table)

- reduce inﬂuences by contamination of the jaw (recommendation for cleaning see in chapter maintenance)

• The measurement of differential current will be inﬂuenced by the load current (for inﬂuence of load current, see error E12 in Speciﬁcation table).

• If the Product is used in the vicinity of equipment that generates electromagnetic interference, the display may become unstable or the measurements shown may be subject to large errors.

• Do not subject the jaw to unreasonably strong shock, vibration or force.

• If dust gets into the top of the jaw, remove it immediately. Do not close the jaw when dust is trapped

in its joints as the sensor may be damaged.

UNPACKING AND INSPECTION

Your package should include:

1 ALC-110 Leakage Current Clamp 2 1.5 V AAA batteries 1 User manual 1 Soft carrying case

If any of the items are damaged or missing, return the complete package to the place of purchase for an exchange.

Note: Batteries do not come installed. Please refer to the Battery Replacement section for further instructions.

FEATURES AND APPLICATIONS

Features

• CAT III 600 V safety rated

• Leakage clamp acc. IEC/EN61557-13, VDE 0413-13

• Low inﬂuence of external low frequency magnetic ﬁelds @ I operating class 2, ≤ 30A/m

• True-rms measurements for best accuracy when measuring complex, non-sinusoidal waveforms

• Highest resolution of 0.001 mA, measure up to 60 A: Range: 6 mA, resolution of 0.001 mA Range: 60 mA, resolution of 0.01 m Range: 600 mA, resolution of 0.1 mA Range: 6 A, resolution of 0.001 A Range: 60 A, resolution of 0.01 A

• Selectable limits: 3.5 mA, 10 mA, 12 mA, 0.25 mA, 0.5 mA

• Selectable ﬁlter function to remove unwanted noise:

- appliance ﬁlter (acc. IEC/EN 61557-16),

- 50/60 Hz ﬁlter

- no ﬁlter

• Frequency range 15 Hz to 1 kHz to cover railway and industrial application

• Max and data hold

• Mechanical jaw lock

• 1.2 in (30 mm) jaw opening

• Auto backlight

• Auto power off

Applications

• Measurement of earth leakage current.

• Measurement of differential leakage currents.

• Measuring leakage current through the earth (PE) conductor.

• Tracing the source of earth leakage current.

• Measurement of current consumption of appliances in service or customer service sector without interruption to the circuit.

3.5 mA … 600 mA / 40 Hz to 1 kHz:

DESCRIPTION OF THE INSTRUMENT

6 7

Jaw

Hand barrier

Jaw unlock

LCD

Auto backlight sensor

Power

DESCRIPTION OF THE LCD

2 3

Auto power off

Data/Max hold

Warning & caution

Low battery

5 6 7

Data HOLD

(for Max HOLD press for >2 sec)

Limit

Range

(for Filter press for >2 sec)

Limit function Bar graph Appliance ﬁlter / 50-60 Hz ﬁlter

POWER ON/OFF

Press > 1 sec

The meter will display battery capacity when powering up. Please replace the battery when less than 10% is shown.

AUTO BACKLIGHT

AC CURRENT MEASUREMENT

1.2 in

(30 mm)

Hold to unlock

Position Error

When measuring current, ensure the cable is located in the center of the clamp to avoid position errors.



CAT III 600V with respect to earth for the jaw.

Hand Guard Barrier



Do not hold the meter above the Barrier

LEAKAGE CURRENT MEASUREMENT

The leakage current flows when an unintentional electrical connection occurs between an energized part of the electrical system and the earth/ground. The desired value of leakage current should be 0 A. Check applicable regulations and standards for allowable limits of leakage current.

For properly grounded systems, in case of the fault, leakage current should be conducted via earth conductor (PE) (Figure 1). We can measure such current directly in a earth conductor using a leakage clamp meter.

In some cases, specifically when equipment is not properly grounded, the leakage current may flow through other paths. Use differential current measurement methods to verify such current leaks (Figure 2, Figure 3, Figure 4). Clamp a leakage current meter around all active conductors (hot and neutrals), but without any earth conductor. An electromagnetic field around all conductors should cancel each other if there is no current leak and clamp meter should read 0A. If there is a leak, there will be imbalance between electromagnetic fields, and the clamp meter will read the actual value of that leakage current.

Leakage current measurement process

1. Turn the meter on.

2. Make sure the jaw is closed and the meter is away from conductors and other sources of electromagnetic ﬁelds.

3. Clamp the meter around a earth conductor. The meter will indicate leakage current in earth conductor.

4. Clamp the meter around all active conductors, hot and neutrals (but without earth conductors). The meter will indicate total system leakage current that consists of earth conductor current as well as any other stray current leakage.

Load

Figure 1: Direct Method

Measurement of earth (PE) leakage current

Load

1ø2W

Figure 2

Load

3ø3W

Figure 3

Load

3ø4W

Figure 2, 3 and 4: Differential Method

Measurement of differential leakage current

Figure 4

DATA HOLD

MAX HOLD

20A 0A

Press

Press > 2 sec

LOW PASS FILTER (50-60 HZ) & APPLIANCE FILTER

Low Pass and Appliance filters are used to filter out high frequency noise that affect precise measurement of the meter.

• Use Low Pass 50/60Hz ﬁlter to perform measurements on equipment driven by Variable Frequency Drives (VFDs) or affected by high frequency noise. Signiﬁcant difference in reading between measurement with and without low pass ﬁlter may indicate presence of harmonics.

• Use Appliance Filter to conduct leakage current measurements of appliances in accordance with IEC/EN 61557-16 regulation requirements.

Wide Mode

Appliance Filter 50-60 Hz

Auto/ Manual Range

20A

Auto Range Manual Range

20A

LIMIT Limit selection:

The LIMIT function offers 5 limit values (3.5 mA / 10 mA / 12 mA /

0.25 mA / 0.5 mA) in accordance with safety standards.

1. Continue pressing LIMIT button until desired limit value is selected. The unit will be looping between 3.5 mA / 10 mA / 12 mA / 0.25 mA / 0.5 mA values.

2. When desired value is selected wait 2 sec to automatically apply selection. The LIMIT symbol will be displayed on the LCD to indicate that the function is active.

3. Verify the selection by pressing the LIMIT button one time. The unit will display the selected value for 2 seconds.

4. To disable the LIMIT function, press the LIMIT button for >2 sec.

Display when limit is exceeded:

The internal buzzer will continue beeping and the display will flash and show a warning symbol when the measurements exceeds the selected limit value.

Auto Power Off

20 min

Disable Auto Power Off

Hold LIMIT Button down and power up

SPECIFICATIONS

Display 6000 counts digit large scale

Sensing True RMS

Update rate 5 per second nominal

32 °F to 86 °F (0 °C to 30 °C)

Operating temperature and relative humidity

Storage temperature

Jaw opening 1.2 in (30 mm) max.

Pollution degree 2 IP rating IP20 Operating altitude ≤ 2000 m Overload

protection Measurement