Fluke 323, 324, 325 Instruction Manual

323/324/325

Clamp Meter

Users Manual

PN 4045153
May 2012
© 2012 Fluke Corporation. All rights reserved. Printed in China.
Specifications are subject to change without notice.
All product names are trademarks of their respective companies.

LIMITED WARRANTY AND LIMITATION OF LIABILITY

This Fluke product will be free from defects in material and workmanship for two
years 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 Fluke’s behalf. To obtain service during the warranty
period, contact your nearest Fluke authorized service center to obtain return
authorization information, then send the product to that Service Center with a
description of the problem.

THIS WARRANTY IS YOUR ONLY REMEDY. NO OTHER WARRANTIES, SUCH
AS FITNESS FOR A PARTICULAR PURPOSE, ARE EXPRESSED OR IMPLIED.
FLUKE IS NOT 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.

Fluke Corporation
P.O. Box 9090
Everett, WA 98206-9090
U.S.A.

11/99

Fluke Europe B.V.
P.O. Box 1186
5602 BD Eindhoven
The Netherlands

Table of Contents

Title Page

Introduction ................................................................................................................. 1

How to Contact Fluke ................................................................................................. 1

Safety Information ...................................................................................................... 2

How to Clean the Product .......................................................................................... 9

Specifications ............................................................................................................. 10

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

Mechanical Specifications ...................................................................................... 12

Environmental Specifications ................................................................................. 12

The Meter ................................................................................................................... 14

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323/324/325

Users Manual

ii

Introduction

The Fluke 323/324/325 Clamp Meters (the Product) measure ac and dc voltage, ac current,
resistance, and continuity. The 324 and 325 can also measure capacitance and contact
temperature. The 325 can also measure dc current and frequency. Note that the 325 is shown
in all of the illustrations. For temperature measurement, you must use the included K-Type
Thermocouple.

XWWarning

Read "Safety Information" before you use the Product.

How to Contact Fluke

To contact Fluke, call one of the following telephone numbers:

• Technical Support USA: 1-800-44-FLUKE (1-800-443-5853)

• Calibration/Repair USA: 1-888-99-FLUKE (1-888-993-5853)

• Canada: 1-800-36-FLUKE (1-800-363-5853)

• Europe: [phone]

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Users Manual

• Japan: [phone]

• Singapore: [phone]

• Anywhere in the world: [phone]

Or, visit Fluke's website at www.fluke.com.

To register your product, visit http://register.fluke.com.

To see, print, or download the latest manual supplement, visit

http://us.fluke.com/usen/support/manuals.

Safety Information

A Warning identifies conditions and procedures that are dangerous to the user. A

Caution identifies conditions and procedures that can cause damage to the Product or the

equipment under test.

Table 1 tells you about symbols used on the Product and in this manual.

XWWarning

To prevent personal injury, use the Product only as specified, or the
protection supplied by the Product can be compromised.

2

Clamp Meter

Safety Information

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

• Use only correct measurement category (CAT), voltage, and amperage

rated probes, test leads, and adapters for the measurement.

• Do not touch voltages > 30 V ac rms, 42 V ac peak, or 60 V dc.

• Carefully read all instructions.

• Hold the Product behind the tactile barrier. See The Clamp Meter, item

.

• Do not exceed the Measurement Category (CAT) rating of the lowest

rated individual component of a Product, probe, or accessory.

• Do not measure current while the test leads are in the input jacks.

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

environments.

• Limit operation to the specified measurement category, voltage, or

amperage ratings.

• Do not work alone.

• Do not apply more than the rated voltage, between the terminals or

between each terminal and earth ground.

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Users Manual

• Comply with local and national safety codes. Use personal protective

equipment (approved rubber gloves, face protection, and flame­resistant clothes) to prevent shock and arc blast injury where
hazardous live conductors are exposed.

• Replace the batteries when the low battery indicator shows to prevent

incorrect measurements.

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

Product.

• Measure a known voltage first to make sure that the Product operates

correctly.

• Remove all probes, test leads, and accessories that are not necessary

for the measurement.

• Only use probes, test leads, and accessories that have the same

measurement category and voltage rating as the Product.

• Keep fingers behind the finger guards on the probes.

4

Clamp Meter

Safety Information

• Connect the common test lead before the live test lead and remove the

live test lead before the common test lead.

• Remove all probes, test leads, and accessories before the battery door

is opened.

• Do not use and disable the Product if it is damaged.

• Do not use the Product if it operates incorrectly.

• Do not use test leads if they are damaged. Examine the test leads for

damaged insulation, exposed metal. Check test lead continuity.

• Before each use, examine the Product. Look for cracks or missing

pieces of the clamp housing. Also look for loose or weakened
components. Carefully examine the insulation around the jaws. See The
Clamp Meter, item .

• Examine the case before you use the Product. Look for cracks or

missing plastic. Carefully look at the insulation around the terminals.

• Read all safety Information before you use the Product.

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Users Manual

• Remove batteries to prevent battery leakage and damage to the Product

if it is not used for an extended period.

• Remove batteries to prevent battery leakage and damage to the Product

if is to be stored above its operating temperature.

WCaution

To avoid possible damage to the Product or to equipment under test, use a
thermocouple rated for the temperatures to be measured. The Product is
rated for -10.0 °C to +400.0 °C and 14 °F to 752 °F. The included type-K
thermocouple is rated to 260 °C.

6

Clamp Meter

Safety Information

Table 1. Symbols

Symbol Meaning Symbol Meaning







W

X



AC (Alternating Current)

DC (Direct Current)

AC and DC Current

Risk of Danger. Important
information. See Manual.

Hazardous voltage. Risk of
electric shock.

Conforms to relevant
Australian standards.

P

T

Æ

®

Earth ground

J

Do not dispose of this product as
unsorted municipal waste. Go to

~

Fluke’s website for recycling
information.

Conforms to European Union
directives.

Double insulated

This product has been tested to the
requirements of CAN/CSA-C22.2
No. 61010-1, second edition, including
Amendment 1, or a later version of the
same standard incorporating the same
level of testing requirements.

German certifying body.

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Users Manual

Table 1. Symbols (cont.)

Symbol Meaning Symbol Meaning

Application around and removal

M Battery

CAT III equipment is designed to
protect against transients in
equipment in fixed equipment

CAT III

8

installations, such as distribution
panels, feeders and short branch
circuits, and lighting systems in
large buildings.

The Measurement Category (CAT) and voltage rating of combinations of test
probes, test probe accessories, current clamp accessories, and the Product is the
LOWEST rating of individual components.

,

CAT IV

Note

from HAZARDOUS LIVE
conductors is permitted.

CAT IV equipment is designed
to protect against transients
from the primary supply level,
such as an electricity meter or
an overhead or underground
utility service.

Clamp Meter

How to Clean the Product

How to Clean the Product

Regularly wipe the case with a damp cloth and weak detergent.

W Caution

To prevent damage to the Product, do not use abrasives or solvents to clean
the Product case.

To clean the Product Jaw:

1. Examine the jaw mating surface to make sure it is clean. If there is unwanted material
(including rust), jaw closure will not be correct and there will be measurement errors.

2. Open the jaws and clean the clamp metal ends with a lightly oiled cloth.

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Users Manual

Specifications

Electrical Specifications

AC Current (Jaw)

Range

323 ..................................................... 400.0 A

324, 325 ............................................. (40.00, 400.0) A

Resolution

323 ..................................................... 0.1 A

324, 325 ............................................. (0.01, 0.1) A

Accuracy ................................................ 2.0 % ±5 digits (45 – 65 Hz)

2.5 % ±5 digits (65 – 400 Hz)

DC Current with Jaw (325)

Range...................................................... (40.00, 400.0) A

Resolution ............................................... (0.01, 0.1) A

Accuracy ................................................. 2.0 % ± 5 digits

AC Voltage

Range...................................................... 600.0 V

Resolution ............................................... 0.1 V

Accuracy (45 – 400 Hz) .......................... 1.5 % ± 5 digits

10

Clamp Meter

Specifications

DC Voltage

Range .................................................... 600.0 V

Resolution ............................................... 0.1 V

Accuracy ................................................. 1 % ± 5 digits

Resistance

Range

323, 324 ............................................. (400.0, 4000) Ω

325 ..................................................... (400.0, 4000, 40000) Ω

Resolution ............................................... (0.1, 1, 10) Ω

Accuracy ................................................. 1 % ±5 digits

Continuity Beeper

323 .................................................... ≤70 Ω

324/325 ............................................. ≤30 Ω

Capacitance (324, 325)

Range ..................................................... (100.0, 1000) μF

Resolution ............................................... (0.1, 1) μF

Accuracy ................................................. 1 % ±4 digits

Frequency (325)

Range ..................................................... 5.0 to 500.0 Hz

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Users Manual

Resolution ............................................... 0.1 Hz

Accuracy ................................................. 0.5 % ±4 digits

Trigger Level ........................................... 5 to 10 Hz, ≥10 A

10 to 100 Hz, ≥5 A
100 to 500 Hz, ≥10 A

Contact Temperature (324, 325)

Range...................................................... -10.0 °C to 400.0 °C

Resolution ............................................... 0.1 °C

Accuracy ................................................. 1 % ±8 digits

Note: Temperature uncertainty (accuracy) does not include error of the thermocouple probe.

Mechanical Specifications

Size (L x W x H) ..................................... (207 x 75 x 34) mm

Weight

323 ..................................................... 265 g

324 ..................................................... 208 g

325 ..................................................... 283 g

Environmental Specifications

Operating Temperature ........................... -10 °C to +50 °C

Storage Temp ......................................... -30 °C to +60 °C

12

Clamp Meter

Specifications

Operating Humidity ................................. Non Condensing (≤10 °C)

≤90 % RH (at 10 °C to 30 °C)
≤75 % RH (at 30 °C to 40 °C)
≤45 % RH (at 40 °C to 50 °C)
(Without Condensation)

Operating Altitude ................................... 2000 meters

Storage Altitude ...................................... 12,000 meters

EMI, EMC ................................................ Meets all applicable requirements in EN/IEC 61326-1

Temperature Coefficients ........................ Add 0.1 x specified accuracy for each degree C

Over Voltage Category ........................... CAT IV 300 V, CAT III 600 V

Safety Compliance .................................. EN/IEC 61010-1, Pollution Degree 2

Agency Approvals ................................... Æ Complies with CAN/CSA-C22.2 No. 61010-1,

2nd edition, including Amendment 1., , ®

IP Rating ................................................. IP 30 Per IEC 60529:2001; Non-operating

Batteries .................................................. 2 AAA, NEDA 24A, IEC LR03

above 28 °C or below 18 °C

EN/IEC 61010-2-032
EN/IEC 61010-031:2002/A1:2008

P

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323/324/325

Users Manual

The Meter

1

14

2

600V

300V

CAT

CAT

325

600VCAT

300V

CAT

TRUE RMS CLAMP METER

gtq008.eps

Clamp Meter

The Meter

OFF

20

323

324/325

ON

ON

MAXMIN

k

C

V

A

AC

F

Hz

DC

F

gtq001.eps

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Users Manual

2:00

16

MIN

MAX

ON

2:00

gtq002.eps

Clamp Meter

The Meter

CAT

323, 324

325

600V
CAT
300V

TRUE RMS CLAMP METER

325

600VCAT
300V

CAT

CAT

600V
CAT
300V

325

TRUE RMS CLAMP METER

600VCAT
300V

CAT

gtq003.eps

17

323/324/325

300V

CAT

Users Manual

18

323 V dc -

323 V ac -

V

V

324, 325
V dc & V ac -

or

>30 V

V

V

gtq004.eps

Clamp Meter

The Meter

<70

323
324/325

<30

CAT

600V

CAT

300V

325

TRUE RMS CLAMP METER

600VCAT
300V

CAT

CAT

600V
CAT
300V

325

TRUE RMS CLAMP METER

600VCAT
300V

CAT

gtq005.eps

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Users Manual

HOLD

AC/DC & ZERO

ZERO

AC/DC

20

325

TRUE RMS CLAMP METER

600VCAT
300V

CAT

20 V

ZERO

AC/DC

>

30 V

ZERO

AC/DC

2 sec

gtq006.eps

Clamp Meter

The Meter

324, 325

325

TRUE RMS CLAMP METER

600VCAT
300V

CAT

gtq009.eps

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Users Manual

22

AAA

gtq007.eps