305 - Measurement FLUKE - Free user manual and instructions

Product Type	Clamp Meter
Brand	Fluke
Model	305
AC Current Range	0 to 400 A (basic accuracy ±2%)
DC Current Range	0 to 400 A (basic accuracy ±2%)
AC Voltage Range	0 to 600 V (basic accuracy ±1.5%)
DC Voltage Range	0 to 600 V (basic accuracy ±1%)
Resistance Range	0 to 4000 Ω (basic accuracy ±1%)
Continuity Test	Buzzer below 50 Ω
Diode Test	Yes (0.6 V typical)
Display	4000-count LCD with backlight
Jaw Opening	30 mm (1.2 inches)
Power Supply	Two AAA 1.5 V batteries
Dimensions (H x W x D)	200 x 66 x 35 mm (7.9 x 2.6 x 1.4 in)
Weight	220 g (0.49 lb) including batteries
Safety Rating	CAT III 600 V
Auto Power Off	Yes, after 15 minutes of inactivity
Data Hold	Yes (press D-H button)
Low Battery Indicator	Battery symbol on display
Operating Temperature	0°C to 40°C (32°F to 104°F)
Storage Temperature	-20°C to 60°C (-4°F to 140°F)
Maintenance	Clean with damp cloth and mild detergent; do not use abrasives
Spare Parts	Test leads, batteries, and holster
Reparability	Repairable by authorized service centers; no user serviceable parts inside
Warranty	1 year (typical)

Frequently Asked Questions - 305 FLUKE

How to measure AC current with the Fluke 305?

Set the rotary switch to the AC current range (400 A). Clamp the jaw around one conductor only. Read the value on the display. Ensure the conductor is centered for accurate reading.

What batteries does the Fluke 305 use?

The meter uses two AAA 1.5 V batteries. Replace them when the low battery indicator appears. Use alkaline batteries for best performance.

How to replace the batteries?

Turn off the meter. Remove the battery cover screw and lift the cover. Replace old batteries with new ones, observing polarity. Reattach the cover and screw.

What is the maximum voltage the Fluke 305 can measure?

The AC and DC voltage range is up to 600 V. Do not exceed this limit. The meter is rated CAT III 600 V for safety.

How to perform a continuity test?

Set the rotary switch to the continuity symbol (sound waves). Connect the test leads to the circuit. The buzzer sounds if resistance is below 50 Ω.

Why does my Fluke 305 not turn on?

Check the batteries for proper installation and charge. Ensure the rotary switch is not in the OFF position. If still no power, replace the batteries.

How to clean the Fluke 305?

Use a damp cloth with mild detergent to clean the meter. Do not use solvents or abrasive cleaners. Dry thoroughly before use.

Can the Fluke 305 measure AC/DC voltage simultaneously?

No, you must select either AC or DC voltage using the rotary switch. The meter measures only one mode at a time.

What does the 'Hold' button do?

Press the H key to freeze the current reading on the display. Press again to release. Useful for capturing measurements in hard-to-see locations.

Is the Fluke 305 safe for industrial environments?

Yes, it is rated CAT III 600 V, suitable for distribution boards and commercial/industrial environments. Always follow safety guidelines.

USER MANUAL 305 FLUKE

June 2012, Rev.1, 12/13

© 2012, 2013 Fluke Corporation. All rights reserved. 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.

Fluke Europe B.V.

P.O. Box 1186

5602 BD Eindhoven

The Netherlands

Table of Contents

Title

Introduction....1

How to Contact Fluke .... 1

Safety Information 2

How to Clean the Product 8

Specifications 9

Electrical Specifications....9

Mechanical Specifications....10

Environmental Specifications 10

The Clamp Meter....12

Introduction

The Fluke 305 Clamp Meter (the Product) measures ac and dc voltage, ac current, resistance, and continuity.

⚠ Warning

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]
• Mainland China: [phone]
• 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 could cause damage to the Product or the equipment under test.

International electrical symbols used on the Product and in this manual are explained in Table 1.

⚠ Warning

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

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

Clamp Safety

• Hold the Product behind the tactile barrier. See The Clamp Meter item ①.
• Do not use test leads if they are damaged. Examine the test leads for damaged insulation or exposed metal. Check test lead continuity.
• 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.
• Comply with local and national safety codes. Use personal protective equipment (approved rubber gloves, face protection, and flame-resistant 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.
• Use only probes, test leads, and adapters supplied with the Product.
- Remove all probes, test leads, and accessories that are not necessary for the measurement.
- Keep fingers behind the finger guards on the probes.
- Connect the common test lead before the live test lead and remove the live test lead before the common test lead.

Clamp Safety

• Do not use the Product if it is damaged.
• Do not use the Product if it operates incorrectly.
• 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.
• 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.
• 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.
• Do not use a current measurement as an indication that a circuit is safe to touch. A voltage measurement is necessary to know if a circuit is hazardous.

Table 1. Symbols

Symbol	Meaning		Symbol	Meaning
	AC (Alternating Current)	[C426]	Earth ground
[8XTD]	DC (Direct Current)	[9442]	Conforms to relevant South Korean EMC Standards.
	Hazardous voltage. Risk of electric shock.	[H047]	Conforms to European Union directives.
	Risk of Danger. Important information. See Manual.	[67CK]	Double insulated
	Battery	[2408]	Application around and removal from HAZARDOUS LIVE conductors is permitted.
	This product complies with the WEEE Directive (2002/96/EC) 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. Go to Fluke's website for recycling information.

Clamp Safety

Table 1. Symbols (cont)

Symbol	Meaning	Symbol	Meaning
CAT II	MEASUREMENT CATEGORY II is applicable to test and measuring circuits connected directly to utilization points (socket outlets and similar points) of the low voltage MAINS installation.	CAT III	MEASUREMENT CATEGORY III is applicable to test and measuring circuits connected to the distribution part of the building's low-voltage MAINS installation.
CAT IV	MEASUREMENT CATEGORY IV is applicable to test and measuring circuits connected at the source of the building's low voltage MAINS installation.		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.

Note

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.

How to Clean the Product

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

Caution

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

Specifications

Electrical Specifications

AC Current (Jaw)

Range 999.9 A

Resolution 0.1 A

Accuracy 1.5 % ±5 digits (45 Hz to 400 Hz)

Note

Add 2 % for position sensitivity.

AC Voltage

Range 600.0 V

Resolution 0.1 V

Accuracy 1.5 % ± 5 digits (45 Hz to 400 Hz)

DC Voltage

Range 600.0 V

Resolution 0.1 V

Accuracy 1% ± 5 digits

Resistance

Range 400.0 Ω/4000 Ω

Resolution 0.1 Ω/1 Ω

Accuracy .... 1 % ±5 digits

Continuity Beeper....≤70 Ω

Mechanical Specifications

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

Weight....205 g

Environmental Specifications

Operating Temperature....0 °C to +40 °C

Storage Temp ....-30 °C to +60 °C

Operating Humidity ......Non condensing (<10 °C)

≤90 % RH (at 10 °C to 30 °C)

≤75 % RH (at 30 °C to 40 °C)

(Without

Condensation)

Operating Altitude 2000 meters

Storage Altitude 12,000 meters

EMI, EMC ...... Meets all applicable requirements in

EN/IEC 61326-1

Electromagnetic Compatibility....Applies to use in Korea only. Class A Equipment (Industrial Broadcasting & Communication Equipment) [1]

[1] This product meets requirements for industrial (Class A) electromagnetic wave equipment and the seller or user should take notice of it. This equipment is intended for use in business environments and is not to be used in homes.

Temperature Coefficients....Add 0.1 x specified accuracy for each °C above 28 °C or below 18 °C

Measurement Category .... CAT IV 300 V, CAT III 600 V

Safety Compliance ...... EN/IEC 61010-1, Pollution Degree 2 EN/IEC 61010-2-032 EN/IEC 61010-031

CE

Batteries 2 AAA, NEDA 24A, IEC LR03

IP Rating IP 30 Per IEC 60529; Non-operating

The Clamp Meter

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HOLD

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The Clamp Meter

Clamp

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