OWON B35(T) User Manual

Digital Multimeter

User Manual

B35(T)

D35(T)

Note: "T" indicates true RMS (optional)

WWW.OWON.COM

Mar.2015 edition V1.1

Copyright © Lilliput Company. All rights reserved.

The Lilliput's products are under the protection of the patent rights, including ones which have already obtained the patent rights and those which are applying for. The information in this manual will replace all that in the materials published originally.

The information in this manual was correct at the time of printing. However, will continue to improve products and reserves the rights to change specification at any time without notice.

is the registered trademark of the Lilliput Company.

Fujian Lilliput Optoelectronics Technology Co.,Ltd.: The Mansion of Optoelectronics, No.19, Heming Road, Lantian Industrial Zone, Zhangzhou, Fujian, China

Tel:[phone]	Fax:[phone]
Web: www.owon.com	Mail: [e-mail]

General Warranty

Lilliput warrants that the product will be free from defects in materials and workmanship for a period of 1 year from the date of purchase of the product by the original purchaser from the Lilliput Company. This warranty only applies to the original purchaser and is not transferable to the third party, and does not apply to fuses, disposable batteries or to any product which has been misused, altered, neglected or damaged by accident or abnormal conditions of operation or handling.

If the product proves defective during the warranty period, Lilliput either will repair the defective product without charge for parts and labor, or will provide a replacement in exchange for the defective product. Parts, modules and replacement products used by Lilliput for warranty work may be new or reconditioned to like new performance. All replaced parts, modules and products become the property of Lilliput.

In order to obtain service under this warranty, Customer must notify Lilliput of the defect before the expiration of the warranty period. Customer shall be responsible for packaging and shipping the defective product to the service center designated by Lilliput, and with a copy of customer proof of purchase.

This warranty shall not apply to any defect, failure or damage caused by improper use or improper or inadequate maintenance and care. Lilliput shall not be obligated to furnish service under this warranty a) to repair damage resulting from attempts by personnel other than Lilliput representatives to install, repair or service the product; b) to repair damage resulting from improper use or connection to incompatible equipment; c) to repair any damage or malfunction caused by the use of non-Lilliput supplies; or d) to service a product that has been modified or integrated with other products when the effect of such modification or integration increases the time or difficulty of servicing the product.

Please contact the nearest Lilliput's Sales and Service Offices for services or a complete copy of the warranty statement.

For better after-sales service, please visit www.owon.com and register the purchased product online.

Excepting the after-sales services provided in this summary or the applicable warranty statements, Lilliput will not offer any guarantee for maintenance definitely declared or hinted, including but not limited to the implied guarantee for marketability and special-purpose acceptability. Lilliput should not take any responsibilities for any indirect, special or consequent damages.

	Table of Contents
1.Safety Information ....................................................................................................	1
Safety Considerations...............................................................................................................	1
Measurement Category............................................................................................................	3
Safety Terms and Symbols........................................................................................................	4
2.General Characteristics .............................................................................................	5
3.Quick Start................................................................................................................	6
General Inspection ...................................................................................................................	6
Install the Batteries ..................................................................................................................	6
Adjusting the Tilt Stand ............................................................................................................	7
Power On..................................................................................................................................	7
Sleep Mode ..............................................................................................................................	7
Backlight Control ......................................................................................................................	7
Selecting the Range ..................................................................................................................	8
Multimeter in Brief...................................................................................................................	8
Front panel...............................................................................................................................................	8
Rotary switch............................................................................................................................................	9
Keypad......................................................................................................................................................	9
Display screen.........................................................................................................................................	10
Input terminals .......................................................................................................................................	12
4.Making Measurements ............................................................................................	13
Measuring AC or DC Voltage...................................................................................................	13
Measuring Resistance.............................................................................................................	13
Testing Diodes........................................................................................................................	14
Testing for Continuity.............................................................................................................	14
Measuring Capacitance ..........................................................................................................	14
Measuring Frequency.............................................................................................................	15
Measuring Transistor..............................................................................................................	15
Measuring Temperature.........................................................................................................	15
Measuring DC or AC Current...................................................................................................	16
5.Multimeter Features................................................................................................	17
Data Hold Mode .....................................................................................................................	17
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Capturing Max. and Min. Values ............................................................................................	17
Making Relative Measurements.............................................................................................	17
Buzzer Feature........................................................................................................................	18
6.Bluetooth Function – B35(T) only ............................................................................	19
How to Connect......................................................................................................................	19
User Interface.........................................................................................................................	21
Operations..............................................................................................................................	22
7.Technical Specifications ..........................................................................................	24
8.Appendix.................................................................................................................	26
Appendix A: Enclosure............................................................................................................	26
Appendix B: General Care and Cleaning .................................................................................	26
Appendix C: Fuse Replacement ..............................................................................................	27

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1.Safety Information

1. Safety Information

Safety Considerations

Before any operations, please read the following safety precautions to avoid any possible bodily injury and prevent damage to this product or any other products connected. To avoid any contingent danger, use this product only as specified.

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

Do not use the multimeter if it is damaged. Before you use the multimeter, inspect the case. Look for cracks or missing plastic. Pay particular attention to the insulation surrounding the connectors.

Do not use the test leads provided for other products. Use only the certified test leads specified for this product.

Inspect the test leads for damaged insulation or exposed metal.

Before use, verify the multimeter's operation by measuring a known voltage.

Only the qualified technicians can implement the maintenance.

Always use the specified battery type. The power for the multimeter is supplied with two standard AA 1.5 V batteries. Observe the correct polarity markings before you insert the batteries to ensure proper insertion of the batteries in the multimeter.

Check all Terminal Ratings. To avoid fire or shock hazard, check all ratings and markers of this product. Refer to the user's manual for more information about ratings before connecting to the multimeter.

Do not operate the multimeter with the cover or portions of the cover removed or loosened.

Use Proper Fuse. Use only the specified type and rating fuse for the multimeter.

Do not operate if in any doubt. If you suspect damage occurs to the multimeter, have it inspected by qualified service personnel before further operations.

To avoid electric shock, do not operate this product in wet or damp conditions.

Do not operate in an explosive atmosphere.

Keep product surfaces clean and dry.

Do not apply more than the rated voltage (as marked on the multimeter) between terminals, or between terminal and earth ground.

When measuring current, turn off the circuit power before connecting the multimeter in the circuit. Remember to place the multimeter in series with the circuit.

When servicing the multimeter, use only the specified replacement parts.

Use caution when working above 60 V DC, 30 V AC RMS, or 42.4 V peak. Such voltages pose a shock hazard.

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1.Safety Information

When using the test leads, keep your fingers behind the finger guards on the test leads.

Remove the test leads from the multimeter before you open the battery cover.

To avoid false readings, which may lead to possible electric shock or personal injury, replace the battery as soon as the low battery indicator appears and flashes.

Disconnect circuit power and discharge all high-voltage capacitors before testing resistance, continuity, diodes, or capacitance.

Use the proper terminals, function, and range for your measurements. When the range of the value to be measured is unknown, set the rotary switch position as the highest range, choose the auto ranging mode. To avoid damages to the multimeter, do not exceed the maximum limits of the input values shown in the technical specification tables.

Connect the common test lead before you connect the live test lead. When you disconnect the leads, disconnect the live test lead first.

Before changing functions, disconnect the test leads from the circuit under test.

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1.Safety Information

Measurement Category

The multimeter has a safety rating of 1000 V, CAT III.

Measurement category definition

Measurement CAT I applies to measurements performed on circuits not directly connected to the AC mains. Examples are measurements on circuits not derived from the AC mains and specially protected (internal) mainsderived circuits.

Measurement CAT II applies to protect against transients from energy-consuming equipment supplied from the fixed installation, such as TVs, PCs, portable tools, and other household circuits.

Measurement CAT III applies to protect against transients in equipment in fixed equipment installations, such as distribution panels, feeders and short branch circuits, and lighting systems in large buildings.

Measurement CAT IV applies to measurements performed at the source of the lowvoltage installation. Examples are electricity meters and measurements on primary over current protection devices and ripple control units.

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1.Safety Information

Safety Terms and Symbols

Safety Terms

Terms in this Manual. The following terms may appear in this manual:

Warning: Warning indicates the conditions or practices that could result in personal injury or death.

Caution: Caution indicates the conditions or practices that could result in damage to this product or other property.

Terms on the Product. The following terms may appear on this product: Danger: It indicates an injury or hazard may immediately happen. Warning: It indicates an injury or hazard may be accessible potentially.

Caution: It indicates a potential damage to the instrument or other property might occur.

Safety Symbols

Symbols on the Product. The following symbol may appear on the product:

	Direct current (DC)		Fuse
			Caution, risk of danger (refer to this
	Alternating current (AC)		manual for specific Warning or
			Caution information)
	Both direct and alternating		Category II overvoltage protection
	current
	Ground terminal		Category III overvoltage protection
	Conforms to European Union		Category IV overvoltage protection
	directives
	Equipment protected throughout
	by double insulation or
	reinforced insulation

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2.General Characteristics

2. General Characteristics

Features and benefits:

Data transferring via Bluetooth, interacting with mobile device to read measurements, analyze via special chart mode, remote control, voice-out feature; voice warning supported, which enhances measurement safety (B35(T) only);

3 56 digit reading, achieving higher measurement accuracy than 3 21 or 3 34 digit counterparts;

Larger display, easier data-reading; analog bar graph is displayed synchronously;

Multi-connection (more than one device) supported via mobile APP;

Temperature measuring function;

Backlit-powered screen, more suitable for dark measurement environment;

Smart power-off function, extending battery life;

Thin-tipped test lead (optional) to measure the pins of small package device;

True RMS value available (only in B35T and D35T).

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