Global Specialties PB-503A User Manual Download Page 4

4

 

 globalspecialties.com

Global Specialties

Hands, shoes, floor, and work bench must be dry.  Avoid making  

 

measurements with dampness, or other environmental conditions that might 

affect safety.

General Safety Information

To avoid personal injury and/or product damage, review and comply with the following safety 

precautions. These precautions apply to both operating and maintenance personnel and must 

be followed during all phases of operation, service, and repair o this meter. Before applying 

power be sure to:

• 

Read and understand the safety and operational information in this manual.

• 

Apply all the listed safety precautions.

• 

Verify that the voltage selector on the back of the unit is set to the correct line voltage. 

Operating the instrument at an incorrect line voltage will void the warranty.

• 

Make all connections before applying power.

• 

Do not operate the instrument in ways not specified by this manual or by Global 

Specialties.

Failure to comply with these precautions or with warnings elsewhere in this manual violates 

the safety standards of design, manufacture, and intended use of the instrument. Global 

Specialties assumes no liability for a customer’s failure to comply with these requirements.

Dry Conditions

Use a soft cotton cloth lightly moistened with a mild solution of detergent and 

water. Do not allow any portion to be submerged at any time. Dry thoroughly 

before attempting to make measurements. Do not use solvents or expose to 

solvent fumes as they may cause deterioration or damage.

Cleaning

Do not Operate

• 

In the presence of noxious, corrosive, flammable fumes, gases, vapors, chemicals, or 

finely-divided particulates.

• 

In environments where there is a danger of any liquid being spilled on the meter.

• 

In air temperatures exceeding the specified operating temperatures.

• 

In atmospheric pressures outside the specified altitude limits or where the        

surrounding gas is not air.

Only for use in pollution degree 2 environments where non-conductive pollution occurs except 

occasionally when a temporary conductivity caused by condensation is expected.

CAUTION

WARNING

Summary of Contents for PB-503A

Page 1: ...User Manual PB 503A Desktop Circuit Design Trainer...

Page 2: ...Components and Features 11 12 Specifications 13 14 Checking out the PB 503A 15 16 Breadboarding Techniques 17 Warranty and Service Information 18 2022 Global Specialties All rights reserved Unauthori...

Page 3: ...witch on the trainer Power off This is the AC mains connect disconnect switch on the trainer This symbol is used to denote an AC signal This symbol is used to denote the chassis ground This symbol is...

Page 4: ...to comply with these precautions or with warnings elsewhere in this manual violates the safety standards of design manufacture and intended use of the instrument Global Specialties assumes no liabili...

Page 5: ...able may result in injury or death Unless otherwise stated a ground connection on the instrument s front is for a reference of potential only and is not to be used as a safety ground This instrument i...

Page 6: ...ith the power cord removed dangerous voltages may exist when the covers are removed To avoid injuries always disconnect the power cord from the instrument remove all other connections for example test...

Page 7: ...ve RoHS 2 ANNEX III Exemption 6 c The PB 503A Circuit Design Trainer is a versatile time saving tool for circuit designers engineering technicians students and hobbyists A large breadboard area and a...

Page 8: ...luable hands on breadboarding techniques and build a solid foundation in circuit experimentation construction and analysis Experienced designers will find the PB 503A an invaluable instrument providin...

Page 9: ...eries Circuits Logic Gates Boolean Algebra Parallel Circuits Combinational Logic Circuits Combinational Circuits Flip Flops Current Control Digital Arithmetic Closed open shorts Counters Registers Swi...

Page 10: ...omes standard with a 250 V 1 5 A type T fuse for the 115 VAC setting In order to use with 230 VAC please slide the switch in the back to 230 VAC and replace the fuse with a 250 V 0 75 A type T fuse AC...

Page 11: ...sition or 70 of the operating voltage or higher when in the CMOS position The green LEDs will light when the voltages at the inputs are 0 8 V or less when in the TTL position or 30 of the operating vo...

Page 12: ...may be connected to other pieces of equipment via two BNC connectors This allows the use of shielded cable to minimize noise and interference Switches Two single pole double throw SPDT switches are pr...

Page 13: ...t circuit protected Output Impedance 600 except TTL Output waveforms Sine Square Triangle TTL Sine Wave Distortion 3 1 kHz typical TTL Pulse Rise fall time 25 ns drives 100 TTL Loads Square Wave Rise...

Page 14: ...s F2 1 k and 10 k uncommitted Speaker 8 0 25 W uncommitted Breadboards Removable breadboard Plate PB 3 with 2520 tie points with 200 additional bus strip tie points internally connected to power suppl...

Page 15: ...are taped together in small batches Removing the components from the tape does not always remove the adhesive from the leads of the components Placing a formerly taped component into a socket connect...

Page 16: ...relationship between the switch positions and the logic indicator display should remain the same regardless of the setting of the 1 3 15 volts V supply By using an ohmmeter you can check the potentiom...

Page 17: ...s Sometimes the only way to correct high frequency circuit problems is to shorten all circuit connections Be especially careful when inserting integrated circuits into the breadboard sockets Unless th...

Page 18: ...ot be covered by this warranty Global Specialties reserves the right to discontinue models change specifications price or design of this device at any time without notice and without incurring any obl...

Page 19: ...19 globalspecialties com Global Specialties...

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