Global Specialties PB-503A User Manual Download Page 5

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Global Specialties

5

 451-032-001_rA

Electrical Power

This instrument is intended to be powered from a CATEGORY II mains 

power environment. The mains power should be 115 VAC or 230 VAC 

(±10%) at 50/60 Hz. Use only the power cord supplied with the instrument 

and ensure it is appropriate for your country of use. Slide the switch on the 

back of the trainer to select the appropriate input making sure the correct 

fuse is installed. This trainer consumes less than 50 W. 

Fuse Replacement

Indoor Use

Ground the Instrument

To minimize shock hazard, the instrument case must be connected to an 

electrical safety ground. This instrument, and the chassis, is grounded 

through the ground conductor of the supplied, three-conductor AC power 

cable per IEC 60320-1. Do not alter or bypass the ground connection. 

Failure to use a properly-grounded approved outlet and the recommended 

three-conductor AC line power cable 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 is intended to be used in an indoor pollution degree 2 environment. The 

operating temperature range is 0 °C to 40 °C and the operating humidity range is up to 

80% relative humidity with no condensation allowed. Measurement results may be outside 

specifications if the instrument is used in non-office-type environments. Such environments 

may include rapid temperature or humidity changes, sunlight, vibration and/or mechanical 

shocks, acoustic noise, electrical noise, strong electric fields, or strong magnetic fields.

Set the power switch to the OFF or O position and disconnect the power 

cord before inspecting or replacing the fuse. Open the black fuse holder 

(located at the back of the trainer below the input power receptacle) with 

a small, flat-head screwdriver. Remove the old fuse, replace it with a new 

one, and reinstall the fuse holder. Use only 5 x 20 mm type T 1.5/250 V or 

0.75A/250 V Fuses. 

CAUTION

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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