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A good user manual
The rules should oblige the seller to give the purchaser an operating instrucion of SMC Networks GP-503, along with an item. The lack of an instruction or false information given to customer shall constitute grounds to apply for a complaint because of nonconformity of goods with the contract. In accordance with the law, a customer can receive an instruction in non-paper form; lately graphic and electronic forms of the manuals, as well as instructional videos have been majorly used. A necessary precondition for this is the unmistakable, legible character of an instruction.
What is an instruction?
The term originates from the Latin word „instructio”, which means organizing. Therefore, in an instruction of SMC Networks GP-503 one could find a process description. An instruction's purpose is to teach, to ease the start-up and an item's use or performance of certain activities. An instruction is a compilation of information about an item/a service, it is a clue.
Unfortunately, only a few customers devote their time to read an instruction of SMC Networks GP-503. A good user manual introduces us to a number of additional functionalities of the purchased item, and also helps us to avoid the formation of most of the defects.
What should a perfect user manual contain?
First and foremost, an user manual of SMC Networks GP-503 should contain:
- informations concerning technical data of SMC Networks GP-503
- name of the manufacturer and a year of construction of the SMC Networks GP-503 item
- rules of operation, control and maintenance of the SMC Networks GP-503 item
- safety signs and mark certificates which confirm compatibility with appropriate standards
Why don't we read the manuals?
Usually it results from the lack of time and certainty about functionalities of purchased items. Unfortunately, networking and start-up of SMC Networks GP-503 alone are not enough. An instruction contains a number of clues concerning respective functionalities, safety rules, maintenance methods (what means should be used), eventual defects of SMC Networks GP-503, and methods of problem resolution. Eventually, when one still can't find the answer to his problems, he will be directed to the SMC Networks service. Lately animated manuals and instructional videos are quite popular among customers. These kinds of user manuals are effective; they assure that a customer will familiarize himself with the whole material, and won't skip complicated, technical information of SMC Networks GP-503.
Why one should read the manuals?
It is mostly in the manuals where we will find the details concerning construction and possibility of the SMC Networks GP-503 item, and its use of respective accessory, as well as information concerning all the functions and facilities.
After a successful purchase of an item one should find a moment and get to know with every part of an instruction. Currently the manuals are carefully prearranged and translated, so they could be fully understood by its users. The manuals will serve as an informational aid.
Table of contents for the manual
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Page 1
DC P ower Supply[...]
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Page 2
SAFETY SUMMARY SAFETY PRECAUTIONS Please take a moment to review these safety precautions. They are provided for your protection and prevent damage to the power supply. This safety information applied to all operator and service pers onnel. If the equipment is used in a manner not specified by the manufa cturer, the protection provided by the equip[...]
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Page 3
INSTRUCTIONS Thank you for purchasing EZ DIGITAL products. The instruments produced by EZ DIGITAL COMPANY are high products technplogy products made under strict quality control. We guarantee their exceptional precision and utmost reliability. For proper use of this product, please read this manual carefull y. EZ Digital Co., Ltd. 1. To maintain th[...]
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Page 4
1. INTRODUCTION 2. FEATURES 3. PRECAUTIONS 3-1. Line voltage selection 3-2. Installation & handling precautions 3-3. Cleaning 4. SPECIFICATION 5. PANEL DECRIPTION 5-1. Front Panel Description 5-2. Rear Panel Description 6.OPERATIONS 6-1. Independent Operation 6-2. Seriall Operation 6-3. Parallel Operation 7. NOTES ON ENVIRONMENTAL CONDITION 8. [...]
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Page 5
1. INTRODUCTION GP-305 , 3010 , 503 , 505 series are regulated DC POWER SULLPY u nits with voltmeter and amperemeter : GP-305 can supply the DC power of 0 to 30V/5A GP-503 can supply 0 to 50V/3A. GP-505 can supply 0 to 50V/5A. They are provided with continuously variable coarse adjustment a nd the output voltages, and with continuously variable cur[...]
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Page 6
3. PRECAUTIONS 3-1. Line voltage selection This instrument must be operated with the correct line voltage s elector switch setting and the correct line fuse for the line voltage selected to preve nt damage. The instrument operates from either a 90V to 132V or 198V to 250 V line source. Before line voltage is applied to the instrument , make sure th[...]
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Page 7
4. Do not place liquid-filled containers on top of this instrum ent. A spill could seriously damage the instrument. 5. Do not use this instrument where it is subject to serve virat ion,or strong blows. 6.Do not place heavery objects on the case,or otherwise block th e ventilation hol e 7. Do not use this power supply in strong magnetic fields,such [...]
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Page 8
4. SPECIFICATIONS Less than 0.01% +2mV for power source voltage change of ±10% More than 10㏁ at DC 500V chassis and output terminal More than 50㏁ at DC 500V chassis and AC plug. Overload protection circuit of constant current self restoring type Short circuit Bar Spare Fuse Model Output polarity Output current Ripple Voltage Line Regulation Lo[...]
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Page 9
[6][...]
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Page 10
5.DECRIPTION OF PANEL FUNCTION 5-1. Front Panel Description 1. POWER SWITCH : This switch turns on and off the power. 2. C.V LED : Display LED for static state current & voltage operating. 3. CURRENT VR : The current limiting knob for setting and a djusting the output current in a range of max. 10 ~100% 4. FINE VR : The fine adjustment knob of [...]
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Page 11
5-2. Rear Panel Description 1. DC FAN 2. SERIAL NUMBER 3. AC INLET 4. VENTILATION [8] 2 3 1 4[...]
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Page 12
The specifications are subjected to change without notice.[...]