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Summary of Contents for EZ Digital GP-4303D
- Page 1 99 Washington Street Melrose, MA 02176 Fax 781-665-0780 TestEquipmentDepot.com DC POWER SUPPLY GP-4303D 3.00 30.0 CURRENT FINE VOLTAGE POWER DC POWER SUPPLY GP-4303A CURRENT FINE VOLTAGE POWER...
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Page 2: Warranty
INSTRUCTIONS Thank you for purchasing EZ DIGITAL products. The instruments produced by EZ DIGITAL are high products technpl ogy products made under strict quality control. We guarantee their exceptional precision and utmost reliability. For proper use of this product, please read this manual carefully. EZ Digital Co., Ltd. - Page 3 1. INTRODUCTION GP-4303A/D, 4185A/D series are regulated DC POWER SULLPY units with voltmeter and amperemeter : GP-4303A/D can supply the DC power of 0 to 30V/3A GP-4185A/D can supply 0 to 18V/5A. (A means Analog meter, D means Digital meter) They are provided with continuously variable coarse adjustment and the output voltages and with continuously variable current adjustment in a range of 10 to 100%.
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Page 4: Installation & Handling Precautions
Replace the fuse in the holder with the correct fuse from table3-1 & plug it in. Table 3-1. Line voltage Selection & Fuse Ratings Fuse Ratings (250V) Line Voltage Select Switch Mark GP-4303D/A , GP-4185D/A AC 90 ~ 110 115V T3.15A AC 108~ 132... - Page 5 2. Don't use this instrument immediately after bring it in from the cold. Allow time for it to warm to room temperature. Similary don't move it from a warm place to a very cold place,as condensation might impair its operation. 3. Do not expose the instrument to wet or dusty enviroments.
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Page 6: Specifications
4. SPECIFICATIONS Model GP-4303D GP-4303A GP-4185D GP-4185A Output polarity Positive & Negative Output current 0 ~3A 0 ~5A Ripple Voltage Less than 2mVp-p Less than 0.01% +2mV for power source voltage Line Regulation change of ±10% Load Regulation Less than 0.01% +3mV for load variation of 0 to 100% Voltmeter Accuracy 2.5% F S... - Page 7 5.DECRIPTION OF PANEL FUNCTION 5-1. Front Panel Description DC POWER SUPPLY GP-4303D ③ 3.00 30.0 ② ② ③ ④ C . C C . V ⑤ ④ C . C C . C C . V D C POWE R SUPPLY GP-4303A ⑤...
- Page 8 FINE adjustment knob (4) at middle. The minimum current that can be set is as follows. GP-4303D/A : Approx. 200mA ~ 3A GP-4185D/A : Approx. 350mA ~ 5A After setting a limiting current,remove the short circuit wi re.
- Page 9 6-2 SERIES OPERATION (1) By connecting a couple of the units in series a higher voltage than a single unit is available. In such a case,no terminal should be appli ed with a voltage more than the rating voltage against the ground potential between a terminal and panel chassis. The rating voltage against the ground is ±100V.
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Page 10: Notes On Environmental Condition
6-3 PARALLEL OPERATION (1) When a current capacity larger than a single unit is required, a couple of the units may be used in a parallel connection. In a parallel operation,a unit becomes the main unit and other becomes the sub-unit. Setting of the voltage and current should be made of the main unit. -
Page 11: Current Limiting Circuit
8. CURRENT LIMITING CIRCUIT When the output terminals are short circuited by mistake,the current limiting circuit is activated to limit the flow of the current in excess of the rati ng output current,so that the control elements and the amperemeters connected in series operation an be protected from the sudden damage.
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