APPENDIX 
49 
25BDeclaration of Conformity 
 
We 
GOOD WILL INSTRUMENT CO., LTD. 
(1) No.7-1, Jhongsing Rd., Tucheng City, Taipei County, Taiwan 
(2) No. 69, Lu San Road, Suzhou City (Xin Qu), Jiangsu Sheng, China 
declare, that the below mentioned product 
Type of Product: Power Supply 
Model Number: GPD-3303D/GPD-3303S 
are herewith confirmed to comply with the requirements set out in the 
Council Directive on the Approximation of the Law of Member States 
relating to Electromagnetic Compatibility (2004/108/EC, 89/336/EEC, 
92/31/EEC, 93/68/EEC) and Low Voltage Directive (73/23/EEC, 
93/68/EEC). 
For the evaluation regarding the Electromagnetic Compatibility and 
Low Voltage Directive, the following standards were applied: 
◎ EMC 
EN 61326-1: 2006 Electrical equipment for measurement, control and 
laboratory use  –– EMC requirements 
Conducted Emission 
Radiated Emission 
ClassA 
Electrostatic Discharge 
EN 61000-4-2: 1995 + A1:1998 + 
A2:2001 
EN 55011: 1998 + A1:1999 + 
A2:2002 
Radiated Immunity 
EN 61000-4-3: 2002 + A1:2002 
Current Harmonics 
EN 61000-3-2: 2000 + A2:2005 
Electrical Fast Transients 
EN 61000-4-4: 2004 
Voltage Fluctuations 
EN 61000-3-3: 1995 + A1:2001 
Surge Immunity 
EN 61000-4-5: 1995 + A1:2001 
------------------------- Conducted Susceptibility 
EN 61000-4-6: 1996 + A1:2001 
-------------------------  Power Frequency Magnetic Field 
EN 61000-4-8: 1993 + A1:2001 
-------------------------  Voltage Dip/ Interruption 
EN 61000-4-11: 2004 
◎ Safety 
Low Voltage Equipment Directive 73/23/EEC, 93/68/EEC 
Safety Requirements 
IEC/EN 61010-1: 2001 
    GPD-3303 Series User Manual 
50 
INDEX 
 
automatic out off ..................21 
banana plug...........................20 
beep setting 
contents..............................21 
manual ...............................21 
remote control...................42 
caution symbol .......................5 
cleaning the instrument.........7 
COM setting, remote control
............................................36 
command list ........................39 
recalling the list.................43 
common terminal, tracking 
series...................................27 
cooling fan.............................17 
safety instruction ................6 
CV/CC 
CH1/CH2 indicator .........24 
CH3 indicator....................26 
operation theory .........10, 18 
EN61010 
declaration of conformity 49 
measurement category ......6 
pollution degree .................7 
EN61326-1 .............................49 
environment 
operation..............................7 
specification ......................48 
storage..................................8 
error messages, remote 
control..........................38, 44 
front panel 
lock (manual).................... 22 
overview ........................... 14 
fuse 
rating ................................. 46 
replacing ........................... 46 
safety instruction ............... 6 
GPD series 
block diagram................... 12 
dynamic load.................... 10 
lineup................................. 11 
list of features ................... 11 
operation theory............... 12 
technology overview......... 9 
ground symbol....................... 5 
identification information... 43 
load connection.................... 20 
operation mode 
independent...................... 23 
remote control .................. 41 
specifications .................... 47 
tracking parallel ............... 32 
tracking series................... 27 
output current setting 
manual............................... 24 
remote control .................. 40 
output on/off 
FAQ ................................... 45 
manual............................... 21 
remote................................ 42 
output voltage setting 
manual............................... 24 
remote control .................. 40