GW Instek SPS Series User manual

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i
SAFETY TERMS AND SYMBOLS
These terms may appear in this manual or on the product:
WARNING. Warning statements identify condition or practices that
could result in injury or loss of life.
CAUTION. Caution statements identify conditions or practice that
could result in damage to this product or other property.
The following symbols may appear in this manual or on the product:
DANGER
High Voltage
DANGER
Hot Surface
ATTENTION
refer to Manual Protective Conductor
Terminal
Equipotentiality
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FOR UNITED KINGDOM O
NLY
NOTE
This lead/appliance must only
be wired by competent persons
WARNING
THIS APPLIANCE MUST BE
EARTHED
IMPORTANT
The wires in this lead are
coloured in accordance with
the following code:
Green/
Yellow: Earth
Blue : Neutral
Brown: Live (Phase)
As the colours of the wires in main leads may not correspond with the colours marking
identified in your plug/appliance, proceed as follows:
The wire which is coloured Green & Yellow must be connected to the Earth terminal marked
with the letterE or by the earth symbol or coloured Green or Green & Yellow.
The wire which is coloured Blue must be connected to the terminal which is marked with the
Letter N or coloured Blue or Black.
The wire which is coloured Brown must be connected to the terminal marked with the letter L
or P or coloured Brown or Red.
If in doubt, consult the instructions provided with the equipment or contact the supplier.
This cable/appliance should be protected by a suitably rated and approved HBC mains fuse;
refer to the rating information on the equipment and/or user instructions for details. As a guide,
cable of 0.75mm ²should be protected by a 3A or 5A fuse. Larger conductors would normally
require 13A types, depending on the connection method used.
Any moulded mains connector that requires removal/replacement must be destroyed by removal
of any fuse & fuse carrier and disposed of immediately, as a plug with bared wires is hazardous
if a engaged in live socket. Any re-wiring must be carried out in accordance with the information
detailed on this label.
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iii
EC Declaration of Conformity
We
GOOD WILL INSTRUMENT CO.,LTD.
(1) NO. 95 -11, Pao Chung Rd., Hsin-Tien City, Taipei Hsien, Taiwan
(2) Plot 522, Lorong Perusahaan Baru 3, Prai Industrial Estate, 13600 Prai, Penang, Malaysia
declare, that the below mentioned product
SPS-1820, SPS-3610, SPS-606
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
(89/336/EEC,92/31/EEC,93/68/EEC) and Low Voltage Equipment Directive(73/23/EEC).
For the evaluation regarding the Electromagnetic Compatibility and Low Voltage Equipment Directive,
the following standards were applied:
EN 61326-1: Electrical equipment for measurement, control and laboratory use —
EMC requirements (1997+A1: 1998)
Conducted Emission EN 55022 Class A Electrostatic Discharge EN 61000-4-2 (1995)
Radiated Emission (1994)+A1(1995)+A2(1997) Radiated Immunity EN 61000-4-3 (1996)
Current Harmonic EN61000-3-2 Class A Electrical Fast Transients EN 61000-4-4 (1995)
(1995)/A12(1996)/A13(1997)/A1(1998)/A2(1998)/prA14(2000) Surge Immunity EN 61000-4-5 (1995)
Voltage Fluctuation EN61000-3-3 (1995)+A1(1998) Conducted Susceptibility EN 61000-4-6 (1996)
——————— ————— ———————
Voltage Dip/Interruption EN 61000-4-11 (1994)
Low Voltage Equipment Directive 73/23/EEC & amended by 9368/EEC
Low Voltage Directive EN 61010-1: 1990+A1: 1993+A2: 1995
EN 60950: 1992+A1+A2+A3+A4+A11
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iv
CONTENTS
S
ECTION PAGE
1.
INTRODUCTION…………………………………………………………………………….……………………… 1
2.
SPECIFICATIONS…………………………………………………………………………………………………… 2
2-1 General…………………………………………………………………………………….……………………. 2
2-2 Constant Voltage Operation…………………………………………………………………………………… 3
2-3 Constant Current Operation…………………………………………………………………………………... 3
2-4 Indicator Meter…………………………………………………………………………………………………. 3
2-5 Insulation………………………………………………………………………………………………………... 3
3.
PRECAUTIONS BEFORE OPERATION………………………………………………………………………….. 4
3-1 Unpacking the Switching Power Supply……………………………………………………………………… 4
3-2 Checking the line voltage………………………………………………………………………………………. 4
3-3 Environment……………………………………………………………………………………………………. 5
3-4 Equipment installation and operation………………………………………………………………………… 5
4.
THEORY OF OPERATION………………………………………………………………………………………… 6
5.
PANEL CONTROLS AND INDICATORS………………………………………………………………………… 9
5-1 Front Panel……………………………………………………………………………………………………… 9
5-2 Real Panel………………………………………………………………………………….……………………. 9
6.
OPERATION INSTRUCTIONS……………………………………………………………………………………. 12
6-1 Precaution………………………………………………………………………………….……………………. 12
6-2 Setting Current Limit…………………………………………………………………………………………... 15
6-3 Constant Voltage/Constant Current Characteristic…………………………………………………………. 15
6-4 Operation Mode………………………………………………………………………………………………… 16
7.
MAINTANCE………………………………………………………………………………………………………… 17
7-1 Fuse Replacement………………………………………………………………………………………………. 17
7-2 Line voltage Conversion………………………………………………………………………………………... 17
7-3 Adjustment……………………………………………………………………………………………………… 18
7-4 Cleaning…………………………………………………………………………………………………………. 20
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1
1. INTRODUCTION
The series of switching power supplies for measuring instrument have ruled out the inconvenience of big volume and
heavyweight of a traditional power supply possess.
The output voltage and current is controlled by two variable resistors with coarse and fine regulation for more handy and
precise adjustment.
Features:
lWith more extensive range of input voltage at 97V~133V (for 115V) and 195V~265V (for 230V).
lWith high frequency operation can reduce the size of power transformer.
lWith small size, light weight and high density power.
lEntire efficiency rate higher up to 70%.
lAuto control the voltage and current mode.
lZero adjustment for the output of voltage and current.
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2.SPECIFICATION
2
-1. General
Main supply : 115V/230V±15% 50/60Hz(Switch selectable).
Rating, dimension and weight : See Table 2-1.
Table 2-1MAX. RATING INPUT RATING FUSE STYLE & RATING WEIGHT
Model Voltage
Current Watts VA 115V 230V kg
SPS-1820 18V 20A 500 900 T 10A 250V T 6.3A 250V 3.3
SPS-3610 36V 10A 500 900 T 10A 250V T 6.3A 250V 3.3
SPS-606 60V 6A 500 900 T10A 250V T 6.3A 250V 3.3
Dimensions：128(W) ×145(H) ×285(D) mm.
WARNING: Voltage over 60V DC is a lethal shock hazard to the user. Be careful when
connecting power supplies in series to achieve voltage higher than 60V DC totally or 60V DC
between any connection and earth ground.
Operation Environment : Indoor use,
Altitude up to 2000m,
Installation Category II,
Pollution degree 2.
Operation Temperature &Humidity : 0℃to 40℃, <80%.
Storage Temperature & Humidity : -10℃to 70℃, <70%.
Accessories : TestLead (current < 4A)…………………………………………… × 1
Operation Manual ..………………………………………………………… × 1
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2
-2.Constant Voltage Operation
(1) Output Voltage ranges from 0 to rating voltage with continuous adjustment.
(2) Voltage regulation
line regulation≦5mV.
load regulation≦5mV.
(3) Recovery time≦500μs(50% Load change, minimum load 0.5A).
(4) Ripple & Noise≦5mVrms, 100mVp-p (tested by 20MHz oscilloscope.)
(5) Temperature coefficient≦100ppm/℃.
2-3.Constant Current Operation
(1) Output current ranges from 0 to rating current with continuous adjustment.
(2) Current regulation
line regulation≦3mA.
load regulation≦3mA.
(3) Ripple & Noise≦3mArms (SPS-606).
≦5mArms (SPS-3610).
≦10mArms (SPS-1820).
2-4.Indicator Meter
1)Voltage:
Display : 3 1/2 Digits 0.39” Green LED display.
Accuracy : ±(0.5% of rdg + 2 digits).
2)Current:
Display : 3 1/2 Digits 0.39” Red LED display.
Accuracy : ±(0.5% of rdg + 2 digits).
2-5.Over Voltage Protection
(1) Over Voltage Protection ranges from 5% rating to rating +5.5%.
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(2) OVP Accuracy ±(Vset 1%+0.6V)
2-6.Insulation
Between Chassis and Output Terminal
: ≧20MΩ(DC500V).
Between Chassis and AC Cord : ≧30MΩ(DC500V).
3. PRECAUTIONS BEFORE OPERATION
3.1 Unpacking the Switching Power Supply
The instrument has been fully inspected and tested before shipping from the factory. Upon receiving the instrument, please
unpack and inspect it to check if there is any damages caused during transportation. If any sign of damage is found, notify the
bearer and/or the dealer immediately.
3.2 Checking the Line Voltage
The instrument can be applied any kind of line voltage shown in the table below. Before connecting the power plug to an AC
line outlet, make sure the voltage selector of the rear panel is set to the correct position corresponding to the line voltage. It
might be damaged the instrument if connected to the wrong AC line voltage.
WARNING: To avoid electrical shock the power cord protective grounding conductor must be
connected to ground.
When line voltages are changed, replace the required fuses shown below.
Line voltage Range Fuse Line voltage Range Fuse
115V 97-133V T 10A 250V 230V 195-265V T 6.3A 250V
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