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GW Instek GW-PSS-2005 Manual Download Page 11

    PSS-3203/2005 PROGRAMMABLE POWER SUPPLY

USER MANUAL

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  16  

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[Step 2.1]

Now input the voltage value (Min) measured by DMM with the knob

and press [ENTER]. During the voltage value input, use the [F/C]

button to switch over the input of 1V step or 10mV step.

Note: The DMM selected for the measurement have the resolution of

three digits of the decimal point at least (1mV). Also the input value

is to take two digits of decimal point of effective value (10mV) and

run off the rest.

[Step 2.3]

Adjust VR311 and adjust the voltage value measured by DMM

according to the voltage displayed in the window, then press

[ENTER].

Note: The DMM selected for the measurement must have the

resolution of three digits of the decimal point at least (1mV).

During the adjustment, the maximum error of the measured

value is 

±

0.005V.

[Step 3] Current Calibration Steps

Switch the Calibration selection window to current calibration item

with the knob and press [ENTER] getting into current calibration

steps.

[Step 3.1]

Now input the current value (Max.) measured by the DMM with the

knob and press [ENTER]. During the current value input, use the

    PSS-3203/2005 PROGRAMMABLE POWER SUPPLY

USER MANUAL

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  17  

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[F/C] button to switch over the input of 100mA range (100mA/step)

or 1mA range (1mA/step).

Note: The DMM selected for the measurement must have the

resolution of four digits of the decimal point at least (0.1mA).

Also the input value is to take three digits of decimal point of

effective value (1mA) and run off the rest.

[Step 3.2]

Now input the current value (Min.) measured by the DMM with the

knob and press [ENTER]. During the current value input, use the

[F/C] button to switch over the input of 100mA range (100mA/step)

or 1mA range (1mA/step).

Note:The DMM selected for the measurement must have the

resolution of four digits of the decimal point at least (0.1mA).

Also the input value is to take three digits of decimal point of

effective value (1mA) and run off the rest.

[Step 4]

Switch the Calibration selection window to O.V.P. calibration item

with the knob and press [ENTER] getting into O.V.P calibration

steps.

[Step 4.1]

At present, the window will indicate the progress of OVP calibration.

When the calibration is completed, it will jump out of the window.

[Step 5]

Summary of Contents for GW-PSS-2005

Page 1: ... 12 13 13 13 6 MAINTENANCE 6 1 Fuse Replacement 6 2 Line Voltage Conversion 6 3 Adjustment and Calibration 6 4 Cleaning 14 14 14 15 18 7 THE SYSTEM DIAGRAM AND DESCRIPTION 7 1 Block Diagram 7 2 The Operation of the whole circuit 19 19 20 PSS 3203 2005 PROGRAMMABLE POWER SUPPLY USER MANUAL ii SAFETY TERMS AND SYMBOLS These terms may appear in this manual or on the product WARNING Warning statements...

Page 2: ...oloured 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 PSS 3203 2005 PROGRAMMABLE POWER SUPPLY USER MANUAL iv This cable appliance should be protected by a suitably rated and approved HBC mains fuse refer to the rating inf...

Page 3: ...00 4 4 1995 Surge Immunity EN 61000 4 5 1995 Conducted Susceptibility EN 61000 4 6 1996 Voltage Dips Interrupts EN 61000 4 11 1994 Safety Low Voltage Directive 73 23 EEC amended by 93 68 EEC IEC EN 61010 1 2001 PSS 3203 2005 PROGRAMMABLE POWER SUPPLY USER MANUAL 1 1 PRODUCT INTRODUCTION 1 1 Description PSS series Programmable Power Supply is controlled by Micro Processor Unit MPU that can easily c...

Page 4: ... 0 21V 1 Voltage 3mV 5mV rating current 3 0A Load Effect Current 3mA 5mA rating current 3 0A Voltage 3mV Source Effect Current 3mA Voltage 10mV Current 1mA 2mA rating current 3 0A Resolution OVP 10mV Voltage 0 05 20mV Current 0 1 5mA 10mA rating current 3 0A Program Accuracy 25 5 OVP 0 05 20mV Voltage Ripple 1mVrms 3mVp p Noise 2mVrms 30mVp p Ripple Noise 20Hz 20MHz Current 3mArms 5mArms rating cu...

Page 5: ... from the factory Upon receiving the instrument please unpack and inspect it to check if there is any damage 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 product can be applied by any kind of line voltages shown in the table below Before connecting the power plug to an AC line outlet make sure the volt...

Page 6: ...C 32 to 104 F To operate the instrument exceeding this specific temperature range may cause damage to the circuits of instrument Do not use the instrument in a place where strong magnetic or electric field exists as it may disturb the measurement PSS 3203 2005 PROGRAMMABLE POWER SUPPLY USER MANUAL 7 4 PANEL INTRODUCTION Figure 4 1 Front Panel ...

Page 7: ... for value input or setting confirmation 8 F C The knob for switching over coarse and fine adjustment 9 MENU The category of function setting Output OVP OCP Contrast Buzzer Interface PS After switching to the picture of function setting category if there is no further setting action within 4 to 5 seconds the system will return to previous setting picture or output display picture 10 LOCAL Clear RE...

Page 8: ...GRAMMABLE POWER SUPPLY USER MANUAL 11 Example If want to set the current as 1 234A first using the F C knob to switch the cursor to 1mA step and adjust the value to 34 then switch the cursor to 100mA step and adjust the value to 12 to complete the modification Note 1 When the load current through output terminal exceeds the setting value the instrument is operated in the C C mode if not exceeds th...

Page 9: ...window will be appeared then using the wheel knob to modify the value and press ENTER to complete the setting Note The system will detect the interface used at present automatically and switch the detected interface over the setting interface of GPIB or RS 232 Example 1 If want to set the GPIB address value to 15 Set to interface window by pressing MENU and adjust the address value to 15 with the ...

Page 10: ...ltage to another is done by change AC selects switch The rear panel identifies the line voltage to which the unit was factory set To convert to a different line voltage perform the following procedure WARNING PSS 3203 2005 PROGRAMMABLE POWER SUPPLY USER MANUAL 15 1 Make sure the power cord is unplugged 2 Change the AC selects switch to the desired line voltage position 3 A change in line voltage m...

Page 11: ...ue Max measured by the DMM with the knob and press ENTER During the current value input use the PSS 3203 2005 PROGRAMMABLE POWER SUPPLY USER MANUAL 17 F C button to switch over the input of 100mA range 100mA step or 1mA range 1mA step Note The DMM selected for the measurement must have the resolution of four digits of the decimal point at least 0 1mA Also the input value is to take three digits of...

Page 12: ...t may leak into the cabinet and cause damage Do not use chemicals containing benzine benzene toluene xylene acetone or similar solvents Do not use abrasive cleaners on any portion of the instrument PSS 3203 2005 PROGRAMMABLE POWER SUPPLY USER MANUAL 19 7 THE SYSTEM DIAGRAM AND DESCRIPTION 7 1 Block Diagram The graph above is the system diagram of PSS SERIES Which consists of Micro Processor Unit M...

Page 13: ...f materials can use the Vr to make adequate adjustment PSS 3203 2005 PROGRAMMABLE POWER SUPPLY USER MANUAL 21 The operation in C C Mode is similar to that in C V Mode The MPU will send 2100 counts 2 1A output current to DAC output through analog switch and Sample Hold circuit the voltage now is at around 3 276V 1 56mVx2100 3 276V Then compare this voltage with the real output voltage which is retr...

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