background image

 

  4   

 

3. Operation Introduction   

3.1 Front Panel Operation 

1)

 

The applied Voltage/Current Unit for this series instruments is Volt (V) and Amp (A) . 

2)

 

The factory setting is in panel operation mode that enable user to operate the instruments directly from panel 

control knob. 

3)

 

When  the  remote  controller is  on line,  the 

[Lock]

  button backlight  turns  on and  the  operation  can  only be 

proceed  through  it.  But the 

[On/Off]

  button is still available for  operation.  All  other  button  operations  are 

closed unless press 

[Lock] 

button again to unlock the front panel. The 

[Lock]

 button backlight turns off. 

4)

 

The output of power supplies is always at OFF status after power on. 

3.2 How to Input 

3.2.1 Input via Numeric buttons 

Use  numeric  buttons  from  0  to  9  and  decimal  point  to  input  targeted  values,  and  then  press 

[Enter]

  button  to 

confirm  input.  If  the  input  value  is  wrong,  press 

[Clear]

  button  to  clear  the  present  values,  then  input  correct 

values. 

3.2.2 Input via Step Button   

In  practices,  a  set  of  voltage  or  current  value  with  same  interval  is  commonly  used.  It  is  complicated  and  time 

consuming  to  input this  kind  of  value  by  repeatedly  pressing  the  numeric  buttons  and 

[Enter]

  button.  It is also 

complex by using the rotary knob because voltage or current value may be multi-digit. It is very convenient to use 

the step input method. Every press on the corresponding button makes the voltage or current increase or decrease 

by a step value. The input value is validated automatically without pressing 

[Enter]

 button 

 

For example, to generate a series of voltage with interval 1.1V, press buttons sequentially as below: 

Press 

[Shift]

 

[4]

 to enter function setting mode. 

Press 

[Menu]

 again until 

“Utility V Step” is shown on the LCD, 

 

Press 

[1]

 

[.]

 

[1] [Enter] 

to complete step voltage value setup, 

Press 

[V-set]

 until 

“Voltage” is shown on the LCD, 

 

Press 

[

]

 to increase the voltage by 1.1V or press 

[

]

 to decrease the voltage by 1.1V.   

Repeat this operation, a series of voltage with equal interval can be generated. The same procedure can be 

used for the current operation.   

3.2.3 Input via Rotary Knob 

In  some  applications,  it  requires  to  adjust  the  output  signal  continuously.  It  is  convenient  to  use  rotary  knob  to 

make  adjustment.  Press  buttons 

[

]

  or 

[

]

  to  move  the  cursor  left  or  right.  Rotate  the  knob  to  the  right  to 

continuously increase the cursor-located digit by 1 and make the carry to a higher unit position. Rotate the knob to 

the  left  to  continuously  decrease  the  cursor-located  digit  by  1  and  make  the  carry  to  a  lower  unit  position.  The 

modified value is validated immediately without pressing the 

[Enter] 

button. 

Содержание eTM-K Series

Страница 1: ...Programmable Switching DC Power Supply Operation Manual V1 0 eTOMMENS INSTRUMENT ...

Страница 2: ...ut Voltage Setting 5 3 4 Output Current Setting 5 3 5 Over Voltage Protection Setting 5 3 6 Over Current Protection Setting 6 3 7 Output Delay Time Setting 6 3 8 Function Setup 7 3 9 Auto Running Operation 10 3 10 Output On Off 11 3 11 Panel Lock 11 3 12 Rotary Knob 11 3 13 Protection Function 11 3 14 Operation Mode 12 4 Remote Control 14 4 1 Interface Setting 14 4 2 SCPI Commands 14 5 Maintenance...

Страница 3: ...anty items except the one being provided by this summary and the warranty statement The warranty items include but not being subjected to the hinted guarantee items related to tradable characteristics and any particular purpose We will not take any responsibility in cases regarding to indirect particular and ensuing damage such as modifications to the circuit and functions by the users repairing o...

Страница 4: ...oid electrical shock Fuse Fuse type please refer to section 5 2 for details Make sure the correct type of fuse is installed before power up Replace the AC fuse with the same type and rating as the original fuse Disconnect the power cord before fuse replacement Make sure the cause of fuse blowout is fixed before fuse replacement Cleaning Disconnect the power cord before cleaning Use a soft cloth da...

Страница 5: ... be connected to the Earth terminal marked with the letter E or by the earth symbol or coloured Green or Green Yellow The wire which is coloured Blue must be connected to the terminal 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 provid...

Страница 6: ...led by keyboard The adjustment of voltage current is made by software calibration without manual error that will increase the preciseness of the instrument 1 2 Features High accuracy high resolution Over load over voltage over current over temperature and reverse polarity protections CV and CC operations auto CV and CC switch 122 32 backlit LCD display High speed rotary dial and keypad input Built...

Страница 7: ...ront Panel 1 Power switch 2 Function button and Numeric button 3 Output terminals 4 Remote sensing terminals 5 Rotary knob 6 LCD display 7 LED indicator Fig 2 1 2 Rear Panel 1 RS 232 interface 2 Cooling fan 3 Power cord fuse socket 4 Ground terminal of chassis ...

Страница 8: ...nput digit 9 Input decimal point Clear Exit ProtClear clear protection Menu Select menu I set Set current V set Set voltage ListRun Turns on off the auto run programs OCP Set Over Current Protection value OVP Set Over Voltage Protection value Shift Select the second function Lock 1 Lock the front panel 2 Switch to local operation On Off Turn on off output Move flash digit to the left right Move fl...

Страница 9: ...ex by using the rotary knob because voltage or current value may be multi digit It is very convenient to use the step input method Every press on the corresponding button makes the voltage or current increase or decrease by a step value The input value is validated automatically without pressing Enter button For example to generate a series of voltage with interval 1 1V press buttons sequentially ...

Страница 10: ...00A Press I set 3 2 0 0 Enter 3 5 Over Voltage Protection Setting The Over Voltage Protection OVP function protects the power supply and DUT from damage caused by voltage over the setup voltage Before operation set the OVP function ON and set the OVP value When the output voltage exceeds this value the output will be shut down and OP indicator will light on With OVP function ON the output voltage ...

Страница 11: ...own and OP indicator will light on With OCP function ON the output current is restricted within the OCP range 3 6 1 OCP Value Setting Press OCP button until OCP Set is shown on the LCD Setting method 1 Press numeric buttons 0 9 Decimal Point Enter to complete OCP setting Setting method 2 Press buttons or to move the cursor left or right Rotate the rotary knob left or right to increase or decrease ...

Страница 12: ...is shown on the LCD Set the maximum value of Step to be the maximum value of the voltage range Setting method 1 Press numeric buttons 0 9 Decimal Point Enter to set step voltage Setting method 2 Press buttons or to move the cursor left or right Rotate the rotary knob left or right to increase or decrease the digit on cursor For example Set the step voltage to 10 000V Press 1 0 0 0 0 Enter 3 8 2 Cu...

Страница 13: ...otary knob to turn on or off the beeper 3 8 5 Hotkey Setting Press key Menu until Utility HotKey is shown on the LCD Press or rotary knob to turn on or off the hotkey function After the hotkey function is set ON the numeric button 0 to 9 means the setting data of index number 0 to 9 in memory bank So the setting data of index number 0 to 9 can be recalled by pressing the corresponding number 3 8 6...

Страница 14: ...s of 5 Press 5 Enter Note When a setting is recalled the output automatically turns off 3 8 9 Software Version Press Menu button until Utility Version is shown on the LCD The instrument software version is displayed at the same time 3 8 10 Remote Sensing Setting When the load is consuming large current there will be voltage drop on the connecting cable between terminals of power supply and the loa...

Страница 15: ...uttons or to move the cursor left or right Rotate the rotary knob left or right to increase or decrease the digit on cursor For example Set the start memory address to 0 Press 0 Enter 3 9 2 End Memory Address Setting Press Menu button until Auto End is shown on the LCD Setting method 1 Press numeric buttons 0 9 Enter to set end memory address Setting method 2 Press buttons or to move the cursor le...

Страница 16: ...eft time of running settings on the present memory address LeftCycle represents left executed cycles No means the memory address Press On Off mode to start output 3 10 Output On Off The Output On Off button on front panel is used to turn on or off the output 3 11 Panel Lock The Lock button on front panel is used to lock the front panel from misinput Press Lock button then the button backlight ligh...

Страница 17: ... indicator is on it needs to increase its current limit value to ensure that the output operation is under constant voltage mode 3 14 2 Constant Current Operation 1 Connect load to output terminal For the safety turn off the output before connecting the load to output terminals of and 2 Set the voltage limit value Press V set until Voltage is shown on the LCD the panel operation is set to voltage ...

Страница 18: ...13 green The instrument operates in Constant Voltage mode The instrument automatically switches between Constant Current mode and Constant Voltage mode according to load condition ...

Страница 19: ...g items Check whether the connection cable is broken off or not Check whether the connection cable is crossover cable Check whether the pin connection among interface cable power cord and PC is correct or not Check whether the interface cable is properly connected or not Check whether the communication parameters setup is compliant to COM port setting or not Check whether the end character is line...

Страница 20: ...ver and overheating of the plug and cord stopper Check the terminal screws and binding posts for loosening 5 2 Fuse Replacement Step 1 Take off the power cord and remove the fuse socket using a minus driver 2 Replace the fuse in the holder Fuse rating 220V For models 30V 20A and 60V 10A T4AL 250V For models 15V 60A 30V 30A and 60V 15A T8AL 250V 110V For models 30V 20A and 60V 10A T8AL 250V ...

Страница 21: ...e co efficient 300ppm Constant Current Operation CC Line regulation 0 2 3mA Load regulation 0 2 5mA Ripple Noise 10mArms Display Voltmeter 5 digits display Ammeter 5 digits display Setting resolution 1mV 1mA Reading resolution 1mV 1mA Setting accuracy Voltage 0 03 of reading 10mV 25 5 Current 0 3 of reading 10mA 25 5 Reading accuracy Voltage 0 02 of reading 5mV 25 5 Current 0 05 of reading 10mA 25...

Страница 22: ...17 Weight 5 5kg 4 5kg ...

Отзывы: