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22 

 

Low Range Power Calibration   
Press 

  or 

  key from the Frequency display to select “P-LO". Connect a variable resistor 

as  load  and  a  calibrated  true  RMS  Power  Meter  on  one  of  the  output  socket  and  press 

  key  in  order  to  activate  the  CPU  to  read  a  low  range  offset  power  and  send  a 

100VAC  output  voltage. The  accurate  RMS  Power  meter  will  indicate  an actual power  value 
while the Current display on the AC Power Source will indicate a necessary value needed to be 
calibrated.  Adjust  the  load  or  voltage  to  get  the  reading  from  the  RMS  Power  Meter  to  be 
100.0W. By using the power value from the RMS Power Meter, press 

  or 

  key from the 

Current display to scroll the display which indicates the power value, in order to set the power 

according to the RMS Power Meter.    After it is done, press 

  to save the data stored and 

the low range power calibration is completed. 
 

 

 
High Range Power Calibration 
Press 

  or 

  key from the Frequency display to select “P-HI". Connect a variable resistor 

as load and a calibrated true RMS Power Meter on one of the output socket and press 

  key in order to activate the CPU to read a high range offset power and send a 

100VAC output voltage. The accurate RMS Power Meter will indicate an actual power value 
while the Current display on the AC Power Source will indicate a necessary value needed to be 
calibrated. Adjust the load or voltage to get the reading from the power meter to be 

suggestion value(500VA

500W

1KVA

1000W

2KVA

2000W). Using the power value from 

the RMS Power Meter, press 

  or 

  key from the Current display to scroll the display 

which indicates the power value, in order to set the power according to the RMS Power Meter.   

After it is done, press 

  to save the data stored and the high range power calibration is 

completed. 

 

 

 
Each calibration items of the above is non-related to one another. If the calibration has to be 

terminated half way, user can just press 

  key to exit the calibration mode. 

 
After the calibration is completed, turn OFF the AC Power Source. 

Содержание 6900S Series

Страница 1: ...6900S Series 6905S 6910S 6920S 6930S 6950S AC Power Source User Manual E1 01...

Страница 2: ......

Страница 3: ...ill void your warranty Operate under non normal contrived omission or accidental calamity including temblor floods rebellion and fire etc Any non authorized modifications tampering or physical damage...

Страница 4: ...Modification history Date Version Content 2017 5 C1 00 First edition...

Страница 5: ...3 2 2 1 Power Requirements 3 2 2 2 Power Cable 3 2 3 Environmental Conditions 4 CHAPTER 3 SPECIFICATIONS 5 3 1 Specification 5 3 2 Front Panel Description 9 3 3 Rear Panel Description 12 CHAPTER 4 MA...

Страница 6: ......

Страница 7: ...oscope probe or using isolated oscilloscope To prevent accidental injury or death these safety procedures must be strictly observed when handling and using the test instrument 1 3 Service and Maintena...

Страница 8: ...user modifications will void your warranty EEC will not be responsible for any injuries sustained due to unauthorized equipment modifications or use of parts not specified by EEC Instruments returned...

Страница 9: ...uirements This instrument requires a power source of 110 volts AC 10 50 60 Hz single phase or 220 volts AC 10 50 60 Hz single phase Please check the rear panel to be sure the proper switch setting is...

Страница 10: ...l packaging materials that you originally received If you are returning your instrument to us for servicing please repackage the instrument in its original container Please enclose the instrument with...

Страница 11: ...oad Crest Factor 3 Line Regulation 0 1V Load Regulation 0 5 of output 0 5V at Resistive Load SETTING Voltage Range 0 310V 155 310V Auto Range Resolution 0 1V Accuracy 1 of setting 0 1 f s 1 of setting...

Страница 12: ...ack On Off Setting On when output current over setting Hi A value it will fold back output voltage to keep constant output current is setting Hi A value Response time 1 4s Efficiency 78 80 Protection...

Страница 13: ...7 6905S rated output current PF 1 6910S rated output current PF 1 6920S rated output current PF 1...

Страница 14: ...8 6930S rated output current PF 1 6950S rated output current PF 1 6950S rated output current PF 0 8...

Страница 15: ...5 UNIVERSAL AC OUTPUT SOCKET Trip Current 20A 6 P PF SELECT BUTTON Select the display of output wattage or power factor value 7 M1 M2 AND M3 BUTTON Store setting memories Press and hold for a second o...

Страница 16: ...ss to set the output frequency to 60 Hz 16 50 Hz KEY Press to set the output frequency to 50 Hz 17 POWER FACTOR INDICATOR When the LED is ON the display shows the output power factor 18 WATTMETER INDI...

Страница 17: ...ge 25 LO INDICATOR When the LED is lit the output is set to low range 26 INDICATOR When the LED is lit it is at normal operation whereas when the LED is blinking it is at abnormal operation 27 POWER S...

Страница 18: ...12 3 3 Rear Panel Description 6905S rear panel 6910S rear panel 6920S rear panel 1 1 2 2 3 3 4 5 5 6 8 8 1 2 6 7 8...

Страница 19: ...LE Standard IEC 320 connector for connection to a standard NEMA style line power mains cord 5 INPUT POWER SWITCH Line voltage selection is set by the position of the switch In the left position it is...

Страница 20: ...rmal setting and 10Hz step for coarse setting As the 50 Hz or 60 Hz key is pressed the desired frequency will be immediately updated The same method applied like voltage setting to scroll the display...

Страница 21: ...arm an error message is indicated 7 Front Panel Lockout Press the key will lead to the LOCK indicator to be lit in order to disable all keys on the front panel except PF P key Further pressing the key...

Страница 22: ...m voltage setting limit FrEq HI 450 0 Maximum frequency setting limit FrEq LO 40 0 Minimum frequency setting limit OC Fold OFF Output Current fold back disable ON Output Current fold back enable 1 Pow...

Страница 23: ...n becomes 1HZ STEP 5 Frequency Low Limit The Frequency display will indicate FrEq and the Voltage display shows LO Press the or key from the Current display to adjust the low limit frequency within th...

Страница 24: ...s will show the overloaded voltage or current respectively They will occur Over Current Protection that output circuit is short and the system will self protect within 1 second or the output current h...

Страница 25: ...ent displays will show the overloaded voltage or current respectively If the Amplifier is fault or abnormal or GBIT on the Amplifier is burned the Frequency display will indicate A SH and the alarm wi...

Страница 26: ...will indicate a necessary value needed to be calibrated Using the voltage value from the RMS Voltmeter press or key from the Current display to scroll the display which indicate the current voltage va...

Страница 27: ...ey to save the data stored and the low range current calibration is completed High Range Current Calibration Press or key from the Frequency display to select A HI Connect a variable resistor as load...

Страница 28: ...or key from the Frequency display to select P HI Connect a variable resistor as load and a calibrated true RMS Power Meter on one of the output socket and press key in order to activate the CPU to re...

Страница 29: ...ce with the input circuit and all related parts are required to be checked and calibrated at least once every year This is to protect user in terms of safety and to ensure a high accuracy of this AC P...

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