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15 

 

 
If the system parameter “OC Fold” is ON and current high limit is set, the output voltage 
will drop down to maintain output current. If the High Limit is OFF, the output will cut off 
until the output current is over the current of protect circuit.   

 
5.    PF / P Select Button 

Press PF/P select key to view Power Factor or Power (Watts) measurement. 

 

6.   

  Button 

This key is to turn ON or OFF the output voltage. When the 

  indicator is lit, the 

voltage is presence at the universal socket. If the indicator is blinking that shows an 
abnormal operation is encountered, thereby the output voltage will be cut off 

immediately. By pressing the 

  key will reset the audible alarm, 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 again it will reactivate all 

keys to function normally. The Lockout feature is to prevent any unauthorized alteration. 

 
8.    Storage Of 3 Memories 

There is a feature to store the voltage, current and power on each memory and there are 
total 3 memories available. In order to store into each particular memory, press the M1, 
M2 or M3 keys for at least one second. To recall each memory, press the M1, M2 or M3 
accordingly to retrieve the setting that being stored.   
 

9.    Power On Condition 

Every time when turning on the AC Power Source, the voltage and current displays will 
indicate model and version respectively for the particular AC Power Source.   
 

 

 

   

 

 

 

 
 

 

 

 

 

Model 

Version 

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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