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CHAPTER 1. INTRODUCTION 

 

1.1 Product Marking Symbols 

 

Product will be marked with this symbol when it is necessary to refer to the 
operation and service manual in order to prevent injury or equipment damage. 

 
 
Product will be marked with this symbol when hazardous voltages may be present. 

 
 

1.2 Safety Precaution 

 

 

This  product  and  its  related  documentation  must  be  reviewed  with  full 
acknowledgement on safety markings and instructions before operation. 
 

 

Before  applying power, verify that the  instrument  is  set  to the  correct  line  voltage  and 
installed the correct fuse. 
 

 

When using an oscilloscope to measure DUT waveform, please refer description below to 
avoid DUT, instrument and oscilloscope damages. When the output of AC source has N-G 
or  L-G  shorted,  customer  must  use  differential  isolation  type  of  oscilloscope  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 Maintenance 

 
User Service 
 
To prevent electric shock do not remove the instrument cover. There are no user serviceable 
parts inside. Routine maintenance or cleaning of internal parts is not necessary.    Any 
external cleaning should be done with a clean dry or slightly damp cloth.    Avoid the use of 
cleaning agents or chemicals to prevent any foreign liquid from entering the cabinet through 
ventilation holes or damaging controls and switches, also some chemicals may damage plastic 
parts or lettering. Any replacement cables and high voltage components should be acquired 
directly from EEC or its distributor. 
 
Service Interval 
The instrument must be returned at least once a year to an EEC authorized service center for 
calibration and inspection of safety related components. EEC will not be held liable for injuries 

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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