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Variable Transformer 

MA 4804 

Instruction manual

 

Version 3.0., Code no. 20 750 280 

 
 

 

 

 

Summary of Contents for MA 4804

Page 1: ...Variable Transformer MA 4804 Instruction manual Version 3 0 Code no 20 750 280...

Page 2: ...metrel si Mark on your equipment certifies that this equipment meets the requirements of the EC European Community regulations concerning safety and electromagnetic compatibility 2011 METREL No part o...

Page 3: ...ings and notes 2 2 6 Standards applied 3 7 Instrument description 3 1 7 Front panel 3 2 8 Back panel 3 3 8 Instrument set 4 9 Instrument operation 4 1 9 Working with MA 4804 4 2 9 Application of MA 48...

Page 4: ...nsulating from mains supply In general the MA 4804 offers the following Floating secondary circuit Robust construction Adjustable output AC voltage from 0 V to 245 V Permanent load current is 3 1 A Po...

Page 5: ...804 is used in a manner not specified in this Instruction manual the protection provided by the equipment might be impaired The MA 4804 is intended for indoor use only Do not use the instrument and ac...

Page 6: ...neral requirements and tests EN 61558 2 1 Safety of power transformers power supplies reactors and similar products Part 2 1 Particular requirements and tests for separating transformers and power sup...

Page 7: ...Handel Intended for moving the MA 4804 by hand 2 V meter Indicates output voltage 3 Output socket Prepared for connection of floating load 4 Dial Knob for manual regulation of output voltage 5 I O swi...

Page 8: ...Instrument description 8 3 2 Back panel Figure 3 2 Back panel Legend 1 Fuse F1 T 4 A 250 V Breaking capacity 150 A 2 Cord entry For power supply entry 3 3 Instrument set Instrument variable transforme...

Page 9: ...sary 4 2 Application of MA 4804 General application procedure for MA 4804 is as follows Before connection to mains supply keep I O switch in O OFF position switch off automatic fuse and rotate dial kn...

Page 10: ...with other rated AC power supply voltage Notes PE shall be connected as shown if observed equipment requires TN TT supply voltage condition The PE of observed equipment might be connected to the PE of...

Page 11: ...pe only otherwise the instrument may be damaged and or operator s safety impaired Position of fuses can be seen in Figure 3 4 in chapter 3 3 Back panel 5 2 Cleaning No special maintenance is required...

Page 12: ...ristics see graph below Figure 6 1 Loading characteristic of MA 4804 Input overvoltage category 300 V CAT II Protection class I Transformer type separating Pollution degree 2 Protection degree IP30 Di...

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