background image

 

Press “

” to view data, and to display the stored data of “0001” group automatically. Press 

” and “

” to move the cursor, press “

” to confirm and return. The tester is designed 

with  fast  viewing  function  (“+1,  -1,  +10,  -10”),  press  “

”  once  to  view  data  by 

increment/decrement, move the cursor to “+10, -10” and hold down “

” to view data 

by increment/decrement at 100. To exit data viewing mode and return to testing mode, 
please move the cursor to “Return” and then press “

”. 

 

6. Battery Replacement 

If the battery voltage of the tester is lower than 4.8V, the low battery symbol “

” 

is displayed to indicate replacing battery. Loosen the two screws at the battery 
cover,  open  the  battery  cover,  replace  with  new  battery  (Note  the  battery 
specification and polarity), rejoin the battery cover, and then tighten the screws. 
 

  
 
 
 
 
 
 
 

 
  

VIII.

 Precautions 

1. Do not place or keep the tester in environments with high temperature, high 
humidity, dews and direct sunlight for a long time. 
2. Remove the battery when not used for a long time. 

3. Leave the clamp jaws away from dirt and dust, make sure the clamp jaws open and 
close in place. 

4. Avoid impact on the clamp jaws, perform regular maintenance on the tester. 
Wipe  the  tester  through  soft  cloth  (i.e.  cloth  for  glasses)  dipped  with  anti-rust 
dehumidifying lubricant (i.e. WD-40), do not use corrosive agent or coarse material! 
5. Avoid interference of electromagnetic field during testing. 

IX.

 Packing List 

Tester 

1 pc 

Primary current transformer (CT1) 

1 pc 

Secondary current transformer (CT2) 

1 pc 

Tool bag 

1 pc 

Strap 

1 pc 

Battery (AAA 1.5V alkaline dry batter) 

4 pcs 

Battery (6F22  9V) 

1 pc 

User manual 

1 pcs 

 

Содержание UT225A

Страница 1: ...P N 110401111865X UT225A UT225A UT225A Transformer Turns Ratio Receiver Flex Clamp Sensor Low Voltage Transformer Turns Ratio Tester...

Страница 2: ...ard Condition 4 VI Technical Parameters 5 VII Application 6 1 Power On Off 6 2 Setting of Transformer Turns Ratio and Ratio Difference 6 3 Testing of Transformer Turns Ratio 6 4 Data Lock Storage Unlo...

Страница 3: ...ironments with concentrated cables making it a safe accurate and portable measurement meter for technicians The application of the tester can create significant economic and social benefits for power...

Страница 4: ...primary and secondary loop current of current transformer by using CT1 and CT2 conduct signal processing amplification filtering and A D conversion and then input to the central processing unit of the...

Страница 5: ...Hz 5Hz 45Hz 65Hz External electric and magnetic fields Shall be avoided Position of measured conductor Place the measured conductor at the center of the clamp jaws VI Technical Parameters Function Ide...

Страница 6: ...groups Sampling rate 3 times per second Battery voltage If the battery voltage is lower than 4 8V the symbol is displayed to indicate replacing battery Overload indication The symbol OL A is displayed...

Страница 7: ...s continuously to indicate auto power off The tester automatically powers off after the LCD flashes continuously for about 30 seconds If the LCD flashes continuously press so as for the tester to cont...

Страница 8: ...sformer ratio and ratio difference converted at secondary current of 5A For example set the transformer ratio at 150 5A test in phase positive circuit the primary current is 150 5A secondary current i...

Страница 9: ...in phase Er Failure to identify normally This may be caused by low current amplitude co frequency signal interference or others 4 Data Lock Storage Unlock When is pressed during testing the displayed...

Страница 10: ...specification and polarity rejoin the battery cover and then tighten the screws VIII Precautions 1 Do not place or keep the tester in environments with high temperature high humidity dews and direct...

Страница 11: ...sed as a reason for using the product for special purposes The company is not responsible for other losses caused by use The company reserves the right to modify the contents of the user manual If the...

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