background image

data is unlocked, the tester returns to testing mode, and the symbol “

HOLD

” disappears. The tester 

can store maximum 3000 groups of data. 

 

7. Data Viewing/Deletion 

Press “

ڼ

” to view data and display the stored data of Group No. 0001. Press “

ۆ

” and “

ڼ

” to move 

the cursor, press “

MEM

” to confirm. The tester is designed with fast viewing mode (+1, -1, +10, -

10), press “

MEM

” once to view data by increment/decrement. Move the cursor to “+10, -10” and 

hold down “

MEM

” 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 “MEM”. 

8. Data Uploading 

Connect the tester with computer via USB cable, turn on the clamp sensor, then operate the monitor 
software. If the software displays open serial port and successful connection, the stored data can 
be read, uploaded, and saved. 
The monitor software can indicate maximum, minimum and average values, and have multiple 
functions including dynamic display, real-time monitoring, alarming threshold setting, alarming 
indication, data viewing/saving/printing, etc. 
 

VII.

 Battery Replacement 

 

It is forbidden to test without battery cover set in place, otherwise it may pose 

risk. 

Pay attention to the battery polarity, otherwise it may cause product damage. 

Do not apply new battery with used one. 

 
1. The symbol “

” flashes if the battery voltage of primary clamp sensor is lower than 4.8V. If the 

battery voltage of the tester is lower than 4.8V, the tester shows the low battery symbol to indicate 
insufficient battery power, please replace the battery. 
 
2. Power off the product, loosen the screws at the battery cover, open the battery cover, replace 
with new batteries (pay special attention to the battery polarity), rejoin the battery cover, then tighten 
the screws. 
 
3. Press “

” to check if the product can be powered on normally. If the product cannot be powered 

on, please repeat Step 2. 
 
 
 
 
 
 

 

 

 
 
 

10

Summary of Contents for UT225B

Page 1: ...UT225B UT225B P N 110401111909X UT225B High Voltage Transformer Turns Ratio Tester...

Page 2: ...s 4 1 Power On Off the Primary High Voltage Clamp Sensor 2 2 Power On Off the Tester 2 3 Testing of High Voltage Current and Overhead Current 2 4 Secondary Low Voltage Current Testing 2 5 Testing of T...

Page 3: ...to the instruction It is recommended to perform dielectric test on the product once a year at least AC 60kV rms between both ends 5 pieces of connected insulation sticks II Introduction UT225B High Vo...

Page 4: ...ty Basic conditions Work conditions Remark Ambient temperature 23 C 5 C 15 C 50 C Ambient humidity 40 60 70 Distortion rate of sinusoidal wave 1 3 Signal frequency 50Hz 5Hz 45Hz 65Hz External electric...

Page 5: ...r than 4 8V the symbol appears to indicate replacing battery Transmission distance of primary clamp sensor 100M wireless transmission Data transfer USB Connecting wire of secondary clamp sensor 2M Dis...

Page 6: ...with the indicator light lit up and it starts automatic testing The testing results current pulse and others of the high voltage end are sent to the tester via wireless transmission The indicator lig...

Page 7: ...ise it may present a risk of electric shock which can cause personal injury or death The insulation stick must be connected when performing testing by clamping high voltage line otherwise it may prese...

Page 8: ...or primary current If the tester displays OL for primary current it indicates the measured primary current is over the upper range specified by the high voltage clamp sensor To remove the high voltage...

Page 9: ...e clamp sensor to test circuit over 600V or 5A otherwise it may present a risk of electric shock which can cause personal injury or product damage 1 Connect the low voltage clamp sensor with the teste...

Page 10: ...150 5 150 150 100 0 3...

Page 11: ...by the nameplate at the current transformer If the actual test error is over the set error the symbol OL appears on bottom right of the LCD On site wire connection 6 Data Hold Storage When is pressed...

Page 12: ...or software can indicate maximum minimum and average values and have multiple functions including dynamic display real time monitoring alarming threshold setting alarming indication data viewing savin...

Page 13: ...rying bag 1 pc AAA alkaline dry battery 8 pc User manual 1 pc The content of this user manual cannot be used as a reason for using the product for special purposes The company is not responsible for o...

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