KDB-II transformer ratio tester is an innovative product that overcomes the shortcomings of the traditional ratio bridge test. The screen uses a large screen and high resolution LCD screen, and the power supply is lithium, which is convenient for field use.

Functional characteristics
Lithium battery power supply or 220V AC power supply adaptive, one charge, can continuously carry out more than 100 transformer ratio group test, the test process is simple and convenient.
It has blind test function, that is, variable ratio and group test when the high and low pressure connection mode is not known.
On the basis of conventional transformer, Z-transformer and PT test, CT variable ratio polarity test function is added, and the application field is wider.
Wide measuring range, high precision, variable ratio measuring range up to 10000, and the maximum value of 10000 test accuracy guaranteed 0.3%.
It has perfect protection functions such as reverse connection protection and output short circuit protection.
5.6 inch large industrial high brightness color LCD screen, the display is still clearly visible in strong sunlight.
Equipped with thermal printer for easy data printing.
With local storage and flash disk storage, easy to save data.

Variable ratio test
Measuring range: 0.9 ~ 10000
 
Technical index
Accuracy:
± (reading x 0.1%+2 words) (500 or less)
± (reading x 0.2%+2 words) (greater than 500 less than or equal to 3000)
± (reading x 0.3%+2 words) (> 3000)
 
Resolution:
0.9 ~ 9.9999 (0.0001)
10 ~ 99.999 (0.001)
100 ~ 999.99 (0.01)
1000 ~ 9999.9 (0.1)
10000 and above (1)
 
Working power supply: built-in lithium battery or external charger, charger output AC220±10% power frequency: 50/60Hz
Charging voltage: 8.4V
Charging current: ≤2A
Charging time: about 3 hours
Usage time: more than 8 hours
Weight: 3.8kg(excluding test cable)
Host size: 325mm(L)×225mm(W)×125mm(H)
Operating temperature: -10℃ ~ 50℃
Relative humidity: ≤90%, no condensation