Product Details

1、 Product Overview

The measurement of JY44B DC bridge is a required item for factory test, installation, handover test and preventive test of electric power department for semi-finished products and finished products in the manufacture of inductive coils such as transformers, transformers, reactors, electromagnetic operating mechanisms, etc. It can effectively find manufacturing defects such as material selection, welding, loose connection parts, missing strands, broken wires, etc. of inductive coils and hidden dangers after operation. In order to meet the needs of quick measurement of JY44B DC bridge with inductive coil, our company has developed JY44B DC bridge tester with its own technical advantages. The instrument adopts a new power supply technology, featuring small volume, light weight, large output current, wide range, digital display, etc. The whole machine is controlled by a single chip microcomputer, which automatically completes self inspection, data processing, display and other functions, and has automatic discharge and discharge indication functions. The instrument has high test accuracy, simple operation and can realize fast measurement of DC resistance.

2、 Safety measures

1. Read this manual carefully before using this instrument;

2. This instrument can be used both inside and outside the house, but should avoid rain, corrosive gas and other places. The instrument shall avoid violent vibration;

3. The maintenance, care and adjustment of the instrument shall be carried out by professionals;

4. After the test, the power supply must be turned off and the test line must be removed after the discharge alarm stops;

5. When measuring the no-load voltage regulating transformer, be sure to switch the gear after the discharge indicating alarm tone stops;

6. During the test, it is forbidden to move the test clamp and turn off the power supply line.

3、 Performance characteristics

1. The output current of the instrument is large and the weight is light;

2. The instrument provides 6 output current options, and the maximum output current is 10A;

3. The resistance temperature of the instrument can be converted according to the set temperature;

4. With perfect protection circuit, the performance is more reliable;

5. Lithium ion battery power supply, convenient for on-site operation;

6. Sound discharge alarm to reduce misoperation;

7. 4.3 inch color LCD, resolution 480 × 272 TFT true color display screen, Chinese operation menu;

8. The instrument adopts machine line integration mode, with built-in special test line, which is easy to carry;

9. The storage capacity of this machine is large, and it can store up to 200 test records;

10. With USB interface, the test data can be transferred to the USB disk;

11. The parameter setting is more perfect. The test winding, tapping position, test phase, test object temperature, converted temperature value, etc. of the transformer can be set.

4、 Technical indicators

1. Output current: 10A, 5A, 1A, 200mA, 40mA, ＜ 5mA;

2. Range:

0.001Ω-0.1Ω （10A）

0.03Ω-1Ω （5A）

0.06Ω-5Ω （1A）

0.1Ω-50Ω （200mA）

0.3Ω-200Ω (40mA)

100Ω-100kΩ (<5mA)

3. Accuracy: 0.2% ± 2 μ Ω；

4. Resolution: 0.1 μ Ω；

5. Working temperature: - 20~40 ℃;