KRI9310 Handheld DC Resistance Tester

KRI9310 Handheld DC Resistance Tester

I. Overview

1.1 Conventional use

DC resistance measurement is a necessary measurement item for semi-finished and finished products in transformer manufacturing, factory testing, installation, handover testing, and preventive testing by the power department. It can effectively detect manufacturing defects such as material selection, welding, loose connection parts, missing strands, and broken wires of transformer coils, as well as hidden dangers after operation.

In order to meet the needs of measuring the DC resistance of transformers, our company has developed a tool based system utilizing our technological advantagesKRI9310 Handheld DC Resistance TesterThis instrument is an innovative product with a compact size, handheld operation, battery power supply, and easy portability. It has the characteristics of small size, light weight, and high output current. The whole machine is controlled by a microcontroller, which automatically completes self checking, data processing, display and other functions. It also has functions such as automatic discharge and discharge sound alarm indication. The instrument has high measurement accuracy, easy operation, and can achieve rapid measurement of transformer DC resistance.

1.2 Safety precautions

1. This instrument can be used both indoors and outdoors, but it should be protected from rain, corrosive gases, dust, etchigh temperatureUse in other places.

2. Before using this instrument, be sure to read this manual carefully.

3. The operator of the instrument should have general knowledge of using electrical equipment or instruments.

4. This instrument is a high-precision instrument and should avoid severe vibration.

5. The maintenance, upkeep, and debugging of this instrument should be carried out by professionals.

6. After the test is completed, be sure to wait for the discharge indicator to be completed before turning off the power and removing the test line.

7. When measuring an unloaded voltage regulating transformer, be sure to wait for the discharge prompt to end before switching the transformer gear.

8. During the testing process, it is prohibited to disassemble and move the test clip and power supply line.

2、 Product Information

2.1 competitive advantage

1. The instrument has a high output current and is lightweight, easy to carry.

2. Instrument provided6-speed output current selection, availableoutput10A current.

3. Built in large capacity lithium battery,Easy to operate on site and can work continuouslyMore than 8 hours.

4. Wide measurement range（050KΩ），Applicable toTransformers, mutual inductors, reactorsGenerator motorwaitemotionalTest sample,It can also be used to measure switches, copper bars, and connectionstouchdeviceRelay contactsMetal wires, cable accessoriesWaiting for the measurement of the test sample.

5. This instrument comes with a perpetual calendar99 sets of data storage, manual temperature conversion and other functions, no data loss when turned off.

6. The menu is simple and friendlyThe display data is clear and easy to read, and can be displayed clearly under sunlight.

7. This machine has an audio discharge alarm, clear discharge indication, and reduces misoperation.

8. This machine has the characteristics of high precision, shock resistance, anti-interference, high stability, and easy portability.

9. A protective circuit with *,Test line accidentally disconnected or power supply interrupted, built-inofDischarge circuitAnd against Potential protectionCircuit makes itHas the ability to withstand tensile arcs.

10. Graphic interface, intuitive and conciseSupport switching between Chinese and English.

2.2 Power supply mode

This instrument is powered by a large capacity built-in lithium battery;

2.3 Appearance illustration

To facilitate access to the instrument or expose the side interface during operation, the handheld tester can be tilted as shown in the following figure.

2.4 technical indicators

KRI9310 Handheld DC Resistance Tester

IIITest steps

samplewiring

Connect the tested product to the terminal of the machine through a dedicated testing wire, ensuring a secure connection and preventing false connections.

The instrument wiring is shown in the following figure: Connect the red test wire plug rod toI+Up, Insertion rod connectedV+Up, clamp the test clamp onto one end of the test sample and connect the black test wire plug rod to itI-Up, connect the plug-in rodV-Clamp the test clamp onto the other end of the sample.

1. On this interface, moveUse the "left" or "right" arrow keys to select "exit" and "export data". At this pointinsertUSB drive, "USB drive scanning in progress" appears…”The instrument will export and store all data.

2. In the main interface, select System Settings and pressPress the "Confirm" button to enter the system settings interface.

3. On this interface, perform“Time Settings”And“languagesettings”. throughpressLeft and right arrow keysMove the cursor and pressUp and down arrow keys to modify setting parameters.

4. In the main interface, select the factory settings and pressPress the "Confirm" button to enter the factory settings interface.

5. Factory mode requires password operation and is not open to users.