KRI9310 Handheld DC Resistance Tester

Blood9310Handheld 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.

1.3 According to standards

KRI9310 Handheld DC Resistance TesterThe relevant standards based on are shown in the table below:

GB1094.1-GB1094.6-96Degrees of Protection Provided by Enclosures

Cri9310

2.1 Handheld DC resistance tester

1. 2、 Product Information

2. competitive advantageThe instrument has a high output current and is lightweight, easy to carry.Instrument provided6-speed output current selection, availableoutput

3. 10A current.Built in large capacity lithium battery,

4. Easy to operate on site and can work continuouslyMore than 8 hours.5Wide measurement range（00KΩ），Applicable to Transformers, mutual inductors, reactorsGeneratormotorwaitemotionalTest sample,It can also be used to measure switches, copper bars, and connectionstouchdeviceRelay contactsMetal wires, cable accessories

5. Waiting for the measurement of the test sample.

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

7. The menu is simple and friendly

8. The display data is clear and easy to read, and can be displayed clearly under sunlight.

9. This machine has an audio discharge alarm, clear discharge indication, and reduces misoperation.This machine has the characteristics of high precision, shock resistance, anti-interference, high stability, and easy portability.A protective circuit with *,Test line accidentally disconnected or power supply interrupted, built-inof Discharge circuitAnd againstPotential protection

10. Circuit makes itHas the ability to withstand tensile arcs.

Graphic interface, intuitive and concise

Support switching between Chinese and English.

2.3 2.2 Power supply mode

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

2.4 Appearance diagram

g

(including battery, excluding test line)

3、 Precautions

1. Before measuring the no-load tap changer of the transformer, it must be reset. After the discharge is completed, the alarm sound should stop before switching the tap changer.

When measuring the resistance on the high voltage side of a transformer with on load voltage regulation, start measuring from the 1 or 17 resistance range.

Before disconnecting, be sure to wait until the discharge is complete and the alarm stops before proceeding with the disconnection.4. When selecting the current, refer to the range in the technical specifications column and do not use it beyond or below the range. When the current exceeds the preset value, even if the test is forcibly continued, the stability of the results is poor. When the range is insufficient, the current is too small, resulting in unstable data for large capacity transformers. When these two states occur, confirm the range and select the appropriate range for testing.

5. The test data is unstable or has significant errors,In this situation, first check the test line for loose connections or loose connections. If it still cannot be resolved, check if the test sample is corroded.

During the testing process, the message 'Charging...' was consistently displayed

If this situation occurs, first rule out the magnetic circuit problem of the transformer. If the current has not changed for a long time and remains near zero, check whether there is an open circuit in the circuit.If the battery level is low during the testing process, a charger can be connected for emergency testing.★★★★★★

If the above problems cannot be solved on your own, please contact us promptly

One user manual

Certificate of conformity, warranty card