CN2512B DC low resistance measuring Instrument

CN251X series intelligent DC low resistance tester is an Instrument for testing various DC resistance of transformers, motors, switches, Relays, connectors, etc.

the instrument has the advantages of wide measurement Range, high accuracy and fast speed. the instrument adopts high-precision Constant current flow through the measured specimen and five-terminal Measurement, which effectively deducts the lead error, which is suitable for Users to make high-precision measurements; at the same time, the instrument has Added a sorting function, and the user can directly set the upper and lower Limits of the resistance or the percentage error for sorting, which greatly Improves the test speed of similar products.

Main Performance and technical indicators:

1. Display: display the resistance value with five digits, and only display four Digits when the first digit is greater than 4;

the Percentage is displayed as a four-digit number plus a sign bit, and the range Is ±0.01%~±9999%.

2. Measuring range: 2511: 10uΩ~20.000KΩ;

2512:10uΩ2.0000MΩ;

Display: Overrange Display: UUUUU.

3. Test speed: slow (6 times/second), fast (10 times/second).

4. Gear selection: automatic or manual.

5. Power supply: 50/60Hz AC220V±5%.

6. Operating environment: Temperature: 0°C~40°C, RH≤80%.

7. Remote control interface: optional.

8. Communication interface: optional.

9. Appearance: 270mm*110mm*300mm (width * height * depth).

10. Weight: about 4 kg.

11. Remote control sorting output: LOW, PASS, and HIGH, all of which are effective at low level.

12. the resistance measurement range, measurement accuracy, displayresolution and Test current are shown in the following table:

Resistance Measurement range		20 MΩ	200 MΩ	2 Ω	20Ω	200Ω	2 KΩ	20KΩ	200KΩ	2 MΩ
Accuracy	2511	0.2%±3	0.1%±3
	2512	0.2%±3	0.1%±3	0.05%±3					0.1%±3
	2512B			0.05%±3
Test the current	2511	100mA	100 but	100mA	10mA	1mA	100uA	100uA
	2512	1 Amp							10uA	1uA
	2512B
Reading Resolution	2511	10uΩ	10uΩ	100uΩ	1 MΩ	10mΩ	100mΩ	1H
	2512	1uΩ							10Ω	100Ω
	2512B
Open-circuit Voltage	2511	<1.0 V				<5.0 V
	2512					<5.0 V
	2512B					<5.0 V

how to use and precautions

after 15 minutes of booting and warming, connect the test fixture, clear the short Circuit of the test fixture and start the measurement. If the test fixture Should be clamped on a short-circuit copper sheet for zeroing when measuring Small resistance, and the test fixture must be directly short-circuited, and the test fixture must be on the same side, the short-circuit piece is best to Use 10*5*3 copper sheet or other materials with good conductivity, and the two Fixture heads should be as close as possible to the short-circuit sheet. during Normal measurement, do not turn the fixture arbitrarily.

When Measuring a single DUT, wait for the instrument to automatically skip gears, Select the appropriate gear and read the data. Measure the same kind of Analyte, test the first product, lock the range after the data is stable, and the instrument will be fixed in the range for measurement in the next Measurement, which can improve the measurement speed and service life of the Instrument.