High Precision Contact Resistance Teste

Product Introduction

MOEORW-WHL20CL High-Precision Adjustable Loop Resistance Tester Manufactured using digital circuit technology and switching circuit technology, this specialized device measures contact resistance and loop resistance in switchgear equipment. The MOEORW-HL20CL employs 20A DC current as recommended by national standard GB763. It directly measures and displays loop resistance or contact resistance at 2A/20A current levels.

Product Parameter (specification)

1. Measurement Range	0–2000.000 μΩ Resolution;0.01 μΩ
2. Measurement Current	2A–20A adjustable
3. Measurement Accuracy	Class 0.5
4. Display	LCD English display, six-and-a-half digit display
5. Operating Mode	Continuous
6. Power Supply	AC 220V
7. Dimensions	(L×W×H mm) 380×280×230
8. Ambient Temperature	-10°C to +40°C Relative Humidity <80%

Product feature and application

◊ Test Current: This eliminates the previous restriction of testing just at 20A by measuring resistance at any current level.
◊ Display: Current and resistance readings are shown on a 6.5-digit true color LCD display.
◊ High Current: Overcomes the short-duration constraints of pulse-type power sources by utilizing state-of-the-art power supply technology for sustained, stable output.
◊ Robust Anti-Interference Capability: Resists all environmental disruptions without compromising measurement accuracy or instrument performance.
◊ High Intelligence: Data storage, automatic printing, and a date clock are all part of this ARM-controlled system. Automatic output control allows for customization of current output and timing.
◊ User-Friendly Operation: Clear measurement data and an intuitive UI. Data is printed in Chinese via an integrated front-loading printer.
◊ Extended Life of Service: In situations including high altitude or direct sunlight, wide-temperature Chinese character LCDs alleviate display failure problems. High-precision resistors are used in every component.
publish information in an English format;

◊ Extended service life: This solution addresses the problem of LCD failure in high-altitude and direct sunlight conditions by using a wide-temperature English character LCD display. High-precision resistors are used in every component, thereby removing the impact of ambient temperature on measurement outcomes. Vibration resistance is improved by using aircraft connectors; ◊ Portable design: lightweight design and small dimensions.

Prodection details

MOEORW-WHL20CL High-Precision Adjustable Loop Resistance Tester is suitable for high-precision measurement of contact resistance (loop resistance) in high-voltage switches, as well as other applications requiring high-current, micro-resistance measurements.

Company Qualifications

FAQ

1)What measurement method does the MOEORW-WHL20CL High-Precision Adjustable Loop Resistance Tester employ, and what are its advantages?

Answer: This tester utilizes a standard four-wire measurement method. Its advantages include significantly enhancing measurement accuracy for low resistances, effectively mitigating interference from test lead resistance and contact resistance on results, and ensuring precise and reliable data when measuring micro-resistances.

2)What precautions should be taken before removing test leads after measuring inductive loads with the MOEORW-WHL20CL High-Precision Adjustable Loop Resistance Tester?

Answer: After measuring an inductive load, do not immediately disconnect the test leads. Wait until the instrument's discharge indicator completes its cycle before proceeding. The instrument's output terminals incorporate a discharge circuit. When the output is deactivated, the inductance discharges energy through this circuit. Directly disconnecting the leads could pose a hazard to personnel and equipment due to this inductive discharge.

3)What are the requirements for stacking and orientation during transportation of the MOEORW-WHL20CL High-Precision Adjustable Loop Resistance Tester?

Answer: During transportation, stacking is not permitted if the manufacturer's original wooden crate is not used. When using the original crate, stacking is limited to a maximum of two layers. Regardless of crate usage, the instrument must be transported with the panel facing upward to prevent damage during transit.

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