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Low Resistance ohmmeters – DLRO2X

Adiradh offers Low Resistance ohmmeters – DLRO2X for precise and reliable measurement of low-resistance electrical connections. Moreover, this instrument provides accurate readings for micro-ohm and milli-ohm values, therefore it is ideal for maintenance and commissioning tasks. In addition, the DLRO2X supports stable DC test current, thus enabling consistent voltage drop detection. Also, it features a digital display, consequently reducing reading errors. Furthermore, the device is portable, therefore field engineers can carry it easily. However, operation remains simple, thus minimal training is required. As a result, technicians can quickly test joints, busbars, and bonding connections. In addition, the DLRO2X includes firmware that can be updated, therefore performance improvements and bug fixes can be applied. Moreover, the instrument supports battery operation, thus allowing extended field use. Finally, firmware installation instructions are included in the manual, therefore users can upgrade safely and maintain accurate measurements.

 

Overview

The Low Resistance ohmmeters – DLRO2X is a digital instrument designed for accurate measurement of low-resistance electrical circuits. Moreover, it uses a four-terminal Kelvin measurement method, therefore test lead and contact resistance are minimized. In addition, the instrument delivers up to 2 A DC test current, thus supporting precise readings even on high-conductivity connections. Also, the DLRO2X supports automatic zeroing, consequently reducing offset errors. Furthermore, the compact and rugged design ensures field durability, therefore testing can be performed on site. However, the user interface remains simple, thus measurements are easy to record. As a result, this device is suitable for substations, industrial plants, and electrical maintenance teams. In addition, the instrument can store test results digitally, therefore data analysis and record-keeping are simplified. Moreover, firmware updates can be applied following the provided instructions, thus ensuring that the device stays current with software improvements and remains reliable for long-term use.

About the Product

The DLRO2X is a low-resistance ohmmeter capable of measuring micro-ohm and milli-ohm values with high accuracy. Moreover, it operates using the Kelvin four-wire method, therefore separating current injection from voltage sensing to reduce measurement errors. In addition, the instrument provides up to 2 A DC test current, thus ensuring stable voltage drop detection across conductors and contacts. Also, the device features internal signal processing and digital filtering, consequently enhancing measurement repeatability. Furthermore, automatic zero compensation reduces offsets, therefore improving accuracy. However, the rugged enclosure ensures reliability in field conditions, thus protecting the electronics from environmental factors. As a result, the DLRO2X is suitable for testing circuit breaker contacts, busbar joints, and grounding connections. In addition, the firmware can be updated easily, therefore new features or improvements can be installed by following the included installation instructions. Moreover, digital memory allows traceable measurements for reporting and compliance purposes.


Datasheet for Low Resistance ohmmeters – DLRO2X

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User Guide for Low Resistance ohmmeters – DLRO2X

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Technology & Benefits

The DLRO2X employs advanced digital technology to deliver stable and repeatable low-resistance measurements. Moreover, the four-terminal Kelvin method minimizes errors from lead and contact resistance, therefore enhancing accuracy. In addition, the controlled DC current output reduces noise influence, thus providing reliable readings in industrial environments. Also, automatic zeroing compensates for thermal EMF, consequently reducing measurement offsets. Furthermore, the firmware can be updated following installation instructions, therefore device performance can be improved over time. However, battery operation supports extended field sessions, thus testing can continue without external power. As a result, maintenance teams gain consistent and trustworthy measurements. In addition, the clear digital display reduces interpretation errors, therefore improving data reliability. Moreover, the compact design allows access to tight spaces, thus enabling versatile field use. Finally, the combination of technology and portable construction ensures efficient and accurate maintenance testing across electrical installations.

Key Features

  • Up to 2 A DC test current for low-resistance measurement

  • Four-terminal Kelvin measurement method

  • Digital display with micro-ohm resolution

  • Automatic zero compensation for EMF reduction

  • Internal memory for test result storage

  • Rugged portable design for field use

  • Firmware update capability with installation instructions

  • Battery-powered operation for site testing

Applications

  • Circuit breaker contact resistance testing

  • Busbar and joint resistance measurement

  • Earthing and bonding verification

  • Substation and industrial maintenance

  • Portable electrical testing in field conditions

Advantages

  • Accurate micro-ohm and milli-ohm measurements

  • Reduced errors using Kelvin four-wire method

  • Fast and reliable testing in the field

  • Easy firmware updates for improved performance

  • Compact and rugged design for portability

 

DLRO2X FirmwareLatest Version

2.0408

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Installation instructions:

  1. Plug the USB flash drive in to the USB slot at the top of the instrument. Turn OFF. Wait 3 seconds and turn back ON.
  2. The boot loader screen will be displayed when the instrument starts up.
  3. Press [OK] to upgrade firmware or [TEST] to cancel.
  4. The unit will progress through various stages.
  5. When complete, remove the USB flash drive.
  6. Restart the DLRO2 (turn off and on).
  7. If a measurement firmware update is to be performed, then the measurement firmware update screen will display. At the end of the firmware update, the instrument will automatically restart.

 

 


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Adiradh Energy offers Low Resistance ohmmeters – DLRO2X in India; Hyderabad; Visakhapatnam; Vijayawada; Chennai; Puducherry; Trichy; Coimbatore; Hosur; Bangalore; Hubli; Mysore; Cochin; Kolkata; Pune; Goa; Mumbai; Thane; Kanpur; Jaipur; Nagpur; Delhi; Noida; Gurugam; Bhopal; Vadodara; Ahmedabad; Chandigarh; Chandigarh; Tata Nagar; Raipur; Rudrapur; Durgapur; Kharagpur; Raigarh; Bhilai; Angul; Haldia; Jabalpur; Indore; Jamshedpur; Rajahmundry; Bokaro Steel City; Salem; Kochi; Rourkela; Ahmedabad ;Jamnagar; Bharuch; Sri City; Nashik; Haridwar; Mathura; Aurangabad; Bhubaneswar and other cities