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Digital Low Resistance Micro-Ohmmeters - DLRO100

Digital Low Resistance Micro-Ohmmeters - DLRO100 Specification

Temperature
-10C to +50C (operating)

Features
Data storage, Rapid testing, Rechargeable battery, Safety interlocks

Automation Grade
Semi-Automatic

Equipment Type
Micro-Ohmmeter

Test Range
0.1 to 1000

Accuracy
0.2% of reading 2 digits

Interface Type
RS232, USB

Frequency
50/60 Hz

Operating Voltage
100V-240V AC

Mounting Type
Portable

Response Time
Less than 5 seconds (typical)

Resolution
0.1

Application
Measurement of low resistance values in electrical circuits and equipment

Humidity
0-90% RH, non-condensing

Display Type
Large backlit LCD

Power Supply
100V-240V AC, 50/60Hz

Measuring Range
0.1 to 1000

Usage
Field and laboratory

Capacity
Continuous current up to 100A

Machine Weight
7 kg

Control Mode
Manual

Safety Protection
Cat IV 600V safety rated

Current Output
10A, 100A selectable

Input Protection
Over-voltage and over-current protected

Compliance Standards
IEC61010-1, CE certified

Resistance Measurement Modes
Forward and Reverse polarity

Test Lead Length
5 m supplied as standard

Data Transfer
USB and RS232 cable included

Enclosure Rating
IP54 dust and splash proof

Battery Type
Rechargeable lithium-ion battery

Memory
Stores up to 1000 test results

Dimensions
315 x 285 x 170 mm

Display Backlight
Adjustable for outdoor visibility

Battery Backup Time
Up to 1000 tests per charge

Digital Low Resistance Micro-Ohmmeters - DLRO100 Trade Information

Minimum Order Quantity
1 Piece

Payment Terms
Cash in Advance (CID)

Supply Ability
10 Pieces Per Month

Delivery Time
10 Days

Main Domestic Market
All India

About Digital Low Resistance Micro-Ohmmeters - DLRO100

The DLRO100 series is a compact and portable range of digital micro-ohmmeters designed for precise low-resistance measurement up to 100A DC. Using a 4-wire Kelvin measurement method, the series eliminates lead resistance errors, ensuring highly accurate and repeatable results. Ideal for field and workshop testing, these instruments are widely used for electrical maintenance, bonding, and switchgear contact resistance verification. The series includes models for 100A max test current, making it suitable for medium-current applications.

Key Features

High-precision low-resistance measurement
Compact and portable design
Micro-ohm resolution for accurate connector, busbar, and cable testing
Manual, auto, and continuous test modes
Rugged for field and workshop environments

Applications

Circuit breaker contact resistance testing
Busbar and joint resistance verification
Switchgear, panel, and transformer testing
Industrial bonding and earthing checks
Electrical maintenance and commissioning

High Precision and Rapid Testing

DLRO100 delivers exceptional accuracy (0.2% of reading 2 digits) and a fast response time, making it ideal for both fieldwork and laboratory use. Selectable test currents of 10A or 100A provide versatility, allowing reliable measurements across a broad resistance range from 0.1 to 1000. Rapid testing and adjustable display brightness enhance productivity-even in outdoor environments.

Robust Safety and Durability

Built to withstand challenging environments, the DLRO100 is certified to IEC61010-1 and CE standards and boasts CAT IV 600V safety protection. Over-voltage and over-current features, alongside an IP54 enclosure, guard against dust, splash, and electrical risk, ensuring safe operation in varied conditions.

Convenient Data Management and Operation

Up to 1000 test results can be stored in the internal memory, while USB and RS232 interfaces simplify data transfer and integration. The manual control mode enables easy operation and precise adjustments. The 5 m test leads and portable, lightweight design further contribute to straightforward setup and usage in both field and lab settings.

FAQ's of Digital Low Resistance Micro-Ohmmeters - DLRO100:

Q: How does the DLRO100 Micro-Ohmmeter ensure safety during operation?

A: The DLRO100 features CAT IV 600V safety rating, over-voltage and over-current protection, and safety interlocks. Its rugged IP54 enclosure protects against dust and splashes, while compliance with IEC61010-1 and CE standards ensures operator safety during low-resistance measurements.

Q: What is the typical process for conducting a resistance measurement with the DLRO100?

A: Start by connecting the supplied 5 m test leads to your target circuit. Select the desired test current (10A or 100A) and the measurement mode (forward or reverse polarity). Initiate the test manually, and results will be displayed on the large backlit LCD and stored for later retrieval if required.

Q: Where can the DLRO100 be used effectively?

A: The DLRO100 is ideal for use in both laboratory and field environments, including substations, manufacturing plants, and electrical maintenance locations. Its portable design and weather-resistant IP54 enclosure make it suitable for both indoor and outdoor operations.

Q: What is the benefit of using selectable current outputs in the DLRO100?

A: Selectable current outputs of 10A and 100A allow the DLRO100 to adapt to various testing scenarios, ensuring accurate low-resistance measurements across a wide range of applications and materials, including circuit breakers, switchgear, cables, and other critical equipment.

Q: How does data storage and transfer work on the DLRO100?

A: The DLRO100 can store up to 1000 test results internally. Data can be easily exported using the included USB or RS232 cables, facilitating integration with data management systems and simplifying reporting and analysis.

Q: When should the rechargeable battery be recharged and how long does it typically last?

A: The rechargeable lithium-ion battery provides enough power for up to 1000 tests per charge under typical operating conditions. Recharge the battery when alerted by the device to maintain optimal performance, especially during extended fieldwork.

Q: What applications benefit most from the DLRO100's features and capabilities?

A: The DLRO100 excels in measuring low resistance in electrical circuits, making it indispensable for quality assessment of circuit breakers, switchgear, busbars, cables, and other critical electrical components, both during installation and routine maintenance.

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