AEMC Instruments 2136.55 Offers

The DTR® 8511 was built for fast, accurate, and hassle-free testing of transformers (power, VT/PTs, and CTs). With its brighter display, ergonomic design, and built-in safety checks, you’ll have confidence in every result. While maintaining the fully automatic VT/PT and CT testing functions that technicians trust for accurate ratio and excitation current measurements, the DTR® 8511 delivers a lighter, more ergonomic design with advanced safety features built in. A brighter, larger display improves visibility in any environment, while an oversized test button allows for easy operation, even with gloves on.

This ratiometer makes transformer ratio testing fast, accurate, and hassle-free. Designed for the field, it’s fully automatic. No calibration, range selection, hand cranking or tedious balancing required—no wasted time! Built-in checks catch lead reversals and opens, giving you confidence in every measurement. Results display quickly, including turns ratio, excitation current, and nameplate deviation, so you know exactly what you’re working with.

You can also save nameplate voltages and compare results in real time as data is gathered. Test data can then be downloaded to a PC and analyzed with the included DataView® software, which also provides full instrument control. When connected via the isolated USB interface, results can be managed and reviewed through the DTR® Control Panel for streamlined reporting and analysis.

Features

• Wide ratio range: Accurately measures transformer ratios up to 8000:1 for VT/PT mode and 1000:1 for CT mode
• Higher excitation current capability up to 2 A and optimized 64 Hz test frequency for more accurate field simulations
• Advanced low-voltage step-down measurement: Applies test current to the primary side windings, enhancing operator safety and enabling testing across a wider range of transformer types and sizes
• Automatic test cycles: Quickly checks for lead reversal and open circuits with no manual balancing required
• Built-in continuity testing: Detects open transformer windings quickly
• Deviation calculations: Compare measured values to stored nameplate data for instant pass/fail results
• Large storage capacity: Save up to 9801 test results for easy recall and reporting
• Seamless data management and connectivity: Connect directly to your PC via the isolated USB interface to manage results, configure nameplate values, and generate professional reports with the included DataView® software and DTR® Control Panel
• Rugged and portable: Lightweight, field-ready design with an IP53-rated protective case (with lid closed)
• Flexible power options: Operates on NiMH batteries or 12 V DC external supply and the batteries can be recharged through USB-C connector or 12 V DC external supply
• User-friendly interface: Bright backlit 4-line display, intuitive navigation keys, and audible test alerts
• Fully automatic: No calibration, range selection, hand cranking, or tedious balancing required
• Displays turns ratio, excitation current, winding polarity, and % deviation from the nameplate values
• Confidence in every result: Built-in safety checks catch wiring errors and connection issues, while deviation calculations compare against stored nameplate data for clear pass/fail confirmation
• Flexible Reporting: Generate professional reports instantly with built-in templates or customize your own
• USB type C connection
• Measurement output (H) 5-pin connector
• LCD display
• Measurement input (X) 3-pin connector
• Navigation buttons
• 12 V DC input connector
• Power button

DataView® Software

Our DataView® software makes it easier to troubleshoot, optimize performance, and document results. By connecting your DTR® 8511 directly to your computer, DataView® saves time, improves accuracy, and streamlines your workflow. With DataView®, you can:

• Connect easily: Link your instrument to a computer via USB
• See data live: Display and analyze real‑time measurements in a clear, frame‑style interface
• Retrieve past results: Download and review previously recorded data
• Fine‑tune settings: Configure a wide variety of instrument parameters
• Maintain your device: Erase stored content and perform instrument upkeep
• Generate reports effortlessly: Use standard templates or customize your own for professional reporting

DTR® Control Panel

All DTR® models will interact with a PC through the DTR® Control Panel. This Control Panel is designed to support the new DTR® 8511 and the older DTR® 8510. In general, DataView® core features are for creating, viewing, editing, and storing DataView® reports; while the DTR® Control Panel is for connecting to, configuring, viewing measurements on, and downloading data from the instrument.

With DataView®, you’re always in control. Access powerful features directly through the DataView® icon for quick navigation across all your AEMC® instruments, or streamline your workflow with the DTR® Control Panel for fast, focused interaction with your DTR® instruments. Need to review and compare multiple archived reports? Our DataView® software makes it effortless, giving you maximum flexibility and efficiency in how you manage your data

Applications

• Testing transformers (power, VT/PT, and CT)
• Pole mount transformer continuity and ratio tests
• Padmount single and three phase transformers continuity and ratio tests
• Switchgear CPT (control power transformers) and CT
• Nameplate verification, commissioning and maintenance testing of frequently used transformers in industrial power distribution
• Quality control in transformer manufacturing and rewinding