Chauvin DTR 8510 Transformer Ratiometer

The Chauvin Arnoux DTR 8510 is a portable digital transformer ratiometer designed for on-site testing of power, potential and current transformers. When connected to a non-energised transformer, the DTR accurately measures the primary-to-secondary turns ratio, while simultaneously displaying the polarity and excitation current. At each measurement, the DTR automatically checks for open windings, connections, circuit-breakers, short circuits (excess excitation current), incorrect test lead placement, and reverse polarity. Tests are performed at low voltage and, unlike on other ratiometers, step-down excitation is employed. This method, in conjunction with an integral H/X reverse protection circuit, guards against the generation of hazardous test voltages. Up to 10,000 tests can be stored in the DTR 8510’s internal memory. A large, dual line alphanumeric LCD with adjustable contrast and backlighting guarantees fast, accurate display and day/night readability. Both rugged and reliable, the DTR 8510 is equipped with an attractive, sealed structural polypropylene case designed to withstand the rigours of field use. FEATURES Automatic calibration and balancing. No adjustments required. Low-voltage test. Measures power transformers, VT/PTs and current transformer turns ratios. Displays turns ratio, excitation current, winding polarity and % deviation from the nameplate values. Large dual display with adjustable contrast. Up to 10,000 tests can be stored. USB port to simplify instrument configuration and downloading of test results. NiMH battery life of up to 10 hours. Chauvin Arnoux DTR8510 Specifications Ratio Range (VT/PT) Auto-Ranging 0.8000 to 8000:1. Accuracy (VT/PT) 0.8000 to 9.9999, +0.2% 10.000 to 999.99, +0.1% 1000.0 to 4999.9, +0.2% 5000.0 to 8000.0, +0.25%. Ratio Range (CT) Auto-Ranging 0.8000 to 1000.0. Accuracy (CT) 0.8000 to 1000.0, +0.55. Excitation Signal VT/PT Mode : 32 Vrms max; CT Mode: Auto Level 0 to 1 A, 0.1 to 4.5 Vrms. Excitation Current Display Range 0 to 1000 mA; Accuracy: + (2% of Reading + 2 mA). Excitation Frequency 70 Hz. Display Dual-line alphanumeric LCD, 16x2 characters with contrast adjustment and backlight control. Measurement Method In accordance with IEEE Std C57.12.90™-2006. Power Source Two 12V, 1650mAH NiMH rechargeable battery packs. Battery Life Up to 10 hrs of continuous operation. Low battery indication. Battery Charger Universal input (90 to 264Vrms input) smart recharger. Charging Time <4 hrs to full charge. Data Storage 10,000 tests. Date / Time Battery-backed, Real-time clock. Communication USB. 2.0 compliant, optically isolated, 115.2 KB. Software DataView® analysis software included. Protection IP 40 (Instrument lid open) per EN 60529 : IP 53 (Instrument lid closed) per EN 60529. CE Marking Safety Ratings EN 61010-1; 50V CAT IV; Pollution Degree 2. Leads 15 ft (4.6m) H & X shielded with colour-coded crocodile clips. Case Heavy-duty Polypropylene case, UL 94 V0 rated. Dimensions 10.70 x 9.76 x 5.12" (272 x 248 x 130 mm). Weight 8.1 lbs (3.7 kg). Chauvin DTR8510 warranty 1 year.

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