TD1470 Single and Double Arm Bridge Calibration Device

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The TD1470 is a high-precision DC resistance simulator designed for calibration and verification of measurement instruments requiring wide-range resistance simulation. With its advanced resistance synthesis technology, the TD1470 provides precise, stable, and repeatable outputs across a broad resistance range—from low micro-ohm levels to 100 Ω.

This instrument is suitable for applications such as calibration of single-arm and double-arm bridges, high-accuracy DC resistance meters, and digital micro-ohmmeters. It delivers excellent measurement uncertainty performance along with fine resolution adjustment, making it an ideal standard for metrology laboratories and calibration institutions.

Range	Fineness Adjustment	24h Uncertainty (ppm*RD + μΩ)	90 Days Uncertainty (ppm*RD + μΩ)	1 Year Uncertainty (ppm*RD + μΩ)	Input Current
1 mΩ	10 nΩ	50 + 0.5	75 + 0.5	100 + 0.5	1 A ~ 10 A
10 mΩ	100 nΩ	50 + 1	75 + 1	100 + 1	0.5 A ~ 5 A
100 mΩ	1 μΩ	50 + 3	75 + 3	100 + 3	0.3 A ~ 5 A
1 Ω	10 μΩ	50 + 15	75 + 15	100 + 15	0.05 A ~ 5 A
10 Ω	100 μΩ	50 + 150	75 + 150	100 + 150	10 mA ~ 300 mA
100 Ω	1 mΩ	50 + 1500	75 + 1500	100 + 1500	1 mA ~ 30 mA

General Specifications

Power Supply: AC (220 ± 22)V, (50 ± 2)Hz
Warm-Up Time: ≥1 hour (restart warm-up ≥2× shutdown duration)
Max Power Consumption: 150 VA
Operating Temperature: 18°C ~ 28°C
Storage Temperature: -10°C ~ 50°C
Operating Humidity: 20% ~ 80% R.H (non-condensing)
Storage Humidity: < 85% R.H (non-condensing)
Altitude: < 3000 m
Weight: Approx. 10 kg
Interfaces: RS-232, USB, LAN/IP
Dimensions: 400 mm (W) × 265 mm (D) × 190 mm (H)

Key Features

Wide adjustable DC resistance simulation from 1 mΩ to 100 Ω.
High resolution adjustment enabling ultra-fine control of micro-ohm resistance.
Excellent long-term stability with uncertainty as low as 50 ppm depending on range.
Designed for calibration of bridges, micro-ohmmeters, and precision resistance meters.
Multiple communication interfaces including USB, RS-232, and LAN (IP).
Built-in thermal control and protection ensures safe and stable measurement under high currents.
Suitable for laboratory-grade metrology and national standard verification systems.

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ONsys Technologies OPC Pvt Ltd was established in 2019 and has emerged as Indias preferred and leading supplier of precision test and measurement instrumentation, automated test systems, intelligent manufacturing systems, and test and automation turnkey solutions.Serve the increasing demand of Electronics and Electrical Test & Measurement equipment and customers application-based customized solutions of Indias rapidly growing Electronics Manufacturing industries. We supply, design, assemble, develop, and manufacture testing equipment, Automated Test Equipment (ATEs), Test Zig, and Test Benches as per requirement with highest global standards. To do this, ONsys invests heavily in sourcing, research, and development in order to offer great products with precision, reliability, and useful innovative test and measurement solutions for the technology industry.

TD1470 Single and Double Arm Bridge Calibration Device

General Specifications

Key Features

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