The Transmille 3050A is the entry-level model in the 3000A series of multiproduct calibrators, designed to deliver fast, accurate, and economical calibration for a wide range of electrical instruments. Meeting the requirements of quality systems like ISO9000 and ISO17025, it provides a complete solution for laboratories and on-site applications, supplied ready-to-use with a thermocouple calibration adapter and a UKAS calibration certificate traceable to national standards .

This calibrator offers precision with 50 ppm accuracy, making it ideal for calibrating multimeters up to 4½ digits. It sources DC voltage from 0 to 1000V and DC current from 0 to 22A, as well as AC voltage (20mV to 1000V, 10Hz to 100kHz) and AC current (20µA to 22A, 10Hz to 10kHz). Additional capabilities include resistance measurement to 100MΩ, capacitance, frequency to 10MHz, and thermocouple simulation supporting types J, K, T, R, S, B, U, N, E, L, and C with ±0.09°C accuracy .

The 3050A utilizes advanced technologies, including a temperature-stabilized reference and Direct Digital Synthesis (DDS) for generating stable, jitter-free wideband AC waveforms . The versatility of the system is extended through its unique concept of external calibration adapters, dramatically increasing the range of instruments that can be calibrated cost-effectively. It is available with an optional internal 250 MHz oscilloscope calibration module, sine power option for power meter calibration, and an external clamp coil adapter for calibrating AC/DC clamp meters up to 1500A .

An integral part of the 3000A series system is its comprehensive software suite. ProCal, ProCal-Track, and the Virtual Front Panel software allow users to manage and automate laboratory tasks, control instruments via USB interface, generate custom certificates, and expand the calibrator's functionality from a PC . The instrument features a 3-year warranty and a recommended calibration interval of 12 months .