TD1855 Multifunction Calibrator Function Introduction

TD1855 Multifunction Calibrator: Precision, Versatility, and Exceptional Value

TUNKIA’s TD1855 Multifunction Calibrator is a high-performance multimeter calibration system designed to meet the diverse calibration needs of modern electrical laboratories. As a multifunctional calibrator, TD1855 Multifunction Calibrator integrates AC/DC voltage, current, resistance, power, and frequency output into a single compact platform. With an accuracy class of 0.05, TD1855 Multifunction Calibrator ensures reliable and precise outputs across a broad range, making it ideal for calibrating 3.5-digit analog or digital multimeters, as well as single-function instruments such as voltmeters, ammeters, ohmmeters, and power meters.

TD1855 Multifunction Calibrator offers outstanding cost performance and functional coverage, supporting a wide array of calibration tasks:

Comprehensive Output Ranges of TD1855 Multifunction Calibrator

• DC Voltage: 20 mV to 1100 V

• DC Current: 2 μA to 22 A (up to 33 A optional)

• AC Voltage: 20 mV to 1100 V
  

• AC Current: 200 μA to 22 A (up to 33 A optional)

• Sinusoidal Frequency: 45 Hz to 1100 Hz

• Square Wave Frequency: up to 2 MHz

• Simulated DC Resistance: 10 Ω to 220 MΩ, continuously adjustable

• AC/DC Power and Phase Angle Output

• Multiple Value Output Modes

Power Meter Calibration Capabilities of TD1855 Multifunction Calibrator

A virtual power standard source formed by independent AC/DC voltage and current outputs with adjustable phase makes the TD1855 highly suitable for calibrating AC/DC power meters. It supports the calibration of:

• DC power meters (accuracy class 0.5 and below)

• Active, reactive, and apparent power meters

• Power frequency phase meters

• Power factor meters

Clamp Ammeter Calibration (Optional) of TD1855 Multifunction Calibrator

When combined with the TD1020 current coil (50 turns), TD1855 Multifunction Calibrator can generate equivalent current outputs of up to 1000 At by passing 20 A standard AC/DC current—ideal for calibrating clamp ammeters or current clamps with accuracy class 1 and below.
For higher-accuracy clamp ammeter calibration, TD1050 clamp ammeter calibration device is recommended.

AC/DC Transducer Calibration (Optional) of TD1855 Multifunction Calibrator

Equipped with an optional small-signal measurement function, TD1855 Multifunction Calibrator supports DC signal inputs up to 12 V or 24 mA.
Working in tandem with its multi-function standard source output, the system can verify the proportional error of AC/DC voltage and current transducers efficiently.

TD1855 Multifunction Calibrator Additional Features

• Remote adjustment and automation (optional)

• Flexible output control for streamlined calibration

• Modular expandability for future-proof testing needs

Whether you are operating in a metrology lab, manufacturing facility, or service center, TD1855 Multifunction Calibrator offers the precision, flexibility, and performance needed to simplify your calibration workflows—while delivering exceptional value and reliability.