RTD Simulator

RTD Simulator

(Resistance Temperature Detector Simulator)

An RTD Simulator is a precision calibration instrument used to simulate the resistance output of an RTD sensor, allowing engineers and technicians to test and calibrate temperature measuring instruments such as temperature indicators, transmitters, controllers, and data loggers without using actual temperature sources.

Description

Purpose & Function

RTD Simulators mimic the resistance values of RTD sensors (like Pt100, Pt500, or Pt1000) corresponding to specific temperatures. When connected to a device that reads RTD inputs, it allows verification, calibration, and troubleshooting of the device’s accuracy and response.

Features

Key Features

  • Simulation Range:
  • Commonly from –200Β°C to +850Β°C (depending on the RTD type)
  • Selectable RTD Types:
  • Pt100 (most common)
  • Pt1000, Ni120, Cu10 (in advanced models)
  • Accuracy: Β±0.1Β°C to Β±0.5Β°C (depending on model)
  • Resolution: 0.1Β°C or 1Β°C selectable
  • Output Type: Simulated resistance corresponding to RTD curve
  • Output Connection:
  • 2-wire, 3-wire, or 4-wire (for compatibility with all systems)
  • Power Supply:
  • Battery operated (typically 9V or Li-ion rechargeable)
  • Some models offer USB or adapter power
  • Build: Portable handheld device or bench-top unit with rotary switches or digital setting

Benefits

Benefits

  • Safe and Accurate – Eliminates the need for heated probes during calibration
  • Time-Saving – Instant temperature simulation at any point
  • Cost-Effective – Reduces wear on RTD sensors and simplifies field diagnostics
  • Portable – Ideal for on-site and lab calibration tasks
  • Versatile – Works with various RTD-based instruments

Applications

Applications

  • Calibration of RTD temperature indicators
  • Testing of PLC/SCADA RTD input cards
  • Verification of temperature controllers and transmitters
  • Quality assurance in instrumentation labs
  • Field service and troubleshooting of RTD-based systems

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