Fluke 712B | RTD Temperature Calibrator for 13 RTD Types & Resistance

RTD transmitters and temperature indicators need an accurate resistance reference to determine whether an error originates from the sensor input or the receiving instrument. The Fluke 712B RTD Calibrator measures and simulates 13 different RTD types together with resistance, providing a dedicated field tool for RTD-based temperature systems.

The calibrator can measure 4–20 mA current while simultaneously sourcing a temperature signal, allowing transmitter input and output to be checked together. Configurable 0% and 100% source values support fast 25% linearity tests, while automatic ramping and stepping make repetitive calibration more efficient. Dual inputs and a backlit display simplify field operation. The instrument is IP52 rated, tested for a 1 m drop and supplied with a traceable calibration certificate.

RTD Calibrator Selection Guide

Choose the 712B for systems based primarily on RTDs and resistance sensors. Select the 714B when thermocouple simulation and measurement are the main requirement.

Market Relevance

The Fluke 712B is well suited to Pakistan's pharmaceutical, food, chemical, textile, laboratory and industrial process plants using RTD temperature transmitters. Buy the Fluke 712B from Kamadi Pakistan for accurate RTD calibration and loop verification.

Key Features

• Measures and simulates 13 RTD types
  
• Resistance measurement and sourcing
  
• Simultaneous 4–20 mA measurement
  
• 25% step and linear ramp functions
  
• Rugged IP52 field design
  

Technical Specifications

• Model: Fluke 712B
  
• RTD Types: 13
  
• mA Measurement: 0–24 mA
  
• mA Resolution: 0.001 mA
  
• mA Accuracy: 0.01% + 2 µA
  
• Resistance Measurement: Up to 4000 Ω
  
• Resistance Source: Up to 4000 Ω
  
• Ingress Protection: IP52
  
• Drop Test: 1 m
  
• Power: 4 × AA batteries
  

Applications

• RTD transmitter calibration
  
• Temperature indicator testing
  
• Resistance-sensor simulation
  
• 4–20 mA temperature loop checks
  
• Temperature-system commissioning
  

Professional Tip: Match the RTD curve and coefficient exactly to the instrument under test; two nominally 100 Ω RTDs can use different resistance-temperature characteristics.