Temperature Calibrators

Temperature calibrators, also known as thermocouple calibrators, digital temperature calibrators, or thermal calibrators, are precision instruments designed to verify and adjust the performance of temperature sensors, transmitters, and measurement devices such as thermocouples and RTDs.

By providing a reliable reference, temperature calibrators help ensure measurement accuracy, maintain regulatory compliance, and support process reliability. Depending on the application, these devices range from compact handheld units to heavy-duty dry blocks suited for on-site industrial calibration.

What Is a Temperature Calibrator and What Does It Do?

A temperature calibrator generates a known and stable temperature environment or sensor signal, allowing technicians to test and adjust the output of temperature measurement devices. By comparing the device-under-test (DUT) readings with the temperature calibrator's reference, inaccuracies or drifts can be detected and corrected.

Temperature calibrators can be used with a variety of sensors, including thermocouples (types K, J, T, N, S, etc.), RTDs (such as PT100 and PT1000), and temperature transmitters used in control and monitoring systems.

How Do Temperature Calibrators Work?

Thermal calibrators operate by providing a stable reference for testing and adjusting temperature sensors. They work using two main approaches:

Temperature Source Calibration: Some calibrators, such as dry‑block or liquid bath types, create a controlled temperature environment. Sensors are placed directly in the calibrated zone, allowing accurate verification under stable thermal conditions.
Signal Simulation: Other calibrators simulate sensor outputs instead of controlling actual temperature. For example, millivolt signals for thermocouples or resistance values for RTDs can be generated to mimic real sensor readings.

Both approaches rely on maintaining accuracy and stability during testing. The calibrator maintains a precise temperature or signal, enabling comparison with the Device‑Under‑Test (DUT). Any deviation is noted, allowing adjustments to bring the DUT into specification.

Types of Temperature Calibrators

When choosing a temperature calibrator, it is important to consider which type you need. Different calibrators are designed for specific applications:

Thermocouple Calibrator: Simulates thermocouple voltages or provides a stable hot-junction temperature, making it ideal for calibrating meters, controllers, transmitters, data loggers, and recorders.
Dry‑well Calibrator: A block heater with sensor inserts that creates stable temperature zones. Perfect for checking dial gauges, digital thermometers, bulb switches, and other sensors that require calibration below or around ambient temperatures.
RTD Calibrator: Simulates RTD resistance or allows RTD probes to be immersed in a stable temperature zone.
Handheld/Portable Calibration Equipment: Compact, often battery-powered units designed for field use, enabling quick on-site verification of temperature instruments.
Benchtop/Precision Calibrators: High-accuracy models typically used in laboratories or calibration labs, offering broader temperature ranges, lower uncertainty, and precise control for critical applications.

Applications of Temperature Calibrators

Temperature calibrators are essential tools across a variety of industries in the Philippines:

Industrial Process Plants: Verify RTDs and thermocouples in boilers, pipelines, and heat exchangers.
Pharmaceutical & Food Processing: Ensure temperature sensors in reactors, ovens, and freezers provide accurate readings.
Calibration Laboratories: High-accuracy temperature calibrators are used to certify sensors and instruments.
Maintenance & Field Service: Portable thermocouple calibrators and handheld temperature calibration equipment allow field engineers to quickly verify sensor performance.

Features & Benefits of Temperature Calibrators

Temperature calibrators offer reliable, and versatile solutions for maintaining temperature measurement systems. Some of their main benefits include:

High Accuracy & Stability: Ensures thermocouples and RTDs deliver correct readings.
Versatile Sensor Coverage: Supports a wide range of sensors, including thermocouples and RTDs, with selectable temperature ranges.
Portable Formats: Handheld and field-ready calibrators allow technicians to quickly verify sensor performance on-site.
Ease of Documentation: Many calibrators offer data logging, report generation, and compliance features.
Cost-Saving: Early detection of sensor drift prevents errors, quality issues, and costly process interruptions.

How to Choose the Right Temperature Calibrator

Selecting the correct temperature calibrator ensures accurate, reliable readings and efficient calibration. Consider these factors:

Sensor Type Support: Verify that the calibrator supports the thermocouple types you use (K, J, T, N, S, etc.) and/or RTDs (PT100, PT1000).
Temperature Range & Stability: Choose a calibrator that covers your process range.
Portability vs. Bench Use: Decide between a handheld temperature calibrator for on-site field verification or a benchtop model for high-accuracy laboratory use.
Accuracy & Uncertainty: Review specifications for calibration uncertainty and traceability to ensure compliance with industry standards.
Connectivity & Logging: If you require data records, select a model with digital display, logging, or reporting features.
Budget & Local Pricing: Compare price and availability in the Philippines to balance cost with functionality and support.

Why Choose RS Philippines for Temperature Calibrators?

Find the right temperature calibrator for any application at RS Philippines. We offer a wide selection of precision instruments from trusted brands like Fluke, Time Electronics, and RS PRO at competitive prices. Browse our online range to explore thermocouple calibrators, data loggers, and multifunction calibrators suitable for industrial processes, laboratories, maintenance checks, and field service.

Ordering is simple. Select the products you need, add them to your cart, and complete your purchase through our secure online checkout. For detailed information on shipping times, costs, and coverage across the Philippines, please visit our Delivery Information page.