Temperature calibrator PTCt series

for thermocouplesfor RTD sensorsfor temperature sensors

Overview
The PTCt Series builds on the proven PTC dry-block temperature calibrator platform and introduces improved usability, enhanced calibration visibility, and extended functionality. The instruments provide stable and accurate temperature control for calibration of RTDs, thermocouples, transmitters, and temperature switches in both industrial and laboratory environments. With an updated user interface and improved workflow support, the PTCt Series enables efficient, repeatable, and well-documented calibration tasks.

Key features

• Touchscreen user interface with configurable screen views
• Graphical calibration display and remote access (Option RG – Remote & Graph)
• Automated calibration functions including Auto Step and switch test
• Dual sensor-under-test capability for parallel calibration (model B)
• Integrated connectivity for data transfer, remote access, and documentation

Improved usability for calibration workflows
The PTCt Series improves ease of use compared to traditional temperature calibrators:

• Touchscreen operation replaces push-button interface
• Configurable screen layouts for different calibration tasks
• Fixed status line with continuous access to calibration data

Graphical calibration and remote access (Option RG)
Option RG (Remote & Graph) enhances visibility and control of the calibration process:

• Graphical indication of temperature stability and calibration progress
• Real-time visualization of calibration behavior and deviations
• Remote monitoring and control via web browser over Wi‑Fi or Ethernet

Automation and multi-sensor calibration
The PTCt Series supports efficient and repeatable calibration processes:

• Automated calibration sequences using Auto Step
• Advanced switch testing with multiple test runs
• Parallel calibration of two sensors (model B)

Connectivity and documentation
Modern calibration environments require structured data handling and traceability:

• File export for calibration results
• Screenshot capture for reporting
• User-defined file naming
• Connectivity via USB, Ethernet, and Wi‑Fi

Model table
Model | Temperature range | Positioning | Application focus
PTCt-125 | –90 to 125 °C (–130 to 257 °F) | Low temperature | Laboratory and controlled environments
PTCt-155 | –30 to 155 °C (–22 to 311 °F) | Low to medium temperature | General industrial and versatile use
PTCt-350 | 33 to 350 °C (91 to 662 °F) | Medium temperature | Industrial process calibration
PTCt-425 | 33 to 425 °C (91 to 797 °F) | Medium to high temperature | Industrial applications requiring higher temperatures
PTCt-660 | 33 to 660 °C (91 to 1220 °F) | High temperature | Energy and high-temperature calibration

Applications

• Calibration of RTDs and thermocouples
• Testing of temperature transmitters and switches
• Industrial process calibration and validation
• Maintenance and service calibration
• Laboratory and field calibration tasks

Technical specifications

• Touchscreen user interface; configurable screen views
• Graphical calibration display and optional remote monitoring/control (Option RG)
• Automated functions: Auto Step, advanced switch test sequences
• Dual sensor-under-test (parallel calibration) available on model B
• Connectivity: USB, Ethernet, Wi‑Fi; file export and screenshot capture for traceability
• Temperature model ranges: PTCt-125 (–90 to 125 °C), PTCt-155 (–30 to 155 °C), PTCt-350 (33 to 350 °C), PTCt-425 (33 to 425 °C), PTCt-660 (33 to 660 °C)
• Intended for RTDs, thermocouples, transmitters, and temperature switches in field and laboratory environments
• Supports efficient, repeatable, and documented calibration workflows