Ametek Jofra RTCt-157 Reference Temperature Calibrator

Ametek Jofra RTCt-157 reference temperature calibrator has been designed to improve performance, accuracy and functionality with its state-of-the-art features.

There are three models of the RTCt-157 these include.

1. RTCt157 A reference temperature calibrator base model only
2. RTCt-157 B reference temperature calibrator with input for reference sensor, DLC sensor and sensors under-test
3. RTCt-157 C reference temperature calibrator with input for refence sensor and DLC sensor.

• Note reference sensor and DLC sensors sold separately.

The RTCt‑Series delivers the industry’s most advanced dry‑block calibration performance, built for professionals who require complete confidence, high stability, and a streamlined user experience from deep‑cold to high‑temperature applications. Designed for both laboratory and field environments, RTCt calibrators combine cutting‑edge control technology, intelligent sensor integration, and a modern touchscreen interface to ensure fast, accurate, and fully traceable temperature calibrations.

A Unified Platform for Every Calibration Need

All RTCt calibrators share a powerful core platform—ensuring consistent operation, intuitive workflows, and superior temperature control across the series.

Intuitive Touchscreen Interface

The RTCt interface provides clear navigation with:

• Real‑time adaptive graphing
• Highlighted active inputs for error‑free operation
• Quick access to Calibration, Auto Step, Auto Calibration and Switch Test modes

Real‑Time Adaptive Graphing & Wireless Connectivity for Remote Control

The display automatically adjusts resolution when stability criteria are met, revealing micro‑deviations that conventional graphs would overlook. Every RTCt model includes Wi‑Fi for browser‑based monitoring and control—ideal for cleanrooms, production lines, or automated workflows.

Dynamic Load Compensation (DLC) & Dual‑Sensor Input for Parallel Calibration

Patented DLC technology monitors and compensates for thermal differences caused by sensor mass or multiple probes—maintaining uniform well temperature even in demanding conditions. Most RTCt models allow simultaneous calibration of two sensors to reduce downtime and increase throughput.

Flexible, Automated Workflows

• Auto Step (up to 20 programmable steps)
• Switch testing with automatic open/close/hysteresis capture (Model B)
• Built‑in screenshot for instant documentation

Built for Regulated, High‑Accuracy Industries

The RTCt‑Series is trusted across sectors where documentation, compliance, and repeatability are essential:

• Pharmaceutical & biotech
• Food & beverage production
• Aerospace component testing
• Automotive and EV development
• Energy & power generation
• Industrial automation and quality control

Accessories & System Enhancements

Multi‑Hole Inserts (Metric & Imperial) & Special Carrying Case

Accommodates a wide range of sensor diameters with space for reference and DLC sensors. Compartmentalized, protective, and optimized for field portability—fits sensors, inserts, and support tools.

JofraCal Calibration Software

• Automates sensor calibration routines
• Generates certificates
• Integrates with ASM scanner for calibrating up to 24 sensors simultaneously

Model Selector

Use this guide to choose the right RTCt calibrator for your application: