AMETEK continues to develop new techniques to improve performance, accuracy, convenience and functionality of the well-known JOFRA calibration products. By doing so, we maintain our position as the leading worldwide manufacturers of temperature dry-block calibrators.

The PTC calibrator comes in three different models:

• Model A - basic model, without input
• Model B - full model, with DLC sensor input and input for reference sensor and sensor-under-test
• Model C - middel model with DLC sensor input and input for reference sensor

The PTC-125 with both heating and cooling capabilities features the FPSC (Free piston stirling cooler) as the cooling source. It is much more efficient than thermo-electric (Peltier) coolers.

Models and Temperature Ranges:
PTC-125 from -90 to 125°C (-130 to 257°F)
PTC-155 from -25 to 155°C (-22 to 311°F)
PTC-350 from 33 to 350°C (91 to 662°F)
PTC-660 from 33 to 660°C (91 to 1220°F)