Ametek Jofra PTC Series Temperature Calibrators

The Ametek Jofra PTC series Temperature calibrators provide precision temperature calibration of sensors, whatever the type or format. This is accomplished through an innovative active dual zone heating technology.

The Jofra PTC-series features our well-known active dual-zone heating technology. Each heating zone is independently controlled for precision temperature calibration. The homogeneity in the lower part is close to that of a laboratory liquid bath. The lower zone ensures optimum heat dissipation throughout the entire calibration zone. The upper zone compensates for heat loss from the sensor under- test and from the open top. This design also eliminates the need for extra insulation of sensors-under-test and makes it possible to calibrate liquid-filled and other mechanical sensors.

Ametek Jofra PTC Features

• High accuracy:
  • ±0.11°F (±0.06°C) PTC-155
  • ±0.13°F (±0.07°C) PTC-125
  • ±0.15°F (±0.08°C) PTC-350
  • ±0.27°F (±0.15°C) PTC-660
• Wide temperature ranges:
  • -130 to 257°F (-90 to 125°C) PTC-125
  • -13 to 311°F (-25 to 155°C) PTC-155
  • 91 to 662°F (33 to 350°C) PTC-350
  • 91 to 1220°F (33 to 660°C) PTC-660
• Superior temperature homogeneity
  Intelligent reference sensors
• USB communication
• High speed heating and cooling times
• color display and user-friendly navigation
• Switch test (with B model)
• Auto-stepping