This item is a excellent condition Ametek Jofra CTC 320 B Dry Block Calibrator. Comes with hard case, power cord, 3X inserts and NIST traceable certificate. Calibrated to NIST traceable standards on September 16, 2025. All pictures are of the actual unit and accessories.
This item comes with a 6 Month (180 day) warranty. All functions are guaranteed to work or money will be refunded.
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Item is in-stock and located in Texas.
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Ametek Jofra CTC 320 B Dry Block Calibrator NIST Calibrated
The CTC-320 B is part of Jofra’s CTC series of compact dry-block temperature calibrators. The “B” version denotes a deep-well model. It’s built for industrial or lab use where you need stable temperature calibration for sensors (RTDs, thermocouples, thermoswitches, etc.), especially those with longer probes or liquid-filled types.
Temperature range (set / operating) ~ 33 to 320 °C (91 to 608 °F) Scribd+2JM Test Systems+2 Accuracy ± 0.5°C (with internal reference sensor) Scribd+1 Stability ± 0.1°C after stabilization (typically 10 min, reference probe in center of insert) Scribd+1 Immersion depth (deep-well “B” version) ~ 190 mm (≈ 7.5 in) Scribd+2JM Test Systems+2 Diameter of the well / insert ~ 26 mm (≈ 1.0 in) Scribd+1 Heating time (to go from ~ambient to max) ~ 20 minutes for 320 °C JM Test Systems+1 Cooling time (from 320 °C to ~100 °C) ~ 22 minutes transcat.ca+1 Resolution User-selectable between 0.1 °C/°F or 1.0 °C/°F