This item is a excellent condition Ametek Jofra ATC-650A Dry-Block Temperature Calibrator (650 degC). Comes with hard case, power cord, 3X inserts and NIST traceable certificate. Calibrated to NIST traceable standards on November 17, 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 ATC-650A DryBlock Temperature Calibrator (650 degC) NIST Calibrated
The ATC-650A is a high-performance dry-block temperature calibrator from Ametek’s Jofra line. Designed for accurate on-site calibration, it combines laboratory-level precision with field portability. It uses a dual-zone heating block to provide excellent temperature homogeneity and stability. The unit supports automatic calibration routines, input for reference sensors, and control via RS-232 with JOFRA’s JOFRACAL software.
Temperature Range 33 °C to 650 °C (91 °F to 1202 °F) Accuracy (12-month) ±0.005% reading + 0.005% full scale (with external reference) ARCO Engineering
For thermocouples (e.g., type K, J): ±0.11 °C at 650 °C.Stability ±0.01 °C (±0.018 °F) Immersion Depth 150 mm / ~5.9 in Instrumart+1 Block Diameter 30 mm (for ATC-320/650 models) Power Consumption ~1,150 VA / ~1.15 kW (for ATC-650) Circuitry MVI (Mains Variance Immunity) for enhanced temperature stability under variable power supply