- Precision multifunction, temp, frequency, voltage, and mA calibrator
- Calibrates thermocouples and RTD temperature instruments
- Stores up to eight calibration results in memory for analysis
- Built-in 24 V Loop Power Supply
- Powerful, easy-to-use, high-accuracy temperature calibrator
- Test and calibrate temperature sensors and transmitters
- Measures 4 to 20 mA loops and can provide loop power
- Measures RTDs, thermocouples, ohms, and volts
- Source/simulates thermocouples, RTDs, volts, and ohms
- Exceptional stability (±0.005 °C) and axial uniformity (±0.02 °C over a 60 mm zone).
- Immersion depth to 203 mm (8 in)
- Optional ITS-90 reference input reads PRTs to ±0.006 °C
- Wide Temperature range from –45 °C to 700 °C
- Temperature ranges from –10°C to 375°C.
- Accuracy to ±0.25°C, with stability of ±0.05°C at 0°C.
- Equipped with an RS-232 interface for connectivity.
- 5608: –200 °C to 500 °C (80 mm minimum immersion)
- 5609: –200 °C to 670 °C (100 mm minimum immersion)
- ± 0.01 short-term stability
- Calibration not included, NVLAP-accredited calibration optional, lab code 200348-0
- Dry-well reference with 90 ° bend
- Supports four channels for PRTs, thermistors, and thermocouples, accommodating a variety of sensor types.
- Display eight user-selected data fields from any channel.
- Log up to 8,000 readings with date and time stamps for data tracking.
- Lightweight, portable, and fast
- Built-in two-channel readout for PRT, RTD, thermocouple, 4-20 mA current
- True reference thermometry with accuracy to ±0.01 °C
- Reference level performance in accuracy, stability and uniformity
- Quick to temperature
- Two-channel readout measures RTDs and TCs, and provides task documentation
- Full HART communicator (PC Option)
- Built in automatic annealing feature (ADT878-700 only)
- ISO 17025-accredited calibration w/data included
- Wide temperature range: –95 °C to 140 °C.
- Excellent accuracy
- Accuracy using built-in reference thermometer readout: ± 0.05 °C full range.
- Display accuracy: ± 0.2 °C full range.
- Best-in-class stability: ± 0.015 °C full range








