Additel 87X-1210 Thermocouple Calibration Furnaces
Key specifications
| Parameter | ADT875-1210 | ADT878-1210 |
|---|---|---|
| Temperature range | 100 to 1210°C | 100 to 1210°C |
| Display accuracy @ 100°C | ±1.2°C | ±1.0°C |
| Display accuracy @ 600°C | ±1.2°C | ±1.0°C |
| Display accuracy @ 900°C | ±1.6°C | ±1.2°C |
| Display accuracy @ 1210°C | ±2.0°C | ±1.5°C |
| Stability | ±0.1°C | ±0.1°C |
| Radial uniformity @ 1210°C | ±1.0°C | ±0.8°C |
| Axial uniformity @ 1210°C | ±1.5°C | ±1.0°C |
| Resolution | 0.01°C | 0.01°C |
| Heating time to 1210°C | ~50 min | ~50 min |
| Typical stability time | ~15 min | ~15 min |
| Weight | 10.6 kg | 10.6 kg |
The ADT878 offers tighter accuracy and uniformity specifications; its published specifications require the XR-style insert.
Main features
- 3-zone temperature control with Additel’s Adaptive Control technology for improved temperature stability and uniformity.
- Metallic interchangeable inserts for different thermocouple/probe configurations.
- 6.5-inch color touchscreen.
- 0.01°C resolution with °C, °F and K units.
- USB, LAN/RJ45, Wi-Fi and Bluetooth communications.
- Operating environment: 0–50°C, with guaranteed accuracy specified from 8–38°C.
- 90–254 VAC, 45–65 Hz, 580 W power requirement.
- Compact dimensions of approximately 345 × 170 × 330 mm.
Process Calibrator option
The PC option turns the furnace into a more complete thermocouple/process calibration system. It can measure a reference thermocouple plus up to four device-under-test channels. Depending on the channel, it can handle thermocouples, mA, voltage, switch testing and 24 VDC sourcing. It also supports documenting calibration tasks, pass/fail criteria and HART communication.
Typical applications
The 87X-1210 is suited to:
- Thermocouple calibration and verification
- Industrial temperature sensor calibration
- Calibration-laboratory work
- High-temperature transmitter verification
- Maintenance and field calibration
- Comparison calibration against a reference thermocouple
Additel states that each furnace is tested and calibrated in its accredited laboratory, with an ISO 17025-accredited calibration certificate supplied with the instrument.
Bottom line: the 87X-1210 is essentially a portable 1200°C-class thermocouple calibration furnace, with the ADT878 providing the tighter reference-grade specifications and the optional PC electronics adding substantial measurement/documentation capability.












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