The R&D 650TS is a portable dry block temperature calibrator designed for onsite calibration of temperature sensors such as thermocouples, RTDs, temperature gauges, switches, and transmitters. It provides a stable isothermal environment for comparison calibration.
Key Features
- Wide temperature range: 30°C to 650°C
- Portable, compact design:Â 12 x 20 x 22.5 cm (WxDxH), only 5.8 kg for easy field use
- Fast heating and cooling: Ambient to 650°C in 12 minutes; 650°C to 100°C in 28 minutes
- Stabilization time:Â 12 minutes
- High stability: ±0.1°C bath stability
- Resolution: 0.1°C with °C/°F switchable LED display
- Switch test function:Â Provided for thermoswitch calibration
Technical Specifications
| Parameter | Specification |
|---|---|
| Temperature Range | 30 to 650°C |
| Accuracy | ±1.0°C |
| Bath Stability | ±0.1°C |
| Radial Uniformity | ±0.05°C @ 50°C; ±0.1°C @ 650°C |
| Resolution | 0.1°C |
| Display | LED Green & Orange, °C/°F switchable |
| Heating Time | 12 min (ambient to 650°C) |
| Cooling Time | 28 min (650°C to 100°C) |
| Stabilization Time | 12 min |
| Immersion Depth | 120 mm |
| Immersion Diameter | 25.4 mm |
| Dimensions (with bush) | 120 x 200 x 225 mm (WxDxH) |
| Weight (approx.) | 5.8 kg |
| Power Supply | 230V AC ±2.5% / 50 Hz, 1.6 KW (or 115V AC ±2.5% / 60 Hz, 1.2 KW optional) |
| Switch Test | Provided |
Communications
The unit features RS485 serial communication, enabling PC connectivity for:
- Remote monitoring and control
- Data logging
- Automated calibration routines
- Integration with calibration management software
Applications
- Onsite calibration of thermocouples, RTDs, temperature gauges, and switches
- Laboratory temperature calibration
- Process industry temperature sensor verification
- Field service and maintenance applications



























