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Instruction Manual PDF | Quick Start Guide PDF
Description
The Testo 550s Basic Kit is an industrial instrumentation package designed for cost-effective commissioning, routine servicing, and digital testing of refrigeration units, heat pumps, and air conditioning equipment. This practical setup contains the Testo 550s digital manifold with a robust 2-way valve block and two fixed cable clamp temperature probes (NTC). It features a large graphic display for rapid evaluation of measurement data and supports wireless connectivity for optional Testo Smart Probes via Bluetooth. The system provides integrated data logging and process management using the Testo Smart App. Certified for use with Class A3 and A2L flammable refrigerants, it is housed in a ruggedized IP54 protective field housing.
B2B Applications
- HVAC Circuit Commissioning: Checking low-pressure and high-pressure sides with wired temperature analysis for precise automated calculation of superheating and subcooling.
- Heat Pump Technical Support: Measuring continuous temperature trends on pipe surfaces using industrial fixed-cable clamp probes.
- Tightness Testing Protocols: Running app-guided pressure drop tests to confirm absolute mechanical circuit tightness before system operations.
Technical Parameters
| Pressure Measuring Range | -1 to 60 bar |
| Pressure Measurement Accuracy | ±0.5 % fs |
| Temperature Measuring Range | -50 to +150 °C |
| Temperature Measurement Accuracy | ±0.5 °C |
| Housing Protection Index | IP54 |
| Wireless RF Interface | Bluetooth (Range up to 150 m) |
Package Contents
- Testo 550s digital manifold with 2-way valve block
- 2 x fixed cable clamp temperature probes (NTC)
- Industrial transport case
- Factory calibration protocol