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Data Sheet | Instruction Manual
Testo 550 Digital Manifold Kit with Bluetooth Connectivity
The Testo 550 digital manifold kit is an industrial-grade instrumentation system engineered for high-precision maintenance, diagnostics, and data logging on air conditioning systems, refrigeration networks, and technical heat pumps. Equipped with a heavy-duty 2-way metal valve block featuring 3 connections and 3 hose holders, this multi-parameter platform delivers rapid tracking of system pressures and temperatures. The integrated automatic superheating and subcooling calculation matrix covers 60 pre-stored profiles, eliminating error-prone manual tasks. Featuring built-in Bluetooth communication, the hardware syncs directly with the free Testo Smart App, transforming mobile devices into real-time graphical displays with automated PDF reporting functionality.
Industrial & HVAC Applications
- Refrigeration Plant Commissioning: Simultaneous calculation of high/low pressure baselines and automated core thermal transitions.
- Heat Pump Performance Mapping: Automatic heat pump mode parameters alignment without disconnecting technical refrigerant lines.
- System Leakage Diagnostic Auditing: High-stability, temperature-compensated leakage verification routines to secure long-term system sealing integrity.
Technical Characteristics
| Pressure Measuring Scale | -1 to 60 bar with 0.01 bar resolution steps |
| Pressure Measurement Accuracy | ±0.5% of full-scale value (fsv) |
| Overload Resistance Peak | 65 bar high-pressure maximum threshold |
| Temperature Measuring Range | -50 to +150 °C with NTC thermistor sensor core |
| Temperature System Accuracy | ±0.5 °C with 0.1 °C scaling step |
| Physical Ingress Rating | Certified IP42 impact and fluid protection structure |
| Wireless Synchronization Range | Up to 20 meters unobstructed path via Bluetooth 4.0 |
| Power Supply Lifecycle | Up to 250 hours continuous runtime (without illumination and Bluetooth active) |
| Refrigerant Profile Block | 60 onboard profiles with automated digital app updates |
Package Contents
- Testo 2-way digital manifold logging module
- Set of 3 filling tubes (blue, red, yellow, 1.5 m length, 7/16" UNF)
- 2x external NTC clamp temperature probes for direct pipe mapping
- Heavy-duty transport storage case and calibration protocol documents