Key facts
- Brand
- testo
- Model
- testo 549
- Category
- Other Electronics
- Documents
- 3
- Languages
- EN · ES
- Last added
- 2023-10-17
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Testo 549/550 Digital Refrigerant Analyser User Manual
This manual provides instructions for using the Testo 549 and 550 digital refrigerant analysers. It includes safety guidelines, technical specifications, product description, initial setup, and measurement procedures. The devices are designed for qualified technicians to measure, adapt, and monitor refrigerant pressures and temperatures in HVAC systems. They support 60 refrigerants and are compatible with water and glycol, but not ammonia-based refrigerants. Bluetooth connectivity is available on the 550 model. This manual is written in Spanish.
Read onlinetesto 549 specifications
| Pressure measuring range | -100 to 6000 kPa / -0.1 to 6 Mpa / -1 to 60 bar (rel) / -14.7 to 870 psi |
|---|---|
| Temperature measuring range | -50 to +150 °C / -58 to 302°F |
| Vacuum measuring range | -1 to 0 bar / -14.7 to 0 psi |
| Power supply | 4x 1.5 V, type AA/mignon/LR6 |
| Battery life | approx. 250h |
| Operating temperature | -20 to 50 °C / -4 to 122 °F |
| Bluetooth Range | > 20 m (free field) |
All testo 549 documents by type
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Questions answered in these manuals
Can the testo 549 and testo 550 be used with ammonia?
No, the instruments are not compatible with refrigerants containing ammonia.
Who is authorized to use the testo 549 and testo 550?
They may only be used by qualified authorized personnel.
What is the Bluetooth range for the Testo 550?
The Bluetooth range is less than 20 meters in free field conditions.
From: Testo 549/550 Digital Refrigerant Analyser User Manual
Can the Testo 549/550 be used in explosive environments?
No, the instruments must not be used in potentially explosive areas.
From: Testo 549/550 Digital Refrigerant Analyser User Manual
What refrigerants are compatible with the Testo 549 and 550?
The instruments are compatible with most non-corrosive refrigerants, water, and glycol. They are not compatible with refrigerants containing ammonia.
How do I switch on the instrument?
Press the [ / ] key to switch on the instrument. Zero the pressure sensors before every measurement by pressing the [P=0] key for 3 seconds.