“testo 549 – Digital Manifold for accurate measurements Installation and maintenance of air conditioning, refrigeration systems and heat pumps has never been more convenient. With its durable, metal 2-way valve block, rugged housing, suspension hook and illuminated display, the manifold is ideal for harsh working environments. Store up to 60 refrigerants in just one instrument and accurately measure high and low pressure along with evaporation and saturation temperature. Optional temperature probes provide instant calculations of superheating and subcooling. Technical Data Temperature measuring range: -58° to +302°F / – 50° to +150°C Temperature measurement accuracy: ±0.9 °F / ±0.5 °C Pressure measuring range: -15 to 870 psi / -1 to 60 bar Pressure measurement accuracy: ±0.5 % of full-scale value Probe Connection: 3 x ¼” SAE Overload rel. (high pressure): 943 psi / 65 bar Vacuum measuring range: -15 to 0 psi / -1 to 0 bar Weight: 37.39 oz. / 1060 g Dimensions: 7.87 x 4.29 x 2.48 in. / 200 x 109 x 63 mm Operating temperature: -4° to 122 °F / -20° to +50 °C Protection class: IP42 Refrigerant instruments: R114; R12; R123; R1233zd; R1234yf; R1234ze; R124; R125; R13; R134a; R22; R23; R290; R32; R401A; R401B; R402A; R402B; R404A; R407A; R407C; R407F; R407H; R408A; R409A; R410A; R414B; R416A; R420A; R421A; R421B; R422B; R422C; R422D; R424A; R427A; R434A; R437A; R438A; R442A; R444B; R448A; R449A; R450A; R452A; R452B; R453a; R454A; R454B; R454C; R455A; R458A; R500; R502; R503; R507; R513A; R600a; R718 (H₂O); R744 (CO₂) Refrigerants update by Testo Service: R11; FX80; I12A; R1150; R1270; R13B1; R14; R142B; R152A; R161; R170; R227; R236fa; R245fa; R401C; R406A; R407B; R407D; R41; Ra11A; R412A; R413A; R417A; R417B; R417C; R422A; R426A; R508A; R508B; R600; RIS89; SP22 System requirements: requires iOS 7.1 or newer; requires Android 4.3 or newer; requires mobile end device with Bluetooth 4.0 Scope of Delivery: ✓ testo 549 digital 2-valve manifold including batteries ✓ Certificate of conformity ✓ User’s manual”
Testo was founded in Lenzkirch, in the Black Forest region of Germany, in 1957 and has since designed, developed, and manufactured portable test and measurement instrumentation and solutions. Backed by 60 years of measuring engineering experience, testo’s mission is to provide the highest quality, service, and value in the industry.
Testo’s first product manufactured was a simple electronic thermometer. Today, the product line has expanded to include a large variety of temperature measuring instruments, such as data loggers, air velocity meters, humidity and dew point meters, refrigeration service analyzers, multifunction instruments, stack gas analyzers and air emission monitors, water analyzers, tachometers, sound, pressure, and light meters, and thermal imagers.
Reliably and accurately perform your system testing and servicing with the testo 549 digital manifold
The testo 549 digital manifold replaces analog gauges for increased speed and performance on the job. Digital accuracy ensures reliable readings every time and with the testo 549, you can display the saturation / evaporation temperatures for up to 60 refrigerants. Optional temperature probes are available to instantly display superheat and sub-cooling calculations.
- 60 refrigerant profiles stored in the instrument
- 2-way valve block with three connections and sight glass
- Measures high side / low side pressure and displays saturation / evaporation temperatures
- Large 2-line backlit display
- Ability to provide real-time superheat and sub-cooling with optional temperature probes
The convenient suspension hook assures a secure attachment of the digital manifold during measurement while the rugged housing includes a metal frame to protect the digital manifold from impacts and ensures years of dependable service.
Your testo 549 digital manifold comes with batteries, certificate of conformity, and user’s manual.
|Analog||testo 549||testo 550||testo 557||testo 570|
|Identical pressure measuring range HP/LP||✘||Up to 60 bar||Up to 60 bar||Up to 60 bar||Up to 50 bar|
|Pressure measurement accuracy||> 1 % of f.v.||> 0.5 % of f.v.||> 0.5 % of f.v.||> 0.5 % of f.v.||> 0.5 % of f.v.|
|Integrated temperature measurement||✘||✔ (Up to 2 temperature probes)`||✔ (Up to 2 temperature probes)||✔ (Up to 2 temperature probes)||✔ (Up to 3 temperature probes)|
|Four-way valve manifold||Product-dependent||✘||✘||✓||✓|
|Internal memory, documentation||✘||✘||With the App||With the App||✓|
|Refrigerants stored (update possible)||max. 4 ( ✘ )||60 (via testo service)||60 (Possible on site via App)||60 (Possible on site via App)||40 (Via testo EasyKool software)|
|Automatic ambient pressure measurement||✘||✘||✘||✓||✓|
|Heat pump mode||✘||✓||✓||✓||✓|
|Temperature-compensated leakage testing||✘||✓||✓||✓||✓|
|Vacuum measurement||✘||Indication||Indication||Highly precise, with external probe||Accurate and robust|