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testo 557s – Smart digital manifold with Bluetooth and 4-way valve block

  • All results at a glance thanks to the large graphic display
  • Exceptionally compact and reliable thanks to the easy-to-handle, robust housing with IP 54 protection class
  • Simple, wireless measurement of vacuum and temperature via automatic Bluetooth® connection
  • Even greater flexibility for your measurements and documentation with the testo Smart App

The testo 557s digital manifold with Bluetooth and a 4-way valve block features a large graphic display, a compact, robust housing, guided measurement menus and the testo Smart App. Top-quality measurement technology, a high degree of reliability and smart functions for quick, easy measurements and documentation make the testo 557s manifold a reliable partner for your commissioning, servicing and maintenance of refrigeration and air conditioning systems and heat pumps.

 

APPLICATIONS

Refrigeration systems, air conditioning systems, heat pumps

  • Determination of high and low pressure, automatic determination of condensation and evaporation temperature and calculation of superheating/subcooling. All results can be read simultaneously on one screen
  • Tightness test: Recording and analysis of the pressure curve
  • Automatic calculation of the target superheat (in conjunction with the appropriate measuring instrument, e.g. Testo Smart Probe)
  • Measure vacuum: Graphic progression display of the measurement with indication of the start and differential value
  • Evacuation: Graphic progression display of the measurement with indication of the start and differential value (in conjunction with the appropriate Testo Smart Probe, e.g. testo 552i vacuum probe)
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Details

Product Description

Easier, more flexible measurements and documentation: With the testo 557s digital manifold with Bluetooth and 4-way valve block, you‘ll be ideally equipped for your measuring tasks in the field of commissioning, servicing and maintenance of refrigeration and air conditioning systems and heat pumps.

testo 557s – Smart digital manifold with Bluetooth and 4-way valve block

  • For exceptionally fast measurements on refrigeration and air conditioning systems and heat pumps
  • Large graphic display for easy evaluation of measurement results
  • Stored programs guide you through the measurement and make it possible to automatically determine key system parameters such as superheating, pressure drop test or evacuation
  • Straightforward to handle, with maximum flexibility for your application: Bluetooth probes for temperature, pressure and humidity connect to the manifold automatically
  • testo Smart App: Create digital documentation straight away on site, set your own favourites, always have the latest refrigerants thanks to automatic updates
  • Continuously high performance in all conditions: You can depend on this manifold from Testo – it combines proven Testo quality with excellent robustness

 

Delivery Scope

Are you interested in this measuring instrument? Testo has put together practical kits for you – so you’ll be optimally equipped to tackle your measuring tasks right away.

Technical Data

Temperature

Measuring range -50 to +150 °C
Accuracy ±0.5 °C
Resolution 0.1 °C
Probe connection 2 x Plug-in (NTC)

 

Pressure measurement

 

Measuring range -1 to 60 bar
Accuracy ±0.5 % fs
Resolution 0.01 bar
Probe connection 3 x 7/16″ – UNF + 1 x 5/8” – UNF
Overload rel. (high pressure) 65 bar

General technical data

 

Weight 1243 g
Dimensions 229 x 112.5 x 71 mm (LxWxH)
Operating temperature -20 to +50 °C
Protection class IP54
Product colour Black
Auto-off 10 min*
Battery type 4 x type AA batteries
Battery life 250 h with no illumination, no Bluetooth®h (without illumination, without Bluetooth®, without vacuum probe); 100 h with illumination and Bluetooth®
Radio range 150 m
Pressure media CFC
Refrigerants in instrument R1234yf; R744 (CO₂); R437A; R503; R452A; R500; R114; R444B; R407H; R422B; R434A; R410A; R290; R449A; R401B; R407F; R13; R123; R718 (H₂O); R404A; R125; R416A; R421B; R422C; R448A; R22; R407A; R409A; R12; R454B; R414B; R442A; R1233zd; R420A; R424A; R458A; R427A; R450A; R124; R502; R1234ze; R600a; R23; R402B; R455A; R454A; R407C; R453a; R513A; R401A; R422D; R402A; R507; R454C; R408A; R421A; R134a; R32; R452B; R438A
System requirements requires iOS 7.1 or newer; requires Android 4.3 or newer; requires mobile end device with Bluetooth 4.0

requires iOS 11.0 or newer; requires Android 6.0 or newer; requires mobile end device with Bluetooth 4.0
Refrigerants update via App 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
Storage temperature -20 to +60 °C

* when not connected via Bluetooth

Downloads

Product Brochures

Datasheet testo 557s

Manuals

Instruction manual testo 550s and 557s

Product Enquiry

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