Are you primarily entrusted with the commissioning or maintenance of air conditioning and refrigeration systems, along with heat pumps? If so, the testo 557 is the ideal digital manifold for you: like the testo 550, this digital manifold replaces multiple tools in the air conditioning and refrigeration industry and can be connected to a practical App. As well as the features of the testo 550 manifold, the testo 557 offers a high-precision external Pirani gauge for vacuum measurement: this enables the quick, safe evacuation of refrigeration systems and heat pumps.
State-of-the-art technology, really easy work: the digital manifold kit in detail
The testo 557 4-way manifold was developed to lighten your workload, to organize your working time more efficiently and to deliver more accurate measurement results – as well as to offer your customers services that are even more reliable. See all the advantages at a glance:
Other key functions of the 4-way manifold are temperature-compensated leakage testing and automatic ambient pressure compensation.
Manifold with practical App: connect the measuring instrument to your smartphone/tablet!
You can download the appropriate App for the testo 557 digital manifold onto your smartphone or tablet. The App will make your work easier thanks to its wide range of smart functions:
The App can be used with both Android and iOS systems. After installing the App, manifold and smartphone/tablet can be connected to each other via Bluetooth.
A sturdy housing reliably protects the testo 557 digital manifold from impacts (according to protection class IP 42). Thanks to the suspension hook on the back, the instrument is well-secured during the measuring process. The illuminated display ensures optimum legibility of the readings, even if visibility is poor.
Practical kit for work on air conditioning and refrigeration systems, as well as on heat pumps: the testo 557 digital manifold, including set of 4 filling tubes, enables you to get down to work straight away! The testo 557 digital manifold fulfils numerous functions in just one instrument: including superheating/subcooling calculation, vacuum measurement and temperature-compensated leakage test. You can also use a practical App to monitor the manifold via your smartphone/tablet and to store the measurement results or send them by e-mail.
|Measuring range||-50 to +150 °C|
|Probe connection||2 x Plug-in (NTC)|
|Measuring range||-1 to 60 bar|
|Accuracy||±0.5 % of fsv|
|Probe connection||3 x 7/16″ – UNF + 1 x 5/8” – UNF|
|Overload rel. (high pressure)||65 bar|
|Measuring range||0 to 20000 micron|
|Accuracy||± (10 micron + 10 % of mv) (100 to 1000 micron)|
|Resolution||1 micron (0 to 1000 micron)
10 micron (1000 to 2000 micron)
100 micron (2000 to 5000 micron)
500 micron (5000 to 10000 micron)
5000 micron (10000 to 20000 )
|General technical data|
|Dimensions||220 x 125 x 70 mm|
|Operating temperature||-20 to +50 °C|
|Battery life||250 h (without illumination, without Bluetooth®, without vacuum probe)|
|Refrigerants in instrument||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; R438A; R437A; R442A; R444B; R448A; R450A; R449A; R453a; R452A; R454A; R454B; R455A; R454C; R458A; R502; R500; R503; R507; R718 (H₂O); R600a; R513A; R744 (CO₂)|
|System requirements||requires iOS 7.1 or newer; requires Android 4.3 or newer; requires mobile end device with Bluetooth 4.0|
|Refrigerants update via App||R11; FX80; I12A; R1270; R13B1; R14; R142B; R152A; R161; R170; R245fa; R227; R236fa; R401C; R406A; R407B; R407B; R407D; R41; R412A; R413A; R417A; R417B; R417C; R422A; R508B; R426A; R508A; R600; RIS89; SP22|
|Storage temperature||-20 to +60 °C|
|Dimension display||220 x 125 x 70 mm|
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*Demonstrations can only be scheduled within the UAE