testo 557
www.testo.com
Data sheet
App integration via Bluetooth for fast and convenient
monitoring and reporting on site
Refrigerant update in the instrument via App
4-way valve block for fast and efficient work
External vacuum probe supports evacuation of the system
with highly precise measurement
250 hours‘ battery life
testo 557 – the Bluetooth
manifold for commissioning,
service and maintenance
bar
psi
°C/°F
hPa
The new testo 557 opens up new possibilities for efficient
analysis and documentation – with the Bluetooth App
integration. The wireless connection allows users to read off
the measurement data on a Smartphone or tablet, and to
work more quickly and conveniently. In addition to this, the
user can finalize and send the measurement report directly
on site. The App alows the list of stored refrigerants to be
updated, for example.
The external probe for highly precise vacuum
measurements is also new. The new digital manifold testo
557 is suitable for all measurements on a refrigeration
system or heat pump. The manifold has a robust 4-way
valve block with additional connection possibilities, for
example for a vacuum pump or a refrigerant bottle. This
provides a considerable handling advantage, and enables
fast, safe and efficient work in commissioning, service and
maintenance.
micron
kPa
MPa
inch Hg
Digital manifold
testo 557
Technical data / Accessories
testo 557 set
testo 557 set, digital manifold with
Bluetooth for commissioning, service
and maintenance; incl. 2 x clamp probes,
external vacuum probe, batteries, case and
calibration certificate
Part no. 0563 1557
General technical data
Operating temperature -20 to +50 °C
Storage temperature -20 to +60 °C
Battery life 250 h (without illumination,
without Bluetooth
®
, without vacuum probe)
Dimensions 220 x 125 x 70 mm
Weight 1200 g
Protection class IP42
Refrigerants in the
instrument
60 profiles: R11, R12, R123, R1234yf,
R1234ze, R125, R13B1, R134a, R14, R142B,
R152a, R161, R22, R227, R23, R290, R32,
R401A, R401B, R401C, R402A, R402B,
R404A, R406A, R407A, R407B, R407C,
R407D, R407F, R408A, R409A, R410A,
R411A, R412A, R413A, R414B, R416A,
R417A, R420A, R421A, R421B, R422A,
R422B, R422C, R422D, R424A, R426A,
R427A, R434A, R437A, R438A, R502, R503,
R507, R508A, R508B, R600, R600a,
R744 (CO
2
), R718 (H
2
O), update via App
Sensor types
Pressure Temperature
Measuring range -1 to 60 bar -50 to +150 °C
Accuracy (at 22 °C) ±0.5 % fs ±0.5 °C
Resolution 0.01 bar 0.1 °C
Probe connections 3 x 7/16“ – UNF + 1 x 5/8‘‘ – UNF 2 x plug-in (NTC)
Overload 65 bar –
Vacuum
0 to 20000 micron
1 x plug-in (external vacuum probe)
±(10 micron + 10 % of m.v.)
(100 to 1000 micron)
–
Accessories Part no.
Accessories for measuring instrument
0516 0012Transport case for testo 550 and accessories (also suitable for testo 557)
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 micron)
Compatability requires iOS 7.1 or newer /
Android 4.3 or newer
requires mobile end device with
Bluetooth4.0
0554 5570
Spare valve set; exchange of 2 valve mechanisms with 4 valve knob covers (red, blue, 2 x black),
compatible with testo 549, testo 550, testo 557 and testo 570.