6
Product description
10
6.2
Overview of the testo 557s
1
Mini-DIN probe socket for NTC
temperature probe, with socket
cover
2
Foldable suspension device
(rear).
3
Display. Instrument status icons
4
Rear
•
Battery compartment
•
Mini USB port for firmware
update
It is not possible to charge
rechargeable batteries in the
instrument.
5
Control keys
6
Sight glass for refrigerant flow
7
4 x valve positioner
8
4 x hose bracket for refrigerant
hoses
9
Connection 7/16" UNF, brass.
High pressure, for refrigerant
hoses with quick-release screw
fitting, passage can be closed via
valve positioner.
10
Connection 5/8" UNF, brass, for
vacuum pump
11
Connection 7/16" UNF, brass,
e.g. for refrigerant cylinders, with
sealing cap
12
Connection 7/16" UNF, brass.
Low pressure, for refrigerant
hoses with quick-release screw
fitting, passage can be closed via
valve positioner.
www.
.com
1.800.561.8187
