6 Product description
9
6
Product description
6.1
Overview of the testo 550s
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
2 x valve positioner
8
3 x hose bracket for refrigerant
hoses
9
3 x connections 7/16" UNF, brass
Left/right: Low/high pressure for
refrigerant hoses with quick
release screw fitting; passage
can be closed via valve
positioner center: e.g. for
refrigerant bottles, with sealing
cap, refrigerant hoses with quick-
release screw fitting; passage
can be closed via valve
positioner.
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1.800.561.8187
