TESTO 550s - Compressor Test (DLT)

8 Using the product
18
8
Pressurize the measuring instrument.
-
The measurement starts
automatically.
-
Measurement results are displayed:
• Low/high pressure
• Condensation and evaporation temperature
• Suction and liquid line temperature
• Superheating and subcooling
With zeotropic refrigerants, the evaporation temperature to/Ev is
displayed after complete evaporation/the condensation temperature
tc/Co is displayed after complete condensation.
The measured temperature must be assigned to the superheating or
subcooling side (t
oh
<--> t
cu
). Dependent on this assignment, the display
will show t
oh
/T1 resp. Δt
oh
/SH or t
cu
/T2 resp. Δt
cu
/SC, depending on the
selected display.
Reading and display illumination flash:
• 1 bar/14.5 psi before reaching critical refrigerant pressure
• When max. permissible pressure of 60 bar/870 psi is exceeded.
All values can be saved and sent in the app. The data can also be
transferred between the app and the testo DataControl software.