TESTO 570 Series User Manual

7 Using the product
21
• 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.
7.2.2 Evacuation
Via the Evacuation application, foreign gases and moisture can be removed
from the refrigeration circuit.
The testo 552i is recommended for carrying out the measurement. The
measurement is also possible without the testo 552i, with testo 570s.
However, this is not advisable due to insufficient accuracy.
✓
The instrument is switched on and the measurement menu is
displayed.
✓
Bluetooth
®
is enabled.
✓
Hoses are connected.
1
Press [Menu/Enter].
2
Press [▲] / [▼] to select Measuring
Mode and press [Menu/Enter] to
confirm.

TESTO 570 Series Specifications

General

Temperature Accuracy	±0.5 °C
Temperature Measurement Range	150°C
Vacuum Measurement	Yes
Data Logging	Yes
Display	LCD
Interfaces	Bluetooth, USB
Storage Temperature	-20 to +60 °C
Operating Temperature	-10 to 50°C