TESTO 570 - Tips and Assistance; Troubleshooting and FAQs; Measurement Parameter Definitions

8 Tips and assistance
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8 Tips and assistance
8.1. Questions and answers
Question Possible causes / solution
flashes
Batteries are almost empty.
> Change batteries.
The device switches itself
off.
Residual capacity of batteries too low.
> Change batteries.
uuuu lights instead of the
measurement parameter
display
The permissible measuring range has
been fallen short of.
> Keep to the permitted measuring
range.
oooo lights instead of the
measurement parameter
display
The permissible measuring range has
been exceeded.
> Keep to the permitted measuring
range.
8.2. Measurement parameters
Designation Description
∆toh SH Superheating, evaporation pressure
∆tcu SC Subcooling, condensation pressure
to Ev Refrigerant evaporation temperature
tc Co Refrigerant condensation temperature
toh T1 Measured temperature, evaporation
tcu T2 Measured temperature, condensation
T3 T3 Measured temperature
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