TESTO 570 - Switching On and Sensor Zeroing

6 Using the product
17
Accessories
Clamp probe and oil pressure probe can only plugged to
connection (1).
Position the accessory as appropriate for the measurement task:
Measurement task
(measurement channel)
Position
Superheating
At the end of the evaporator / inlet of
compressor
Subcooling
At the end of the condenser / inlet of
expansion valve
Differential temperature On the measurement object
Current measurement On the electrical consumers
Charging/emptying On the system
Oil lubrication of the
compressor
On compressor oil measurement
fitting
6.1.2. Switching the instrument on
> Press [].
Zeroing the pressure sensors
Zero the pressure sensors before every measurement.
✓ All connections must be pressureless (ambient pressure).
> Press [P=0] to execute zeroing.
Connecting the refrigerant hoses
Before each measurement check whether the refrigerant
hoses are in flawless condition.
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