Switching The Instrument On - TESTO 570 Instruction Manual

6.1.2.
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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)
Superheating
Subcooling
Differential temperature
Current measurement
Charging/emptying
Oil lubrication of the
compressor

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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Position
At the end of the evaporator / inlet of
compressor
At the end of the condenser / inlet of
expansion valve
On the measurement object
On the electrical consumers
On the system
On compressor oil measurement
fitting
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6 Using the product
17
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