VITO FT 440, Руководство пользователя

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05_2018
15
Proceed as follows for determining the
oil quality:
Immerse the probe within the marked
area
• Keep the probe at least 2 cm /
1 inch away from the external wall
of the vessel
• Stir with the sensor until the mea -
sured temperature deviates less
than ±5 °C / °F from the actual oil
temperature. Then hold the measu -
ring unit still in the oil.
As long as the measurement signal is
not stable, the %TPC display is flas -
hing. It is shown continuously as soon
as the signal is stable. A stable mea -
suring result is indicated by a blinking
signal lamp.
The display shows the polar compo -
nents (PC) and the oil temperature as
measurement results.
0 % to 18.5 %:
Oil new and/or unused (signal lamp
flashes green).
19 % to 24 %:
Oil in the critical range (signal lamp
flashes yellow). It is recommended that
the oil is changed or partially improved.
Higher than 24 %:
Waste oil. The selected threshold (24 %
by the factory) is exceeded (signal lamp
flashes red). The oil must be changed.
Press the ON/OFF button longer than 3
seconds to turn the device off.
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