EKOM DK50 4x4VRT/M, Руководство пользователя

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PRODUCT MAINTENANCE
03/2021 57 NP-DK50-Nx4VRTM-AD-A-EN-4_03-2021
Air tank:
Check for proper operation of the non-return valve on the air tank by disconnecting the pressure
hose from the valve.
Check the check valve operation once the air tank has come up to pressure and
with the compressor off. No compressed air may leak.
17.11. Check of solenoid valve operation
Check their operation using the
“Magnetic indicator” fixture as follows:

Attach the fixture to the valve coil and if the
motors are active at the valve coil, the
indicator must rotate and if they are out of
inactive, the indicator must not rotate.
Fig. 28: Check of solenoid valve operation
17.12. Check of temperature sensor switching
Checking the functionality of temperature sensor B3 (external) and B4 (internal).
The B4 sensor is only used on covered models.

This check is conducted using
the LOGO! TDE display where
the instantaneous temperature
values are shown on the starting
screen in STOP mode.

The check is based on a slight
change in temperature around
the sensor, i.e. caused by
heating, or the temperature
shown on the display must also
change. The B4 sensor is not
connected
on uncovered
versions and the display shows
N/A.
Fig. 29: Check of temperature switch switching
17.13. Check the function of the pressure sensor
This check is performed visually using the TDE screen, which shows the compressed air value. The
pressure level shown on the display must change with changes in air demand.
17.14. Cleaning and disinfection of the exterior surfaces of the product
Clean and disinfect the exterior surfaces with neutral cleaning products.