Installation Of Sensors (D, E, F) - FPZ MS Serie Manual De Instrucciones

•
do not install valves with passages smaller than the nominal value and check valves with a stopper pushed by a spring (the
check valve with the lowest load loss is the type with a light disc)
•
clean the ducts thoroughly before connection.
The entry of foreign bodies into the unit, even if very small, causes serious damage with probable breakage of the impeller
blades and the danger of debris being thrown out of the machine violently!
See the INSTALLATION DIAGRAMS at the beginning of this manual.
10.1.1

INSTALLATION OF SENSORS (D, E, F)

Install the machine on the plant. Fit the sensors, suitable for the purpose and especially for the Atex environment in question, in their
places and connect them to the control system as specified in the instructions provided with the sensors and as required in the plant
diagram:
Foro filettato G 1/8" per connessione
PRESSOSTATO (mandata),
VUOTOSTATO (aspirazione)
Threaded hole G 1/8" for
the connection of a
PRESSURE SWITCH (outlet) ,
VACUUM SWITCH (suction)
Foro filettato M8x1,25 per
connessione VIBROMETRO
(lato aspirazione)
Threaded hole M8x1.25
for the connection of a
VIBROMETER (suction side)
D) Vibration sensor
The signal from the sensor must monitor the vibrations of the machine constantly. This signal must be connected to an alarm and block
device with manual reset, which automatically interrupts the power supply to the compressor/suction pump at the instant the value of the
vibration signal exceeds the predetermined limits.
Effective vibration speed value [mm/s]
a<2.2
E) Pressure switch and vacuum switch
The pressure or vacuum switch installed must be calibrated to the maximum pressure or vacuum value specified on the plate of the
machine or in accordance with the operating limits of the plant.
The signal must be connected to an alarm and block device, with manual reset, that automatically interrupts the power supply to the
machine.
F) Thermostat
The thermostat must be set to come into action at a temperature not exceeding 125°C to interrupt the power supply to the machine
automatically.
The signal must be connected to an alarm and block device, with manual reset, that automatically interrupts the power supply to the
machine.
All sensors installed must be protected against impact and damage. FPZ can supply a protective casing, on request and after
receiving the dimensions of the sensors installed.
ENERGOEKONOM spol. s r.o., Wolkerova 433, CZ-250 82 Úvaly, Czech Republic, Tel.: +420 281 981 055, [email protected], www.energoekonom.cz
Danger due to entry of foreign bodies and dirt into the unit!
Class I
(≤ 15kW)
A
Effective vibration speed value [mm/s]
a<3.5
34 / 96
Foro filettato G 1/2"
per connessione
TERMOSTATO (lato mandata)
Threaded hole G 1/2"
for the connection of a
THERMOSTAT (outlet side)
Su richiesta sensore PT100
per rilievo temperatura cuscinetto
At the request sensor type
PT100 for relief bearing
temperature
Class II
(> 15kW)
A