PRÜFTECHNIK Condition Monitoring GmbH VCRFSU Manual Do Utilizador
21
VIBCONNECT RF 11.2011
Sensor unit with two
sensors, for vibration
and temperature measu-
rement respectively.
sensors, for vibration
and temperature measu-
rement respectively.
System description
*xxx = 50, 60, 100, 120
(frequency range in Hz)
(frequency range in Hz)
4.2 VIBCONNECT RF sensor unit
The sensor unit is the transmitter and receiver unit attached to the
machine. Each sensor unit comes with one or two connected sensors
for the simultaneous measurement of vibration and temperature. By
separating the sensors from the radio unit, it is possible to position
the components in the most suitable locations on the machine. For
sensors, these are the points with the highest signal level. For the sen-
sor unit (transmitter / receiver), it is the point of best radio reception.
The sensor unit receives the measuring tasks from the bridge and
performs them by means of the connected sensors. For vibration
measurements, only the related time signal is recorded (see also
“Detailed description of function”, page 19). For each measuring
point, up to four vibration measurements and one temperature
measurement can be configured.
The sensor unit can be powered from three different sources:
• Battery
• 24 VDC
• Energy harvester
machine. Each sensor unit comes with one or two connected sensors
for the simultaneous measurement of vibration and temperature. By
separating the sensors from the radio unit, it is possible to position
the components in the most suitable locations on the machine. For
sensors, these are the points with the highest signal level. For the sen-
sor unit (transmitter / receiver), it is the point of best radio reception.
The sensor unit receives the measuring tasks from the bridge and
performs them by means of the connected sensors. For vibration
measurements, only the related time signal is recorded (see also
“Detailed description of function”, page 19). For each measuring
point, up to four vibration measurements and one temperature
measurement can be configured.
The sensor unit can be powered from three different sources:
• Battery
• 24 VDC
• Energy harvester
Battery
The VIB 7.200-FBU / VIB 7.200-NBU
sensor units are powered by two
lithium batteries. The battery charge
level is automatically signalled to the
bridge at each measurement trans-
fer and displayed in OMNITREND.
If a battery needs to be changed, a warning is displayed when the
software is started.
The batteries are not included in the scope of delivery and must be
purchased separately.
Battery type: 3.6 V lithium, size C (e.g.. Tadrian, type: SL-2770)
sensor units are powered by two
lithium batteries. The battery charge
level is automatically signalled to the
bridge at each measurement trans-
fer and displayed in OMNITREND.
If a battery needs to be changed, a warning is displayed when the
software is started.
The batteries are not included in the scope of delivery and must be
purchased separately.
Battery type: 3.6 V lithium, size C (e.g.. Tadrian, type: SL-2770)
24 VDC
For VIB 7.200-FVU / VIB 7.200-NVU sensor units, the system opera-
tor must provide a 24 VDC power connection at the location of
installation.
tor must provide a 24 VDC power connection at the location of
installation.
Energy harvester
For VIB 7.200-FHU / VIB 7.200-NHU sensor units, the operator
must install an energy harvester (VIB 7.210-xxx*) that converts the
vibration energy of the machine into electric power. This can only
be done, if the machine speed is constant and within the useful
frequency range of the energy harvester.
must install an energy harvester (VIB 7.210-xxx*) that converts the
vibration energy of the machine into electric power. This can only
be done, if the machine speed is constant and within the useful
frequency range of the energy harvester.