Samoa NEXU - Unet

Rev 3 (XXXX 2019)
NexU INSTALLATION MANUAL
27
order of the probes changes depending on whether it is a fresh fluid tank (Stop probe/S3 will
be at the bottom of the tank) or a waste fluid tank (Stop probe/S3 will be at the top of the
tank).
The volume of fluid inside the tank is displayed in real time above each tank, expressed in
the units of the system (L for litres, G for gallons). If the tank is using analogue probes, this
quantity is the exact volume measured by the unit; if the tank is using digital probes, this
quantity is the volume estimated by the U-Track.
Below each tank, the tank number inside the system is displayed (1 to 52), along with the
status of the pump control output:
READY: pump is depressurized and ready for delivering fluid.
RUNNING: pump is pressurized and delivering fluid to one or more dispensing points.
STOP: pump is depressurized and is locked from delivering fluid because either the tank is
empty (fresh fluid tank) or the tank is full (waste fluid tank).
Also, the fluid level is displayed graphically inside the tank, and through the associated LED
graph bar, and will change accordingly with the measured level.
Note that the lighting colour of the graph bar segments will change depending on the status
of the tank: if the tank is in "normal" status, the lighting colour will be green; if the tank is
beyond "warning" level, the lighting colour will be yellow; and if the tank is beyond "stop"
level, the lighting colour will be red.
3.2.10 UNET
Rear View
1.- Ethernet terminal. To be connected to
the customer computer network or Samoa
Wi-Fi router
2 / 3.- USB ports (4 units). Only for
service.
3.- CAN Bus connections.
4.- End of Line switch.
Side View
1.- Power input. This is a 5 VDC input but
the UNet has got a transformer to convert
mains power (110 VAC or 240 VAC) to 5
VDC
2.- HDMI connector. Only for service.
3.- Micr0 USB connector. Only for service.