Level control, flow rates

6 independent level measurements

2 open channel flow measurements

2 volume measurements

1 differential level measurement

pumps control (raising) up to 5 immersed pumps

2 analog output 4÷20mA

1 modbus slave output

5 fully confi gurable relay

2 open collector digital output

2 analog input 4÷20mA

2 digital input (max. 24Vdc 10mA)

Datalogger via Pen Drive USB


VLW90M, a single unit suitable for different applications. Level measurements, difference between levels, open channel flow (hydraulic jump)and pumps control.Different measurement functions directly settable via the keyboard. VLW90M can be connected to ultrasonic sensors and/or to 4÷20mA level transmitters. VLW90M has been developed for the connection to 1 or 2 MODBUS sensors, but it can support up to 8 PTU, METER,RPL81 or KTU units if externally powered. A remarkable note is the data logger on removable pen-drive, which enables the total traceability of the measurements. It is particularly suitable for the Analytical of the flow rate timing in open channel applications.

Additional information

Housing material


Mechanical installation

Wall, pipe or DIN rail mountin

Protection degree



5 push buttons


320×240 matrix color backlit LCD

Electrical connection

Internal connectors

Working temperature

-20 ÷ +60°C

Power supply

85÷265Vac; 20÷30Vac/Vdc

Power consumption

Max. 10W

Analog output

n.2 configurable isolated 4÷20mA

Relays output

n.5 fully configurable relay (5A 250Vac)

Digital output

n.2 open collector (max. 24Vdc 50mA)

Analog input

n.2 4÷20mA

Digital input

n.2 (max. 24Vdc 10mA)

Digital communication



on Pen Drive USB; max.32GB (FAT32)

Power supply for analog transmitters

24Vdc; 200mA max

Operating Manual


Data Sheet


Related Product

get in touch

Write Us a Message

office hours

Monday – Friday
08:30 – 12:30
13:30 – 18:00

warehouse hours

Monday – Friday
08:00 – 12:30
13:30 – 17:00