Using a Velocimeter 37
© 2018 Nortek AS
2.2 Vectrino
2.2.1 Technical description
For technical specifications, check out the product on our website.
Probe
The standard and the field probe is made of stainless steel and consists of four receive transducers
and a transmit transducer. It is mounted either on a fixed stem connected to the main housing
through the probe endbell, or on a cable connected to the main housing through the same probe
endbell.
Transducers
Each of the four receive transducers is mounted inside a receiver arm. The transmit transducer is in
the center of the probe.
Electronic Module
The electronic module is located inside the pressure case and consists of a single board with the
power transmitter, analog and digital signal processing, power conditioning and interface circuits.
Temperature sensor
The temperature sensor (thermistor) is located inside the probe head
Power and Communication Cable
The power and communication cable is connected to the endbell connector. The cable supplies
external DC power (12–48 V) and provides two-way serial communication with an external computer.
It also provides four analog outputs (0-5 V DC) for input to an AD converter. The cable also provides
synchronization options when the Vectrino is used as master or slave to synchronize measurements
with other Vectrinos and/or other instruments.
The Vectrino is shipped with a 12-pin cable and waterproof connector. The Vectrino power lines are
diode protected, hence, you do not have to worry about wiring the Vectrino power backwards. If you
do, it will not damage your instrument. The pinout is shown in the Service Manual.
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