Using a Velocimeter 25
© 2018 Nortek AS
You may supply power with the external supply that is delivered with the systems, or you can use
your own external supply. If using your own supply, make sure the voltage does not exceed the
voltage specification for the instrument.
The power and battery lines are diode protected, so you do not have to worry about wiring the
instrument power backwards - this will not damage your instrument.
Vector power range: DC input 9-15 VDC
If you want to use an internal battery as a backup battery: The instrument will pick the power source
with the highest Voltage. If using an external supply of 15 VDC and an internal battery of 13.5 V, the
external supply provides a higher voltage than the battery pack, which prevents the internal pack
from discharging. Then, if external power fails, the internal battery pack takes over and sustains
operation.
Internal batteries (optional)
The internal battery pack is located inside the pressure case, and enables autonomous (stand-alone)
deployments. It also provides backup power in the event of failure of the external supply. Note that
the battery pack inside the pressure case is disconnected when sent from Nortek.
Nortek alkaline battery packs use 18 AA cell batteries at a nominal starting voltage of 13.5 VDC. The
voltage of alkaline batteries falls quickly at the beginning, slowly during most of its life, then again
quickly at the end. Thus, a 13.5 VDC battery pack will spend most of its life somewhere in a voltage
range of 10.5-12.5 VDC.
Refer to the Changing a battery pack section for instructions on how to connect or change a battery
pack.
The Vector power and/or battery lines are diode protected wiring the Vector power backwards will not
damage your instrument.
Internal Hardware (Electronics Module)
The signal processing hardware generates the signal that is converted to acoustic energy at the
transducers, it digitizes the return signal and runs the Doppler processing that results in velocity
estimates before it is outputted to the recorder or to a PC.
Recorder
The instrument comes standard with a 9MB recorder. There are options for 4 and 16GB recorders.
Additional Fratures
Analog inputs and Synchronizing Vectors
2.1.2 Instrument software
The software is designed to aid in the planning, execution, recovery and exporting data of stand-
alone Vector deployments. It also contains an on-line section, including all functions required to
operate the Vector in real-time applications. The Vector program can be found on the flash disk that
came with the instrument, or on the Nortek web site: www.nortekgroup.com/software. Nortek
Windows programs run on all versions since XP (SP3), including Windows 8.
Software Help: An on-line help system is integrated in the software; containing answers to all
questions you may have on how to use the software. Click Help > Help Topics.
It is emphasized that the Vector program is not primarily designed for rapid data collection at high
sampling rates or for controlling multiple Vectors. For these types of measurements, we instead
recommend using CollectV for Vector.
Installing the Vector PC Software
To Next Page
Loading...
