Nortek Signature55 Quick Manual

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The Signature55 and Signature100 operate as long range profilers of 1000m and 400m, respectively. The

Signature55 uses dual frequency, 55kHz and 75kHz, with true broadband technology for both long, coarse

resolution profiles and shorter, fine resolution profiles. The Signature100 has an optional central echosounder

with three frequencies (70, 90 and 120kHz), each available with pulse compression to detect biological activity

in the water column.

This manual is designed to help users of the Signature series product line get familiar with the system. The

short introductory manual gives a system overview and describes how to get the instrument up and running as

quickly as possible.

You will find a more comprehensive Operations Manual that covers functional testing, software information,

and tips for maintenance and troubleshooting within the software (click Help).

For system integrators, there is an Integrator's Guide available on the web site, covering modes of operation,

commands and data format.

System:

The figures on the next page show the Signature55 but can be easily translated to the Signature100. The

sensor head has three/four acoustic transducers slanted at 20 degrees from vertical, plus optional echo

sounder for the Signature100. For dimensions, please refer to the specific instrument data sheet, available for

download from our website. The pressure sensor, temperature sensor and LED light are all visible from the

outside. Note also the beam configuration, with beam one pointing in the positive X-axis (see the engraved axis

definition on the head). The stand alone connectors are 2-pin + 6-pin brass Subconn by MacArtney. Optional 8-

pin + 6-pin if the instrument is ordered with serial communication. Online systems use the more robust Souriau

connector intended for long term use.

Power requirements:

Online: No integrated battery

Stand alone: Double alkaline 1080Wh 18V, or double lithium 3600Wh 19V.

DC input. 15-48V. We recommend using the supplied DC adapter (24V).

Page 1 System: The figures on the next page show the Signature55 but can be easily translated to the Signature100. The sensor head has three/four acoustic transducers slanted at 20 degrees from vertical, plus optional echo sounder for the Signature100. For dimensions, please refer to the specific instrument data sheet, available for download from our website.
Page 2 Figure 1. Signature55 beam and sensor overview Figure 2. Signature55 housing, end cap and connectors overview Nortek AS...
Page 3 Software: The Nortek Deployment software is an important part of the Signature Series and has been designed to aid you in the planning, execution and recovery of your instrument deployment. A thorough description of the software and its features can be found in the Operations manual. We recommend that you update when prompted by the software to ensure that you have all the new functionality accessible.
Page 4 4. Check the internet access status at the notification area in the taskbar of your PC. 5. Open the Nortek Deployment software and click Connect to launch the Discovery feature. This will produce a window with a list of instruments available on the network. It may take a few minutes before the Discovery tool lists a newly connected instrument.

Signature100