Dr. Fahrentholz

Hydrographic Echo Sounders

LTB Screenshot

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Products


the 'Litu' family

LituBox image LituSystem image LituGraph image

LituBox LituSystem LituGraph
survey echo sounder with graphical display
supported supported
graphical software for an external computer supported

real-time display supported supported supported
sound frequencies 15, 30, 100, 200, 350, 700 kHz supported supported supported
simultaneously working multifrequency sounding supported supported supported
ranges 0-16 m, 0-32 m, 0-64 m, 0-128 m supported supported supported
ranges up to 1280 m

supported
resolution ~1 cm supported supported supported
continously variable sound velocity, transducer depth, frequency offsets supported supported supported
raw data storage supported supported supported
main voltage 12/24 Vdc 12/24 Vdc 24 Vdc
dimensions portable portable 19"/4HE & 19"/9HE
data-output (NMEA & FZ) RS-232c, TCP/IP & UDP RS-232c, TCP/IP & UDP RS-232c, TCP/IP & UDP
data-input (NMEA) RS-232c
GPS, water level, annotations
RS-232c
GPS, water level, annotations
RS-232c
GPS, water level, annotations

Specifications

download as pdf  LituBoxLituSystemLituGraph

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BlackBox Echo Sounder

BBES image BBES-LCD image

BBES BBES-LCD
digital hydrographic echo sounder supported supported
sound frequencies 15, 30, 100, 200, 350, 700 kHz supported supported
simultaneously working multifrequency sounding supported supported
separate working transducers possible supported supported
selectable update rate 10, 20 Hz 10, 20 Hz
ranges up to 100 m supported supported
resolution ~1 cm supported supported
adjustable sound velocity & transducer depth fixed: 1500 m/s, 0 cm supported
LCD-display supported
main voltage 12/24 Vdc 12/24 Vdc
data-output (NMEA) RS-232c RS-232c
dimensions small, light, portable small, light, portable

Specifications

download as pdf  BBESBBES with LCD

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HydroGraph – the new HVK

HydroGraph image

HydroGraph
analogue & digital hydrographic echo sounder supported
control software for an external computer supported
sound frequencies 15, 30, 100, 200, 350, 700 kHz supported
simultaneously working multifrequency sounding supported
separate working transducers possible supported
selectable update rate 5, 10, 20 Hz
ranges up to 100 m supported
resolution ~1 cm supported
adjustable sound velocity & transducer depth per software
main voltage 12/24 Vdc
digital data-output (NMEA & FZ) RS-232c
analogue data-output supported
dimensions small, light, portable

Specifications

download as pdf  HydroGraph

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UltraGraph – UltraGraph image UltraGraph screenshot
the graphical Echo Sounder
for Shallow Water

UltraGraph
graphical shallow water echo sounder supported
display type TFT - Display
ranges 0 - 100 m
sound frequencies 100, 200 kHz
minimal water depth with two transducers 10 cm
sound velocity fixed: 1500 m/s
transducer depth adjustable
main voltage 24 Vdc
digital data-output NMEA, RS-232c
internal raw data storage with positon and time supported
replay of saved data possible supported

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UltraSkop UKN – UKN image
the Shallow Water Echo Sounder

UKN
display type LED - Bargraph
ranges 0 - 2,5 m, 0 - 5 m, 0 - 10 m, 0 - 25 m, 0 - 50 m, 0 - 100 m
sound frequencies 100, 200 kHz
minimal water depth with two transducers 10 cm
sound velocity & transducer depth fixed: 1500 m/s, 0 m
main voltage 24 Vdc
digital data-output optional: NMEA, RS-232c
additional digital data display supported (optional)

Specifications

download as pdf  UKN

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Screenshots

LituPlot-Zoom
zoomed bottom


4 frequencies
echo sounder working with 4 frequencies


sediments
sediments discovered with 2 frequencies


night modus
night modus


wake
wake


wreck
wreck


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Transducer

single frequency transducer portable hull mounted
15 kHz supported supported
30 kHz supported supported
100 kHz supported supported
200 kHz supported supported
350 kHz supported supported
700 kHz supported supported
combi–transducer

15/100 kHz supported
15/200 kHz supported
30/200 kHz supported

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Equipment can be leased

It is also possible, to lease the echo sounders. In this case they will be adapted to the requirements and projects of the leaser.

This will be executed in our own water basin, in which generally all our transducers and echo sounders are evaluated, tested and calibrated before delivery.

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Tank for Tests & Development

Can be rented for your own project

tank
19 x 4 x 2.5 m

The basin has a horizontal size of 19 m by 4 m and a depth of 2.5 m. At the bottom of the basin several different objects, such as stones, anchors, several containers filled with different materials, have been deposited for acoustic experiments. On a movable bridge, that can be pushed over the full length of the basin, measuring equipment can be positioned. A small crane can support experiments with heavy equipment of any kind. It is possible to walk completely around the basin which is situated in a heated building.

All our transducers and echo sounders are evaluated, tested and calibrated in this basin before delivery.

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Download


catalogue

complete catalogue

leaflets

LituBox
LituSystem
LituGraph
BBES
BBES with LCD
HydroGraph
UKN

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Contact us


You can contact us by

email

phone


postal

info@fahrentholz.de

++49 431 542049
mo – fr:   8.00 a.m. – 4.00 p.m.

Dr. Fahrentholz GmbH & Co. KG
Grasweg 4-6
24118 Kiel
Germany

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Impressum

Information according to §5 TMG:
company: Dr. Fahrentholz GmbH & Co. KG
Grasweg 4-6  •  24118 Kiel  •  Germany
phone:   ++49 431 542049
info@fahrentholz.de  •  www.fahrentholz.de
authorized to represent: Dr. Julia Fahrentholz-Starrost
register court: county court Kiel: HA #3776
tax number: tax office Kiel: 20/282/70358
VAT-ID (UStG §27a): DE 812 388 842
general partner: Dr. Fahrentholz Verwaltungs GmbH
register court: county court Kiel: HB #4608
EAR: Fahrentholz-Sounder: WEEE-Reg #DE43104036
in form and content responsible (TMG): see authorized to represent


Limitation of liability (disclaimer)

Limitation of liability for internal content
The content of our website has been compiled with meticulous care and to the best of our knowledge. However, we cannot assume any liability for the up-to-dateness, completeness or accuracy of any of the pages.
Pursuant to section 7, para. 1 of the TMG (Telemediengesetz – Tele Media Act by German law), we as service providers are liable for our own content on these pages in accordance with general laws. However, pursuant to sections 8 to 10 of the TMG, we as service providers are not under obligation to monitor external information provided or stored on our website. Once we have become aware of a specific infringement of the law, we will immediately remove the content in question. Any liability concerning this matter can only be assumed from the point in time at which the infringement becomes known to us.

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