SiS Sensoren Instrumente Systeme GmbH

CTD plus 100, 500 and 1000

CTD plus 500 With Mounting Cage Photo The CTD plus 100, 500, and 1000 are a family of CTD "hang alone" systems for use in water depths of 100, 500 and 1000 meters respectively.

The features are:

High resolution and accuracy
New sensor concept, conductivity and temperature in the same sample volume
Autonomous battery powered system
LC display
User programmable by cursor keybuttons
Internal calculation of salinity, density and sound speed according to UNESCO tables and standards
Autocalibration functions for simple recalibration of sensors
Time series sampling for moorings
Spatial series sampling for profiling
Light weight, small size, easy handling
Serial RS 232 interface

For simple use they are activated by three cursor keybuttons to take samples and store them in solid state CMOS RAM, to read out samples on display, to continuously sample, calculate and display parameters.

For field analysis and processing the SiS fieldsoft program for MS-DOS is included.

Specification

Parameter	Range	Resolution	Accuracy	Stability	Response time
Conductivity	1 - 65 mS/cm	1 mS/cm	10 mS/cm	2 mS/cm per month	20 ms
Temperature	-2 - +40 °C	0.001 °C	0.005 °C	0.005 °C per month	20 ms
Pressure	0-100 dbar 0-500 dbar 0-999 dbar	0.01 dbar	0.05 % full-scale	0.01 % per month	10 ms
Salinity	2 - 42	0.001	0.019	0.004 per month	-
Density	0 - 65 kgm^-3	0.001 kgm^-3	0.016 kgm^-3	0.003 kgm^-3 per month	-
Sound Speed	1392 - 1724 ms^-1	0.1 ms^-1	0.02 ms^-1	0.004 ms^-1 per month	-
Sampling rate	Spatial mode user selectable from 0.1 dbar Time mode user selectable from one minute to 9 hours, 59 minutes Real time data acquisition 3 ms for a complete CTP cycle of 17 bit resolution
Memory	CMOS solid state with 1000 data sets. Upgrade as option
Power supply	2 D cells: 10 hours continuous operation (with Alkaline cells) up to 40 days time sampling (with Alkaline cells) External supply 1.4 to 7.5 V, 1.5 W
Outer dimensions	522 mm (pressure case), 181 mm (battery module), 70 mm diameter
Weight	4.5 kg in air with battery module and batteries.

Available options

Mounting cage
Stowage case for CTD without mounting cage
Stowage case for CTD with mounting cage

Additional Information

SiS GmbH reserves the right to change specifications without prior notice.