CTD Probes Overview

Basic equipment CTD 48 CTD 60 CTD 90
Maximum of bottom sensors 4 5 9
Maximum of external sensors - 1 2
Memory - - -
FSK telemetry output (interface required) - x x
Data output RS-232 RS-232 RS-232
Available sensors for:      
Pressure x x x
Temperatur (Pt100) combined CT sensor x x
Conductivity (7-pole quarz-cell) combined CT sensor x x
Dissolved oxygen (OxyGuard) - x x
Fast response dissolved oxygen sensor x x x
pH (for 160 or 500m water depth) only pH or Redox x x
pH H2S resistent (for 1200m water depth) only pH or Redox x x
Redox (for 160 or 500m water depth) x x x
Redox H2S resistent (for 1200m water depth) x x x
Turbidity (Seapoint) 1 range 4 ranges 4 ranges
2-axis electro-magnetic current meter - x x
Transmissionmeter as external device - x x
Chlorophyll a fluorometer - x x
Rhodamine B fluorometer - x x
Li-Cor 192 SA (cosine underwater sensor) - x x
Li-Cor 193 SA (cosine surface sensor) - x x
Compass - x x
Bottom indicator with pre-running weight - x x
Altimeter - x x
Adaption of water sampler - x x
NTC temperature - - -
Shear - - -
Acceleration - - -
Surface detection - - -
X & Y inclination - x x
Calculated sensors:      
Sound velocity (from P,T,C) x x x
Salinity (from P,T,C) x x x
Density (from P,T,C) x x x
Cappa 25 (from T,C) x x x
Dissolved oxygene mg/l x x x
Dissolved oxygene ml/l x x x