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