Sea & Sun Technology - Model CTD 75M -Medium Sized Microprocessor Controlled Multi-Parameter Probe

Data are stored in a standard flash memory card with a capacity limited to 128 Mbytes by the internal firmware. Up to 3 000 000 CTD data sets can be recorded on this memory. The actual number depends on the selected storage options and the number of sensors adapted to the probe.

The CTD75M allows operation in different modes:

• Continuous mode: each data set is stored.
• Time mode: data sets are only stored at programmable intervals with several selectable schemes.
• Increment mode: data sets are stored at programmable depth increments, up to 255 files can be stored without the need for data retrieval in between.
• Online mode (RS-232).

The CTD75M is equipped with a 4 channel data acquisition system with 16 bit resolution. A high long-term stability and automatic self-calibration of the analogue digital converter guarantees stable and precise CTD measurements for many years.
The supplied Standard Data Acquisition Software package “SST-SDA” includes the handling of the logging process and the display of online or recorded data with a shared graphic user interface. The “SST-SDA” is a part of our shipment.

The probe power supply is activated by touching a reed contact with a magnetic rod, LED displays power supply status and optical control of memory access.

Standard models:

CTD75M:
Online and memory probe for measurement of conductivity, pressure, temperature + 4 optional sensors

Standard sensors:

• Conductivity (C)
• Temperature (T)
• Pressure (D)

Additional sensors:

• Oxygen
• Turbidity
• pH
• Redox (OPR)
• Fluorometer
• Light irradiance
• Transmissiometer

Calculated parameters:

• salinity
• sound velocity
• Kappa 25 mS/cm
• sigma

Main Features:

• low weight
• easy handling
• up to 8 sensors on the bottom cap
• non-corrosive titanium housing (titanium)
• depth range up to 1000 m
• SDA data acquisition software running under various versions of Microsoft Windows (a part of the shipment)
• calculations according to UNESCO formulas

Data are stored in a standard flash memory card with a capacity limited to 128 Mbytes by the internal firmware. Up to 3 000 000 CTD data sets can be recorded on this memory. The actual number depends on the selected storage options and the number of sensors adapted to the probe.

The CTD75M allows operation in different modes:

• Continuous mode: each data set is stored.
• Time mode: data sets are only stored at programmable intervals with several selectable schemes.
• Increment mode: data sets are stored at programmable depth increments, up to 255 files can be stored without the need for data retrieval in between.
• Online mode (RS-232).

The CTD75M is equipped with a 4 channel data acquisition system with 16 bit resolution. A high long-term stability and automatic self-calibration of the analogue digital converter guarantees stable and precise CTD measurements for many years.
The supplied Standard Data Acquisition Software package “SST-SDA” includes the handling of the logging process and the display of online or recorded data with a shared graphic user interface. The “SST-SDA” is a part of our shipment.

The probe power supply is activated by touching a reed contact with a magnetic rod, LED displays power supply status and optical control of memory access.

Standard models:
CTD75M:
Online and memory probe for measurement of conductivity, pressure, temperature + 4 optional sensors

Standard sensors:

• Conductivity (?)
• Temperature (T)
• Pressure (D)

Additional sensors:

• Oxygen
• Turbidity
• pH
• Redox (OPR)
• Fluorometer
• Light irradiance
• Transmissiometer

Calculated parameters:

• salinity
• sound velocity
• Kappa 25 mS/cm
• sigma

Main Features:

• low weight
• easy handling
• up to 8 sensors on the bottom cap
• non-corrosive titanium housing (titanium)
• depth range up to 1000 m
• SDA data acquisition software running under various versions of Microsoft Windows
  (a part of the shipment)
• calculations according to UNESCO formulas