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Citadel CTD-EK Analog

Teledyne RD Instruments CITADEL CT-EK Sensor provides highaccuracy conductivity and temperature measurements in a package that can be readily adapted to various user platforms. The instrument relies on an innovative, inductively coupled conductivity sensor, which provides high-accuracy, stable readings. The sensor is self-flushing, so no pumps are required. A high-grade Thermistor provides stable temperature readings for calculation of high-accuracy salinity and sound velocity.

Separate models are available with the following options: 
• Shallow- (500-meter) or deep-water (7000-meter) construction 
• Internal or external temperature sensor (faster response) 
• Regular or short stem (shallow versions only)

A large ceramic conductivity cell is also available for improved accuracy and faster response.

?Parameter Large CT Cell Conductivity? Small CT Cell Conductivity? Temperature?
??Sensors ?? ? Range? 0 to 70mS/cm? 0 to 70mS/cm? -2 to +35°C?
Accuracy? ±0.01mS/cm? ±0.02mS/cm? ±0.05°C?
Stability? ±0.02mS/cm/month? ±0.02mS/cm/month? ±0.005°C/month?
?Instrument ? ?Power 50mW @ 6VDCm voltage range 6-14VDC; (2) 0-5VDC control lines
Connector? Molex 8 pin housing with lock, #7478
?Ordering ?? ?? ?? ?? ?? ?? ?? ?? Shallow Long Stem (500dBar) No Housing
Internal Temperature? CT-EK-0-020105-500-0-I
External Temperature? CT-EK-0-020105-500-0-E? ? ?
Shallow Short Stem (500dBar) No Housing
?Internal Temperature CT-EK-0-020106-500-0-I
External Temperature ?CT-EK-0-020106-500-0-E
Shallow Sensor (500dBar) With Housing
Deep Sensor (7000dBar) No Housing
External Temperature CT-EK-0-020104-7000-0-E
?Dimensions Line drawings available on request

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