CS511-L Dissolved Oxygen Sensor
Widely Compatible
Submersible, rugged, low-maintenance DO sensor
weather applications water applications energy applications gas flux and turbulence applications infrastructure applications soil applications

Overview

The CS511, manufactured by Sensorex, is a submersible, rugged, low-maintenance sensor that senses dissolved oxygen in a medium (typically water). It consists of a self-polarizing galvanic cell that generates a millivolt signal proportional to the amount of oxygen present in the measured medium (typically water).

Read More

Benefits and Features

  • In-line thermistor provides automatic temperature compensation
  • Compatible with most Campbell Scientific dataloggers

The "-L" on a product model indicates that the cable length is specified at the time of order.

Images

Detailed Description

Oxygen diffuses through the CS511’s membrane onto a cathode that produces a chemical reaction. An electrical current is produced by this reaction, which is converted from microamps to millivolts by an in-line resistor. An in-line thermistor provides automatic temperature compensation.

Because the CS511 is shipped dry, DO electrolyte needs to be added before using the sensor. DO electrolyte as well as spare membranes are included in the sensor’s shipping kit.

Currently, the CS511 is Sensorex’s Model DO6400/T. Prior to June 2008, the CS511 was Sensorex’s Model DO6200/T. Programming, wiring, and most specifications are the same for these two sensors. However, they use different accessories and look different. Replacement parts remain available for the older DO6200/T. (See the Ordering Info on the web page.)

For an image of the older DO6200/T, see the retired version of the CS511 manual. Contact Campbell Scientific for more information.

Specifications

Operating Temperature Range 0° to 50°C
Measurement Range 0.5 to 50 ppm (for O2)
Accuracy ±2%
Output 33 mV ± 9 mV (100% saturation); < 2 mV (0% saturation)
Response Time 5 min from 100% to 0% oxygen
Minimum Water Velocity 5 cm s-1 (2 in. s-1) across membrane
Minimum Submersion Depth 6.35 cm (2.5 in.)
Pressure 0 to 100 psig
Temperature Compensation Automatic from 4° to 40°C
Probe Electrolyte NaCl + glycerol (prevents freezing)
Diameter 5.72 cm (2.25 in.)
Height 17.78 cm (7 in.) from bottom of sensor to end of cable strain relief
Shipping Weight 0.8 kg (1.75 lb) including sensor and shipping kit

Compatibility

Note: The following shows notable compatibility information. It is not a comprehensive list of all compatible or incompatible products.

Data Loggers

Product Compatible Note
CR1000 (retired)
CR300 (retired)
CR3000 (retired)
CR310
CR350
CR6
CR800 (retired)
CR850 (retired)

Additional Compatibility Information

DO Electrolyte

Because the CS511 is shipped dry, DO electrolyte needs to be added before using the sensor. DO electrolyte as well as spare membranes are included in the sensor’s shipping kit.


Frequently Asked Questions

Number of FAQs related to CS511-L: 9

Expand AllCollapse All


This Product Replaced

Privacy Policy Update

We've updated our privacy policy.  Learn More

Cookie Consent

Update your cookie preferences.  Update Cookie Preferences