Campbell Scientific CS511-L Product information

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-

In-line thermistor provides automatic temperature
compensation

Compatible with most Campbell Scientific dataloggers

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.

Operating Temperature
Range

0° to 50°C

Measurement Range 0.5 to 50 ppm (for O2)
Accuracy ±2%

Dissolved Oxygen Sensor

CS511-L

Widely
Compatible

Submersible, rugged, low­maintenance DO sensor

PRODUCT

Overview

Benefits and Features

Detailed Description

polarizing galvanic cell that generates a millivoltsignal
proportional to the amount of oxygen present in
themeasured medium (typically water).

Agitator available that keeps the sensor clean and moves
water across membrane for more accurate readings

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

Output 33 mV ± 9 mV (100% saturation);

< 2 mV (0% saturation)

Response Time 5 min from 100% to 0% oxygen

For comprehensive details, visit: www.campbellsci.com.au/cs511-l

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

For comprehensive details, visit: www.campbellsci.com.au/cs511-l

© 2021 Campbell Scientific, Inc. | 02/15/2021