5.8.2The relay setpoint may be at any place on the scale. To establish the setpoint proceed as follows:

a)Press CALL to enter the MENU. If the PASSWORD function is enabled, enter the password then press CALL to illuminate the “%sat/ppm” indicator. If the PASSWORD function is not enabled, “%sat/ppm” will illuminate at the first press of CALL.

b)Use the down arrow button to illuminate the PPM LED located to the right side of the display.

c)Press CALL the required number of times until RELAY A SETPOINT is indicated. Now use the arrows to make the display read the desired value. Press ENTER. The display will flash until ENTER is pressed again to confirm entry. A LED above the display indicates when Relay A is activated.

d)Press RUN to place the instrument on line or press CALL for another menu selection.

5.9Relay A Deadband

5.9.1If you have configured the instrument with the DIP switch on the back of the panel for falling D.O. you will wish to have the deadband (sometimes called “hysteresis”) at a higher value than the setpoint. If you have established a setpoint of 3 ppm you may wish the deadband to be between 6 ppm and 3 ppm. Proceed as follows:

a)Enter the menu and press CALL the required number of times to indicate RELAY A DEADBAND. Use the arrow buttons to make the display read the desired value (in this example, 6). Press ENTER. The display will flash until ENTER is pressed again to confirm the entry.

b)In this example, after the instrument has been returned to RUN, the relay will be energized when the D.O. falls to 3 ppm and will remain energized until the reading rises above 6 ppm.

c)When Relay A is activated a LED above the display will be illuminated.

d)Press RUN to place the instrument on line or press CALL for another menu selection.

5.10Relay B Setpoint

5.10.1Relay B Setpoint is configured in the same way as Relay A Setpoint. See Section

5.8.A LED above the display indicates when Relay B is activated.

5.11Relay B Deadband

5.11.1Relay B Deadband is configured in the same way as Relay A Deadband. See Section 5.9.

NOTE: A deadband setting on the wrong side of the setpoint in an invalid entry which will be indicated by the LED flashing when you return to RUN. To correct return to the menu and change the deadband setting or, if the direction of control is the problem, change the position of the relevant DIP switch. See Sections 4.8 and 5.9.

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Omega Engineering Dissolved Oxygen System, DOCN600 manual Relay a Deadband, Relay B Setpoint, Relay B Deadband
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DOCN600, Dissolved Oxygen System specifications

Omega Engineering has set a standard in the field of environmental testing and monitoring with its advanced Dissolved Oxygen System, the DOCN600. This sophisticated device is engineered for precision and reliability, making it a preferred choice for various applications, from wastewater treatment to aquaculture, and laboratory settings. The DOCN600's primary mission is to accurately measure dissolved oxygen levels, a critical parameter in assessing water quality and supporting aquatic life.

One of the standout features of the DOCN600 is its state-of-the-art optical dissolved oxygen sensor technology. Unlike traditional Clark-style electrochemical sensors, which can be subject to interference and require frequent calibration, the optical method uses luminescence to measure oxygen levels. This technology offers several advantages, including lower maintenance requirements, enhanced stability, and improved accuracy over a broad range of conditions.

The DOCN600 boasts a user-friendly interface, complete with a high-resolution LCD display that provides real-time data visualization. Users can access multiple display modes, allowing for quick reference of key metrics, including temperature and oxygen saturation levels. Furthermore, the system is designed with intuitive menus that facilitate easy navigation, ensuring that both seasoned professionals and beginners can operate the device with confidence.

For data management, the DOCN600 is equipped with advanced connectivity options, including USB and RS-232 ports. This allows for seamless integration with external devices and enables users to export data for further analysis. Coupled with its internal memory, which can store extensive historical data, this system empowers users to monitor trends over time, aiding in decision-making processes.

Another notable characteristic of the DOCN600 is its robust build quality, ideal for deployment in various environmental conditions. The system is engineered to be resistant to water, dust, and harsh chemicals, ensuring longevity and reliable performance even in challenging environments. Additionally, with its compact and portable design, it can be conveniently used in field applications as well as in stationary setups.

In summary, the Omega Engineering DOCN600 Dissolved Oxygen System combines cutting-edge optical technology, user-friendly features, advanced connectivity, and a durable design. It stands out as an invaluable tool for anyone needing precise and reliable dissolved oxygen measurements. Whether used in research, environmental monitoring, or industrial applications, the DOCN600 is an excellent investment for achieving accurate water quality assessments.
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