e)Now proceed to turn each of the other S43 switches On with the remaining switches Off.

The display should read within 5% of 25°C with Switch 2 On and 35°C with Switch 3 On.

If this is the case the analyzer is in order and the problem is in the sensor. Otherwise the problem is in the analyzer.

f)Return S40 and S41 to “On line” and ensure that all S43 switches are Off.

9.2Escape

9.2.1If the instrument appears to be "DEAD", for example not responding to the buttons, or not performing on line measurement and control, always try the reset feature first, as described in 6.3.1.

9.2.2a) The "ESCAPE" procedure is to be used normally at the factory only, when the unit is powered with a new MCU. As a result, the internal non-volatile memory (EEPROM) is "FORMATTED" and the factory values are loaded into it.

b)The "ESCAPE" procedure is to be used if a unit is serviced for a new MCU insertion, in case where the MCU was not calibrated at OMEGA, or in case of a memory loss problem, when so advised by OMEGA service support.

9.2.3Before performing the "ESCAPE" procedure it is important to know that this procedure provides the option to erase all programmed values and replace them with the factory set default values. This is also true for the control setpoints and deadbands, then alarm settings and the analog outputs scaling. Also, the temperature and the D.O. calibration points will be set to their initial values. This means, that the temperature and the D.O. calibration must be performed after an “ESCAPE” procedure. After that, all the control, alarm and scaling parameters mentioned above must be set to the user values.

9.2.4To perform the ""ESCAPE"" proceed as follows.

a)Turn off the power.

b)Press and hold the RUN button for about 3 seconds, while turning on the power.

The FAIL LED will turn on and STATUS LED will become red and status code 7 will be obtained to show that the ESCAPE procedure was just performed.

9.2.5After the "ESCAPE" procedure it is necessary to do the following:

a)Tune the analog outputs and the temperature output span to suit your particular application and loop. See Sections 7.3, 7.4, and 7.5.

b)Calibrate the system, as described in Section 5.3.

c)Set up the user values for:

•Output High and Low - See Section 5.4.

•Control Relay - See Sections 5.8 and 5.9.

•Alarm Relay - See Sections 5.12 and 5.13.

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Omega Engineering Dissolved Oxygen System, DOCN600 manual Escape
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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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