JUMO digiLine O-DO S10 Dissolved Oxygen Sensor

Overview

JUMO digiLine O-DO S10 is an intelligent digital optical sensor for measuring dissolved oxygen (DO) in aqueous solutions, engineered to deliver precise, long-term stable measurement in fish breeding, sewage treatment plants, and other water and wastewater technology applications. Using the optical luminescence quenching measuring principle per ASTM D888-05, the JUMO digiLine O-DO S10 eliminates the electrolyte replenishment and frequent calibration burden associated with older electrochemical dissolved oxygen sensors.

As the official authorized partner and exclusive regional representative for JUMO, Seven Star LLC proudly supplies the JUMO digiLine O-DO S10 dissolved oxygen sensor to water and wastewater treatment, aquaculture, and laboratory customers across Oman and the wider GCC. Every unit shipped through Seven Star LLC is genuine JUMO product with full manufacturer warranty and access to local technical support – ensuring facility engineers and procurement teams in Muscat, Sohar, and Salalah receive an authentic, factory-certified JUMO digiLine O-DO S10 backed by regional service.

Working Principle

The JUMO digiLine O-DO S10 measures dissolved oxygen using the optical principle of luminescence quenching: a light source inside the sensor cyclically illuminates a luminophore coating on the sensor cap, exciting it to a higher energy state. As the luminophore returns to its ground state, it emits fluorescent light that is detected by a photodiode; the presence of oxygen molecules collides with and quenches this luminescence, reducing the emitted signal in direct proportion to the surrounding oxygen concentration. Because no oxygen is consumed in this process and no minimum flow rate is required, the measurement remains stable and accurate even at low oxygen concentrations and in stagnant or slow-flowing water.

This optical measuring principle gives the JUMO digiLine O-DO S10 its defining maintenance advantage over electrochemical sensors: there is no anode to decompose and no electrolyte to replenish, and the sensor requires calibration far less frequently. The measured dissolved oxygen value is automatically compensated for temperature via an integrated NTC sensor, and can additionally be compensated for air pressure and salinity using external sensors, ensuring accurate readings across changing environmental conditions.

Engineering Design of the JUMO digiLine O-DO S10

The JUMO digiLine O-DO S10 covers a measuring range of 0 to 20 mg/l (or 0 to 200% saturation), with measuring accuracy of ±1% at 25°C and a fast response time of t90 < 60 seconds. The sensor body is constructed from PVC and PC materials suited to both fresh and salt water applications, with a sensor shaft diameter of 20 mm (30 mm threaded shaft) and an Rp 1″ process connection, and resists exposure to CO2, H2S, SO2, ethylene oxide, and gamma sterilization for demanding process environments.

Two interfaces are available for transmitting the measured value: a bus-compatible JUMO digiLine digital interface with RS485 Modbus RTU protocol, and an analog 4 to 20 mA two-wire current output, giving system integrators flexibility to connect to either digital automation platforms or legacy analog control loops. Configuration, parametrization, and calibration data, including a log book of the last 10 successful calibrations, are stored directly in the sensor’s electronics, and the JUMO DSM (Digital Sensor Management) software allows calibration and testing from a PC via USB. Self-diagnostic functions continuously monitor sensor condition and output warning or error messages upon detecting malfunctions, and the UV-stable sensor cap is easily replaceable when worn.

Key Features

The JUMO digiLine O-DO S10 combines low-maintenance optical sensing with flexible digital and analog connectivity that makes it a leading choice for dissolved oxygen measurement in demanding water applications.

• Optical luminescence quenching measurement per ASTM D888-05 eliminates electrolyte replenishment and reduces calibration frequency.
• Precise measurement even at low oxygen concentrations, with no minimum flow rate required.
• Automatic temperature compensation, plus optional air pressure and salinity compensation via external sensors.
• Dual interfaces (JUMO digiLine RS485 Modbus RTU, and 4-20 mA two-wire analog) support both digital and legacy integration.
• Onboard storage of configuration, calibration data, and a 10-calibration log book supports predictive maintenance.
• Self-diagnostic functions continuously monitor sensor health and flag warnings or errors automatically.
• A PVC/PC sensor body suited to both fresh and salt water, resistant to CO2, H2S, SO2, and sterilization exposure.
• A UV-stable, easily replaceable sensor cap simplifies routine maintenance.

Industrial Applications

The JUMO digiLine O-DO S10 is deployed across municipal and industrial wastewater treatment plants, drinking water monitoring, fish farming (fresh and salt water), aquaponics, and surface water monitoring wherever precise, low-maintenance dissolved oxygen measurement is required. Typical duties include aeration basin oxygen control, aquaculture water quality monitoring, and general water and wastewater technology applications requiring long-term measurement stability.

As the officially authorized partner for JUMO, Seven Star LLC distributes the JUMO digiLine O-DO S10 to water utilities, wastewater treatment facilities, and aquaculture operations throughout Oman and the GCC. The sensor is a strong fit for water and wastewater treatment infrastructure across Muscat, as well as for fish farming and desalination-adjacent water quality monitoring across the Sohar and Salalah regions that require dependable, low-drift dissolved oxygen measurement.

Technical Specifications

The table below summarizes the core specifications of the JUMO digiLine O-DO S10 dissolved oxygen sensor as supplied by Seven Star LLC.

Call To Action

Seven Star LLC supports the full procurement cycle for the JUMO digiLine O-DO S10 dissolved oxygen sensor, from formal RFQ submission to regional warehouse stock availability, technical datasheet delivery, and direct consultation with our instrumentation division on interface selection, cable length, and JUMO digiLine master integration for your application. As the authorized partner for JUMO in Oman and the GCC, we ensure every JUMO digiLine O-DO S10 sensor is delivered with full manufacturer warranty and dependable local technical support. Contact Seven Star LLC today to request a quotation or discuss your dissolved oxygen measurement requirements.