Dedicated Water Quality Data Loggers
Data Logger Configured with Water Quality Sensor(s)


Eureka Manta Multiparameter Water Quality Recorder

Engineered to last for years in the field, the Eureka Manta Multiparameter Water Quality Sonde is ideal for fresh, salt or brackish water monitoring applications. Housed in a tough 3.25" diameter PVC housing, the Manta has 1.5 MB of EEPROM memory and can accommodate water quality sensors for temperature, conductivity, dissolved oxygen, pH, ORP, turbidity & depth/stage. For spot checks, the Manta can be connected to the Amphibian Field Display Unit, or for long term remote monitoring applications, an optional 8 D cell battery pack can be installed.

Every aspect of the Manta is designed for increased reliability and durability. For example, in the field, the recessed (less likely to break off) water quality sensors can be quickly and easily replaced while the internal electronics are protected from exposure to the elements. The separate analog and digital boards isolates the circuitry for more accurate data signals and cuts down on repair costs. And the detachable cablelock system minimizes pins or connector breakage, allowing cables to be easily changed while maintaining a sealed system with fewer components, again reducing maintenance and repair costs. The polyurethane cable assembly is substance-filled to prevent water from traveling in the event of a minor cut. And the clear plastic housing allows the user to see if the double o-ring seals have been breached, while LED's on the circuit board provide diagnostic and operational information.

Eureka's free Windows-based software guides you through setup, calibration and data download processes. The real-time graphing makes it easy for you to visually recognize when your readings have stabilized, and the calibration log provides a regulatory record of instrument calibration history.

Dissolved Oxygen Sensor (Clark Cell) - Changing DO membranes is easy with the snap-on caps which provide uniform stretching for more consistent results and eliminate bubbles and wrinkles. And a built-in magnetic stirrer maintains consistent flow over the D/O sensor.

Dissolved Oxygen Sensor (Optical) - Besides its reliable, field-proven design, Eureka’s new optical dissolved oxygen (ODO) sensor offers several advantages. Because the sensor consumes no oxygen, response is fast and no stirring is needed. The typical lifespan is more than five years, during which time there are no consumable parts, caps, or membranes to replace! And because the sensor is more stable than membrane-covered sensors, calibration frequency is reduced.

PH Sensor - With replaceable reference solution in the flat glass pH sensor, you can top up the solution without the need to replace the entire sensor. The sensor lasts for years and the flat glass pH bulb is easy to clean and difficult to break.

Conductivity Sensor - The open flow design of the conductivity sensor prevents air bubbles from interfering with the reading and allows sediment to fall away from the sensor.

Turbidity Sensor - The innovative design of the McVan Turbidity Sensor provides superior linearity; mathematical algorithms eliminate sand and similar particles from the turbidity calculations, and the built-in wiper keeps the lens clean.

Stage Sensor - The digital stage pressure transducer is designed for long-term deployment. With an accuracy of ±0.005 ft, the sensor is guaranteed to stay within specification for up to one year. Specifications