Products Catalog

Specification

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

Eureka Manta2 Multiparameter Water Quality Recorder

Engineered to last for years in the field, the Eureka Manta2 Multiparameter Water Quality Sonde is ideal for fresh, salt or brackish water monitoring applications. The Manta2 Sonde has 1.5 MB of EEPROM memory and is available with a variety of housing diameters from less than 2� to 4� depending on the combination of sensors required for your application. For long term remote monitoring applications, an optional internal 8 C cell alkaline battery pack can be installed in the 3� sondes, or a convenient interchangeable AA alkaline external battery pack can be added to any of the 2� sondes. For spot checks, the Manta can be connected to the rugged Amphibian Pocket PC Field Display Unit that has a rechargeable battery pack to power the Manta Sonde, and includes Compact Flash II & Secure Digital slots for virtually unlimited data storage.

Every aspect of the Manta2 is designed for increased reliability and durability. The innovative Manta2 platform takes the intelligence of the instrument off of the main electronics package and moves it to the individual sensors. This allows for quick diagnostics if a sensor gets damaged, lowers the overall cost of the sonde, and allows for quick adaptation to new sensor technologies. Other features of the Manta2 include a single interface board that allows each sensor to communicate independently which lowers costs and simplifies troubleshooting time. Recessed sensors that are less likely to get damaged and require less calibration solution. A detachable cable lock system that minimizes pins and connector breakage, allowing cables to be easily exchanged 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 logging status, diagnostic and operational information.

Eureka' s free Manta2 Manager Windows-based software guides you through setup, calibration and data download processes while connected, and powered, by any PC USB port. 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. The Manta2 Manager software is designed so that the hand held Amphibian version “ mirrors� the PC version - once you have learned one you will be familiar with both.

Current available sensor parameters include:

Temperature Chlorophyll a
Conductivity/ Salinity/ TDS Blue-Green Algae Fresh
Polargraphic Dissolved Oxygen
Blue-Green Algae marine
Optical Dissolved Oxygen Rhodamine
pH with pH Reference Total Dissolved Gas
ORP Ammonium
Turbidity Nitrate
Depth
Chloride
Stage Sodium

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. Uniquely designed for easy maintenance with no cell blocks to remove or clean.

Dissolved Oxygen Sensor ( Polargraphic) - Changing DO membranes is easy with the snap-on caps which provide uniform stretching for more consistent results and eliminate bubbles and wrinkles. 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 to ten 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 glass pH sensor, you can top off the reference solution without the need to replace the entire sensor. The sensor lasts for years and the glass pH bulb is easy to clean and difficult to break.

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.

Optical Sensors - Chlorophyll a, Blue-Green Algae, Rhodamine - Self-cleaning optical sensors with integrated wipers remove biofouling and maintain high data accuracy and improved reliability during extended deployments.

Ion Specific Sensors - Ammonium, Nitrate, Chloride, Sodium - An inexpensive and easy to replace sensor tip is all that is required when the sensor falls out of calibration.

Depth & Stage Sensor - The non-vented digital depth sensor is ideal for profiling applications, while the vented digital stage pressure transducer is designed for long-term deployments.

Eureka Manta Multiparameter Water Quality Recorder

Sonde Specifications

Housing Material: Clear PVC
Diameter: < 2� to 4� depending on sensor configuration
Length: 14� to 20� depending on sensor configuration
Weight: 2 to 4 kg depending on sensor & battery configuration
Operating Temperature: -5 to 50° C
Maximum Depth: 200 m

Communication Interface: USB, RS-232, SDI-12
Memory: 1.5 Mb EEPROM ( Up to 120, 000 measurements)
Power: PC Mode: Direct from PC USB port
SDI-12 Mode: 9 to 18 VDC
Battery Mode: 2� & 3� Sonde: 8 ‘ AA’ alkaline batteries ( external pack)
3.5� & 4� Sonde: 8 ‘ C’ alkaline batteries ( internal pack)

Sensor Specifications

TYPICAL PERFORMANCE SPECIFICATION

Parameter
Range
Accuracy
Resolution
Comments

Temperature
-5° C – 50° C
± 0.1° C
0.01° C

Optical

Dissolved Oxygen ( mg/ L)

Dissolved Oxygen

( % Sat)

0 – 20 mg/ L

20-50 mg/ L

0 – 200%

1% of reading or 0.02 mg/ l, whichever is higher

5% of reading

0.01 mg/ L

0.1

Automatic temperature & pressure compensated.

Salinity correction.

Conductivity

Salinity

TDS
0 – 100 mS/ cm

0 – 70 PSS( PPT)

0 – 65 g/ L
± 0.5% reading + 1 count

± 1% of reading or .1 PSS,

whichever is greater

Calculated from Cond and Temp
4 digits
Automatic temperature compensated.

4-pole graphite type.

Turbidity

Optical 90° Nephelometric

Mechanical Wiper
0 – 3000 NTU
0-100 < 1% of reading

100-400 < 3% of reading

over 400 < 5% of reading
0.1
Self cleaning wipered turbidity

pH
0 – 14 units
± 0.2 units
0.01 units
Automatic temperature compensated.

Ammonium
0-100 mg/ L Nitrogen
± 10% of reading or 2 mg/ L whichever is greater
0.1 mg/ L - N
ION Selective Electrode with replaceable plasticized tips

Nitrate

0-100 mg/ L Nitrogen
± 10% of reading or 2 mg/ L whichever is greater
4 digits
ION Selective Electrode with replaceable plasticized tips

Chloride
.5-18, 000 mg/ L
± 10% of reading or 2 mg/ L whichever is greater
4 digits
ION Selective Electrode with replaceable plasticized tips

Level
0-10 meter
.003 meter
.001
Vented transducer requires vented cable.

Depth
0 – 25 m
± 0.1% FS
0.01 m
Optical Characteristics Chlorophyll:

Light Source: Light Emitting Diode

Excitation Wavelength:

Chl 460nm

Emission Wavelength:

Chl 685nm

0 – 50 m
± 0.1% FS
0.01 m

0 – 100 m
± 0.1% FS
0.01 m

Chlorophyll
.03 - 50µ g/ L
+ / - 3%
0.01 µ g/ L

Rhodamine
0.04 to 1000 ppb
+ / - 3%
0.01 ppb

Blue Green Algae
100-200, 000 cells/ mL
+ / - 3%
20 cells/ mL

Eureka Amphibian Field Display Unit

At about half the price of other sonde field displays, the Eureka Amphibian utilizes commercially available technology to provide a cost-effective solution for real-time monitoring applications. The waterproof, crushproof case meets military specifications and houses a Pocket PC and rechargeable battery pack. The on-board Eureka software provides all the features you need in the field to setup, display readings, and calibrate, the Eureka Manata Multiparameter Sonde.

With a few taps on the screen, you can set up rolling displays of data, capture a frame of data, start a timed log, and average your data readings. Plus the Pocket PC comes with Pocket Word and Excel, and can manage your contacts and address book. Data is automatically transferred to your desktop when you connect, and the free Eureka desktop software allows you to quickly graph and view your data.

The Amphibian comes complete with an Armor 3600 case with lifetime warranty, 9.6 volt rechargeable nickel metal hydride battery pack, battery charger, Sync cable and your choice of PDA: HP iPAQ 1710 - base model or HP iPAQ 2110 - deluxe model with Bluetooth.

Amphibian Specifications:

External Dimensions ( inches) : L 8.5 x W 5.2 x D 3.125
Weight: 2.6 pounds with batteries and PDA
Buoyancy: Positive ( floats)
Battery Life: 20 hours of continuous use
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