Aqualabo ODEON Open One

Anyone who takes measurements in the field or directly at a sewage treatment works is familiar with the problem: a simple handheld meter is sufficient for a quick spot check, but not for measurement series requiring documentation involving multiple samples, users and campaigns. The Aqualabo ODEON Open One bridges this gap as a portable, multi-parameter handheld meter featuring a single sensor channel, a large graphic display and its own PC software: It automatically recognises the connected digital PONSEL sensor, stores more than 100,000 GLP-compliant data records – including sample, user and campaign IDs – and transfers the measurement series via USB to the supplied ODEON Viewer software.

Large display, ample memory, GLP-compliant documentation

The 4-inch, backlit graphic display with a resolution of 240 x 320 pixels shows the measured value alongside the date, time, user, sample, temperature, status and air pressure, whilst displaying up to 7 parameters simultaneously. An 8 MB memory operates in the background, storing more than 100,000 GLP-compliant data records, each with a sample ID, user ID, date and time. Three recording modes – manual, interval or continuous – cover both one-off measurements and automated measurement sequences. Sample, campaign and user IDs can be assigned alphanumerically with up to 10 characters; the device manages up to 20 users simultaneously, which is practical for teams sharing a single device.

Sensor automatically detected, ready to measure straight away

As soon as a digital PONSEL sensor is connected to the 6-pin grey metal connector, the ODEON Open One automatically recognises it and performs a self-diagnosis – plug-and-play without the need for manual sensor configuration. The housing and connections are IP67-rated; the device can therefore withstand brief submersion and is suitable for use on site, at the water’s edge and in the laboratory. Power is supplied by 4 AA alkaline batteries; optionally, it can also be powered by rechargeable NiMH batteries or an external 12 V power supply. Depending on the configuration, the operating time ranges from 145 to 190 hours.

Selection guide: choosing the right sensor and cable length

The ODEON Open One is available with seven different digital PONSEL sensors, each in cable lengths of 3 m, 7 m or 15 m. The following overview matches the different models to typical measurement tasks:

The cable length depends on the distance between the operator and the measuring point: 3 m is sufficient for measurements directly at the vessel or tank edge; 7 m bridges medium tank depths; 15 m is suitable for deep tanks, shafts or measuring points further away from the operator’s station.

Differentiation within the Aqualabo range of handheld measuring instruments

Aqualabo offers its portable handheld measuring instruments in four versions: the Aqualabo NEON as a single-parameter device with a hard-wired sensor; the Aqualabo NEON OPEN with Open Technology for interchangeable digital sensors; and the ODEON Open One and the Aqualabo ODEON X as larger platforms featuring a large graphic display, more memory and dedicated PC software. The following table compares the four versions:

If you only need to continuously measure a single, fixed parameter, the NEON is sufficient. If you wish to change the sensor occasionally but can do without the larger display and greater memory capacity of the ODEON range, the NEON OPEN is the right choice. For measurement series requiring documentation, with a large display, high memory capacity and PC analysis, the ODEON Open One with a single sensor channel is the right choice; the ODEON X adds a second channel for the simultaneous measurement of two parameters.

Typical applications

As a portable handheld measuring device with automatic sensor selection and GLP documentation, the ODEON Open One is suitable for, amongst other things:

• Municipal wastewater treatment, such as inlet, aeration tank and effluent monitoring
• Industrial wastewater treatment and process water monitoring
• Drinking water monitoring
• Surface waters and natural water bodies in field applications
• Switching between laboratory and field use with the same instrument and interchangeable sensors

Day-to-day use, calibration and maintenance

Calibration and maintenance depend on the selected sensor. According to the manufacturer, the OPTOD optical oxygen sensor operates without the need for calibration during normal use and requires no membrane or electrolyte; the only regular maintenance required is replacing the DOdisk cap every 2 years. The PHEHT and PHT pH sensors are calibrated at 3 points, and their cartridges can be replaced as required. The C4E conductivity sensor is calibrated across four measurement ranges, each with two calibration points, and is, according to the manufacturer, maintenance-free. The NTU turbidity sensor is calibrated with two points per measurement range and requires no consumables. The MES5 suspended solids sensor and the VB5 sludge level sensor operate optically and are set up with one or two calibration points, depending on the measured parameter. Suitable pH buffer solutions from our range are available for pH calibration; to replace worn electrodes, please take a look at our range of electrodes.

Data export, storage and disposal

Charging and connection to a PC are carried out via the same 7-pin metal connector. The ODEON Viewer software analyses the measurement series in tabular and graphical form and exports them as CSV, XLS, XLSX, JPEG, PNG, TIF or PDF files, for example for GLP documentation or transfer to a laboratory information system. For storage, the manufacturer specifies a range of -25 to +65 °C at 0 to 80 per cent relative humidity. At the end of its service life, the device must be disposed of as waste electrical and electronic equipment via a separate collection scheme; see ‘Regulatory Information’ below for further details.

Investment rationale: a platform rather than a standalone device

Those already working with Aqualabo or Ponsel sensors do not necessarily need to purchase a complete sensor set: the Aqualabo ODEON Open One base unit without a sensor is designed precisely for this scenario. For everyone else, it is worth considering the platform as a whole, because unlike a device designed for a single parameter, the ODEON Open One comes complete with GLP-compliant documentation, sample and user management, and the ODEON Viewer PC software. As the device automatically recognises any compatible digital PONSEL sensor, the sensor range can be expanded as requirements grow without having to replace the base unit. Anyone wishing to measure two parameters simultaneously from the outset – such as pH and conductivity in a single operation – is better off with the Aqualabo ODEON X, which features two sensor channels.

Frequently asked questions about the ODEON Open One

What is the difference between the ODEON Open One and the ODEON X?
The ODEON Open One has one sensor channel, whilst the ODEON X has two. This means that the ODEON X can measure two parameters simultaneously, such as pH, redox and temperature together with conductivity. According to the data sheet, the other technical specifications, such as the display, memory and protection rating, are identical for both devices.

How many measurement readings can be stored on the device?
The 8 MB memory can store more than 100,000 GLP-compliant data records, each with a sample ID, user ID, date and time.

Do I need to configure the sensor manually?
No. The ODEON Open One automatically recognises connected digital PONSEL sensors and performs a self-diagnosis – plug and play.

What cable lengths are available for the sensors?
The digital PONSEL sensors are available with 3 m, 7 m or 15 m cables.

How is the measurement data analysed?
Via the supplied ODEON Viewer PC software using a USB cable, with tabular and graphical analysis as well as export to CSV, XLS, XLSX, JPEG, PNG, TIF or PDF.

Is the device suitable for outdoor use?
Yes, the housing and connections are IP67-rated. Power is supplied by 4 AA alkaline batteries; optionally, rechargeable NiMH batteries can also be used, with a runtime of 145 to 190 hours depending on the configuration.

Can I retrofit additional sensors at a later date?
Yes. As the device automatically recognises any compatible digital PONSEL sensor, the sensor set can be expanded as required, for example if additional measurement parameters are needed.

Technical details

Contents

• 1 ODEON Open One unit, factory-fitted with 4 AA alkaline batteries
• 1 digital PONSEL sensor with a 3 m, 7 m or 15 m cable, depending on the model selected
• 1 ODEON PC connection cable (USB)
• Standard solutions 125 ml, depending on the parameter
• Shock-resistant carrying case for up to 2 sensors, PC cable and 4 bottles of standard solution
• ODEON Viewer PC software

The device operates out of the box using the 4 AA alkaline batteries supplied; a charger is not included in this set, according to the manufacturer. For operation with rechargeable batteries, the ODEON Rechargeable Battery accessory kit, comprising a charging cable and 4 NiMH rechargeable batteries, is available separately, reference NC-ACC-C-00001.

Regulatory information

As an electrical appliance, the ODEON Open One is subject to the German Electrical and Electronic Equipment Act (ElektroG). At the end of its useful life, the device must not be disposed of with household waste but must be taken to a separate collection point for waste electrical and electronic equipment.

Individual Requirements & Procurement Service

Our procurement service is here to assist you with additional sensors, replacement cables, standard solutions or equipping multiple ODEON devices with a shared sensor pool. We would also be happy to discuss the most suitable equipment with you if you have any questions regarding calibration accessories from our range of measurement technology or a comparison with NEON, NEON OPEN and ODEON X.