PCO2O2M-DTK : Set of the portable digital dissolved CO2/O2 meter for carbonated beverages in tanks, pipe lines or kegs

The PO2M-DTK digital dissolved CO2/O2 is designed to determine the dissolved oxygen and carbondioxide content in beer, beverages, and wine during the production process – whether in production lines, cylindroconical tanks, cylindrical beverage storage tanks, serving tanks or KEG barrels.

The complete set of the oxygen meter & carbondioxide meter with the sampling probe :

The PCO2O2M-DBC set of the portable digital dissolved oxygen-carbondioxide meter and the sampling probe is a benchtop measuring device designed to determine oxygen and carbondioxide content in beer, sparkling water, sparkling wine or other carbonated beverages, in glass bottles, PET bottles or aluminium cans. For PET bottles, the optional holder is required. The electronics are located in an elegant control panel with a color touch screen for operation.

This version includes the CO2 release plunger. The mechanical releasing of gas from a beverage is made by repeated movement of the plunger.

Delivery time : Usualy 4-6 weeks.

Technical parameters :

• Dimensions : H x W x D : 280 x 180 x 350 mm
• Weight : 3.0 kg

Range of supply:

• Measuring device
• Touch LCD panel for determination of the O2 / CO2 content from measured values
• AC/DC adapter (1phase 220-240V 50Hz)
• User’s guide

Principle of measurement of disolved oxygen:

Connect the inlet one-touch fitting of the oximeter to the point where the dissolved oxygen content in the beverage is to be measured using the supplied tubing. Connect the outlet one-touch fitting of the oximeter to the drain using the supplied tubing. Allow the measured beverage to flow through the measuring chamber of the oximeter. The flow through the measuring chamber can be regulated using the valve located on the side of the instrument. Since the oxygen measurement is not dependent on the flow rate of the measured medium, it is sufficient to set a minimal flow. Start the measurement by pressing the Enter key. Wait until the measured oxygen value stabilizes before reading it.

Principle of measurement of disolved carbondioxide:

The device is based on the Henry law principle. Carbondioxide level in a bottle is determined by measurement of the balanced value of temperature and pressure after the mechanical release of dissolved CO2 gas.

Advantages & Benefits & Equipment

• High accuracy and calibration capability: ideal for laboratories with an established ISO 9001/9002 quality system.
• Easy calibration using a mobile phone with Bluetooth.
• No influence from other dissolved gases.
• Flow independence: Oxygen and carbondioxide measurement is independent of the flow rate of the measured medium.
• Simple operation: User-friendly controls.
• Selectable measurement ranges: The device is available in two measurement ranges of your choice. The standard measurement range of disolved oxygen is 0 to 10,000 ppb. For an additional charge, the unit can be equipped with a sensor featuring a lower range of 0 to 2,000 ppb. This sensor offers higher accuracy and a faster response time, making it ideal for detecting trace amounts of O2.
• Data logger function: Enables continuous measurement of O2 / CO2 content in pipelines or tanks.
• Bluetooth interface: Values ​​can be displayed on a mobile phone equipped with Bluetooth and the ArcAir software. The ArcAir software can be downloaded for free from Google Play or the App Store.
• User calibration: Allows for independent calibration of the O2 / CO2 sensors by the user via a Bluetooth-enabled mobile phone with the ArcAir software installed.
• Simple maintenance: Regular zero-point calibration of the O2 sensor (0 ppb) is required at least once every six months.

How to find out level of the O2 / CO2 content from temperature and pressure measured ?

You can simply read the CO2 content on the LCD  :

Optional accessories :

Special holder for PET bottles (optional) :

Frequently asked questions :

What is difference between the standard sensor (0 – 10,000 ppb) and the special sensor (0 – 2,000 ppb) ?

The oximeter with the standard sensor  is a universal instrument with a measuring range of up to 10,000 ppb, covering all common operational measurement needs in production. This versatility is, however, balanced by lower measurement accuracy. The oxymeter with the special sensor (PO2M-S2K) allows measurements only up to 2,000 ppb but offers significantly higher accuracy. It is therefore intended primarily for checking oxygen content in the final product, where very low oxygen concentrations are present.

How often does the oximeter need to be calibrated ?

The oximeter must be calibrated at least once every six months.

What can affect the accuracy of oxygen measurement ?

Measurement accuracy can be negatively affected especially using unsuitable tubing, through whose walls oxygen can permeate into the beverage. Silicone tubing, for example, is unsuitable because it is very permeable to oxygen. In contrast, tubing made of polyether polyurethane is suitable, as it does not allow oxygen to permeate.

Another possible source of error is leakage between the inlet tubing and the fittings, through which oxygen can enter the measured medium.

What is the minimum required purity of CO2 or N2 gas for displacing a beverage sample from its container into an oximeter, to avoid negatively affecting the oxygen measurement ?

The minimum percentage purity of CO₂ or N₂ gas must be 99.999%, with a maximum impurity content of < 10 ppm, designated as grade 5.0.

How to clean the glass carbondioxide sampling cup ?

The device upkeep is easy and fast. Cleaning the device is comfortable and consists of connecting this device to a water pressure distribution with open ball valves and in a parallel depression of a button placed on the top of a device during the circulation of water. The operator holds the equipment in a vertical position during circulation of water so that the whole vessel can be filled by water. After cleaning you disconnect the device from the water cock and you remove the rest of the rinsing water by turning the device upside down. During the whole time of handling this device during measurement and cleaning the operator has this device hanging by a sling on his neck therefore the operator has both hands free during the measurement.