Embra CarboCheck System 2000

Non-sampling, integrated CO₂ measurement and control system for soft drinks, beer and other carbonated beverages.

Background

Originally launched in 1982 and with over one thousand sensors installed round the world, we have now released the Embra CarboCheck System 2000, for the new Millennium. With many major improvements, we have again demonstrated our commitment to continuous development.

General Description

As the world's leading CO₂ monitor and control system, Embra CarboCheck uses the well-known saturation pressure / temperature technique for accurate, non-sampling measurement. Embra CarboCheck can be used for measurement alone or configured as a control system.

Principle of Operation

The CarboCheck sensor features a silicone rubber membrane through which the dissolved CO₂ permeates into a sealed, evacuated chamber. The partial pressure of the gas is then measured and displayed by the analyser / control unit as a CO₂ content. The system incorporates a vacuum exhauster to regularly evacuate measurement of dissolved CO₂. The analyser / control unit can be linked to a carbonation system to provide fully integrated CO₂ measurement, injection and control.

Enhancements

CarboCheck System 2000 incorporates:

Measurement and compensation for the effects of O₂ and N₂
Discrete calibrations for different products
Start / Stop and product set-point remote change facility
Improved performance on filling lines

Typical Applications

Beer carbonation ex-filter
Soft drinks production
Mineral waters carbonation
Sparkling wines carbonation
In-line CO₂ monitoring on brewery and soft drinks packaging lines
Carbonation of premixed drinks

Benefits

Accurate monitoring and control of dissolved CO₂ levels in beer, soft drinks and other carbonated beverages
Improved "right first time" carbonation figures in-line or in tank
More efficient process control
Reduction in rework

Features

Accurate to ± 0.02 vol / vol (± 0.04 g/l)
No sampling or product by-pass lines
Hygienic fitting, can be cleaned-in-place
No moving parts (only two solenoids)
Low maintenance requirement
Available as a single / dual channel controller or up to 4 channel monitor

Description of Equipment

The measuring system comprises the analyser / control unit. CO₂ sensor assembly, resistance thermometer and vacuum exhauster.

Analyser / Control Unit

Supplied in an IP65 (NEMA 4) enclosure for panel or wall mounting, the control unit can monitor up to four process streams. High and low alarms are available for each channel, as are outputs for recorders, PLC's or supervisory systems.
The analyser / control unit also provides:

Analogue outputs of CO₂, temperature and pressure
Analogue inputs for high and low level alarms
Digital inputs for remote start, no flow / recyle
RS422 serial communications links

The CO₂ Sensor

This is designed to fit in the shortened leg of a standard 3" ISS T-piece or varivent type body. The materials in contact with the liquid are food quality 316 stainless steel and silicone rubber cured to 250ºC, impervious to all known CIP solutions.

Resistance Thermometer

Supplied complete with a stainless steel pocket suitable for welding into the main product line, this is a standard unit for ease of maintenance.

The Vacuum Exhauster

This is housed in a separate IP65 (NEMA 4) polycarbonate enclosure. The function of the unit is to evacuate the sealed chamber of the CO₂ sensor at the startup to remove all gases. The cell is 'refreshed' regularly (at a user defined interval) to maintain the accuracy of the reading.

Free-standing Skid Unit

CarboCheck can be supplied as part of a free-standing carbonation system allowing operation from the panel mounted on the skid. The analyser / control unit may alternatively be sited in the control room.

Equipment fitted to the free-standing skid unit may inlude: