Online Monitoring & Control of Gas Flush O2/CO2/N2
for Vertical and Horizontal Flow Packaging Machines


  • Online monitoring of O2 and CO2
  • Works in conjunction with packing machine
  • For Vertical and Horizontal flow packagers
  • Reduces gas usage
  • Real time flushing control
  • Avoids waste or incorrectly flushed packages
  • Data Logging for QC records
  • Optional control of gas mixer
  • Touch Screen Operation
  • Programming for different products
  • PC Software included
  • PDF Data Sheet

The MAPCHECK 3 continously monitors the modified atmosphere flushing gases in Vertical and Horizontal Flow Wrapper packaging machines. The real time monitoring of the package atmosphere improves productivity in several ways. It saves gas by tuning the gas flow to the optimum level for the packing machine. It reduces waste because if there is problem the MapCheck can halt the machine. It improves quality because every package is checked before sealing and this in turn reduces the amount of off line testing that would otherwise be required. An optional gas save feature allow the MapCheck to monitor and control the flow of gas to the packages. If for example the residual oxygen is reading to high (not flushed enough) then the flow of flushing gas can be increased automatically to achieve the desired level.
The MapCheck can also be integrated with a Provectus gas mixer so that it can automatically control both the gas flow and mix to suit the production conditions. Data logging can be used to record gas content and consumption for every run so that a quality control record can be built up.

Benefits of the MAP Check 3 gas analyzer for modified atmosphere packaging flow wrappers

  • Enables major gas savings with optional GasSave function or when paired with MAP Mix Provectus gas mixer
  • Logs and displays actual gas consumption for easy traceability with GasSave function
  • Reduces labour and waste costs compared to manual testing
  • Avoids recalls/repacking by stopping packaging machine if machine exceeds preset limits
  • Reduces work area CO2 levels to protect employees

Features of the MAP Check 3 gas analyzer for modified atmosphere packaging flow wrappers

  • 5” colour touch screen
  • Improved data logging capabilities with USB, Ethernet, TCP Modbus
  • Ability to control MAP Mix Provectus gas mixer
  • Delivered with PC software
  • Optional: IP45 protection kit, 3-channel multiplexer
  • Optional built-in GasSave flow controller


MapCheck 3 Combined O2/CO2 OR O2 Online Gas Monitor
Package Types Oxygen Sensor Carbon Dioxide Sensor
Measuring Range Solid State 0-100%

Dual beam IR sensor - 0-100%

Accuracy ±0.01% absolute below 1% O2
±1% of reading in range above 1%
±0.5% absolute
±1.5% of reading
Warm up time 10 minutes 8 minutes
Models Available with LCD display or as “Black Box” without display
Connections 2 x RS232C, LAN 10/100 Mbit (Modbus TCP), USB, current or voltage output, 24 VDC logic for start/stop of machine and alarms
Analog Output 0-10V, 2-10V, 0-20mA, 4-20mA selectable
Power Supply 103-132 /207-264 VAC Universal
Dimensions 192 x 230 x 375 mm HxWxD
Weight 20 lbs
Gas Save Option
Gas Media Any dry mix of Nitrogen, Carbon Dioxide, Oxygen
Inlet pressure 2 to 10 Bar
Pressure Drop 1 Bar at 10 Bar input pressure
Gas Flow control 6 - 500 l/min
Flow Measurement total and daily consumption
Multiplexer Option
Number of inputs 3 (Channel priority: Selectable, 1-2-3- or 1-2-1-3-)
Other Optional Accessories
Cabinet Protection IP45 NEMA 3S optional protection kit

Ordering Information

Model Description Price
MapCheck Monitor unit of O2 and CO2 detection Call for quote
Gas Save Flow controller integrated with MapCheck
Provectus Electronic Gas Mix Contoller