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Installation, Operation & Maintenance                                                                                   Merlin CO2 TFT

 

 

 

Rev 1   05-21 

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Merlin CO2 TFT 

Carbon Dioxide & Temperature Monitor 

             
 
 

 

CO

2

 measured and displayed in parts per million (PPM). 

 

Temperature can be displayed in degrees Celsius (°C) or Fahrenheit (°F). 

 

0-10V Signal Output progress bar display. 

 

Monitor, record and display average CO

2

 concentration over 8 hour periods. 

 

User friendly settings menu. 

 

Pre-alarm and alarm relay output. 

 

Fan controller enabled relay output. 

 

Dual power input 110-120vac or 12-24v ac or dc. 

 

End of Life notification for CO

sensing element. 

 

Automatically switch between ventilation programs when gas is used. 

 

Boost, Mute and Wake Up feature. 

 

 

 

 



Installation, Operation & Maintenance 

Please read this manual carefully and retain for future use. 

 

The Merlin CO2 TFT is designed to monitor carbon dioxide (CO

2

) in the air and temperature.  

The monitor has a digital traffic light style display indicating the carbon dioxide levels and temperature in the area. 
When CO

2

 gas or temperature reaches alarm state – this device is able to automatically drive ventilation reducing CO

2

 

and/or temperature. 

 
 

 

 

The information contained within this manual should be referenced for typical installation and operation only.  

 

For specific requirements that may deviate from the information in this manual – contact your supplier.  

 

Summary of Contents for Merlin CO2 TFT

Page 1: ...omatically switch between ventilation programs when gas is used Boost Mute and Wake Up feature Installation Operation Maintenance Please read this manual carefully and retain for future use The Merlin...

Page 2: ...unting 4 Board Overview 4 Wiring your CO2 TFT 5 Configuration Settings 6 Configuration 6 Factory Set Condition 7 Operation 8 Initial Power Up Indicators 8 Traffic Light Indicator 9 Alarms Configuratio...

Page 3: ...ed to replacement of the product with repaired product at the discretion of the manufacturer This warranty is void if the product has been damaged by accident unreasonable use neglect tampering or oth...

Page 4: ...here possible monitors must be fixed in such a position as to allow natural air circulation These recommended heights may vary based on airflow and temperature conditions in addition to the proposed a...

Page 5: ...n mode until the gas supply is turned off see Settings for configuration Recommended for teaching areas with gas appliances such as laboratories and food technology rooms CO2 ALARM Not a mains output...

Page 6: ...hts setting red Press to save desired setting Configuration NAT Natural Ventilation Mode Recommended for buildings without mechanical ventilation Pre Alarm 1300ppm 23 C 73 4 F Alarm 1500ppm 25 C 77 0...

Page 7: ...minutes Boost can be activated only if analogue outputs are set to either CO2 or DUAL mode only Select 1 2 3 4 5 6 7 8 9 10 minute s FAN ENABLE Fan switch is energised by CO2 ON 600ppm OFF 550ppm TEM...

Page 8: ...ears when the touch button f is pressed The audible alarm buzzer must be set to on or every 10 minutes and can only occur when gas is in use or KITCH Ventilation mode is selected and when CO2 levels r...

Page 9: ...Default Green 1500ppm 23 C 73 4 F Yellow 1500ppm 23 C 73 4 F Red 2800ppm 25 C 77 0 F CO2 Pre alarm relay switch 2800ppm CO2 Alarm relay switch 4500ppm 0 10V Analogue Output Progression Min output 1 5...

Page 10: ...e device High concentrations of alcohol found in many products may damage deteriorate or affect the gas sensing elements such as wine deodorants stain removers thinners etc Auto Calibration Our CO2 se...

Page 11: ...30mm 5 51 x 3 74 x 1 18 Unit Weight Approx 0 08kg Housing Material Polylac PA765 Environmental Ingress Protection IP40 Storage Conditions Dry Temp 10 50 C 14 122 F 30 80 rh Compliance CE EN 50270 EN 6...

Page 12: ...or any errors or omissions in this document or their consequences CGS would greatly appreciate being informed of any errors or omissions that may be found in the content of this document For informati...

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