S&S Northern Merlin RS Series Installation & Operation Manual Download Page 1

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S&S NORTHERN LTD

–

PR7 7JN, UK Tel: +44 (0) 1257 470983 -

info

snsnorthern.com

Merlin

Series

Safety & Health Monitoring Room Sensors

INSTALLATION & OPERATION

Please read these instructions carefully before use and retain for future reference.

These instructions can also be downloaded in electronic form on the product website.

sns

northern.com

Summary of Contents for Merlin RS Series

Page 1: ...com Merlin RS Series Safety Health Monitoring Room Sensors INSTALLATION OPERATION Please read these instructions carefully before use and retain for future reference These instructions can also be dow...

Page 2: ...Information 4 Coverage 4 Positioning 4 Mounting Instructions 5 PCB Overview 5 Power Wiring 6 10V Output Wiring 6 VFC Relay Wiring 7 Thermistor Wiring 7 RS 485 Wiring 7 Analog Configuration Switches 8...

Page 3: ...in material and workmanship for a period of 3 Years from the date of purchase The manufacturer s liability hereunder is limited to replacement of the product with repaired product at the discretion of...

Page 4: ...knowledge of CO2 dispersion process plant systems and any equipment involved Seek advice where necessary in consultation with both safety and electrical engineering personnel Consider air flow pattern...

Page 5: ...mm 1 2 cut out Execute the mounting and connections NOTE Terminals are pluggable type for ease 4 Secure the front cover by aligning the top and then securing the M2 screw in place PCB Overview All Cla...

Page 6: ...inear output for CO2 PPM Temperature C F and Humidity rH During normal operation the output of the device is proportional to the values In normal operation output levels are proportional to the gas le...

Page 7: ...configured in a single bus topology connecting multiple buses in parallel or branching multiple units from the main bus may introduce impedance mismatches reflections and or signal distortions Ensure...

Page 8: ...Output Linear Scale ON 2 10V OFF 0 10V OFF 0 10V B1 NOT USED B2 NOT USED The average concentration of CO2 in air is around 400ppm or 0 4 TH Temperature and Humidity Digital RS 485 Configuration Switch...

Page 9: ...e a valid reading output There are no warnings alarms for Temperature or Humidity levels CO2 warning levels will depend on configuration at install PPM Parts Per Million CO2 Range OK Low CO2 Warning H...

Page 10: ...utputs 1x SPST 70mA Thermistor Betatherm 10K3A1B For alternative Thermistors contact your supplier Cable Spec Power 1 0 2 5mm2 max Analog Output 1 0 2 5mm2 max Digital Output 1 0 2 5 mm2 twisted pair...

Page 11: ...Merlin RS Installation Operation Manual REV 06 Page 11 of 12 Page intentionally left blank...

Page 12: ...ort is made to ensure the accuracy of this document however S S Northern can assume no responsibility for any errors or omissions in this document or their consequences S S Northern would greatly appr...