S&S Northern Merlin User Manual

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Merlin Gas Detectors
USER GUIDE
Gas Safety Products
Merlin Gas Detectors
User Guide
Please read this guide carefully and retain for future use.
Rev: 12 Date: 21-03-19
1

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Summary of Contents for S&S Northern Merlin

  • Page 1 Merlin Gas Detectors USER GUIDE Gas Safety Products Merlin Gas Detectors User Guide  Please read this guide carefully and retain for future use.  Rev: 12 Date: 21-03-19...
  • Page 2: Table Of Contents

    Power Supply ......................... 5 Alarm Relay ........................5 Detector ON & OFF ...................... 5 LED Status ........................5 Technical Specification ..................6 Maintenance ..................... 6 Wiring to compatible Merlin panels ..............7 Manufacturer’s Warranty .................. 7 Rev: 12 Date: 21-03-19...
  • Page 3: General Information

    Merlin Gas Detectors USER GUIDE General Information S&S Northern supply a full range of remote gas detectors that are compatible with our range of Merlin panels. These consist of carbon monoxide (CO), natural gas (NG), liquid petroleum gas (LPG) and hydrogen (H) detectors.
  • Page 4: Installation & Location

    Merlin Gas Detectors USER GUIDE Installation & Location Mounting The detector is designed to be wall mounted. Removing the back plate gives access to the circuit board. Do not attempt to remove the Circuit Board! This will void any warranty.
  • Page 5: Operation

    [POWER + -]. Alarm Relay Our range of Merlin Gas Detectors can work with various Merlin systems. If you are using our GDP range you will need to use the [C/L] terminal as an alarm relay whereas on most other systems gas detectors should be wired to the gas detector terminal on the Merlin panel using the [N/C] &...
  • Page 6: Technical Specification

    Merlin Gas Detectors USER GUIDE Technical Specification Power supply 7-30VDC, 80mA max Methane/LPG/Hydrogen - Semiconductor Type Gas Sensor Carbon Monoxide – Electro-Chemical Type Methane 300-10000 ppm LPG 300-10000 ppm Typical Measuring Range Carbon Monoxide 10-10000 ppm Hydrogen 100-10000 ppm Power Up - Warm Up Time...
  • Page 7: Wiring To Compatible Merlin Panels

    Merlin Gas Detectors USER GUIDE Wiring to compatible Merlin panels [+] Power supply, Positive connection from Merlin panel. [-] Power supply, Negative connection from Merlin panel. [CL] Alarm relay, Alarm signal to GDP panel. [N/C] Alarm relay, Normally Closed. Volt free connection.
  • Page 8 Merlin Gas Detectors USER GUIDE               For all correspondence: S&S Northern Head Office Tel: +44(0) 1257 470 983 Fax: +44(0) 1257 471 937 www.snsnorthern.com info@snsnorthern.com South East Division...

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