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Summary of Contents for Nemtek MERLIN 4
- Page 1 GROUP OF COMPANIES MERLIN 4 – Electric Fence Energizer INSTALLER MANUAL ELECTRIC FENCE ENERGISER E-MER4...
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Page 2: Table Of Contents
MERLIN 4 – INSTALLER MANUAL Table of Contents INTRODUCTION………………………………………………………………………… DISCLAIMER……………………………………………………………………………….. GUARANTEE………………………………………………………………………………… MOUNTING / BATTERY REPLACEMENT PROCEDURES……………………… CONNECTION TO THE FENCE……………………………………………………….. CONNECTION / CONFIGURATION DIAGRAM…………………………………… PC BOARD REPLACEMENT PROCEDURES………………………………………… SERVICE CONDITIONS………………………………………………………………….. INSTALLER OPTIONS……………………………………………………………………. 10-15 FAULT FINDING……………………………………………………………………………. COMPLIANCE WITH INTERNATIONAL STANDARDS………………………….. 15 FREQUENTLY ASKED QUESTIONS………………………………………………….. -
Page 3: Introduction
Disclaimer I N T R O D U C T I O N The MERLIN 4 is a battery (12V 7AH nominal) operated energizer suitable for connection to mains (230V 50Hz nominal). The batteries to be used are rechargeable lead-acid batteries. -
Page 4: Guarantee
IO Tech Manufacturing (Pty) Ltd does not guarantee that the operation of the product will be uninterrupted and totally error free. Faulty units must be returned to Nemtek, Units 4 & 5, 64 Vervoer Street, Kya Sand, Randburg, Gauteng, South Africa OR Nemtek Security Warehouse, Unit 4, Meadowdale Park, Cnr. -
Page 5: Mounting / Battery Replacement Procedures
MERLIN 4 Mounting / Battery Replacement Procedures *Energizer to be mounted vertically against a flat surface, in well ventilated area. *Avoid prolonged exposure to direct sunlight STEP 1: Disconnect mains. Open the lid by removing the two cap screws. Unplug the battery terminals if connected. -
Page 6: Connection To The Fence
MERLIN 4 Connection To The Fence OPTION 1: NO EARTH LOOP MONITORING Bridge the earth OUT to earth RETURN. The unit will now function as per the old version WIZORD. 230VAC FENCE MAINS EARTH RETURN E N C E T O F... -
Page 7: Connection / Configuration Diagram
MERLIN 4 Connection / Configuration Diagram 18VAC INPUT INSERTED PC BOARD STROBE LIGHT SWITCH RET RET FENCE EARTH Radio Alarm +-12V AUXILIARY BATT + ALARM INPUT Relay N.O. Board Strobe 12VDC Light Siren MAXIMUM 100 METERS OF COMMS CABLE PC BOARD... -
Page 8: Pc Board Replacement Procedures
MERLIN 4 PC Board Replacement Procedures REMOVAL: STEP 1: Disconnect mains and battery terminals if connected 12V 7AH Battery STEP 2: Remove screws STEP 3: Remove all connectors from PC Board STEP 4: Gently pull PC Board straight up to remove (connections on the... -
Page 9: Service Conditions
MERLIN 4 Service Conditions FUSE DESCRIPTION & FAULT SYMPTOMS PC BOARD HOW TO CHECK: (ALL FUSES ARE 2 AMPERE FAST BLOW) Energizer does not operate when mains is switched off Siren or strobe light does not operate (ensure that the unit was... -
Page 10: Installer Options
MERLIN 4 Installer Options INSTALLATION NOTES: 1. Keep the wires to the fence separate from the keypad/gate/siren/strobe/ mains/remote wiring. 2. Do not try and modify the unit. Any unauthorised modifications will null and void the warranty and possibly make the unit illegal. - Page 11 MERLIN 4 Installer Options ENTER PROGRAMMING MODE Before any of the installer options can be changed, the unit must be in programming mode. To do so, enter the 6 digit installer PIN followed by the * 0 # keys. •...
- Page 12 MERLIN 4 Installer Options SIREN-OFF TIME The time for the siren to be silent after the Siren-On Time has elapsed, can be changed by pressing the 0 key followed by the 2 key. Select the desired time from the table and press the corresponding number from 0 to 4 followed by the # key.
- Page 13 MERLIN 4 Installer Options The keypad will beep twice to indicate that the setting was accepted. Example: To change the Fence Voltage to 6 kV, enter 0 5 3 # 3.0 kV 4.0 kV 5.0 kV 6.0 kV The default Fence Voltage is 7 kV.
- Page 14 MERLIN 4 Installer Options SWITCH FUNCTION (6 WAY TERMINAL STRIP) The switch input, marked as ‘switch’ on the printed circuit board under the removable 6-way green connector block, can be configured as a timed input (typically used for monitoring a gate) or as a remote On/Off input.
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Page 15: Fault Finding
Check fuses/mains/battery COMPLIANCE WITH INTERNATIONAL STANDARDS The Merlin 4 Energizer has been designed to comply with the latest International safety and environmental standards. The manufacturer, IO Tech Manufacturing (Pty) Ltd., reserves the right to make modifications and alter specifications without prior notice. -
Page 16: Frequently Asked Questions
MERLIN 4 FAQ’s FREQUENTLY ASKED QUESTIONS Q: Why do the alarm indicator lights sometimes flash at different rates and sometimes be lit permanently? A: A slow flash indicates a bypass condition. The respective alarm will not trigger when the energizer is in this state. A fast flash indicates that the alarm condition still persists i.e. -
Page 17: Appendix A
MERLIN 4 Appendix A BASIC DEFINITIONS: Electric Fence: a barrier which includes one or more electric conductors, insulated from earth, to which electric pulses are applied by an energiser Connecting Lead: an electric conductor, used to connect the energiser to the... - Page 18 MERLIN 4 Appendix A Cont’d Warning signs shall be placed at each gate each access point intervals not exceeding 10m adjacent to each sign relating to chemical hazards for the information of emergency services. Gates in electric security fences shall be capable of being opened without the person receiving an electric shock.
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Page 19: Appendix A
MERLIN 4 Appendix A Cont’d Where an electric security fence passes below bare power line conductors, the highest metallic element shall be effectively earthed for a distance of not less than 5m on either side of the crossing point. This height applies either side of the orthogonal projection of the outermost...
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