Merlin 4
Electric Fence Energizer
User Manual
Introduction & company profile 3
Guarantee 4
NEMTEK Group outlets 5
Using your keypad 6
What the lights indicate 9
IEC safety information 10
Table of Contents
2
INTRODUCTION
Thank you for choosing our product! The NEMTEK Merlin 4 Electric Fence Energizer is designed
and manufactured to provide many years of reliable use, if installed and maintained correctly.
The guidelines provided in this manual will assist you with the basic operation and maintenance
of your Merlin 4.
Currently this product is designed and manufactured in South Africa for the South African and
international markets. More information on our products and general information are available
on our web site at: http://www.nemtek.com.
COMPANY PROFILE
The NEMTEK Group of Companies manufacture and distribute intelligent electronic agricultural
fencing systems, security and perimeter control systems and have been involved in the security
industry since 1990.
We have our own research and development team, designing and manufacturing a full range of
globally competitive electric fence energizers and related products.
NEMTEK is continually updating its products according to South African and international
standards in order to ensure the highest quality products and continuous customer satisfaction.
Introduction & company profile
3
GUARANTEE
The Merlin 4 Electric Fence Energizer, manufactured by NEMTEK, is guaranteed for a period of
two years from date of sale against defects due to faulty workmanship or materials.
NEMTEK will, at its discretion, either repair or replace a product that proves to be defective.
NEMTEK guarantees that the product, when properly installed and used in line with the
specification as determined by NEMTEK from time to time, will execute its function of
generating a suitable potential. NEMTEK does not guarantee that the operation of the product
will be uninterrupted and totally error free. Faulty units must be returned to one of the NEMTEK
Group outlets. The buyer shall pay all shipping and other charges for the return of the product
to NEMTEK or NEMTEK Security Warehouse.
LIMITATION OF GUARANTEE
The guarantee does not apply to defects resulting from acts of God, modifications made by the
buyer or any third party, misuse, neglect, abuse, accident and mishandling.
EXCLUSIVE REMEDIES
The remedies provided herein are NEMTEK’s sole liability and the buyer’s sole and exclusive
remedies for breach of guarantee. NEMTEK shall not be liable for any special, incidental,
consequential, direct or indirect damages, whether based on contact, tort, or any other legal
theory. The foregoing guarantee is in lieu of any and all other guarantees, whether expressed,
implied, or statutory, including but not limited to warranties of merchantability and suitability
for a particular purpose.
Guarantee
4
HEAD OFFICE
Tel: +27 (0)11 462 8283 Northriding Commercial Park
Fax: +27 (0)11 462 7132 Stand 251, Aintree Street, Northriding
Randburg, South Africa
EXPORTS
Tel: +27 (0)11 462 8283 exports@nemtek.com
Fax: +27 (0)11 462 7132
EDENVALE
Tel: +27 (0)11 453 1970 Unit 4, Meadowdale Park
Fax: +27 (0)11 453 1858 Cnr. Dick Kemp & Herman Roads
Meadowdale, Edenvale, South Africa
CAPE TOWN
Tel: +27 (0)21 386-3742 27B Concord Crescent, Airport City
Fax: +27 (0)21 386-5573 Cape Town, South Africa
NELSPRUIT
Tel: +27 (0)13 752-2187 Waterval Ave, Riverside Industrial
Fax: +27 (0)13 752-2188 Nelspruit, South Africa
KWAZULU-NATAL
Tel: +27 (0)31 701-2125 19 Henwood Road
Fax: +27 (0)31 701-2125 Pinetown, South Africa
AUSTRALIA
Tel: (08) 9303 9855 Unit 5, 19 Innovation Circuit,
Email: nemtek@bigpond.net.au Wangara, 6065, Perth, WA, Australia
Website: www.nemtek.com
E-mail: nemtek@nemtek.com
Manufactured in South Africa
NEMTEK Group outlets
5
SWITCH THE FENCE ON/OFF
To switch the fence On or Off, enter your four digit PIN followed by the # key.
If the red ON light is lit or flashing, the fence is energized.
• Don’t pause for more than 5 seconds while entering the digits, or the control panel
will reject your PIN number.
• If you make a mistake while entering your PIN, press the # key and start again.
• The default master (User # 1) PIN is 1 2 3 4.
The default user (User # 2) PIN is 5 5 5 5.
AFTER AN ALARM OCCURS
Enter your PIN and press the # key. This will silence the buzzer and siren.
It will switch the fence off. One of the ALARM lights will flash or stay lit to indicate the
source of the alarm. A flashing indicator illustrates that the fault condition persists.
A permanently lit indicator notifies the user that the fault no longer exists.
CHANGE THE VOLTAGE
ON THE FENCE
Enter your PIN and press the * key, enter the digit 3, then press the # key.
When the fence is on and in low voltage mode, the red ON light will flash.
The red ON light will stay permanently lit if the fence is in high voltage mode.
Use the low voltage mode when children are in the fence vicinity.
BYPASS THE FENCE ALARM
Enter your PIN and press the * key, enter the digit 1, then press the # key.
The FENCE ALARM light will start flashing slowly to confirm the fence alarm is bypassed.
To cancel the bypass, repeat the same sequence of keys.
Using your key pad
6
Using your key pad
7
BYPASS THE SIREN AND STROBE
LIGHT (SILENT ALARM)
Enter your PIN and press the * key, enter the digit 4, then press the # key.
The beeper in the control panel and energizer will still be active.
UN-BYPASS THE SIREN AND
STROBE LIGHT
Enter your PIN and press the * key, enter the digit 7, then press the # key.
MAKE THE GATE ALARM
IMMEDIATE
Enter your PIN and press the * key, enter the digit 2, followed by the digit 7, then press
the # key. The GATE ALARM light will start flashing, with a cadence of one flash every 5
seconds, to confirm the gate alarm is immediate.
MAKE THE GATE ALARM
DELAYED
Enter your PIN and press the * key, enter the digit 2, followed by the digit 4, then press
the # key. The default gate delay is 4 minutes.
BYPASS THE GATE ALARM
Enter your PIN and press the * key, enter the digit 2, then press the # key.
The GATE ALARM light will start flashing slowly to confirm that the gate alarm is
bypassed. To cancel the bypass, repeat the same sequence of keys.
TURN THE GATE CHIME ON/OFF
Press the * key, enter the digit 2, then press the # key. The control panel will beep twice
to confirm that the gate chime is turned off and three times if it’s turned on. If the chime is
on, the control panel will beep once if the gate closes and three times if it opens.
Using your key pad
8
BYPASS THE SERVICE ALARM
Enter your PIN and press the * key, enter the digit 9, then press the # key.
The SERVICE ALARM light will start flashing slowly to confirm that the service alarm is
bypassed. To cancel the bypass, repeat the same sequence of keys.
CHANGING A USER PIN
Master PIN
User (1-2)
New PIN
New PIN
Enter your master PIN, press the * key, enter the digit 0, then press the # key.
Enter the user number (1-2), and push the # key. User number 1 is the master PIN. Enter
that user’s new PIN and press the # key. Enter the new PIN again and press the # key. If
the new PIN is accepted, the control panel will beep twice. If you make a mistake while
programming, or if the system rejects the new PIN, the control panel will beep three times.
The default master user PIN is 1 2 3 4. Check the new PIN. If not accepted, the previous
PIN will remain valid.
KEY DEFINITIONS:
Four digit Personal Identification Number (PIN)
NOTES:
• The Master User (i.e. User #1) can bypass alarm conditions.
• The Normal User (i.e. User #2) can only turn the energizer on/off.
• The installer may alter certain energizer parameters such as voltages and
delay times.
What the lights indicate
9
Condition:
Power
Light
Good
Light
On
Light
Fence
Light
Gate
Light
Service
Light
Remarks
FENCE GOOD
ON
SLOW
FLASH
ON
OFF
OFF
OFF
Fence on,
working properly
FENCE OFF
ON
OFF
OFF
OFF
OFF
OFF
Fence off,
working properly
MAINS
FAILURE
OFF
System on
battery power
BATTERY
LOW
ON
PULSE
(5 SEC)
Check mains,
call for service
BATTERY
FLAT
FAST
FLASH
Check mains,
call for service
FENCE ALARM
OFF
FAST
FLASH
Problem on
fence
FENCE LV
MODE
SLOW
FLASH
Fence in low
voltage mode
FENCE
BYPASS
SLOW
FLASH
Fence alarm
switched off
GATE OPEN
FAST
FLASH
Gate is open
GATE BYPASS
SLOW
FLASH
Gate alarm
switched off
INSTANT
GATE
PULSE
(5
SEC)
Instant gate
alarm
SERVICE
ALARM
FAST
FLASH
Call for service
SERVICE
BYPASS
SLOW
FLASH
Service alarm
switched off
ALARM
MEMORY
(ON)
(ON)
(ON)
Old alarm. Turn
off/on
10
IEC Safety Information
• There are no user serviceable parts inside the energizer.
• If the supply cord is damaged, it must be replaced by the manufacturer,
its service agent, or similar qualified persons in order to avoid a hazard.
• This appliance is not intended for use by persons (including children)
with reduced physical, sensory or mental capabilities, or lack of
experience and knowledge, unless they have been given supervision or
instruction concerning use of the appliance by a person responsible for
their safety.
• Electric fencing can be lethal. Avoid head contact with the fence.
Ask the installer to explain the options of current limiting resistors, the
programmable output energy levels as well as the low-voltage operation
of the energizer.
E-MER4: Rev 1.0
E-MER4: Rev 1.1 7 June 2015
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