JVA MB8 Installation And User Manual
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Summary of Contents for JVA MB8
- Page 1 JVA ElEctric FEncE EnErgizEr MB8 • MB12 • MB16 installation and User Manual October 2019 Edition JVA AGRIRANGE ENERGIZERS...
- Page 2 JVA AgriRange Energizers INTRODUCTION Congratulations, and welcome to the shocking world of JVA. We thank you for placing your faith in our product range. In doing so you have joined the world-wide body of satisfied JVA users who are benefiting from our products.
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Page 3: Table Of Contents
JVA MODELS AND FEATURES ........ - Page 4 MB8, MB12, MB16 JVA AgriRange Energizers Table of Contents (continued) COMMON ENERGIZER PROBLEMS ........... . .
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Page 5: Important Notes - Please Read
High voltage may remain on some internal parts long after the unit has been switched off. 1.3 Power Supply Options The JVA Mb series of electric fence energizers can be powered from a range of power sources. • 12V battery •... -
Page 6: Auto-Sync
► Do not connect directly to mains – use the power supply provided. ► The JVA Mb8, Mb12 and Mb16 energizers have limited power supply options. For more information please refer to section 2.3 on page 5. ► When using a battery option, always ensure adequate ventilation is given to the battery. Lead- acid batteries may emit explosive gases while charging! ►... -
Page 7: Rechargeable Batteries
MB8, MB12, MB16 JVA AgriRange Energizers 1.6 Rechargeable Batteries if powered from a rechargeable battery, JVA Mb energizers are compatible with lead-acid batteries. SLA battery life is shortened considerably if it is a) left in a discharged state or b) exposed to very high temperatures. -
Page 8: Benefits Of Features
MB8, MB12, MB16 JVA AgriRange Energizers MB12 MB16 over discharge battery protection battery life maximization battery voltage measurement Stored joules 18 J 24 J energy output 12 J 16 J Power consumption at 12.5Vdc 0.9 A... -
Page 9: Specifications
MB8, MB12, MB16 JVA AgriRange Energizers • our patented Auto-Sync technology prevents the potentially dangerous condition of receiving a shock of more than one pulse per second. JM we’ll need to do something with this orphan bit?. • Power on demand automatically increases the power to heavy fence loads. -
Page 10: Parts Of The Energizer
MB8, MB12, MB16 JVA AgriRange Energizers PARTS OF THE ENERGIZER MB8, MB12, MB16 oN/oFF switch Status indicates fence overload or internal energizer fault (red Led) energizer on and oK indicator (green Led) High power fence connection terminal Half power fence connection terminal... -
Page 11: Fence Connectors
MB8, MB12, MB16 JVA AgriRange Energizers 3.1 Fence Connectors High Power Low Power Earth Terminal Terminal Terminal Full Voltage Operation The Green Earth Terminal (right) should be connected to suitable electric fence earth stakes. The Red Fence Terminal (left) should be connected to the live wires of the fence. -
Page 12: Energizer Led Display
MB8, MB12, MB16 JVA AgriRange Energizers 3.2 Energizer LED Display This feature is included in all units. Status red LED – This LED has multiple functions, listed below: • Flashes – slowly (once per pulse) when the load exceeds an acceptable level indicating that the fence probably has a fault. -
Page 13: Installation
MB8, MB12, MB16 JVA AgriRange Energizers 4. INSTALLATION 4.1 Location of the Energizer if possible keep the energizer in a cool and dry environment (either indoors or at least well covered) to maximize reliability. To deter any water ingress, keep the energizer upright when located outdoors. -
Page 14: Operation
4.4 on page 9. The fence and the earth voltages can be measured using an electric fence digital voltmeter, or a digital electric fence directional fault finder, such as the JVA Electric Fence Digital Directional Fault Finder. -
Page 15: All-Live Earth Return System
MB8, MB12, MB16 JVA AgriRange Energizers 5.3 All-Live Wire, Earth Return System (Fig 1) The earth return (also known as Ground Return) configuration is the most common method of configuration for electric fences, particularly smaller fence applications such as strip grazing. The fence live wire(s) are electrified and rely on the ground to complete the circuit back to the energizer earth terminal when an animal touches the fence. -
Page 16: Bi-Polar System (Fig 3)
MB8, MB12, MB16 JVA AgriRange Energizers 5.5 Bi-Polar System (Fig 3) A bi-Polar fence is a combination of both the earth return system and the fence return system. The benefits are: if either the positive or negative fence wires are loaded with a fault and have a low voltage, the other wire will not be affected by the fault and still have good voltage on it. -
Page 17: The Importance Of Insulators
Maintaining permanent fences is important, especially during the warmer months when plant growth is at its highest and after any disruptive weather events. Check the fence voltage using an electric fence voltmeter. The JVA Fault Finder will also detect faults and direct you towards them. -
Page 18: Flat Batteries
Lightning Protection Kit is installed to prevent lightning damage and possible costly repairs. 6.3 Moisture and Ants Moisture and ants should not be a significant problem for the JVA range of energizers as they are protected in a weatherproof case. However, where possible, keep the energizer protected from the weather. -
Page 19: Common Fence Problems
Short the end of your fence to earth by hammering a metal stake into the soil and connecting this to the live fence wire. Using an electric fence voltmeter or a JVA electric Fence Fault Finder, (do not use a standard multimeter.) check the voltage is at the earth terminal of the energizer. in general it should be a reading less than 300 volts (0.3kV). -
Page 20: Instructions For Installation And Connection Of Electric Fences
MB8, MB12, MB16 JVA AgriRange Energizers 8. INSTRUCTIONS FOR THE INSTALLATION AND CONNECTION OF ELECTRIC FENCES instructions for installation and connection of electric fences vary from country to country. Most are based on the International Electrical Commission (IEC) AS60335.2.76 specifications. - Page 21 MB8, MB12, MB16 JVA AgriRange Energizers The energizer earth electrode shall penetrate the ground to a depth of at least 1.2 m. Connecting leads that are run inside buildings shall be effectively insulated from the earthed structural parts of the building. This may be achieved by using insulated high voltage cable.
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Page 22: Warranty
9.1 For Assistance if you have any questions or need further assistance, or for more information on our complete range of electric fencing products, please see the JVA website at www.jva-fence.com. 9.2 Service or Repairs if service is required, package your energizer carefully and return it to the place of purchase or your nearest JVA distributor along with your proof of purchase. - Page 23 For full par culars of our ranges of e The JVA range of agricultural and security electric fence energizers are the result of a joint venture between the Australian company, Pakton Technologies and South African...
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