Nemtek Fence Meter User manual

1 Introduction
The NEMTEK Fence Meter measures the electrical condition of an electric fence.
By holding the meter against the fence wire the meter will turn on automatically
when it detects a fence voltage. The fence voltage, current and the direction of
a possible fence fault will be displayed on the LCD. The meter will automatically
turn off after a few seconds when not in use.
2 Technical Specifications
Parameter
Value
Voltage Display Range
-14kV to 14kV
Current Display Range
1A to 85A
Automatic Turn-On Voltage
<-150V or >150V*
Battery Type
2 x 1.5V AAA
Battery Life
~150 hours
Operating Temperature
-10°C to 50°C
*Measured at a pulse length of 100ms and direct earthing

3 Warnings
1. This product 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 product by a person responsible for their safety.
2. Electric fencing can be lethal. Avoid any head contact with the fence.
3. Do not attempt to use or store this product in the presence of excessive
moisture, as this may lead to electrical shock.
4. Do not attempt to measure voltages in excess of 14 kV as this may damage
the device or cause electrical shock.
5. Do not attempt to measure any other electrical outputs other than that of
electric fence energizers complying with the IEC 60335-2-76 specification.

4 Screen Layout

5 Operation
5.1 Holding the meter
•Grip the fence meter tightly in your
hand, taking care not to grip too
close to the electric fence wire,
contact strip or LCD screen.
•This meter makes use of capacitive
coupling between the user, meter
and earth and therefore, a firm
grip with sufficient skin contact will
ensure a more accurate reading.
•A more accurate measurement can
be achieved by holding on to a ground point like a ground wire, grounded
metal pole etc. with your other hand while taking a measurement.

5.2 Taking a measurement
•Place the live fence wire in the slot
of the measuring tip, making sure
there is good contact between the
fence wire and the metal strip.
•If there is a voltage pulse in
excess of 150V present on the
wire, the Fence Meter will turn on
automatically and display the fence
voltage, current and if present, the
direction of a possible fault
(see screen layout in section 5).
If the fence voltage is more than
150V, but less than 0.5kV, the
meter will turn on and show 0kV.

•If the energizer has a negative voltage output or in some instances,
where the ground fence wire is measured, the negative voltage
indicator will be displayed.
•If the current in the fence wire is less than 2A, no fault direction arrows
will be shown.
•If the Fence Meter does not detect an energizer pulse for 10 seconds,
the meter will automatically switch off.
•Measurements taken in close proximity (less than 1m) to the energizer
might not be accurate.
•If only a voltage measurement is desired, it is not necessary to place
the wire in the measuring pin slot, any contact to the metal strip will be
sufficient.

5.3 Battery Replacement
•If the battery symbol is displayed along with the measurements, the
batteries will need replacement soon.
•If only the battery symbol is displayed, the batteries need to be
replaced before any measurements can be made.
•The batteries (2 x AAA 1.5V) can be replaced by loosening the 6 screws
at the back (leave the screws on the belt clip) and opening the meter.
•Ensure the correct polarity as shown on the housing below the
batteries.

6 Finding a Fault
The two most common faults in an electric fence installation are an open-circuit
(wire break, poor connection etc.) fault or a short-circuit (insulator breakdown,
vegetation, live and ground wire touching etc.) fault. In order to facilitate the
fault-finding process, current and voltage measurements at regular points along
the fence when in a healthy condition should be recorded for comparison when a
fault occurs.
6.1 Open-circuit Fault
•Start as close as possible to where the high voltage (HV) leads from the
energizer connects to the electric fence and take a measurement on the
live wire.
•Depending on the location of the open-circuit fault, the current might
be higher than for a healthy fence.

•Take a measurement at regular intervals along the fence, while moving
away from the energizer.
•When the measurement shows a significant drop in voltage and current,
the fault should be between the current and the previous measurement
points.
•Parallel fence wires should be inspected individually following the above
process.

6.2 Short-circuit Fault
•Start as close as possible to where the high voltage (HV) leads from the
energizer connects to the electric fence and take a measurement on the
live wire.
•The fence current will be significantly higher compared to a healthy
fence.
•Take a measurement at regular intervals along the fence, while moving
away from the energizer.
•When the measurement shows a significant drop in current, the fault
should be between the current and the previous measurement points.

•When fault finding parallel fence wires, follow the wire with the highest
current reading.

7 Guarantee
The Fence Meter, manufactured by NEMTEK, is guaranteed for a period of one
year 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 used in line
with the specification as determined by NEMTEK from time to time, will execute
its function. 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.
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. Product specifications may be altered without prior
notification.

NEMTEK Contact Details
HEAD OFFICE EXPORTS EDENVALE
Tel: [phone] Tel: [phone] Tel: [phone]
Fax: [phone] Fax: [phone] Fax: [phone]
E-mail: [e-mail]
CAPE TOWN NELSPRUIT KWAZULU-NATAL
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Fax: [phone] Fax: [phone] Fax: [phone]
AUSTRALIA
Tel: [phone]
E-mail: [e-mail]
Website: www.nemtek.com
E-mail: [e-mail]
Rev A, 2020/01/21 Manufactured in South Africa