The Leviton Series 1000 and 2000 meters are self-powered; current transformer
(CT) rated electronic kilowatt-hour (kWh) meters designed for permanent connection
to an electrical service.
• Series 1000 meters are designed for 1- phase, 2-wire and 1 or 2-phase, 3-wire services, whereas Series 2000 meters are designed for 3-phase, 4-wire services.
• This guide is for use with individual Series 1000 and 2000 units.
• These meters are suitable for WYE configurations only
1.2 Meter Features
• Revenue-grade accuracy with solid-core CTs
• Use with 100mA solid core, or easy to install split core CTs
• Built in LCD that displays kWh data
• AMR compatible isolated pulse outputs
• Reverse-phase diagnostic indicator
• 5-year warranty
1.3 Meter Certifications
• UL Listed in the US and Canada
• Conforms to accuracy requirements set forth in ANSI C12.10
• Series 2000 meters are California CTEP approved with 100A and 200A solid core CTs.
1.4 Physical Description
Single Series 1000 and Series 2000 meters are available in two enclosures:
1. Industrial grade JIC steel enclosures for indoor installations shown in Figure 1
Series 1000 and Series 2000 Meters fall under UL Circuit Category III: a device for
measurements performed in the building installation. The electrical and
environmental specifications for Series 1000 and Series 2000 meters are given in
Table 1 and Table 2 below:
Series 1000 Electrical Specifications
Input Configurations1 Phase, 2 Wire (120V or 277V)1 or 2 Phase, 3 Wire (120/208V,
Supply Voltage Range (Line to
Neutral)
Maximum Input Power7VA7VA
Maximum Rated CurrentPrimary: Max Operating Current
Line Frequency50-60Hz50-60Hz
Power Factor Range0.5 to 1.0 Leading or Lagging0.5 to 1.0 Leading or Lagging
1
Accuracy
Meter Operating Temperature-30 to 60° C-30 to 60° C
Display Operating Temperature-20 to 50° C-20 to 50° C
Rated Pollution Degree
Rate Relative Humidity80%80%
Terminal Block Torque Ratings:
Voltage Terminal
CT and I/O Terminal
2
102-138V
AC
235-320VAC
+ 10%
Secondary: 0.12A
+/- 0.5% of registration @ 1.0 PF,
1% to 100% of rated current
+/- 0.75% of registration @ 0.5
PF, 1% to 100% of rated current
22
12 in-lb max
4.4 in-lb max
120/240V, or 277/480V)
102-138VAC
235-320VAC
Primary: Max Operating Current
+ 10%
Secondary: 0.12A
+/- 0.5% of registration @ 1.0 PF,
1% to 100% of rated current
+/- 0.75% of registration @ 0.5
PF, 1% to 100% of rated current
12 in-lb max
4.4 in-lb max
Table 1 - Series 1000 Electrical Specifications
1
Accuracy based on Leviton solid core current transformers (included), with 100 mA secondary output.
Meter input burden resistance at 2 Ohms
2
Pollution Degree 2: Normally only non-conductive pollution occurs. Occasionally, however, a temporary
conductivity caused by condensation must be expected.
Series 1000 and 2000 meters provide active energy measurements, which are
displayed on the LCD in 1 kWh resolution. These values are cumulative and are
cannot be reset. When configured with the energy demand option, the meters provide
instantaneous readings on the integrated LCD. These values are displayed one at a
time, for six seconds each, as follows:
• Total Active Energy, in kWh (1 kWh resolution, cumulative, non-resettable)
A dot in the LCD aligns with an arrow on the display label to differentiate between
instantaneous and peak demand. After displaying peak demand and before displaying
total energy, the meter tests the LCD by activating all segments simultaneously for
one second.
2.3.2 Resetting the Peak Demand (optional additional feature)
An additional optional feature is the Peak Demand reset. Meters configured with the
Peak Demand Reset option have an integrated key switch which is used to reset the
peak demand. A demand reset command will only be recognized during the period
when the peak demand is displayed on the LCD. In order to reset the demand, a
pulse must be generated by turning the key switch from locked position (arrow up)
to the right and then back to the original position. This back and forth transition
triggers a demand reset. The maximum transition period is one second. Multiple key
switch transitions during the peak demand display interval may be required to reset
peak demand.
The following section contains installation and wiring instructions for the Leviton Series 1000,
and Series 2000 meters in either the indoor or outdoor enclosure. If technical assistance is
required at any point during the installation, contact information can be found at the end of
this manual. Leviton is not responsible for damage to the meter caused by incorrect wiring.
3.1. Explanation of Warning Symbols
Indicates the need to consult the operation manual due to the presence of a
potential risk.
Indicates the presence of electric shock hazards. Prior to proceeding,
de-energize the circuit and consult the operation manual.
Indicates that the eq1uipment is protected throughout by double insulation.
3.2. Safety Precautions
WARNING
• Installation of electric meters requires working with possibly hazardous
voltages. These instructions are meant to be a supplement to aid trained,
qualified professionals. Failure to follow these warnings could result in
death or injury.
• TO AVOID FIRE, SHOCK, OR DEATH, turn off all power supplying the
equipment before performing any wiring operations. Use a properly rated
voltage sensing device to confirm power is off.
• Bonding is not automatic for metal conduit connections; separate bonding
is to be provided.
• Installations should be done in accordance with local codes and current
National Electric Code requirements.
• Equipment used in a manner not specified by this document impairs the
protection provided by the equipment.
• Verify the model number and electrical specifications of the device being installed
to confirm they are appropriate for the intended electrical service (see Section 2).
• Consult local codes for any possible permits or inspections required before
beginning electrical work.
• Ensure the conduit for the installation is appropriate for the intended application.
UL Type 4x conduit and conduit fittings required for outdoor applications.
• Make sure all tools to be used during installation have proper insulation ratings.
• Look at the Meter and inside the electrical panel for possible exposed wire, broken
wire, damaged components or loose connections.
3.4 List of Materials
• Series 1000 or Series 2000 meter, enclosure and associated mounting materials
• Line 1, Line 2, Line 3 and Neutral hook-up wires as needed for the electrical
service.
• Wires must be 18 AWG or larger and insulated for 600 VAC min. Meter terminals
will accept wiring up to 14 AWG.
• Current Transformers (CTs): This product is designed for use with Leviton 100mA
series of solid and split core CTs.
• Conduit and fittings as appropriate. UL Type 4X conduit and fittings must be used
for outdoor applications to maintain the rating of the installation.
3.5 Mounting the Enclosure
3.5.1 Selecting a Mounting Location
• Series 1000 and 2000 meters require a switch or circuit breaker as part of the
building installation.
• The switch or circuit breaker must be marked as the disconnecting device for
the meter.
• It is recommended that the enclosure be mounted near the disconnecting device
in an area with adequate ventilation.
• The enclosure should not be positioned in a manner that makes it difficult to
operate the disconnecting device.
• Ensure that the CT and voltage lead lengths (and conduit lengths) are capable
of reaching the enclosure from the load center.
• If a suitable mounting location near the load center cannot be found, additional
in-line fuses or circuit breaker may be required in accordance with
NEC regulations.
The Series 1000 and 2000 steel enclosure comes with a 1 1/16” knockout (3/4”
conduit) on the bottom of the enclosure, and a 7/8” knockout (1/2” conduit) on
top of the enclosure. To remove a knockout, use a flathead screwdriver (or other
rigid device) to puncture the indentations first, and then pry off and discard the
knockout.
Outdoor Enclosure
The bottom panel and lower half of the side panels work best for conduit opening
locations in outdoor single meter enclosures. Select the location that makes wire
installation easiest for the given environment. If the side panels are used, holes
should be centered approximately half an inch from the bottom of the enclosure.
Hole sizes must be appropriate to fittings, and large enough to fit all voltage and
CT wiring (4-10 18 AWG min. wires insulated for 600 V min.). Care should be
exercised to keep drill bit away from components inside the enclosure. UL Type
4X conduit and fittings must be used in order to maintain the outdoor rating
of the enclosure.
3.5.3 Mounting Procedure and Conduit Installation
1. For outdoor enclosures, attach the mounting brackets to the back of the
enclosure with the four provided screws as shown in Figure 4.
2. Fasten the enclosure to the selected surface using the provided mounting holes
(steel enclosure) or mounting brackets (plastic enclosure).
3. Verify that the enclosure is not loose and that all connections are secure.
4. Attach the conduit between enclosure and load center, routing wires as
necessary for later use.
5. Make sure the conduit fittings are aligned properly and tightened securely to
prevent moisture from entering the enclosure (outdoor applications).
TO AVOID FIRE, SHOCK OR DEATH, make sure service is disconnected
before any connections are made.
Voltage connections must be made in accordance with NEC Section 240
and all other local electrical code requirements.
1. Connect 18 AWG min., 600 V min. insulated wiring for Line voltages and Neutral
to the appropriate locations in the breaker panel, in accordance with all national
and local electrical codes.
2. Route wires through the conduit if not already done.
3. Trim the wire to the appropriate length to avoid coils of excess wiring.
4. Strip wiring to approximately .300 inches if needed and connect to the appropriate
terminals. Wires should be tightened so that they are held snuggly in place, but do
not to over-tighten, as this may compress and weaken the conductor.
TO AVOID FIRE, SHOCK OR DEATH, always open or disconnect the circuit
from the power distribution system of a building before installing or servicing
current transformers.
In accordance with NEC, CTs may not be installed in any panel board where
they exceed 75% of the wiring space of any cross-sectional area.
General Requirements:
• Splices on the CT leads must be within the meter enclosure, not inside the conduit.
Leviton CTs come with standard 48inch leads. Wire insulation should be stripped
so that the bare conductor length that connects to the meter terminal block does
not exceed 0.300 inches.
• CTs should be securely fastened such that they will not slide down to live terminals.
• Wires should be tightened so that they are held snuggly in place, but do not to
over-tighten, as this may compress and weaken the conductor.
• Current and voltage inputs must be installed ‘in phase’ for accurate readings (e.g.
CT1 on Line 1, CT2 on Line 2) Orientation is critical. Ensure that all CTs are
properly oriented with the line and load, as marked.
1. Route CT wires through the conduit if not already done.
2. Trim the wire to the appropriate length to avoid coils of excess wiring.
3. Strip wiring to approximately .300 inches and connect to the appropriate
terminals as described above.
4. With power turned off, disconnect each monitored conductor and slide on a CT,
ensuring the CT is correctly oriented as noted above.
5. Reconnect the conductors.
Failure to install CTs in the correct orientation and on the correct
phase will lead to inaccurate meter readings.
Figure 6: Leviton split core CTs
Installing Split Core CTs
1. Route CT secondary wires through conduit if not already done.
2. Trim the wire to the appropriate length to avoid coils of excess wiring.
3. Strip wiring to approximately .300 inches.
4. Connect the CT leads to the appropriate meter as described above.
5. With power to the conductors turned off, place one CT around each conductor,
ensuring that the white dot is facing the line side.
6. Current and voltage inputs must be installed ‘in phase’ for accurate readings
(e.g. CT1 on Line 1, CT2 on Line 2) Orientation is critical. Ensure that all CTs
are properly oriented with the white label facing the line side of the circuit.
Failure to install CTs in the correct orientation and on the correct
phase will lead to inaccurate meter readings.
Testing Voltage
Voltage should be tested using an AC Voltmeter to verify that the voltage
CT Reverse Phase Indicator
Series 1000 and Series 2000 meters have a red reverse phase indicator LED
Load LEDs
The load LEDs are described in section 2.3. These LEDs should be illuminating
LCD Display
The Series 1000 and 2000 display is described in Section 2.4. From this
3.9 Securing the Enclosure
In accordance with safety requirements, enclosures must be secured using the
across voltage line terminals (L1, L2, and L3 to Neutral) is not in excess of the
maximum rated voltage.
as described in section 2.3. There must be a load drawing a minimum of 1
A connected to the meter in order for the reverse phase LED to function
correctly. If this LED is on (with sufficient load), power down the voltage supply
and verify that CTs are installed correctly.
at 50% duty cycle, appropriate to the load, when the meter is connected
properly, and a constant load is applied. Without a proper load, the load LEDs
could be on or off.
description, it is possible to determine if the kWh and/or demand values
displayed on the LCD are consistent with the applied load. A load must be
applied for the kWh value to show significant changes.
provided key lock once installation is complete. The purpose of the lock is to
prevent access to live parts that pose potential safety risks. To install the lock,
slide through the provided holes on the clamp side of the enclosure and
fasten securely.
Properly installed meters with sound connections and secure conduit fittings should
not require user maintenance. If the meter is functioning abnormally, consult the FAQ /
Troubleshooting guide. If the answer cannot be found there, contact Leviton technical support.
5 TROUBLESHOOTING / FAQ
Problem
1. LCD Display not on
2. Load LED not flashing
3. Registered consumption low
4. Reverse phase LED illuminated
Solution
• Check to make sure all connections are wired
• Test the voltage being supplied to the meter
using an AC voltmeter
• With power off, remove any additional in-line
fuses and test the circuit with the appropriate test
equipment
• Verify CT connections and orientations
• Make sure there is sufficient load to draw a
significant current
• Test the voltage being supplied to the meter
using an AC voltmeter
• Check to make sure the reverse phase LED is
not on
• Even if the reverse phase light is off, doublecheck CT orientations. One CT installed in the
incorrect direction doesn’t always illuminate the
reverse phase LED
• Make sure that current and voltage connections
are in phase
• Check power connections and fuses
• Verify orientation and connection of CT wires
• Ensure that phasing is correct (CT1 on Line 1,
CT2 on Line 2)
• Verify that a load drawing more than 1 Amp is
connected to the meter