Transcript Slide 1
PowerLogic EM4800
multi-circuit energy meter
Simple, accurate tenant sub-metering
The PowerLogic EM4800 series meters
provide simple, reliable, revenue-grade
electricity metering.
● High density multi-circuit meter: connections for 24 CTs
● Billing-grade accuracy:
ANSI C12.20 Class 0.5 & IEC 62053-22 Class 0.5S
● Wide-range voltage-sensing inputs: 100 to 300 V ac
Optional Remote Display
● Direct connect to: 120/240 V, 120/208 V, 230/240 V, 220/380 V, 240/415 V, 277/480 V
● Low cost per meter point
● Flexible installation options: ideal for both new construction
and retrofit projects
● Multiple communication options: Ethernet, modem,
onboard web server
● Onboard memory with industry standard protocols –
Modbus TCP, FTP – providing easy integration into
monitoring software
● Rugged enclosure and maintenance-free design
Schneider Electric - Power Monitoring – Feb 2011
PowerLogic EM4800
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Applications
Ideal for multi-tenant and departmental metering
applications in commercial buildings:
● Office towers
● Condominiums
● Apartment buildings
● Shopping centers
● University dormitories and apartments
● Other multi-user environments
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Benefits
● Bill tenants accurately for energy use
● Encourage tenants to manage energy consumption
● Manage energy use to reduce operational costs and
offer more competitive lease rates
● Allocate costs to departments or processes to
expose wasteful energy practices
● Identify the source of peak demand charges
● Identify saving opportunities within your facilities
● Verify utility charges using accurate meters
● Establish “green” image and qualify for LEED ratings
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Measurement parameters
The PowerLogic EM4800 meter provides the information that building
owners need to bill tenants, manage energy use and reduce their
overall costs.
● Real energy, delivered and received (kWh)*
● Reactive energy, delivered and received (KVARh)*
● Apparent energy (kVAh)*
● Real power (kW)
● Reactive power (kVAR)
● Apparent power (kVA)
● Voltage* and current (per phase)
● Power factor
● Pulse counts*
* Measurements available for data logging
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High accuracy, multi-tenant metering
The PowerLogic EM4800 provides highly accurate energy information
so that building owners can bill tenants for their actual energy use.
● Use the EM4800 to meter every tenant, as well as shared-use loads, within a
commercial building.
● A single EM4800 can meter 24 single phase circuits or 8 three-phase circuits.
HVAC
PowerLogic EM4800:
a highly-accurate multi-tenant
energy meter, at an affordable
price.
Tenant #4
Tenant #3
Tenant #2
Tenant #1
To Tenant Billing Software
EM4800
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Common Area
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Installation options
PowerLogic EM4800 meters are ideal for both retrofit and new installations.
● Flexible installation options allow the product to be effectively used in virtually any
commercial building that requires highly accurate and cost effective energy metering
● The rugged enclosure allows the meter to be either wall mounted, or embedded within a
power distribution panel
Wall Mount application
Embedded application
PowerLogic EM4800
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Physical characteristics
Voltage sense inputs allow a
wide input range: 100 Vac to
300 Vac L-N
LCD backlit display, with
optional remote display
Standard Ethernet port and
onboard modem enable fast
and easy integration into
existing networks
Connection points for 24
current transformers (CTs).
Configure each EM4800 to
match your needs:
• 24 single CT meter points
• 12 two CT meter points
• 8 three CT meter points
Rugged enclosure for either wall mount
or installation within a power distribution
panel. Suitable for both indoor and
enclosed outdoor applications.
Schneider Electric - Power Monitoring – Feb 2011
Two digital pulse inputs to
accumulate information
from WAGES meters
Onboard memory collects up
to two years of energy use
data, while the clock ensures
accurate time-stamping
Web server allows connection
through your browser
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Flexible configuration
PowerLogic EM4800 multi-circuit meters can be configured to match the power
distribution panel that you are monitoring: configuration is user-selected and
can change as often as required.
Option 1: Configure as 24
single-phase, one-CT meters
Option 2: Configure as 12
single-phase, two-CT meters
Phase
Meter
Point
Phase
A
1
A
B
2
B
C
3
C
A
4
B
5
A
22
B
23
C
24
A
Meter
Point
Option 3: Configure as 8
three-phase, three-CT meters
Phase
Meter
Point
A
1
B
1
C
2
A
B
2
C
Each meter point can
be assigned to a
tenant or department
B
C
12
A
B
8
C
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Low cost per meter point
Power distribution panel #1
A
B
C
A
B
C
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B
C
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C
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B
C
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B
C
A
B
C
A
B
C
A
B
C
A
B
C
A
B
C
Power distribution panel #2
A
B
C
A
B
C
A
B
C
A
B
C
A
B
C
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B
C
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B
C
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B
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B
C
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B
C
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B
C
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B
C
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B
C
A
B
C
EM4800
Conduit for CT leads
and voltage connections
Example meter point: CTs installed
adjacent to a 3-phase circuit breaker;
8 meter points shown in diagram.
Schneider Electric - Power Monitoring – Feb 2011
A single PowerLogic
EM4800 multi-circuit
meter can replace up
to 8 three-phase
power meters,
resulting in significant
cost savings.
Select the loads to meter - even
if they are in different power
distribution panels. Note: the
panels must share a common
voltage reference
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PowerLogic EM4800 series meter overview
The meters are available in three models. Measured values, communication
options, features and software support are consistent for all three models.
Select the model that you need for your specific project:
EM4833 - Uses 1/3 V output CTs
The best solution for retrofit projects
● Solid core and split core CTs
available
● Extra long leads supported – up to
100 m (325 feet)
● Shorting blocks not required
● Enclosure size:
EM4880 - Uses 80 mA output CTs
Used for new installations
● Solid core, 200 A primary CT
available
● Extra long leads supported – up
to 100 m (325 feet)
● Shorting blocks recommended
● Enclosure size:
33.5 cm x 30.5 cm x 5.5 cm
13.125 in x 12 in x 2.125 in
33.5 cm x 30.5 cm x 5.5 cm
13.125 in x 12 in x 2.125 in
EM4805 - Uses 5 A output CTs
Used for retrofits and new installations
● Industry standard CTs - available in a
wide range of sizes
● Solid core and split core CTs available
● Shorting blocks required
● Enclosure size:
33.5 cm x 44 cm x 5.5 cm
13.125 in x 17 in x 2.125 in
EM4833 or EM4880
Lead lengths up to 100 m (325
feet) for 1/3 V and 80 mA CTs!
EM4800
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Installation example: EM4880 or EM4833
Commercial building floor plan
Electrical Room #1
Three-phase meter
point with 80 mA or
1/3 V CTs. A total of
8 three phase
meter points are
shown.
Conduit used to connect CT leads to
EM4800 meter. All CT leads are up to
100 m (325 feet) in total length
Schneider Electric - Power Monitoring – Feb 2011
Previously, building owners with dispersed loads would need
to install energy meters throughout their facility – but the
EM4800 provides a simpler solution:
80 mA and 1/3 V CTs support extra long lead lengths
of up to 100 m (325 feet) – you can monitor loads
throughout your facility with a single EM4800 meter!
EM4880 or EM4833
meter, installed outside
of Electrical Room,
allowing easy access
Electrical Room #2
The EM4800 can even
monitor panels on different
floors within the building
Note: the panels must
share a common voltage
reference
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Flexible communications
The EM4800 comes standard
with both an Ethernet port and
a modem so that you can
quickly connect to the meter
over your existing
communication network
Ethernet port
-Modbus TCP
-FTP
-HTTP (Webserver)
Industry standard protocols
ensure that you can easily
integrate the energy data from
the EM4800 into your tenant
billing or energy management
software
The EM4800 is fully supported in Schneider
Electric software: ION Enterprise* and
Remote Energy Monitoring (REM)
-SNTP (time sych)
EM4800
Modem
-FTP
-SNTP (time sych)
*Available: September, 2011
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Pulse inputs for WAGES metering
Two digital pulse inputs accumulate readings
from WAGES meters to give you a complete
view of your overall energy use.
Water
Air
Gas
Electricity
Steam
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EM4800
Easily accumulate
data from WAGES
meters using the 2
digital pulse inputs.
Pulse data is logged
in onboard memory.
Water meter pulse
Gas meter pulse
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Onboard data logging
● User selected data logging interval time (from 5 to 60 minutes)
● Data is stored onboard in non-volatile memory, unaffected by power outage
● Capacity up to 2.4 years at 1 hour intervals or over 200 days at 15 minute intervals
Two options to retrieve your logged data…..
Option 1: FTP File Push
Option 2: Modbus log file reads
EM4800
EM4800
Log file push
Ethernet or
Modem
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FTP
Server
Data file read
Modbus TCP/IP
Modbus
Master
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Full support from ION Enterprise software
Available: September, 2011
You can quickly and easily
integrate multiple PowerLogic
EM4800 meters into your
PowerLogic ION Enterprise
power monitoring system.
PowerLogic EM4800
plus ION Enterprise:
a powerful solution for
energy management
applications.
EM4800 EM4800
EM4800
Modbus TCP
Web Browser
EM4800
Real time values
Diagnostic Information
Use PowerLogic ION
Enterprise software to
access both real-time
values and onboard data
logs.
LAN (Ethernet TCP/IP)
ION Enterprise
EM4800
Real time values
Interval/logged values
Access the onboard web server
to view both real-time values and
valuable diagnostic information.
Schneider Electric - Power Monitoring – Feb 2011
ION Enterprise server
(Modbus Master)
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Full support from Remote Energy Monitoring
Customer Building 1
Customer Building 2
… Additional Buildings
The PowerLogic EM4800
combined with the hosted
Remote Energy Monitoring
(REM) solution provides simple
and cost effective access to
your energy use information
– from anywhere at anytime
Web Browser
REM
Building 1
Building 2
FTP
FTP
Hosted Solution
FTP log file push
REM
Database
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Internet
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Contact Schneider Electric for more detailed
information on this product, or other products,
services and solutions.
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