We are pleased that you chose to buy one of our products, and want you to be just
as pleased with owning it. Before installing your new Honeywell E-Mon product,
please read the information on the following pages carefully.
We believe that you will find the Honeywell E-Mon meters easy to install and to
use for monitoring and evaluating your electrical usage.
To be sure that you are 100% satisfied with your products, we provide toll-free
technical and sales support Monday through Friday, 8:00 am to 7:30 pm, EST:
(800) 334-3666. You may also reach us via email at info@emon.com.
If you have questions, we can handle them quickly and effectively with a
telephone call. Please let us try to help you BEFORE you remove your meter. And
to help us help you, we ask that you have all relevant information on hand when
you call (model or part numbers, nature of difficulty, etc.)
Be sure to forward this manual to the owner after installation is complete, so that
they may use it as a reference guide when reading the Honeywell E-Mon meter.
Thank you.
62-0398—022
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E-MON CLASS 3400 METER
TABLE OF CONTENTS
Section 1.0Introduction4
Section 2.0Internal Electronic Assemblies5
Section 2.1Main Power Board5
Section 2.2Display Board6
Section 3.0Meter Technical Specifications7
Section 4.0Safety Label Definitions and Information10
Section 5.0Precautionary/Safety Information10
Section 6.0Meter Installation11
Section 6.1Mounting the Class 3400 Meter11
Section 6.2Main Power Board Connections11
Section 6.3Phasing of Line Voltage13
Section 6.4Current Sensor Installation & Wiring14
Section 6.5Main Power & Current Sensor Wiring Diagram16
Section 6.12Connecting E-Mon Class 3400 Meters to USB Key using
RS485
Section 6.13Ethernet Communications27
Section 7.0Multiple-Load Monitoring28
Section 8.0Preventative/Scheduled Maintenance30
Section 9.0Lithium Battery Replacement30
Section 10.0E-Mon Class 3400 Meter operating Modes32
Section 11.0E-Mon Class 3400 Meter Expansion Board40
Section 11.1Expansion Board Connections41
Section 11.2Pulse Type and Valve42
Section 12.0Frequently Asked Questions43
Section 13.0Protocol Descriptions45
Section 14.0High Voltage Metering51
Section 15.0Meter Limited Warranty54
26
362-0398—02
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E-MON CLASS 3400 METER
1.0 INTRODUCTION
The Honeywell E-Mon Class 3400 Meter is a 3-element meter with
communications. The device is used to monitor electric power usage of individual
loads after the utility meter and store kW and kVAR data for automatic meter
reading. The Class 3400 meter is dual protocol capable and provides both RS485
and Ethernet communications. Installation must only be performed by qualified
personnel and in accordance with these instructions and all applicable local and
national electrical codes. Honeywell E-Mon and its representatives assume no
responsibility for damages or injury resulting from the improper installation of
this meter.
Verify the input voltage rating and configuration on the unit panel label to ensure
that it is suitable for the intended electrical service. 3400 meters labeled for 120/
208V service MUST NOT be installed on service feeds of 277/480 volts or 347/
600 and vice versa.
Meter Labeled:Works On:
120V120V, 1 Phase
120/240V120/240V, 1 Phase
277V277V, 1 Phase
208V208V, 3 Phase
240V240V, 3 Phase
400V400V, 380V, 415V, 3 Phase
480V480V, 3 Phase
600V600V, 3 Phase
Verify that the E-Mon Class 3400 Meter’s current sensors are sized suitably for
the load to be monitored. Compare the color of the arrows on the current sensors
to the chart below to confirm the correct current sensor is being used.
Sensor Arrow Color CodeSensor Rating
Brown100 A
Red200 A
Yellow400 A
Black800 A
Blue1600 A
White/Black 3200 A
62-0398—024
Page 5
E-MON CLASS 3400 METER
CAUTION
WARNING
MAIN POWER
BOARD
DISPLAY
BOARD
M33315
Internal circuit card components are extremely sensitive to
electrostatic discharge. Prior to handling or touching internal circuitry,
discharge any static buildup on your person. To discharge yourself,
touch a grounded metal object such as conduit or an earth grounded
metal enclosure.
Use of this instrument, the Honeywell E-Mon Class 3400, in a manner
inconsistent with this manual or not specified by the manufacturer in
writing, can cause permanent damage to the unit and/or serious injury
to the operator. The protection and safety features provided by this
equipment may become impaired or otherwise compromised.
NOTE: If any trouble arises during installation or functional verification opera-
tions, do not immediately remove unit. Before removing the unit, contact
Honeywell E-Mon’s technical support department at (888) 516-9347.
Honeywell E-Mon’s technical department will assist you in detailed troubleshooting of the Class 3400 installation and assist you in getting the
unit operating correctly.
2.0 INTERNAL ELECTRONIC ASSEMBLIES
The units are comprised of two major subassembly boards, the main power board
and the display board. Both circuit boards are mounted inside a NEMA 4X
enclosure.
Fig. 1. Internal Electronic Assemblies.
562-0398—02
Page 6
E-MON CLASS 3400 METER
M33271
J3
J4
TB1
POSITIONS 1-4
MAIN POWER INPUT
TB1 POSITIONS 6-10
CURRENT SENSOR
INPUTS
ETHERNET
CONNECTION
RS-485
CONNECTION
PHASE OUTPUT
2.1 Main Power Board
Connections to this board include the MAIN Power Input and current sensors.The
MAIN Power Input terminals are positions one through four on the four position
screw terminal block, TB1. These terminals are covered with a protective shield
for safety purposes. The current sensor assemblies interface to the TB1 positions
6 thru 10; care must be exercised to ensure that each current sensor is connected
to the correct terminals. One three terminal screw connector (RS485) is for RS485 communications. One two terminal screw connection (output) is for a pulse
output. One RJ-45 jack (J8) is provided for 10/100-baseT Ethernet.
Fig. 2. Main Power Board Connections.
2.1 Main Power Board
When ordered, header J3 is 20 positions for use with an I/O board with up to two
relays, two pulse inputs and two pulse out puts. Meters ordered with the X
(Expanded Feature) package have the I/O board pre installed.
62-0398—026
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E-MON CLASS 3400 METER
2.2 Display Board
The display board connects to the main power board via a flex ribbon cable and
the board mounts on the inside of the housing door.No additional connections to
the display board are required. The display board’s LCD readout indicates the
metered values as well as errors associated with the E-Mon Class 3400 Meters,
such as phase loss or sensor error conditions.
-X- (EXPANDED FEATURE PACKAGE), KIT (Split Core),
SCS (Solid-Core), -SP (Single or Two Phase - 2 element)
Amperage
Enclosure
Communication
Protocol
Current
Sensor/Option
Current
Sensor/Option
Current
Sensor/Option
Ordering Information: Define brand, class, input voltage, current sensor rating,
enclosure, protocols/options, expanded feature package, and sensor type in the
format A-BB-CCC-DDDD-E-FF-G-HHH, where:
A = Brand: E for Honeywell E-Mon
BB = designates Class: 3200 (32), 3400 (34), or 5000 (50) meter
CCC = input voltage: (208, 480, 600, 120 volt for high voltage applications only)
DDDD = current sensor rating: (100, 200, 400, 800, 1600, 3200, 25HV)
E = enclosure: J = metal (type 1), R = non-metallic (type 4X)
FF= protocol option:
G = Expanded Feature Package: package = X, no package = “blank”
SP = Single or Two Phase
HHH= Sensor Type: kit=split-core, scs= solid-core, non-supplied blank”
62-0398—028
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E-MON CLASS 3400 METER
3.0 METER TECHNICAL SPECIFICATIONS
(CONTINUED)
Input Voltage
3-wire (Delta) Or 4-wire (Wye)
Configuration
Mains Voltage
Up To 600 VAC RMS Available
Input
Input Power6 VA Maximum Rating
Current Sensor
Up To 3200 Amps RMS AC Available
Rating
Power Factor 0.5 Leading Or Lagging
Line Frequency50-60 Hz
Metering AccuracyANSI C12.20
Voltage Operating
+/-10% Of Rated Load
Range
Temperature Range -20 C To +50 C (Standard indoor enclosure):
Relative Humidity
0-95% Non-condensing
Range
Altitude2000 Meters Maximum
Voltage Overload+25% Continuously: +100% For 20 Cycles
Current Sensor
100% For 1 Minute Without Damaging Meter
Overload
Pollution DegreeDegree 2 In Accordance With IEC 664
Installation
Category III
(Overvoltage)
Category
Measurement
Category III
Category
Enclosure Material UL Type 1 JIC Steel or Type 4X Plastic Rain Tight
Battery CellDescription:Non-rechargeable cell used
Cable: UL-listed stranded
conductors, 22-26 AWG.
Input/Output Voltage: Ground-isolated +/-5.4VDC
Cable Connector: Screw terminal termination
Circuit Input Isolation:5.3kVAC
Max Cable Distance:4000 feet
Max Network Nodes:64 cabling nodes (including
master)
Baud Rate:9600
Cable:UL-Listed CAT-5e cable, 8-
conductor, stranded 24 AWG
Cable Connector:RJ-45 termination
protocol:10/100 base T
Cable Distance:450 feet
Contact Closure:Set by user
Contact Rating:28Vdc@10A; 240VAC@10A
Mating Connector: Weidmuller PN 1526510000
Isolation Voltage:1.5K VAC for 1 minute
Manufacturer:Littlefuse
Mfg. Part No:KLDR.100
Rating:100mA, time-delay, 600VAC
cartridge fuse
for memory retention
Manufacturer:Panasonic
Mfg Part No:CR2032
Working Voltage:3 Vdc
Current Capacity:225 mAHr
Electrolyte:Manganese Dioxide Lithium
62-0398—0210
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E-MON CLASS 3400 METER
4.0 SAFETY LABEL DEFINITIONS AND
INFORMATION
The E-Mon Class 3400 Meter may contain one or more of the following labels.
Operator(s) should familiarize themselves with the meaning of each label to
minimize risk.
FCC Notice
This equipment has been tested and found to comply with the limits for a Class B
digital device, pursuant to part 15 of the FCC Rules. These limits are designed to
provide reasonable protection against harmful interference in a residential
installation. This equipment generates, uses and can radiate radio frequency
energy and, if not installed there is no guarantee that interference will not occur
in a particular installation. If this equipment does cause harmful interference to
radio or television reception, which can be determined by turning the equipment
off and on, the user is encouraged to try to correct the interference by one or more
of the following measures:
—Reorient or relocate the receiving antenna.
—Increase the separation between the equipment and receiver
—Connect the equipment into an outlet on a circuit different from that to
which the receiver is connected.
—Consult the dealer or an experienced radio/TV technician for help.
Standards Compliance:
BACnet MS/TP and IP protocol is BTL listed.
LonWorks TP/FT-10 protocol is LonMark® certified.
The presence of this label is a cautionary indicator identifying a
danger risk. The manual should be consulted prior to proceeding.
The presence of this label indicates an electrical shock hazard
exists in the location or area where the label is placed. Prior to
proceeding, the MAINS power must be disconnected and the
manual consulted for safety information.
1162-0398—02
Page 12
E-MON CLASS 3400 METER
CAUTION
WARNING
WARNING
WARNING
5.0 PRECAUTIONARY AND SAFETY
INFORMATION
Internal circuit card components are extremely sensitive to
electrostatic discharge. Be careful not to touch internal circuitry prior
to discharging any static buildup on your person. To discharge yourself,
touch a grounded metal object such as conduit or an earth-grounded
metal enclosure.
High voltages present on main PCB terminal block TB1 screw
terminals. Risk of serious injury and/or electrical shock exists. Prior to
performing any wiring operations, review all contents of the user
manual and de-energize the MAINS power switch. Only qualified
personnel should perform installation wiring. Installation wiring must
comply with all local and national electrical codes.
Failure to ground the enclosure creates a possible shock hazard. Do not
operate the E-Mon Class 3400 Meter without a protective earth wire
attached securely to the PE terminal screw. After installing protective
earth wiring, secure the screw tightly (7 N-m torque.)
NEVER open front panel of unit while unit has MAINS power applied.
Failure to comply can increase the risk of serious injury and/or
electrical shock.
62-0398—0212
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E-MON CLASS 3400 METER
6.0 METER INSTALLATION
6.1 Mounting the E-Mon Class 3400 Meter
6-35/64
(166)
3-25/64
(86)
6-35/64 (166)
3-17/64 (83)
1-5/8
(41)
Ø 1-3/32 (28) THROUGH
NEAR SIDE ONLY
5/8 (16)
7-51/64
(198)
M34684
Use appropriately sized mounting hardware to fasten the meter enclosure to the
selected mounting surface. The four housing mounting holes are centered 8.75”
H x 4” W for the CL3400.
NOTE: Meters supplied in plastic NEMA 4X enclosures and NEMA JIC Steel
Enclosures (UL Type 1) enclosures must be installed indoors.
6.2 Main Power Board Connections
1. Installing a temporary ground for ESD protection:
With all circuits de-energized, connect a temporary protective earth ground
connection for ESD protection. Prior to performing any unit wiring, be sure
to discharge any static on your person.
2. Installing the E-Mon Class 3400 Meter protective earth ground:
Connect an earth ground wire to the E-Mon Class 3400 Meter protective
earth ground lug with a torque of 7 N-m.
1362-0398—02
Page 14
E-MON CLASS 3400 METER
WARNING
Failure to attach the protective earth ground wire securely to the meter
creates a potential shock hazard. Do not operate the meter without a
protective earth ground connection securely installed.
3. Wire Entry:
E-Mon Class 3400 Meters are supplied with two 3/4” conduit K.O.s on the
bottom of the 4X enclosure for all wiring. The Type1 enclosures are supplied
with three 3/4” conduit K.O.s.
Route the appropriate cabling to and through the respective enclosure
opening.
After installing the conduit fitting and conduit, verify that each conduit slip
nut is securely tightened to its respective conduit fitting. Any unused openings must be sealed with a UL rated plugging device suitable for the rating
of the enclosure.
4. Unit MAINS Wiring:
The first four positions of terminal block TB1, located at the bottom left corner of the main power board, are clearly labeled Phase A, B, C, N (neutral).
Earth Ground MUST be connected to the PCB mounting screw in the lower
right corner.
Connect the NEUTRAL wire to the appropriate terminal block position.
Fig. 4. Terminal Block TB1.
NOTE: For 3-wire delta-type applications, do NOT connect the neutral wire.
Remove the terminal block screw for this position.
a. Connect the NEUTRAL wire to the appropriate terminal block position.
b. Earth Ground: Connect the Earth Ground to the PCB mounting screw in
the lower right corner.
62-0398—0214
Page 15
E-MON CLASS 3400 METER
c. External Switch Mechanism/In-Line Fuse Installation
To ensure a safe installation, the E-Mon Class 3400 Meter requires an
external switch mechanism, such as a circuit breaker, be installed on the
meter’s MAINS input wiring. The switch mechanism must be installed in
close proximity to the meter and easily reachable for the operator. This
device must also be marked as the disconnecting device for the Class
3400 meter. Install 1/10 Amp Slow Activation in-line fuses with the suitable voltage rating for each conductor phase at the MAINS input to the
meter. The fuses must be labeled to indicate voltage and current rating
as well as element characteristics.The fuse element must be slow activating type.
d. Connect the three AC main power wires (Phases A, B and C) to their
respective positions as labeled on terminal block TB1 and tighten to 7
in-lb. After all conductors are connected to each of their respective terminal block positions and tightened down, verify that each terminal
block screw is securely fastened by gently tugging on each conductor.
NOTE: On Single phase (order “-SP” option) connections: Connect two
AC main power wires to phases A and B - Connect jumper from B to C factory installed option. Verify that no conductor wires are frayed or
shorting to adjacent terminal block positions.
e. Turn ON the AC main power input. The meter display will light up and
scroll through 7 displays. Each display is visible for 5 seconds. Display
screens are as follows:
Screen 1 - Total kilowatt-hours (kWh) consumed
Screen 2 - Peak demand (kW) with date & time stamp
Screen 3 - Actual load (kW)
Screen 4 - Average current (amps) per phase
Screen 5 - Average voltage (volts) per phase
Screen 6 - Average voltage phase to phase
Screen 7 - Power factor (PF) per phase
1562-0398—02
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E-MON CLASS 3400 METER
6.2 Main Power Board Connections (continued)
f.Verify the voltage readings on Screen 5 using an AC voltmeter. Typical
readings shown below are measured phase to neutral for 4 wire and
phase to phase for 3 wire. Readings should be +/- 10% of nominal.
NOTE: Meters are powered by phases A and B. The displayed voltages will be the
measured AC voltage between phases.
120 VAC (L-N)108 to 132 VAC
277 VAC (L-N)249 to 305 VAC
6.3 Phasing of Line Voltage
The 3-phase AC power input or single-phase option must be in proper phase
sequence. If the sequence is incorrect or a phase is missing, there will be a
message on the meter’s display: “PH Sequence Error” or “PH Missing:.” (Refer to
the section on Line Voltage Diagnostics if this message is present.) When the line
voltage is connected correctly, the meter’s display will be blank (no message.)
Wait for the meter display to scroll to the voltage display. Verify that the meter
reads correct voltages on all three phases. Repeat Step F.
Once the meter displays the correct line voltages and there are no error
messages, you are ready to connect the current sensors to the meter. Before
continuing with the installation, verify that the six screens display as follows:
Screen 1 (kWh): Should read 0.0 kWh; if not, should be reset.
Screen 2 (kW Peak Demand):kW peak should read 0.0 kW. There will not
be a date/time stamp yet. If there is a kW
peak recorded, it should be reset later
Screen 3 (kW Load): Should read 0.0 kW load.
Screen 4 (Amps per Phase): There should be 0.0 on all three phases.
Or in the SP option - 0.0 in A and B phases.
Screen 5 (Average AC Volts): See Step F.
Screen 6 (Average AC Volts):See Step F.
Screen 7 (Power Factor): There should be 0.0 PF on all three phases.
Or in the SP option - 0.0 in A and B phases.
NOTE: The meter will be reset later via the software during “startup” procedures.
62-0398—0216
Page 17
E-MON CLASS 3400 METER
M33213
LOAD
SOURCE
6.4 Current Sensor Installation & Wiring
Once the AC voltages have been confirmed to be within acceptable limits, you are
ready to install the current sensors. TB1, positions 5 and 6 are the inputs for
Phase A, TB1 positions 7 and 8 are the inputs for Phase B and TB1 positions 9
and 10 are the Phase C inputs.
The Single-Phase option use TB1 pos 5&6 are A - TB1 pos 7&8 are B phase factory installed jumper wire on positions 9&10. Factory installed jumper should
not be removed.
The E-Mon Class 3400 Meter can be used with two types of 0-2V current sensors.
1. Split-core current sensor. This sensor opens so that it can be attached
around the circuit being monitored without interrupting power. Unless otherwise specified, all Class 3400 meters are supplied with this sensor type.
2. Solid-core current sensor. This sensor does not open and requires the mon-
itored conductor to be removed from the circuit to install the current sensor.
This type is only supplied when specified at time of order.
6.4.1 Installing the Split-Core Current Sensor Assembly
1. Each phase being monitored will require one two-piece current sensor
assembly. Open the two-piece current sensor assembly by releasing the
nylon clamp using a flathead screwdriver.
Fig. 5. Split Core Sensor.
2. Reassemble the current sensor assembly around the conductor(s) to be
monitored. Ensure the current sensor halves marked “Load” are both facing
the load side of the conductor. The colored arrow will be on the source side
of the conductor being monitored and MUST be pointed in a clockwise
direction around the conductor being monitored. Tighten the nylon clamp
to complete the assembly.
Fig. 6. Split Core Sensor.
1762-0398—02
Page 18
E-MON CLASS 3400 METER
IMPORTANT:
When looking from the source side of the conductor(s) being monitored,
you should see the arrow on the current sensor assembly. The arrow
should be pointing in a clockwise direction around the conductor(s) being
monitored. If the arrow is not positioned on the source side, inaccurate
readings will result.
6.4.2 Current Sensor Wiring
Once the current sensors are installed onto their appropriate phase conductors,
you can begin terminating the current sensors onto the E-Mon Class 3400 Meter
main board. The current sensors can be extended up to 500 feet for remote
monitoring applications. To extend the length of the wires, use #22 AWG twistedpair wire with one white and one black wire.
The easiest way to connect the current sensors is to use the meter’s built-in
current sensor diagnostics. To do this, there must be at least 1% of the meter’s
current rating (amps) flowing in each of the conductors being monitored. The EMon Class 3400 Meter’s diagnostic program will provide data to ensure that the
current sensor installation is done properly.
The current sensor connection points are located at the bottom right of the main
power board. These are terminals 5 through 10 of terminal block TB1. Each
sensor connects to two terminals one labeled “Black” and the other “White.”
Current sensors should be connected to the meter one at a time and verified
using the current sensor diagnostic program.
Connect one of the current sensors to TB1 terminals 5 and 6 (Phase A). Wait 5
seconds and look at the meter display.
If the meter displays an error message (see below), remove the wires from
terminals 5 and 6 and install them on terminals 7 and 8 (Phase B). if an error
message occurs with the sensor attached to terminals 7 and 8, try again on
terminals 9 and 10 (Phase C).
The “CT Error:“msage will disappear when the current sensor is connected to the
correct terminals (phase).
Error Messages: CT ERROR: A
CT ERROR: A B
CT ERROR: A C
NOTE: The Single-Phase option will only display errors for A and B.
Refer to the section on Current Sensor Diagnostics for assistance in
troubleshooting these errors.
6.4.3 Main Power
After the meter circuit wiring has been examined for correctness, power may be
applied to the circuit board. There are three LEDs located in the upper right
corner of the Meter Board labeled BEAT, STATUS and LOAD. The BEAT and
STATUS LEDs will blink once per second when the meter is operating normally,
62-0398—0218
Page 19
E-MON CLASS 3400 METER
twice per second if there is a problem.If the monitored circuit is under load the
LOAD LED will actively blink. A heavy load will cause the LED to blink faster than
a light load. Very light loads will result in an extended blink time.
1962-0398—02
Page 20
E-MON CLASS 3400 METER
LINE VOLTAGE CURRENT SENSORS
ØA
ØB
ØC
W B W B W B
A B N
LOAD SOURCE
A
N
B
Ø
Ø
M34842
TERMINAL BLOCK LOCATED INSIDE METER
RECOMMENDED FUSES OR CIRCUIT BREAKER PER THE NATIONAL
ELECTRICAL CODE (METER LOAD 6VA.)
CURRENT SENSORS INSTALLED ACCORDING TO INSTRUCTIONS.
INSTALL JUMPER WIRES.
1
2
3
1
1
3
2
2
ØC
3
6.5 Main Power & Current Sensor Wiring Diagram
3-PHASE INSTALLATION DIAGRAM
NOTES:
LINE VOLTAGE CONNECTIONS: #14-22 AWG
SENSOR CONNECTIONS: W = WHITE LEAD B = BLACK LEAD
NEUTRAL NOT USED IN DELTA SYSTEM.
LITTLEFUSE PART NUMBER KLDR.100.
1/10A 600 VAC INLINE FUSE PER CONDUCTOR. LITTLEFUSE PART
Following is a list of diagnostic messages that may appear on the meter display.
DIAGNOSTIC MESSAGES SHOULD NOT BE ON CONTINUOUSLY WHEN THE
METER IS INSTALLED PROPERLY AND IS IN WORKING ORDER.
6.6.1 Line Voltage Diagnostics
The diagnostics program detects line voltage faults by displaying one of two
messages:
PH Missing: B C or Phase sequence error.
PH Missing: B C: Indicates that the line voltage is missing on Phase B and/or
Phase C. This message will appear whenever the power on either Phase B or
Phase C is off. Screen 5 (Voltage per Phase) will also indicate a loss of line voltage.
Phase sequence error: Indicates that the 1-phase or the 3-phase line voltage is
not hooked up in the proper phase sequence. This message should never be seen
continuously on the display during normal operation. The meter will not display
correct electrical data in this condition. The phase sequence problem must be
remedied in order for the meter to work properly.
2162-0398—02
Page 22
E-MON CLASS 3400 METER
6.6.2 Current Sensor Diagnostics
The load current must be at least 1% of the meter’s rated load in order to use the
diagnostic function. Current sensor diagnostics can detect:
1. Reversed current sensors
2. Incorrect phase correspondence
3. Unusually low power factor (0.642 or lower)
CT Error: (ABC) is used to detect the swapping of current sensor phases. This
message could (in some rare cases) indicate a low (<65%) power factor condition.
This message may appear intermittently due to changes in line conditions. It
should not be on continuously. (See Section 6.4.1.)
NOTE: If you have connected the current sensor to all three terminals and the
error message is still appearing, reverse the black and white wires and
repeat the previous steps until the correct connection is found.
If the CT Error: message disappears, you have found the correct sensor
connection; however, the current sensor was not installed properly around the
conductor, or the sensor wires were extended and not spliced together correctly.
Correct the sensor installation, reconnect the black wire to the black terminal and
the white wire to the white terminal on the plug and reinstall the plug into the
correct phase terminal for that current sensor. The error message should
disappear and the current sensor is now installed properly.
If the CT Error: message does not disappear at any time while trying all 3 inputs
both ways, check the AC voltage input from the current sensor between the black
and white wires using an AC voltmeter. It will read approximately zero volts
indicating that the load current is very small (or zero) or the current sensors are
not secured properly (tight connection between core halves or lead splices not
secure.)
Once the first current sensor is connected properly and the error message
disappears, repeat the previous procedure for the remaining two current sensors.
When all error messages have disappeared and all sensors are installed correctly,
the meter is operational.
62-0398—0222
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E-MON CLASS 3400 METER
RS-485
TERMINAL
M33274
6.7 Honeywell E-Mon Energy RS-485 Wiring
RS-485 communication allows a computer or modem to communicate with one
or more E-Mon Class 3400 Meters. You can connect as many as 52 meters along
a 4000 foot RS-485 cable run. Class 3400 Smart meters are available with your
choice of communication options: Honeywell E-Mon Energy (EZ7) standard,
Modbus, BACnet.
There are three communication protocols available through the E-Mon Class
3400 RS-485 connection. They are EZ7, Modbus RTU, and BACnet MS/TP. The
protocol is chosen when ordering the E-Mon Class 3400 Meter. A second protocol
is available through the Ethernet port. The Ethernet protocol is also chosen when
the meter is ordered. See ordering information for the available choices.
Daisy-Chain Method
This is the simplest method for connecting meters together.
M34370
Fig. 9. Daisy-chain Configuration.
1. Connect the +(high) terminal of PORT 1 of each 3400 meter together so that
the + terminals on all meters are linked, + to + to +...
2. Connect the -(low) terminal of PORT 1 of each 3400 meter together so that
the - terminals on all meters are linked, - to -to ...
3. Connect the GND terminals of PORT 1 to meter 1 ONLY. The GND terminals
should not be linked to each meter.
Fig. 10. RS-485 Terminal.
2362-0398—02
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E-MON CLASS 3400 METER
6.7 Honeywell E-Mon Energy RS-485 Wiring
(continued)
After performing these steps, all of the meters will be connected in a daisy chain
configuration. This network of meters can then be connected to the RS-485
network and communication can be established.
Internal Modem (if ordered as option)
An optional internal modem inside one meter will communicate with the others
via the RS-485 network. Simply connect one of the two telephone jacks on the
modem to the telephone line to complete the installation.
Local Computer
A local computer installed in the building can communicate with the RS-485
network. The computer must be connected to an RS-232 key. The RS-232 key is
then connected to an available RS-485 jack in the meter using an RJ-11 cable.
NOTE: Don’t confuse the modem’s telephone jacks with the RS-485 jacks!!!
NOTE: When using one meter with an internal modem, only the telephone line is
connected. RS-485 is not needed.
6.8 RS-232 Communications
6.8.1 Hard wired System using the RS-232
Communication Key
The RS-232 communications key allows you to connect Class 3400 meters to a
personal computer that has the Honeywell E-Mon Energy™ software installed.
The computer communicates with the meters through the RS-232 key.
The RS-232 key must be located within 15 feet of the host computer.
62-0398—0224
Page 25
E-MON CLASS 3400 METER
CHANNEL 2
~
~
~
~
CHANNEL 3
UP TO 4000
FEET TOTAL
RS-232
KEY*
RS-232 SERIAL
PORT COM1
OR COM2
UP TO 52
CLASS 3400
METERS
M33318
UP TO 4000
FEET TOTAL
UP TO 52
CLASS 3400
METERS
CHANNEL 1
AC ADAPTER
PC
15 FEET MAX
6.8.1 Hard Wired System using the RS-232
Communication Key (continued)
Fig. 11. RS-232 Configuration.
6.8.2 Connecting the RS-232 Key to the Computer
The RS-232 key is supplied with:
a. (1) 8-conductor cable fitted with RJ-45 plugs
b. (1) DB-9 serial COM port adapter
c. (1) AC adapter that converts 120VAC to 9VDC for powering the RS-232
key
Connection Steps:
1. Connect the 8-conductor cable to the left-side jack (labeled “RS232”) on
the rear panel of the RS-232 key.
2. Connect the appropriate COM port adapter (DB-9) to the serial port on the
back of the computer. Plug the 8-conductor cable from the RS-232 key into
the COM port adapter.
3. Connect the provided AC adapter into the rear panel input on the RS- 232
NOTE: When the Honeywell E-Mon Energy™ software is accessed on the com-
key. Plug the adapter into a 120VAC outlet. On the front panel of the RS-232
key, two LEDs (POWER ON and AC ON) will light up.
puter, a third LED (RS232 READY) will turn on. This indicator will light up
as soon as the Honeywell E-Mon Energy software is booted up and the
correct COM port is set up via the settings provided in the software’s
Locations menu.
2562-0398—02
Page 26
E-MON CLASS 3400 METER
6.8.3 Connecting E-Mon Class 3400 Meters to the RS-232
Key using RS-485
On the rear panel of the RS-232 key, there are three jacks labeled as channels A, B
and C. These are RS-485 serial communications ports used to connect the
meters. Each of these channels can be connected to as many as 64 individual
meters over a total cable distance of 4,000 feet. The channels are independent
and must not be connected to each other.
*Do not use any pre-made telephone cables.
1. Plug the 4-wire RJ-11 cable/plug assembly into Channel A (or B, or C) on
the RS-232 key. Connect the other end of this cable to the meter via the RS485 port, at the bottom right of the Class 3400 meter main power board.
“DATA Link” supplied with each RS-232 key should be utilized to connect
key to meters. Additional “DATA Link” terminal blocks can be purchased as
necessary.
NOTE: The total combined cable length must not be more than 4000 feet.
2. Each meter has one yellow (TX) and one green (RX) LED located on the right
side of meter board just below the ribbon cable. If the system is properly
wired, these two LEDs will be OFF. These LEDs will flash when the computer
and meter are communicating.
Local Computer
A local computer installed in the building can communicate with the RS-485
network utilizing Honeywell’s RS-232 conversion key. The RS-232 key is
connected to the RS-485 terminals in the closest meter using a cable with an RJ11 plug terminating the end that is plugged into the key and is open wiring on the
other end for attachment to the meter’s 3-screw RS-485 terminal block.
GND (GREEN)
HIGH (BLACK)
LOW (RED)
Fig. 12. RS-485 Wiring.
62-0398—0226
1 - NC
2 - GND
3 - HIGH
4 - LOW
2 3 4
FRONT VIEW
RJ−11
PLUG
M33196
Page 27
E-MON CLASS 3400 METER
CHANNEL 2
~
~
~
~
CHANNEL 3
UP TO 4000
FEET TOTAL
RS-232
KEY RM
RS-232 SERIAL
PORT COM1
THROUGH COM3
MAXIMUM 15 FEET
UP TO 52
CLASS 3400
METERS PER
CHANNEL
M33319
UP TO 4000
FEET TOTAL
UP TO 52
CLASS 3400
METERS PER
CHANNEL
CHANNEL 1
AC ADAPTER
PC OR WINDOWS
COMPATIBLE
LOCAL
MODEM
~
~
TELEPHONE
LINK
6.9 Modem Wiring
Fig. 13. Modem Configuration.
6.9.1 Built-In Modem (RS-232 KEY RM)
The RS-232 key with built-in modem connects the entire RS-485 network of EMon Class 3400 Meters to a telephone line.
** Refer to Section 6.7 for RS-485 network connections.
On the back panel of the RS-232 key/modem, the left jack (RS232) is not used in
most cases since there is no local host computer.
The two jacks at the top center of the rear panel on the RS-232 key/modem are
for connecting the phone line. Connect either one of these two jacks to the
telephone line.
IMPORTANT:
The telephone line should be dedicated exclusively to the automatic meter
reading system. Never connect to a telephone line used by other modems
or fax machines. If there are telephones connected to this phone line, the
proprietor must be aware that all phones must be on “hook” in order for
the modem to work. A dedicated phone line is suggested for system reliability.
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E-MON CLASS 3400 METER
6.9.2 External Modem
1. All meters should be connected to the RS-232 key as described in 6.8.2.
2. DISCONNECT POWER TO THE RS-232 KEY. Remove the cover by removing
the 2 screws from the bottom of the enclosure.
3. On the circuit board, locate the blue jumpers J7 (MODEM) and J8 (ex-
MODEM). If these jumpers are set in the DIRECT position, you must move
the jumpers so they are set in the MODEM position. Replace the cover and
secure the enclosure.
4. Connect the RS-232 key to the external modem using the supplied 8-con-
ductor flat modular cable.
5. Connect the 9VDC adapter to the power input on the back of the RS-232 key
and plug it into a 120VAC outlet.
IMPORTANT:
The modem should use a phone line that is dedicated exclusively to the
AMR system. Do not use a phone line that is shared by another modem or
fax machine.
6.9.3 Baud Rate Selection
The communication baud rate is selected by means of DIP switch S2 positions 3
and 4 on the circuit board. There are four (4) selections: 9600 (factory default),
19200, 38400, and 76800.
1. Select 9600 when using the Class 3400 meter with a modem.
2. The baud rate on the meter must always match the baud rate selected in the
Honeywell E-Mon Energy software; otherwise, communications will not
work.
3. After a baud rate change, press CPU Reset to register the change.
4. All meters in the daisy-chain circuit must be set at the same baud rate.
5. The DIP switch is located above the RS-485 terminals.
NOTE: USE ONLY POSITIONS 3 AND 4 - DO NOT CHANGE ANY OTHER
POINTS.
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Page 29
E-MON CLASS 3400 METER
M33277
3 4 BAUD RATE
ON ON 9600
OFF ON 19200
ON OFF 38400
OFF OFF 78600
Fig. 14. Baud Rate Selection.
6. Using other than 9600 BAUD will reduce the maximum cable length
allowed for communication.
2962-0398—02
Page 30
E-MON CLASS 3400 METER
RS-485
TERMINAL
6.10 Modbus RTU Wiring
The E-Mon Class 3400 Modbus meter communicates with building automation
equipment over a 2-wire (3-conductor) RS-485 network using Modbus RTU
protocol. The meters are networked in a daisy-chain configuration (Section 6.7)
with BELDEN 1120A cable or equivalent. The cable rating of 600V allows the RS485 network to be connected to 480-volt meters. Up to 52 meters can be installed
on a network string. The maximum combined length of all daisy-chained cables
must not exceed 4000 feet.
The meter-to-network connection is through the 3-screw terminal which is
located on the Main Power Board of the meter.
Fig. 15. Modbus RTU Wiring.
The meter is shipped with a Modbus ID number of 01. This must be changed if the
network has more than one meter installed. The change must be done before the
meter is introduced into the network. The meter can be numbered from 1 to 247.
There can be no duplicate numbers on a network, so caution must be taken when
assigning a meter ID number prior to its installation on the RS-485 network.
SEE SECTIONS 10 AND 11 FOR INSTRUCTIONS ON CHANGING I.D. AND IP
ADDRESSES.
62-0398—0230
Page 31
E-MON CLASS 3400 METER
PC WITH USB
USB KEY
M34372
UP TO 52, CLASS 3200
METERS, ON RS485
CABLING
UP TO 4000 FEET
TOTAL RS485 CABLE
6.11 BACnet MS/TP Wiring
BACnet MS/TP wiring is the same as Modbus and EZ7 wiring. See Sections 10
and 11 for instructions on changing I.D. and IP addresses.
6.12 Connecting Class 3400 Meters to the USB
Key Using RS485
The USB Key plugs into the PC’s USB port and provides a termination point for
the RS485 wiring from the meters. Up to 52 meters can be “Daisy chained” with
up to 4000 feet total RS485 wiring. The USB Key is labeled for “plus (+)”, “minus ()“, and ground and the wiring must match the same positions on the meters. If
more than 52 meters are to be monitored, additional USB Keys can be utilized to
connect them to the PC.
Fig. 16. Connecting Class 3400 Meters to the USB Key using RS485.
3162-0398—02
Page 32
E-MON CLASS 3400 METER
EMS OR WEBs
CONTROLLER
CONNECTION VIA
DAISY CHAIN RS-485
M34371
6.13 Ethernet Communications
Ethernet/IP communications connections are provided through an RJ-45
connector(J8) in the lower right corner of the main power board. This port can be
connected directly to a network port of a PC using a Cat. 5e crossover cable.
Two LEDs are provided directly above the connector. The LINK LED is yellow and
when lit, indicates ethernet connectivity. The ACT led is green and when lit,
indicates communication activity.
The communication protocol for the Ethernet port is selected when ordering the
meter. The available choices are EZ7, Modbus TCP/IP and BACnet IP. See the
ordering information for the available choices in combination with the RS-485
output.
E- Mon Class 3400 Meters can be tied into a local Ethernet network individually.
Multiple RS-485 meters to Ethernet requires optional “EKME” device. Each
device that is connected directly to the ethernet network requires a unique IP
address.
SEE SECTION 10 FOR INSTRUCTIONS ON CHANGING ID AND IP ADDRESSES.
RS-485 DAISY CHAIN (SECTION 5.7)
ETHERNET
NETWORK
M34373
Fig. 17. EMS or Control Unit with Modbus Communication RS-485 Daisy
Chain Ethernet Network.
62-0398—0232
Page 33
E-MON CLASS 3400 METER
7.0 MULTIPLE-LOAD MONITORING
The Honeywell E-Mon Class 3400 Meter provides extreme flexibility by allowing
additional sets of current sensors to be used in parallel so multiple load locations
can be monitored by one meter. This feature allows a totalized display readout
from two or more load circuits.
You may use parallel sensors to monitor specific breakers from one panel,
specific breakers from more than one panel, two or more complete panels, etc.
When paralleling current sensors, the following rules must be followed for
accurate readings:
1. Current sensors must be installed in complete sets of three, with a maxi-
mum of three sensors installed in parallel per phase.
NOTE:-In 1-phase option - sensors must be installed in set of 2 with maximum of three sensors per phase.
2. All sensors used in parallel must be of the same amperage rating (all 100-
amp, all 400-amp, etc.) The rating is determined by the current rating of the
meter. For example, a 200-amp meter must use extra sets of 200-amp current sensors.
3. All locations being monitored must have the same power source. A 480-volt
meter cannot monitor a 208-volt load, nor can a meter monitor two-480
volt loads if they are from different originating power sources or from different transformers.
4. Multiply the meter display readings by the number of sets of current sen-
sors installed. Example: Meter readings of 5 kWh with 2 sets of current sensors - 10 kWh is the actual usage. (5 x 2=10.)
3362-0398—02
Page 34
E-MON CLASS 3400 METER
NOTE: One set of current sensors equates to three sensors, one per phase. The
multiplier only applies when extra sets of current sensors are installed on
one meter. If you are using only one set of three current sensors, the multiplier is not required.
LINE VOLTAGE CURRENT SENSORS
C N B W B W B W
1
1
LINE VOLTAGE LEADS
LOAD A
A
B
C
N
LOAD SOURCE (LINE)
LOAD B
A
B
C
N
LOAD SOURCE (LINE)
1
CURRENT
SENSOR
LEADS
CURRENT SENSOR LEADS
M34643
Fig. 18. Three Phase Multiple-load Wiring Diagram
CURRENT SENSORS
A
Ø
B
Ø
LOAD SOURCE
LOAD A
LOAD SOURCE
LOAD B
INSTALL JUMPER W IRE.
1
N
A
Ø
B
Ø
N
Fig. 19. Single Phase Multiple Load Wiring Diagram.
62-0398—0234
LINE VOLTAGE
AØBØC
Ø
B W B W B W
N
1
M34644
Page 35
E-MON CLASS 3400 METER
WARNING
8.0 PREVENTATIVE/SCHEDULED
MAINTENANCE
The unit is shipped in a calibrated and fully functional tested condition. Since the
unit is factory-calibrated using proprietary firmware algorithms, no internal unit
adjustments are necessary.
This unit contains no internal adjustments, so no preventative or scheduled
maintenance is required.
No cleaning or decontamination procedures are required for this instrument.
9.0 LITHIUM BATTERY REPLACEMENT
The E-Mon Class 3400 Meter has a Lithium Battery Cell, which is used to retain
the contents of SRAM and the RTC during power outages. The battery has a life
expectancy of greater than 5 years.
Nominal Working Voltage3 Vdc Output
Nominal Current Capacity225 mAHr
Cell ChemicalManganese Dioxide Lithium
Operating Temperature Range -30 to +60 Degrees Celsius
ManufacturerPanasonic
Manufacturer’s Part NumberCR2032
Fig. 20. Battery Specifications at 25 Degrees Celsius.
Only replace battery with Panasonic part number CR2032 only. Use of
another battery may present a risk or explosion. See owners manual for
safety instructions. Internal circuit card components are extremely
sensitive to electrostatic discharge. Be careful not to touch internal
circuitry prior to discharging any static buildup on your person. To
discharge yourself, touch a grounded metal object such as conduit or a
metal enclosure exterior.
The battery cell is mounted in a coin cell on the upper right side of the
main power board. Replace the battery if the low battery warning is on
display.
3562-0398—02
Page 36
E-MON CLASS 3400 METER
M33278
BATTERY
+
–
Fig. 21. Lithium Battery Cell.
Use the following procedure to replace the battery cell
1. Disconnect power from the meter at the unit external circuit breaker.
2. Remove the battery from its holder and place on a non-conductive surface.
3. Install new battery into the battery holder.
NOTE: Care should be taken to insure that the replacement battery is installed
the same polarity as the battery that was removed. No damage to unit or
battery will occur if battery is inadvertently installed in the wrong direction.
4. Dispose of the used battery in accordance with the manufacturers’ (Pana-
The Honeywell E-Mon Class 3400 Meter is used to monitor electric power usage
of individual loads after the utility meter and store kW and kVAR data for
automatic meter reading.
Fig. 22. Class 3400 Stand Alone Meter with 4 Line Display.
10.1 Start Up Screens
When the meter starts up, the screen
first displays the meter name and
firmware image type.
After approximately 4 seconds, the
screen displays misc. information such
as active configurations, meter
configurations, phase, voltage,
amperage, calibration factors, serial
number, Date/time and firmware
version.
3762-0398—02
Page 38
E-MON CLASS 3400 METER
Screen 1: Total Kilowatt-Hours (kWh)
Delivered.
Screen 2: Peak Demand (kW)
with Date & Time Stamp
Screen 3: Actual Load (kW)
with Present Time
Screen 4: Average Current (amps)
Per Phase.
Note: 1-Phase option will only state:
PH-A and PH-B.
Screen 5: Average Voltage (volts)
Per Phase.
Note: 1-Phase option will only state:
PH-A and PH-B.
Screen 6: Average Voltage (volts)
Phase to Phase.
Note: 1-Phase option will only state:
P-AB and P-BA.
Screen 7: Power Factor (pf)
Per Phase.
Note: 1-Phase option will only state:
PH-A and PH-B.
10.2 Normal Mode Display Screens
The E-Mon Class 3400 Meter features seven Normal Mode Display Screens for
monitoring the meter. Each screen is displayed for 5 second intervals, before
scrolling onto the next screen.
You can “lock” the scrolling display on any one of the seven screens. This will be
explained in detail on following pages.
Explanations of the Normal Mode Display Screens are as follows:
62-0398—0238
Page 39
E-MON CLASS 3400 METER
M33320
DOWN
UP
SELECT
MENU
Fig. 23. Push Buttons.
10.2 How to Program the Display Screens
The display information can be programed using four push buttons switches. The
push buttons (DOWN, UP, SELECT, MENU) are located at the top of the display
board on the inside front door of the meter. The buttons are used to program the
following:
• Load Control (This field sets the load control parameters).
• Date & Time (This field sets the month, day, year, and time).
• Device ID (This field changes the default setting, which is 1A for EZ7 and 2 for
ModBus).
and gateway information).
• IP Settings (This field allows you to select the DHCP or static IP address, mask
• Reset KW/KWH Read (This field resets the Peak kW Demand to zero).
3962-0398—02
Page 40
E-MON CLASS 3400 METER
LOAD: 0.0 KW
LIMIT:5.5 KW
VAR: +3.5 KW
R/H:5/20
—> LOAD CONTROL
DATE & TIME
DEVICE ID
IP SETTINGS
10.2.1 Load Control Display Screen
The E-Mon Class 3400 Meter Load Control Relay is an option (the card includes
load control, pulse input [2], and pulse output [2] - for Load Control, order option
“-X-”Expanded Feature Package); it is used to activate alarming or load control.
The relay contacts are rated for 250 VAC and a maximum of 3 amps load. It can be
used for direct control of alarms under 3 amps or as a pilot duty device for high
loads.
The relay set points are accessed through push buttons on the meter’s display
board. The meter’s Load Control display screen indicates the load settings.
LOAD: Indicates the actual KW load in
real-time on the meter.
LIMIT: Is the load control set point. It is
set to the desired point for the relay to
activate. Depending on the alarm/
control requirements, this can be used
for either high or low load activation.
VAR: is the relay deactivation setting. It is the point where the relay is deactivated.
The “+” sign indicates that the deactivation point will occur when the load rises
above the set point. This is used when the relay is to be activated on a low load
condition. The “-” sign indicates that the deactivation point will occur when the
load drops below the set point. This is used when the relay is to be activated on a
high load condition. The kw setting indicates the difference from the set point
where the relay will deactivate.
In the example above, the relay is set to activate on a low load condition. The relay
will deactivate when the load rises (+) above the set point by 3.5 kw. (deactivates
at 9 kw).
R: Is the Ramp setting. It indicates the time delay for activation when the setpoint
is reached. This is to prevent relay function on short term load changes, such as a
motor start. The example shows a 5 second delay before the relay activates.
H: Is the Hold setting. It indicates the time delay for relay deactivation when the
load variation is reduced from the variation that was set. The example shows that
there is a 20 second delay before the relay deactivates. This is designed to
prevent short cycling of loads when the relay functions.
To change the settings on the Load Control Screen, complete the following steps:
1. Press the MENU button.
2. The following screen will appear:
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Page 41
E-MON CLASS 3400 METER
LOAD: 0.0 KW
LIMIT:5.5 KW
VAR: +3.5 KW
R/H:5/20
Save changes: Y / N
3. Press the SELECT button. The Load Control Screen will appear.
4. Use UP or DOWN button to make changes, press the SELECT button to
advance to the next setting. Repeat this step until all the settings have been
updated.
5. Press the MENU Button. If changes were made, you’ll be asked if you want
to save the settings, press UP or DOWN to select Y or N.
6. Press SELECT to save new settings. This will also return you to main menu.
In main menu, select EXIT to get out of programming mode and return to
normal display mode.
4162-0398—02
Page 42
E-MON CLASS 3400 METER
—> LOAD CONTROL
DATE & TIME
DEVICE ID
IP SETTINGS
LOAD CONTROL
—>DATE & TIME
DEVICE ID
IP SETTINGS
DATE: 02-16-2012
TIME: 01:57:36
Save changes: Y / N
10.2.2 Date & Time Display Screen
To change the date and time, complete the following steps:
1. Press the MENU button.
2. The following screen will appear:
3. Use UP or DOWN button until the arrow is on the Date and Time line.
4. Press the SELECT button. The Date and Time Screen will appear, and the 2
digit month will be blinking.
5. Use UP or DOWN button to make changes, press the SELECT button to
advance to the next setting. Repeat this step until all the date and time settings have been updated.
6. If changes were made, you’ll be asked to save, press UP or DOWN to select Y
or N.
7. Press SELECT to save new settings. This will also return you to main menu.
In main menu, select EXIT to get out of programming mode and return to
normal display mode.
62-0398—0242
Page 43
E-MON CLASS 3400 METER
—> LOAD CONTROL
DATE & TIME
DEVICE ID
IP SETTINGS
LOAD CONTROL
DATE & TIME
—>DEVICE ID
IP SETTINGS
EZ7 ID:1A
MODBUS ID: 2
Save changes: Y / N
10.2.2 Device I.D. Display Screen
To change Device I.D., complete the following steps:
1. Press the MENU button.
2. The following screen will appear:
3. Use UP or DOWN button until the arrow is on the Device ID line.
4. Press the SELECT button. The Device ID Screen will appear.
5. Use UP or DOWN button to make changes, press the SELECT button to
advance to the next setting. Repeat this step until all the settings have been
updated.
6. If changes were made, you’ll be asked to save, press UP or DOWN to select Y
or N.
7. Press SELECT to save new settings. This will also return you to main menu.
In main menu, select EXIT to get out of programming mode and return to
normal display mode.
To Change the IP settings, complete the following steps:
1. Press the MENU button.
2. The following screen will appear:
3. Use UP or DOWN button until the arrow is on the IP Setting line.
4. Press the SELECT button. The IP Setting Screen will appear.
5. Locate the number to be changed in the menu, press and hold Button 4
(Down Button) for 3 seconds, release the button, the last digit for this number blinks,;
6. To change the number of the digit, use Button 3 (Up Button) to cycle
through 0 to 9.
7. Press Button 4 to move to the next digit, and repeat Step 5.
8. To exit the mode of changing number by digit, press Select Button;
9. To save the new number, press Main Menu Button and select “Y” to save.
NOTE: The menu items that can be
changed by digit are: IP address/
Gateway/Subnet Mask, BACnet
Device ID, BACnet MSTP MAC
Address/max masters, Modbus ID,
and dollar cost/CO2 lbs for Green
This will also return you to main menu. In main menu, select EXIT to get out of
programming mode and return to normal display mode.
62-0398—0244
Net meters.
Page 45
E-MON CLASS 3400 METER
10.2.4 Display Hold Feature
You can “lock” the scrolling display so that it will stay locked on any one of the six
screens.
To stop the display from scrolling, complete the following steps:
1. Press the UP and DOWN buttons to choose which of the six screens you
would like to display.
2. Press the Select button. At the top of the display, you will see the message
HOLD1. This will lock the display for 1 HOUR.
NOTE: The display hold feature has different selectable time periods.
3. Pressing Select again will show the message HOLD6. This will lock the dis-
play for 6 HOURS.
12.0 Class 3400 Meter Expansion Board
11.0 Meters Equipped with the Optional
Expanded Feature Package
This option adds a number of new features to the meter. (Order “-X-”, Expanded
Feature Option)
Pulse Input
The board contains two pulse inputs for connection to external metering devices
which have a dry-contact type of output pulse. The maximum frequency of pulses
accepted by the E-Mon Class 3400 Meter is 10Hz.
Pulse Output
The board contains two pulse outputs for use by Building Automation Systems,
etc. One pulse is in watt-hours, the second pulse is in VAR-hours. They are not
polarity dependant. The maximum current allowed is 400ma and the maximum
voltage allowed is 15 VAC or VDC.
Alarm Relay / Load Control
There are two form “C” relays on the expansion board. They are designed to be
used for alarming or load control functions on circuits up to 250VAC and 3 amps.
The pulse outputs provided by the E-Mon Class 3400 Meter are watt-hours and
var-hours. Output 1 is the watt-hour pulse and Output 2 is the var-hour pulse.
The pulse value is dependent on the amperage size of the meter. See the chart
below for the values also true for expansion board pulse output.
Meter AmpsWatt-hours / pulseVar-hours / pulse
1001.953131.95313
2003.906253.90625
4007.81257.8125
80015.62515.625
160031.2531.25
320062.562.5
NOTE: The standard pulse option is not functional when used with the
expanded feature package.
SELECTION PINS 1 AND
2 FOR WATT-HOURS VIA
3 POSITION JUMPER J43
THE WATT-HOUR OUTPUT
IS THE 2 POSITION TERMINAL
BLOCK HERE
M34374
Fig. 24. E-Mon Class 3400 Meter Standard Watt-hour Pulse Output.
4762-0398—02
Page 48
E-MON CLASS 3400 METER
12.0 FREQUENTLY ASKED QUESTIONS
Q. When providing line voltage to the meter, can I tap off of the same breaker I am
monitoring?
A. Yes, the voltage can be pulled from the same breaker being monitored.
Q. Can the meter’s line voltage wires be run in the same conduit as the sensor
leads?
A. Yes. There will be no effect if the sensor leads and line voltage wires are run in
the same conduit.
Q. Can the meter’s communication wires and line voltage be run in the same
conduit? A. It is not recommended to run these wires together due to noise
concerns and their effects on the communications signal integrity.
Communications wires can be routed separately using the 3/4” conduit port.
Q. How do I find the cost for kWh and kW to bill my tenants?
A. Your local utility bill should list the cost per kWh and kW. If not, simply call your
utility and ask them to provide you with the cost per kWh and kW.
Q. What size wire do I use for the line voltage leads?
A. These wires are normally sized at #14 AWG, but be sure to confirm this
requirement with your local and national electrical code requirements.
Q. What size wire should I use to extend the current sensor leads?
A. These wires are normally 14-22 AWG, twisted-pair arrangement. Consult your
electrical code for proper wiring requirements.
12.0 Frequently Asked Questions
(continued)
Q. The load I need to monitor has parallel feeds. How do I install the current
sensors for this application?
A. There are two ways you can monitor parallel feeds. The easiest and preferred
method is to clamp the sensors around all feed wires for each phase. The second
way to monitor parallel feeds is to clamp the sensor around one of the feed wires
for each phase. When you read the meter, the final reading must be multiplied by
the number of feed wires for each phase.
Q. I have two subpanels I would like to monitor with one E-Mon Class 3400 Meter.
These subpanels are fed by different transformers in the building. Can I parallel
sensors and monitor both panels with one meter?
A. No. These panels cannot be monitored with one meter because they are
different power sources. When you parallel current sensors, all loads being
monitored must be from the same voltage source.
Q. I have 5 breakers in one subpanel I would like to monitor with one
E-Mon Class 3400 Meter. Can this be done without having to parallel current
sensors?
A. Yes. Simply run all the breaker wires through one set of current sensors. Make
62-0398—0248
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E-MON CLASS 3400 METER
sure all A-phase circuits are run through the A-phase sensor, and the same for B
& C phases. The meter should be sized by the highest amount of current being
monitored by one sensor.
Q. I’ve gone through the troubleshooting guides and I still can’t get my
E-Mon Class 3400 Meter to work. What should I do?
A. Before removing the unit, contact Honeywell E-Mon’s technical services
department at (888) 516-9347. Honeywell E-Mon’s technical department will
assist you in detailed troubleshooting of the meter installation and assist you in
getting the unit running without having to remove and/or return it.
410652FloatVoltage, line to line, phase A-B Volts-LR
2Integer Energy deliveredWh PulseR/W
1
2Integer Energy receivedWh PulseR/W
1
2Integer Reactive energy deliveredVARh Pulse R/W
1
2Integer Reactive energy receivedVARh Pulse R/W
1
2FloatEnergy deliveredkWhR/W
1
2FloatEnergy receivedkWhR/W
1
2FloatReactive energy deliveredkVARhR/W
1
2FloatReactive energy receivedkVARhR/W
Volts-NR
A-N
Volts-NR
B-N
Volts-NR
C-N
62-0398—0250
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E-MON CLASS 3400 METER
ModBus Customer Point Map: CL3400
Address Registers FormatDescriptionUnitsCL3400
410672FloatVoltage, line to line, phase B-C Volts-LR
410692FloatVoltage, line to line, phase C-A Volts-LR
410712FloatPhase angle, phase ADegreeR
410732FloatPhase angle, phase BDegreeR
410752FloatPhase angle, phase CDegreeR
2
41083
41085
44001
44007
45501
46025
46049
460578CustomRecorder Info., Demand
2FloatExternal Input 1PulseR/W
2
2FloatExternal Input 2PulseR/W
3
6Custo
Interval Day BlockR/W
m
4
1 per
Integer Interval DataPulseR
interval
5
2 per day CustomInterval Data HeadersR
6
8Custo
RTC Date/TimeR/W
m
7
8Custo
m
EZ7 ID, ModBus ID, Serial
Number
R/W
R/W
Interval
465138CustomFlags L1: Power Failure,
R
Battery
465218CustomFlags L2: Power Failure DateR
1. To clear single meter kWh/kVARh, set multiple points at 40001 or 41001 for 8
points with data set to 0000 0000 0000 0000 0000 0000 0000 0000. Remove
Jumper J6 after changes have been made.
2. External inputs are standard on Class 5000 meters and optional on Class 3400
meters (Part of Expanded Feature Package).
To clear external inputs, set multiple points at 41083 or 41085 for 2 points with
data set to 0000 0000. Jumper J6 must be closed. Remove Jumper J6 after
changes have been made.
3. To set the interval data day block, set multiple points at 44001 for 6 points with
data set to 0C0I 0000 MMDD YYYY 0000 0000.
0C = Channel, 0I = Interval (0F = 15 minute intervals, 05 = 5 minute intervals)
4. Each register represents a 15 or 5 minute kWh pulse value based on the
interval day block. 96 registers max with 15 minute intervals. 288 registers max
with 5 minute intervals. The first interval data register 44007 represents the
pulse count for the first 15 or 5 minute interval beginning at midnight.
5. The interval data headers represent days with available interval data. Each day
represents 2 registers. Format: MMDD YYYY.
6. To set the date and time, set multiple points at 46025 for 4 points with data set
to HHMM SSDW MMDD YYYY (DW=day of week)
7. To change the ModBus ID, set single point at 46050 with data set to new
ModBus ID (e.g. 1 to 247). Jumper J6 must be closed.
5162-0398—02
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E-MON CLASS 3400 METER
BACnet Object Descriptors: CL3400
Instance IDBACnet
ObjectDescriptionUnits
1
1
1
2
1
3
1
4
5Analog
Analog
Input
Analog
Input
Analog
Input
Analog
Input
Energy deliveredkWhPresent
Energy receivedkWhPresent
Reactive energy deliveredkVARhPresent
Reactive energy receivedkVARhPresent
Real powerkWPresent
Input
6Analog
Reactive powerkVARPresent
Input
7Analog
Apparent powerkVAPresent
Input
8Analog
Power factor% PFPresent
Input
9Analog
Peak demandkWPresent
Input
10Analog
Current averageAmpsPresent
Input
11Analog
Voltage line-neutralVolts-N Present
Input
12Analog
Voltage line-lineVolts-L Present
Input
13Analog
FrequencyHzPresent
Input
14Analog
Phase angleDegreePresent
Input
15Analog
Real power phase AkWPresent
Input
16Analog
Real power phase BkWPresent
Input
17Analog
Real power phase CkWPresent
Input
18Analog
Reactive power phase AkVARPresent
Input
19Analog
Reactive power phase BkVARPresent
Input
BACnet
PropertyCL3400
R
Value
R
Value
R
Value
R
Value
R
Value
R
Value
R
Value
R
Value
R
Value
R
Value
R
Value
R
Value
R
Value
R
Value
R
Value
R
Value
R
Value
R
Value
R
Value
62-0398—0252
Page 53
Instance IDBACnet
ObjectDescriptionUnits
20Analog
Input
21Analog
Input
22Analog
Input
23Analog
Input
24Analog
Input
25Analog
Input
26Analog
Input
27Analog
Input
28Analog
Input
29Analog
Input
30Analog
Input
31Analog
Input
32Analog
Input
33Analog
Input
34Analog
Input
35Analog
Input
36Analog
Input
37Analog
Input
38Analog
Input
E-MON CLASS 3400 METER
BACnet Object Descriptors: CL3400
BACnet
PropertyCL3400
Reactive power phase CkVARPresent
Value
Apparent power phase AkVAPresent
Value
Apparent power phase BkVAPresent
Value
Apparent power phase CkVAPresent
Value
Power factor phase A% PFPresent
Value
Power factor phase B% PFPresent
Value
Power factor phase C% PFPresent
Value
Current phase AAmpsPresent
Value
Current phase BAmpsPresent
Value
Current phase CAmpsPresent
Value
Voltage line-neutral phase
A-N
Voltage line-neutral phase
B-N
Voltage line-neutral phase
C-N
Volts-N Present
Value
Volts-N Present
Value
Volts-N Present
Value
Voltage line-line phase A-B Volts-LPresent
Value
Voltage line-line phase B-C Volts-LPresent
Value
Voltage line-line phase C-A Volts-LPresent
Value
Phase angle phase ADegreePresent
Value
Phase angle phase BDegreePresent
Value
Phase angle phase CDegreePresent
Value
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
5362-0398—02
Page 54
E-MON CLASS 3400 METER
BACnet Object Descriptors: CL3400
Instance IDBACnet
ObjectDescriptionUnits
39Analog
Input
40Analog
Input
41Analog
Input
42
43
2
2
Analog
Input
Analog
Input
Reserve ANo units Present
Reserve BNo units Present
Reserve CNo units Present
External Input 1PulsePresent
External Input 2PulsePresent
BACnet
PropertyCL3400
R
Value
R
Value
R
Value
R
Value
R
Value
1. To clear single meter kWh/kVARh, select reset kW/kWh on the display menu of
the meter. This function will also reset external inputs. Jumper J6 must be
closed. Remove J6 when changes have been completed.
2.External inputs are standard on Class 5000 meters and optional on Class
3400 meters (Part of Expanded Feature Package). To clear external inputs, select
reset kW/kWh on the display menu of the meter. This function will also reset kW/
kVARh. Jumper J6 must be closed. Remove J6 when changes have been
completed.
BACnet Device IDDeviceProtocol object types supported R
BACnet Device IDDeviceProtocol revisionR
BACnet Device IDDeviceObject listR
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E-MON CLASS 3400 METER
BACnet Device IDDeviceMax APDU length supportedR
BACnet Device IDDeviceSegmentation supportedR
BACnet Device IDDeviceLocal timeR
BACnet Device IDDeviceLocal dateR
BACnet Device IDDeviceAPDU time outR/W
BACnet Device IDDeviceNumber of APDU retriesR/W
BACnet Device IDDeviceDevice address bindingR
5562-0398—02
Page 56
E-MON CLASS 3400 METER
14.0 HIGH VOLTAGE METERING
kWh Meter Installation Instructions for Use with
Honeywell E-Mon Meters in High Voltage
Applications
The Honeywell E-Mon model # E34-12025HV kWh meter is designed to be used
for monitoring high voltage (2400, 4160, 13200, etc) circuits, either “stand alone”
or in an AMR application.
This meter is intended to be used with the appropriate high voltage Potential
Transformers (PTs) and Current Transformers CTs) supplied by others. The meter
application is centered around a 120 VAC secondary output from the high voltage
PTs and a 5 amp secondary output from the high voltage CTs.
Items addressed by this document include the installation of the E34-12025HV
kWh meter on high voltage circuits as well as the calculations to provide the
correct meter multiplier based on the PT and CT sizes used on the high voltage
conductors.
Installation should be performed by qualified personnel and only according to all
applicable electrical codes.
High Voltage CTs (supplied by others) reduce the primary current (amps) to a
directly proportional 0~5 amp secondary output. As an example, a 0~400 amp
primary becomes a 0~5 amp proportional signal from the secondary output. In
our application, the high voltage CT secondary is installed as a continuous “loop”,
with a single conductor connected to both secondary terminals.
To convert the 0~5 amp signal to a 0~ 2 volt signal, Honeywell E-Mon’s Current
Sensors are installed on the CT secondary conductor. A set of 25 amp sensors is
used in this application. These sensors have the high voltage CT secondary
conductor passed through them five (5) times (see below) by looping the
secondary conductor as shown in the drawing. The reason for this is so that the 5
amp secondary now appears to the current sensor as a 0~25 amp signal. This
creates a conversion of the CT’s primary current to a directly proportional 0~ 2
volt signal which is utilized by the Honeywell E-Mon meter. The example from the
first paragraph has now become a 400 amp to 2 volt device, by this technique.
62-0398—0256
Page 57
PASS #1
PASS #2
Fig. 25. High Voltage CTs.
E-MON CLASS 3400 METER
PASS #3
PASS #4
PASS #5
M34227
A
B
C
1
LITTLEFUSE PART NUMBER KLDR.100.
HIGH VOLTAGE
VOLT INPUT C URRENT INP UT
X
A B C N
1
120 VAC
AB C
W B W B W B
GRD
25 AMP CURRENT
SENSORS WITH 5
WRAPS OF 5 AMP
CT SECONDARY
CURRENT SENSORS
WITH SECONDARY
AT 5 AMP
M34375A
Fig. 26. High Voltage Wiring Diagram For Systems Using 3 PTs (WYE) and 3
Current Sensors with 5 Amp Secondaries.
5762-0398—02
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E-MON CLASS 3400 METER
CAUTION
Current Sensors with 5 amp output have dangerous voltages if the
secondary (5 Amp) is not shorted. Only qualified personnel should work
with them, using approved methods for handling and follow all
appropriate electric codes.
This special high voltage meter installation shows the correct wiring procedure
for 4-wire high voltage circuits. In this application, the 3 element meter
connection is used on the secondary circuits of the user supplied high voltage
PTs and CTs.
The Honeywell E-Mon meter used in this application is the model E34-12025HV
kWh meter.
Installation of these meters requires the use of three (3) current sensors mounted
on the secondaries of the high voltage Current Transformers. See the drawing
above for proper wiring. For correct operation, the meter must be installed
correctly.
This special high voltage meter installation utilizes high voltage PTs (Potential
Transformers) and CTs (Current Transformers) supplied by others. The Honeywell
E-Mon meter is installed using the secondary outputs of these devices.
High voltage PTs reduce the primary voltage (4160v, 13200v, etc.) to a Secondary
output of 120v. This secondary is connected to the Honeywell E-Mon meter
voltage inputs as shown in the wiring diagram. High voltage CTs reduce the
primary current (amps) to a directly proportional 0~5 amp output. As an example,
a 0~400 amp primary becomes a 0~5 amp proportional signal from the
secondary output. This allows much smaller wiring to be utilized in the meter
hookup. The high voltage CT secondary is installed as a continuous “loop”, with a
single lead connected to both secondary terminals.
Honeywell E-Mon meters accept a 0~2 volt signal from their Current Sensors. To
convert the 0~5 amp signal, the Current Sensors are installed on the CT
secondary lead. A set of 25 amp sensors is used in this application. These sensors
have the high voltage CT secondary lead passed through them five (5) times by
looping the wire as shown in the drawing. This allows a direct conversion of the
CTs primary current to a directly proportional 0~2 volt signal, which is used by the
meter.
Since there is a signal ratio introduced by the high voltage CTs and PTs, it will be
necessary to multiply the number on the meter’s display for a correct reading. The
meter multiplier is calculated by using the CT ratio and the PT Ratio. [PTr x CTr /
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Page 59
E-MON CLASS 3400 METER
Number of Secondary Lead Passes Through Sensor]. The Honeywell E-Mon 25
amp HV kWh meter with 5 wraps of the high voltage CT secondary will have its
multiplier calculated by the formula shown below.
EXAMPLE: CT = 400:5 = 80:1 (CTr = 80)
PT = 4200:120 = 35:1 (PTr = 35)
Wraps (Passes) = 5
METER MULTIPLIER = PTr x (CTr/Wraps)
35 x (80/5)
35 x (16) = 560
5962-0398—02
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E-MON CLASS 3400 METER
15.0 LIMITED METER WARRANTY
Subject to the exclusions listed below, Honeywell will either repair or replace (at
its option) any product that it manufactures and which contains a defect in
material or workmanship.
The following exclusions apply:
1. This Limited Warranty is only effective for a period of (5) five years following
the date of manufacture when installed in accordance with manufacturer’s
instructions by qualified personnel.
2. Honeywell must be notified of the defect within ninety (90) days after the
defect becomes apparent or known.
3. Buyer’s remedies shall be limited to repair or replacement of the product or
component which failed to conform to Honeywell’s express warranty set
forth above.
4. Buyer shall be responsible for all freight costs and shall bear all risk of loss
or damage to returned goods while in transit.
5. This Limited Warranty does not cover installation, removal, reinstallation, or
labor costs, and excludes normal wear and tear. Buyer shall provide labor
for the removal of the defective component or item and installation of its
replacement at no charge to Honeywell.
6. This Limited Warranty does not cover any product if: (i) a product is altered
or modified from its original manufactured condition, (ii) any repairs, alterations or other work has been performed by Buyer or others on such item,
other than work performed with Honeywell’s authorization and according to
its approved procedures; (iii) the alleged defect is a result of abuse, misuse,
improper maintenance, improper installation, accident or the negligence of
any party; (iv) damaged as a result of events beyond Honeywell’s control or
other force majeure events or (v) used in conjunction with equipment, components, accessories, parts or materials not supplied or approved by Honeywell.
7. This Limited Warranty is limited to the obligation to repair or replace the
manufactured product. This is the sole and exclusive remedy for any breach
of warranty. IN NO EVENT SHALL HONEYWELL BE LIABLE FOR ANY INDIRECT, INCIDENTAL, SPECIAL, CONSEQUENTIAL OR PUNITIVE DAMAGES
(INCLUDING ANY DAMAGE FOR LOST PROFITS) ARISING OUT OF OR IN
CONNECTION WITH THE FURNISHING OF PRODUCTS, PARTS OR SERVICES, OR THE PERFORMANCE, USE OF, OR INABILITY TO USE ANY
PRODUCTS, PARTS OR SERVICES, SALE OF OR OTHERWISE, WHETHER
BASED IN CONTRACT, WARRANTY, TORT, INCLUDING WITHOUT LIMITATION, NEGLIGENCE, OR ANY OTHER LEGAL OR EQUITABLE THEORY.
8. EXCEPT AS EXPRESSLY PROVIDED HEREIN, HONEYWELL MAKES NO
WARRANTY OF ANY KIND, EXPRESS OR IMPLIED WITH RESPECT TO ANY
PRODUCTS, PARTS OR SERVICES PROVIDED BY HONEYWELL INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. PRODUCTS OR
COMPONENTS DISTRIBUTED, BUT NOT MANUFACTURED, BY HONEYWELL ARE NOT WARRANTED BY HONEYWELL AND BUYER MUST
62-0398—0260
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E-MON CLASS 3400 METER
1.40”
3.04”
ENSURE GOOD CONNECTION TO THE 3/4” CONDUIT
OPENING WHICH HAS THE PAINT REMOVED FOR
INPUT VOLTAGE AND CURRENT SENSOR WIRING.
IT IS LOCATED ON THE BOTTOM OF THE UNIT ENCLOSURE
FIGURE 1
INSTEAD RELY ON THE REPRESENTATIONS AND WARRANTIES, IF ANY,
PROVIDED DIRECTLY TO THE BUYER BY THE MANUFACTURER OF SUCH
PRODUCT OR COMPONENT.
ADDENDUM: CLASS 3400/5000 METERS
The following list of procedures describes steps to be taken to ensure the Class
3400/5000 Meters are installed in accordance with ANSI C12.20 Certification
Standards.
Chapter 6.2 Main Power Board Connections
Addendum
1. Wire Entry: one ¾” conduit opening is located on the bottom of the unit
enclosure. This opening is used for bringing in MAINS power and for current
sensor wiring. Route the appropriate cabling to and through the respective
enclosure opening.
2. Installing the Class 3400/5000 protective earth ground: Connect an earth
ground wire to the Class 5000 protective ear th ground lug with a torque of 7
N-m.
Ensure that there is metal on metal contact between the Meter housing and
conduit to provide a low impedance path to GND. This requires removing the
paint surrounding the conduit hole during installation. We recommend to use a
1-1/8” Spot Facer Drill Brush to remove the paint, as shown in Figure 1 below:
6162-0398—02
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E-MON CLASS 3400 METER
INSTALL THE FERRITE BEAD
WITHIN 2” OF THE END
OF THE WIRE THAT CONNECTS
TO THE METER.
FIGURE 2
Chapter 6.7 RS-485 Wiring Addendum
1. Open the supplied Ferrite Bead.
2. Loop the RS-485 network cable around itself one time, creating a loop large
enough to fit over the length of the Ferrite Bead. Be sure to make the loop so
that the Ferrite Bead is no more than 2” from the end of the wire that connects to the meter.
3. Placed the looped section of the RS-485 over one side of the Ferrite Bead.
4. Close the Ferrite Bead securely.
5. Connect the +(high) terminal of PORT 1 of each meter together so that the +
terminals on all meters are linked, + to + to + ...
6. Connect the -(low) terminal of PORT 1 of each meter together so that the -
terminals on all meters are linked, - to - to - ...
Connect the GND terminals of PORT 1 of each meter so that the GND terminals
on all meters are linked, GND to GND, to GND...