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E-Mon D-Mon Installation Manual Download Page 23

9.0  

Display Screens

The Green Class Net Meter cycles through eight (8) separate display screens.  
These screens are described in further detail below.

Screen 1 - kWh Delivered

 

   

 

 

This screen displays the amount of energy    

 

   

 

 

(kWh) delivered from the serving 

   

 

  utility/energy 

provider.

 

 

Screen 2 - kWh Received

 

   

 

 

This screen displays the amount of energy

 

   

 

 

(kWh) received by the serving 

 

   

 

 

utility/energy provider.  It shows the energy

 

   

 

 

that was pushed back into the electrical grid

 

   

 

 

from excess capacity in a building with a

 

   

 

 

cogeneration, solar or wind powered supply

   

 

  system.

Screen 3 - Net (Delivered minus Received)

 

   

 

 

This screen displays the Net reading of both

 

   

 

 

the delivered and received energy.  In this

 

   

 

 

example, the received amount (2 kWh) is

 

   

 

 

subtracted from the delivered amount (7

 

   

 

 

kWh).  If more energy is received into the 

 

   

 

 

electrical grid this can be a negative number.

Screen 4 - Not Utilized

 

   

 

 

This screen is not utilized at this time.

Screen 5 - Real-Time Net Load in kW

 

   

 

 

This screen displays the “real-time” Net

 

   

 

 

load in kW (Kilowatts.)  It indicates the 

 

   

 

 

present load of this service.

Screen 6 - Not Utilized

 

   

 

 

This screen is not utilized at this time.

 

Page 20

Summary of Contents for D-Mon

Page 1: ...roducts E Mon D Mon Installation Manual Green Class KWH Demand Meter with Net Metering Capabilities 99 Washington Street Melrose MA 02176 Phone 781 665 1400 Toll Free 1 800 517 8431 Visit us at www TestEquipmentDepot com ...

Page 2: ... support Monday through Friday 8 00 am to 7 30 pm EST 800 334 3666 You may also reach us via e mail 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 et...

Page 3: ...ion 5 3 Current sensor installation and wiring 11 Section 5 4 Main power sensor wiring diagrams 13 Section 5 5 Line voltage current sensor diagnostics 14 Section 5 6 RS 485 wiring 15 Section 5 7 Modem wiring 16 Section 6 0 Configuring the meter using E Mon Energy 17 Section 7 0 Preventative scheduled maintenance 17 Section 8 0 Lithium battery replacement 18 Section 9 0 Display screens 20 Section 1...

Page 4: ...s designed to display the Net result of the energy used by the consumer The received power is automatically subtracted from the delivered power In certain cases where the consumer sends more power into the grid than the utility has supplied the meter is capable of displaying negative kWh information In addition to the meter s display which will show delivered kWh received kWh net kWh net kW total ...

Page 5: ...r of the arrows on the current sensors to the chart below to confirm the correct current sensor is being used SENSOR ARROW SENSOR COLOR CODE RATING Brown 100 Amp Red 200 Amp Yellow 400 Amp Black 800 Amp Blue 1600 Amp White Black 3200 Amp CAUTION Internal circuit card components are extremely sensitive to electro static discharge Prior to handling or touching internal circuitry discharge any static...

Page 6: ... three header connectors TB2 TB3 and TB4 Each header connector input corresponds to an input voltage phase therefore care must be exercised to ensure each current sensor is connected to the correct input header Display Board The display board interconnects to the main power board via a flex ribbon cable and the board mounts on the inside of the housing door The only required connection is for RS48...

Page 7: ...or lagging Line Frequency 50 60 Hz Metering Accuracy Certified to ANSI C12 16 Voltage Operating Range 10 of rated load Temperature Range Indoor 20 degrees C to 50 degrees C Temperature Range Outdoor 20 degrees C to 70 degrees C Relative Humidity Range 0 95 Non Condensing Voltage Overload 25 Continuously 100 for 20 Cycles Current Sensor Overload 100 for 1 minute without damaging meter Pollution Deg...

Page 8: ...85 Serial Communication Interface Cable UL Listed rated telephone cord 4 conductor 300 VAC stranded conductors 22 26 AWG In Output Voltage Ground Isolated 5 4 VDC Cable Connector RJ45 male IDC or screw terminal termination Ckt Input Isolation 5 3K VAC Max Cable Distance 2 000 Feet Max Network Nodes Maximum cabling nodes 64 including master node Baud Rate 9600 Recommended In Line Fuse Manufacturer ...

Page 9: ...el to minimize risk 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 prior to proceeding Page...

Page 10: ...iring operations review all contents of the users 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 Warning Failure to ground the enclosure creates a possible shock hazard Do not operate the E Mon D Mon Green Class Net Meter without a protective earth wire attached s...

Page 11: ...ground wire securely to the enclosure creates a potential shock hazard Do not operate the meter without a protective earth ground connection securely installed STEP 3 Wire Entry Two openings exist on the unit enclosure one for 1 2 conduit and one for 3 4 conduit The 3 4 conduit opening located on the bottom edge of the housing is used to bring in MAINS power and current sensor wiring The 1 2 condu...

Page 12: ... Connect the NEUTRAL wire to the appropriate terminal block position NOTE For 3 wire delta MAINS input wiring DO NOT connect the NEUTRAL wire Remove the terminal block screw for this position Connect the three AC mains power wires Phase A Phase B and Phase C to their respective positions as labeled on terminal block TB1 After all conductors are connected to their respective terminal block position...

Page 13: ...ns STEP 7 Using an AC Voltmeter verify that the input voltage readings are within the limits specified below NOTE For a 3 Wire system the voltages are measured Phase to Phase On 4 Wire systems the voltages are measured Phase to Neutral Meter Input Voltage Nominal Voltage Limits 10 120 208V 3 Ph 4 Wire 120 VAC 108 to 132 VAC 277 480V 3 Ph 4 Wire 277 VAC 249 to 305 VAC 240 V 3 Ph 3 Wire 240 VAC 216 ...

Page 14: ...re supplied with this sensor type 2 Solid Core Current Sensor This sensor does not open and requires the monitored conductor be removed from the circuit to install the current sensor This type is only supplied when specified at time of order NOTE The unit serial label specifies if the unit is setup for split core or solid core current sensors Meters labeled for split core current sensors cannot be...

Page 15: ... Sensor Wiring Once all the current sensors are installed onto their appropriate phase conductors you can begin terminating the current sensors onto the E Mon D Mon Green Class Net Meter Main Board The current sensor leads can be extended up to 500 feet for remote monitoring applications To extend the length of the wires use 22 AWG twisted pair wire with a black and white conductor rated for 600VA...

Page 16: ...hite Lead 1 10A 600 VAC inline fuse per conductor Littlefuse part number KLDR 100 Neutral not used in delta system Remove neutral terminal block screw for Delta systems LOAD A B C N A B C N G B W B W B W A B C 3 Phase 4 Wire Installation Diagram SOURCE SOURCE Line Voltage Connections 14 22AWG Sensor Connections B Black Lead W White Lead 1 10A 600 VAC inline fuse per conductor Littlefuse part numbe...

Page 17: ... procedures Verify the current sensor white and black conductors are installed in the correct header positions Verify the current sensors are installed in the correct direction on the conductor being monitored Verify the current sensor plugs are terminated in the correct header on the main power board If the error messages still haven t been cleared measure the AC voltage output across the plug te...

Page 18: ...here are two methods for connecting Green Class Net Meters together Method 1 Daisy chain with modular jacks 1 Each display board has two RJ11 jacks available to facilitate RS485 daisy chain connections Using RJ11 4 conductor cable wire each cable end pin to pin Interconnect all units together with the RJ11 cabling 2 After daisy chaining the units is complete you need to decide what device will be ...

Page 19: ...then communicate via the RS485 network Simply connect a phone line to one of the two telephone jacks inside the Class 3000 E Mon IDR to the telephone line to complete the installation B Option 2 Local Computer If adding the Class 3000 or E Mon IDR is not an option a locally residing computer can communicate with the RS 485 network The computer must be connected to the E Mon RS232 485 key The RS232...

Page 20: ... Modem Initialization Downloading Profile Data Unit Initialization Setting Changing Unit ID Group and Location information Resetting Meter Display 7 0 Preventative Scheduled Maintenance The unit is shipped in a calibrated and full functionally tested condition Since the unit is factory calibrated using proprietary firmware algorithms no internal unit adjustments are necessary This unit contains no...

Page 21: ...rial CAUTION 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 socket on the upper right side of the Main Power Board Should the battery ...

Page 22: ...into the PCB Battery socket NOTE The Main Power Board Battery socket is keyed to prevent user from inserting the new battery in the wrong polarity No damage to unit or battery will occur if battery is inadvertently installed in wrong direction Step 4 Visually inspect new battery to verify that all leads are fully inserted into their respective socket positions Step 5 Dispose of the used battery in...

Page 23: ...rom excess capacity in a building with a cogeneration solar or wind powered supply system Screen 3 Net Delivered minus Received This screen displays the Net reading of both the delivered and received energy In this example the received amount 2 kWh is subtracted from the delivered amount 7 kWh If more energy is received into the electrical grid this can be a negative number Screen 4 Not Utilized T...

Page 24: ...ty in an hour based on the present load requirements of the building The figures are based on the national averages as listed by the U S Department of Energy 10 0 Stored Data The Green Class Net Meter stores up to 36 days of interval data in 15 minute segments There are three 3 channels of data that can be accessed through E Mon Energy E Mon s automatic meter reading software This data can then be...

Page 25: ...tenants A Your local utility bill should list the cost per kWh If not simply call your utility and ask them to provide you with the cost per kWh 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 le...

Page 26: ...ng 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 E Mon s control or other force majeure events or v used in conjunction with equipment components accessories parts or materials not supplied or approved by E Mon 7 This Limited Warranty is limited...

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