ECM-1220 User`s Manual - Power/Energy Monitors
Contents
1. 2 Press down on the orange TAB s corresponding to the lead or leads to be inserted using a small flat blade screwdriver October 7 2012 17 www brultech com Copyright 2012 Brultech Research Inc All rights reserved l Brultech Research Inc BROpTeEcwH 3 Insert the leads into the terminal block while making sure the leads are perpendicular In most cases both CT leads can be inserted at the same time If the lead was stripped back 10mm then the stripped section should be entirely inside the block with WILLA LAL th bi a only the insulation visible K N 4 Release the pressure to the spring tab OG 5 Finally tug slightly on the leads to make sure they are secure e Ki A N The channel number for each block is printed on the circuit board next to each terminal block as shown in the picture right ww bw IMPORTANT Two types of current transformers are compatible with the GEM Types ia A and B The difference between each type has to do with the type of signal which represents the sensed current TYPE A The measured current is represented by a voltage output signal SPLIT 60 SPLIT 100 SPLIT 200 SPLIT 400 TYPE B The measured current is represented by a current output signal Micro 40 Micro 80 Micro 100 SPLIT 170 Because of this difference each CT type has to be connected to the terminal strip of the GEM in a different manner October 7 2012 18 www brultech c2. L is the load which is the device receiving power When the CTs are installed the arrow should point to the load There is no harm if the CTs are installed backwards since this can be corrected by reversing the black white leads when connecting to the GEM Paying attention to orientation will simplify the connection process especially for 240V loads using two CTs and when connecting to 3 phase systems October 7 2012 www brultech com K gt L K gt L SOURCE K Source White Black L Load CT Orientation For Micro 40 Micro 80 amp Micro 100 Copyright 2012 Brultech Research Inc All rights reserved Brultech Research Inc BRU lec Single Split Phase Residential System Almost every home in North America has its power supplied by a 120V 240V split phase service Transformer Feed From Power Company When installing CTs on a single or split phase system it is recommended to install them such that the arrow points toward the load as illustrated in the diagram below Following this rule will simplify the task of polarizing the CTs if more than one CT is connected to a given channel such as would be the case for 240V loads Some 240V loads may be monitored with a single CT as long as it does not required a neutral conductor which is common for many water heaters baseboard heaters and some water pumps 120V 240V Split Phase System CT 1 Breaker SZ Neutral Breaker o
3. All rights reserved Brultech Research Inc BRULE C H Both CTs must be of the same model For example although Micro 100 and Micro 40 CTs are both Type B CTs they may no be combined on a single channel CT1 Jumper x2 Jumper x2 cM OR ch M GA P aN LO P annus a PM 4 P CT2 CT2 O Type B CT Connection For single or split phase only It is important to pay attention to the lead polarity when more than one CT is connected to a single channel If a mistake is made with regards to lead polarity there will be no harm or damage as a result The consequence of this is that the current from one CT will be subtracted from the other For example CT1 monitors a 60W load and CT2 monitors a 100W load Improper polarity will cause the GEM to display this as a 40W load instead of 160W which is the sum of both loads It is very easy to correct such a situation Remove the leads of one CT only and swap the two leads insert the black wire where the white wire was previously and vice versa Sometimes it is just as easy to take the 50 50 chance a make a quick check by simply disconnecting one of the CT leads while observing the power watt If the power increases when the CT lead is removed then simply swap the polarity on one CT only This should result in an increase in power providing there is a load on this circuit October 7 2012 21 www brultech com Copyright 2012 Brultech Research Inc All rights reserve
4. Dallas DS18B20 sensors These sensors can share a common 3 conductor cable The picture on the right shows a typical temperature sensor available from http www adafruit com October 7 2012 www brultech com Copyright 2012 Brultech Research Inc All rights reserved Brultech Research Inc BRULE C H Communication The GEM offers a multitude of communication options to transfer the monitored data to its destination Two separate ports each providing various communication options are provided RS 232 WiFi optional will soon be discontinued due to erratic performance of Roving Networks RN 171 WiFly Module Ethernet optional Combination WiFi and Ethernet module optional recommended ZigBee via XBee modules from Digi com optional A PCB header for custom options i a oe October 7 2012 www brultech com Copyright 2012 Brultech Research Inc All rights reserved Brultech Research Inc BRULLE C H Where to Start It is very important to plan the installation of the GreenEye Monitor GEM The guide below will help ensure a smooth installation Read and UNDERSTAND the safety information This is the most important step Not only will this help ensure that the installation will be according to local codes but will also prevent injury fire or fatality Power up and establish communication before installing This mainly applies to systems using WiFi or ZigBee wireless communication It is recom
5. a 3 byte up counter Counter wraps around when full Ce pulses Counter Volatility Counter values are stored in RAM and preserved by battery power when a power interruption occurs 44 October 7 2012 www brultech com Copyright 2012 Brultech Research Inc All rights reserved BRULE C H Brultech Research Inc Temperature Sensing Temperature Sensor 8 Channels Channels Sensor Type Uses 1 Wire Bus system Compatible with the following 1 Wire sensor types e DS18B80 e DS18S80 1 Wire Bus Uses three push terminals e GND e DATA e 5 VDC 1 Wire devices are connected in parallel For more info visit http www 1wire org Conversion Interval All temperature sensors perform a temperature conversion every 16 seconds Sensor Read Interval Each enabled temperature sensor is read once every 64 seconds One of eight temperature sensors is read every 8 seconds hence 8 X 8 64 sec Temperature Units The GEM may be configured for Celsius or Fahrenheit degrees Temperature Resolution 0 5 C resolution Fahrenheit degree values are derived from the C value and converted to 1 decimal point accuracy Communication Standard e RS 232 via COM1 and RS 232 via COM2 Communication e 19 200 baud 8 bits no parity one stop bit 8N1 Ports e GND TX RX no hardware flow control e Connection via push terminals Optional Board SMT Uses Roving Networks RN 171 WiFly Module Soldered WiFi Module e Receive Sensitivity 83dB typical e Output Power 12 dB
6. between Neutral and Line2 October 7 2012 28 www brultech com Copyright 2012 Brultech Research Inc All rights reserved Brultech Research Inc BRULE C H The important step is to note which phase or Line connects to the outlet which powers the PT This is the reference and will always be considered Phase A when configuring the GEM For example in the diagram above the 120V Outlet is connected to Line2 therefore the circuit that CT 3 which is connected to the Line2 load is sensing will be configured for Phase A In this example since Line2 Phase A then Line3 Phase B Linel Phase C Based on this example the channel that CT 1 is connected to will be configured for Phase B and CT 2 channel will be configured for Phase C To summarize here are the possible combinations 120V Outlet for PT 120V Outlet for PT 120V Outlet for PT connected to Linel connected to Line2 connected to Line3 Linel1 CT Phase A Linel CT Phase C Linel1 CT Phase B Line2 CT Phase B Line2 CT Phase A Line2 CT Phase C Line3 CT Phase C Line3 CT Phase B Line3 CT Phase A October 7 2012 29 www brultech com Copyright 2012 Brultech Research Inc All rights reserved Brultech Research Inc Bro lH ECH CT Connection Four Wire WYE System Depending on the CT type used the color code for the connecting leads should be as indicated in the table below When setting up to
7. by a special timed command sequence or simply by momentarily pressing the GEM s push button switch 14 GreenEye Monitor Communication Section The GreenEye Monitor has two communication Optional ports available COM 1 and COM 2 These ports XBee may be shared with optional communication Module modules COM 2 Optional PCB may be added to provide other communication options such as Optional Ethernet USB Zwave RF etc Communication DB 9 Connector female Uses Pins 2 3 and 5 Rx 2 To Tx Tx2 To Rx Rx1 To Common Tx1 RS 232 Common Antenna WiFi Module Model GEM W only October 7 2012 35 www brultech com Copyright 2012 Brultech Research Inc All rights reserved Brultech Research Inc BRODEcH RS 232 Port Every GEM device comes with two RS 232 ports The RS 232 port may be used to connect directly to an automation system a Serial to Ethernet device such as EtherPort or to a serial to USB adaptor Either of these ports may be used at the main communication gateway or simply to configure the GEM the GEM s optional WiFi module or the GEM s optional XBee module The GEM is capable of being put in Bridge Mode which causes Com1 and Com2 to be linked together so that the RS 232 port can talk directly to a module on the opposite port Connection to the RS 232 port is accomplished via terminal blocks 8 in the layout section Typ
8. is based on a header provided with UART access for those requiring a custom solution such as RS 485 Z Wave or other such solution Along with all of the hardware options the GEM offers various packet formats and APIs for communicating with data hosts COM Ports The GEM uses two communication ports COM1 and COM2 In general data from both ports are identical GEM lt gt COM Data i l Communication lt gt COM2 Each COM port is accessible via one of two RS 232 ports RS 232 1 and RS 232 2 Any of the optional communication options described previously will share a com ports with its corresponding RS 232 port For example the RS 232 1 connection will receive the same data as that being sent to the WiFi module This means that when the GEM sends a data packet or response to a command the data will be transmitted via WiFi and RS 232 1 serial port See diagram below FAN sc Ix RS 232 1 2 z COM1 Antenna WiFi Module lt gt Figure x If command data is sent to the GEM via the RS 232 1 serial port the WiFi module will not hear this command The same applies if data is sent to the GEM via WiFi See diagrams below gt RS 232 1 gt RS 232 1 gt Got W ek di A A WiFi Module lt owe Module lt October 7 2012 32 www brultech com Copyright 2012 Brultech Research Inc All rights reserved BRULE C H Figure x The same concept applies to other shar
9. is in the OFF position The following rules MUST be obeyed e Any work performed inside the electrical panel must be done by an electrician or qualified individual This individual will be familiar with the local electrical code and perform the installation accordingly e NEVER install the GreenEye Monitor GEM inside the electrical panel Only low voltage 12VAC or less galvanic isolated connections are to be made to the GREENEYE MONITOR GEM terminals e The current transformer CT leads must exit the electrical panel through an appropriate box connector strain relief or bushing The CT leads must be properly anchored on the outside of the panel e The portion of the CT leads inside the panel must not have any damage cuts or wear to the outside insulation e The CT leads must be routed in such a way that its insulation will not be rubbing against live terminals Care must be exercised not to pinch the CT leads especially when re installing the panel cover e Do not install the CTs in panels with voltages greater than 300V e Do not install the GREENEYE MONITOR GEM in a wet location October 7 2012 10 www brultech com Copyright 2012 Brultech Research Inc All rights reserved Brultech Research Inc BRULE C H Compliance The GreenEye Monitor models GEM W and GEM E have been Tested to Comply with FCC Standards For Home and Office Use This device complies with Part 15 of the FCC Rules Operation is subject to the fo
10. or GET methods e Efficient binary packet options available e Packet formats available for custom software development e Custom packet formats may be available based on the project size Setup and Setting Commands e Documentation available listing the commands used to read or write GEM setup parameters Firmware upgrades may be accomplished using any of the communication options above including USB if a serial to USB adaptor is available Custom communication solutions are available via a 10 pin header or XBee socket header providing access to UART TTL COM1 or COM2 ports NOTE Contact Brultech support before attempting to use these headers Improper use may damage the GEM and void warranty Volt and Current e 5VDC 5 UL CSA approved e 1 5A AC Adaptor typically uses less than 200mA depending on communication module used Consumption e Typically less than 1 watt Power Connection e 2 1mm xX 5 5mm barrel jack center positive standard October 7 2012 46 www brultech com Copyright 2012 Brultech Research Inc All rights reserved BRULE C H Isolation LED Indicators Battery Memory Backup Operating Temperature Humidity Enclosure Material Dimensions Weight GEM Device Only FCC Certification Brultech Research Inc e Optional power connection via mini USB jack instead of barrel jack e The GEM must not be installed in the electrical breaker panel e All connection to the GEM mu
11. used as an alternative to the 3 5mm jack 3 providing the PT signal is in the 333mMVAC 333V range This USB jack us dual duty and may also provide an alternative to the 5 Volt DC power supply jack 5 5 GEM Power Supply Input This 2 1mm X 5 5mm barrel jack is for the 5VDC supply connection The center pin is the positive connection 6 Power Supply Access Terminals This four terminal block provides access to the GEM s 5V and 3 3V supply This is reserved for future options and special applications 7 1 Wire Bus and RS 232 Ground Terminal This four terminal block possessed the three connections for the 1 Wire bus and also the Common Ground connection for the RS 232 connection 8 8 RS 232 Connection This four terminal block encompasses the receive RX and transmit TX lines for both RS 232 COM ports 9 Optional COM Module Header This 10 pin 2mm pitch header provides access to the UART and power supply providing an interface for alternate communication modules This header should only be used with available modules Please contact Brultech if you wish to design a custom communication interface using this header October 7 2012 14 www brultech com Copyright 2012 Brultech Research Inc All rights reserved Brultech Research Inc Baro le ECH 10 Optional WiFi Module The model GEM W includes a WiFi communication module 11 XBee Module Socket The GEM may be fitte
12. wall transformer with lt 2 degree phase error PT Optional PT part number PTO1 may be ordered e 1 accuracy e Input voltages between 120V to 480V e 600V rated leads Load System Types Single and Polyphase systems System Frequency 50Hz or 60Hz Default is 60Hz May be configured for 50Hz via setup software Resolution Power 1 Watt Energy 1 Watt Second 000000277 kilowatt hour Voltage 0 1 Volt NET Metering All channels are capable of NET metering Two sets of watt second counters are used for energy flow direction Watt Second Counters Each channel has two 5 byte incrementing watt second counters one absolute and one polarized Counter wrap around occurs after 2 watt seconds or 305 419 kilowatt hours Pulse Counting Pulse Counting Channels Four Individual pulse counters e Two dry contact inputs e Two DC pulse inputs Counter Input Counter 1 and 2 e Requires DC pulses e Galvanic isolated from GEM system via opto isolator e Requires DC pulses between 3 5 and 24VDC 5VDC ideal Counter 3 and 4 e Requires dry contact closure from reed switch relay etc e Input is not isolated from the GEM power supply therefore connection to this input must be isolated from the pulse source s power supply This is typical when using reed switches Pulse Frequency Less than 1pps pulse second Subject to change Pulse Width Duration Minimum pulse duration 550ms Subject to change Counter Registers Each counter has
13. 2 lt gt COM Port Bridge Mode For setup purposes there is a method whereby a serial port or communication device can talk directly to one another as long as each is on a different COM port This is done using Bridge Mode This mode creates a virtual connection between a COM1 and COM 2 device Antenna Antenna XBee GEM in Module Bridge Mode Virtual Connection Between COM Ports Serial Cable RS 232 2 lt gt The purpose for this is to enable setup or firmware upgrades for specific communication devices For instance an XBee module s firmware may be upgraded by connecting to RS 232 1 and bridged to communicate directly with the XBee October 7 2012 34 www brultech com Copyright 2012 Brultech Research Inc All rights reserved Brultech Research Inc BRULE C H module Another common use would be to connect to the RS 232 2 port and setup parameters for the WiFi module if present Bridge mode is baud independent which means that the virtual wire section will work at any common baud rate without any required configuration The baud rate setting for each device must however be the same For example if you are bridging an XBee module to setup the WiFi module both devices must be set to the same baud rate Bridge mode does not support hardware flow control When the GEM is in bridge mode it no ceases all operations and only operates as a bridge Bridge mode is exited
14. Brultech Research Inc GreenEye Monitor Manual Preliminary Incomplete Energy Consumption Monitor With Pulse Counter and Temperature Sensing Inputs October 7 2012 www brultech com Copyright 2012 Brultech Research Inc All rights reserved Brultech Research Inc Bro le ECH NAT EO Uer d e E 4 OVS VIC ee 4 len EE 6 CUBE Lee EE 6 SIS e 6 MI REN lee E 6 Eet ee E 6 OTANI 19 a NEE 7 WNES TO SLAIN GE 8 Read and UNDERSTAND the safety informati n isccsiesseasds dcsnactavasanctacusnandsdoiuedssedseaukeansosatscudancbanincdesectanadaradaidiacdsoactadabsnd avasaacsees 8 Power up and establish communication before installing ccccccccssssecccceeseeccccseseccessessececseeseecesseeeeeeesseeaeeeessaaaecessageeeeees 8 Plan the mounting location for the monitor taking into consideration the CT lead length cesccccccssseeceeeeeeeeeeeseeeeeeeees 8 important Safety INTOLMATION sssaaa EEE TEA 10 GOIN WINGS E 11 Overview Layout E 12 CC FCO mine la POU a a E E acadeinnatadeuinaauhannssssavesisdh aaeeeramnedcaaseeeeradions 13 Sak e ag gue EE 13 2 Potential Transformer PT TAD E 14 4 Alternate Potential Transformer PT And 5VDC Supply Input cccccccccccccessssecccceeeeeeseeeceeeeeeeeeseceeeesseeeesseeeeeeeseuenaseeees 14 ey RET SLY Power Supply ne EE 14 6 Power Supply Access Terminals ccccccsssssseccccccccessseeccceeecaussseeccccesaueesecceeeeesaeaseeeeceeeesuesseecceseeauans
15. ODO EE 36 Pe Ss OUT ODOT EE 37 EMIS VOICE ODO scr a A E A E E E 37 Combination WiFi Ethernet Option ssssssrsrerrrrrrrrrrrrrrrrrrrrrrrtrtttrtrtrtrtrtttrtrrrrrrrrrerererererrrrrerererens Error Bookmark not defined Custom Com PCB HEAD siiseicssssinswssasaavinndavennvaparaveuebeveasvepawatniad EE E E E 37 See Te E 38 COM Processor Firmware WO BAGS acces cet ates tater eantesnneasatteeenueentaciacietneuasehsundeeeaeaca wand taniei eelicactediernawnldutonvan ees nnesaadoncesierraceceeioge 38 Recovering From Corrupt COM Firmware sssssessesseesrreressessresrrosessressesreoseoseesresrrereoseosreerroseoseesreereeseosresreereoseeseesreereeseeseesree 41 ENG Processor Firmware Weta 6 seroren a EEE tive see ae ee een 41 Recovering From Corrupt ENG Firmware ccccccssccsscccsecceeeenseeeeeeeeeeeeeeeeeeeeeeeeeeseeeeeeeeeeeeeeeeeeeeeeeeeseeeseeeeeaeeneeeseeseeaeenaeeeeeeeaaess 42 Technical SO CCH CALI EE 43 POC Ei 43 ET 44 WWMM aE SIS EE 45 Reinig e E 45 REVI SV SCCM E 46 Channel Assignment Worksheet esesessssesesececscsesecececscsesecececscsesesececscsesesecececsesesecececsesesecececsesesecececsesesesececsesesesececseseseseceee 48 October 7 2012 3 www brultech com Copyright 2012 Brultech Research Inc All rights reserved Brultech Research Inc BRULE C H Introduction The GREENEYE MONITOR GEM Home Energy Monitor is a multi channel power meter designed to measure the consumption of residential service panels and or pane
16. T Power Supply The jack is configured such that the GEM may be powered using 5VDC USB power connection The standard USB D and D connections are used to supply 333mVAC potential transformer signal October 7 2012 www brultech com Copyright 2012 Brultech Research Inc All rights reserved Brultech Research Inc LGS ER Power Supply Input Power to the GEM is supplied via a 2 1mm X 5 5mm barrel plug from a 5VDC power supply center is Alternately power may be supplied by the mini USB jack instead of the barrel jack not both at the same time These two supplies are connected together on the PCB It is recommended to use the supplied transformer Id a substitute is to be used it MUST be UL CSA USA Canada certified or whatever certification applies to your Country Power Supply Access Terminal Block A terminal block provides access to the GEM s 5VDC and 3 3VDC power supplies It is recommended not to use these terminals unless examples are provided in this document The purpose of these terminals is to provide power for future options October 7 2012 25 www brultech com Copyright 2012 Brultech Research Inc All rights reserved LTE Brultech Research Inc CT Installation All of the Brultech CTs have a marking K gt L except for the Micro CTs This mark is used to specify the orientation of the CT when installed K signifies the source which is where the power is coming from and
17. Z Wave etc Additionally the PCB developer may wish to include a processor on board to incorporate proprietary API functions security etc The header consists of a 10 pin female socket with a 2mm pitch Ground Common Vcc 3 3V COM 1 Reset output Low Active COM 1 CTS Flow Control input COM 1 Tx output COM 1 Rx input COM2 Tx output Green LED hi active Yellow LED hi active 10 COM2 Rx input 2 ae eS Se NOTE Please contact us for more information before using this header Improper use may damage the GEM October 7 2012 37 www brultech com Copyright 2012 Brultech Research Inc All rights reserved Brultech Research Inc BRU lec Firmware Upgrades It is very important establish a robust communication link with the GEM before performing firmware upgrades The GEM has two processors COM and ENG Each processor has its own specific firmware with GEM_C or GEM_E as part of the filename followed by the version number Example e COM firmware file GEM_C Firmware 1 59 fmw e ENG firmware file GEM_E Firmware 1 36 fmw It is not always required to upgrade both processors Typically the COM processor may require upgrades as more features are made available The ENG firmware may not need to be upgraded Firmware upgrade is accomplished using a PC in conjunction with the GEM Setup Application This program is a Java jar application which runs on Windows Linux or Appl
18. are installed on the power feed from the Utility Company providing total house consumption Optionally other sensors may be connected to provide temperature or water gas consumption Two supplies are used one 5V supply to power the GEM and the second to monitor the power line voltage for accurate true power conversion The GEM converts the data from the sensors and makes it available to a host The host could be one or more of the following e A website dedicated to monitoring displaying and charting consumption information e A local web server We have available a small powerful web server which consumes less than 5Watt to operate That s less than 2 cents per day e Personal website e Local PC e Home automation system e Smart phone via one of the above options e Your own custom solution We provide API information upon request There is a variety of options available for communication depending on the server option chosen and wireless range The communication options are e Two RS 232 COM ports via push terminal block e Wifi communication optional e Ethernet connection optional e XBee Module for ZigBee communication optional October 7 2012 5 www brultech com Copyright 2012 Brultech Research Inc All rights reserved Brultech Research Inc BRULE C H The sensors Various sensors may be used with the GEM e Current Sensors e Voltage Sensor e Pulse Output Devices e Temperature Sensors Cur
19. are requiring the GEM to be setup as a server The Ethernet module may be configured using the EtherX Configuration software available on our website Combination WiFi and Ethernet Communication Option This preferred option provides a robust WiFi and Ethernet connection Configuration is done via web browser connected to the internal website Both options may be used simultaneously Both options use COM1 leaving COM2 open for RS 232 or XBee module XBee Module Option The XBee module provides a wireless link using ZigBee communication via mesh network The GEM incorporates a module socket for easy installation of the two most popular module types whip antenna or RPSMA antenna connector The baud rate must be changed from XBee s default 9600 baud to 19 200 baud Since the ZigBee protocol has a limited data throughput and the GEM packets are fairly large the GEM may be configured to send ZigBee data in specified chunk sizes along with a specified time between chunks Hardware flow control may also be enabled to further protect the module from buffer overrun Custom Com PCB Header There is a footprint on the GEM to accept a custom designed communication circuit board This is available only if the GEM does not have a WiFi or Ethernet module installed The purpose for this footprint is to allow the development of a custom communication circuit board which would allow an alternate communication method such as RS 485 RS 422
20. ause harmful interference and 2 this device must accept any interference received including interference that may cause undesired operation Depending of the GEM options the following wireless modules may be installed in the GEM e Roving Networks WiFly Module FCC ID T9J RN171 e Digi International XBee Module FCC ID OUR XBEE2 e WiFi Module FCC ID AZYHF A111 October 7 2012 47 www brultech com Copyright 2012 Brultech Research Inc All rights reserved Brultech Research Inc BRULLE C H Channel Assignment Worksheet ijji 7 w wl Ni nm NI NI NI NMI NMI NIN PLR RP P Pl K l ete kA R N N 7 gt ECH E October 7 2012 www brultech com Copyright 2012 Brultech Research Inc All rights reserved 48
21. ch com Copyright 2012 Brultech Research Inc All rights reserved Brultech Research Inc EBRAR UIE ECH If for any reason the GEM stops responding midway through the upgrade wait several seconds since there may be a pause in data transfer when using WiFi or XBee If there is no response for 1 minute or so and the upgrade has not completed Something may have occurred to corrupt the firmware If so follow the procedure in Recovering from corrupt COM firmware section below Recovering From Corrupt COM Firmware Firmware may become corrupt if data communication is interrupted while upgrading firmware In the event that this happens the GEM will not function properly if at all There is a special procedure used to recover from such scenario Remove power 5VDC from the GEM Remove the CR 2032 battery While holding down the PB switch power up the GEM Once the GEM is powered release thee PB switch The system LED left will glow a solid red Establish a robust communication link between the PC and the GEM oY at SS lS a Make sure the Corrupt Firmware checkbox of the GEM setup program is checked ENG Processor Firmware Upgrade The procedure for upgrading the ENG firmware is the same as that for the COM firmare described above with the following differences 1 Once acommunication link is established send a Reboot COM command This is done by clicking the Debug menu and clicking Reboot COM command 2 In
22. d Brultech Research Inc BROpTeEcH Pulse Count Inputs The GEM has four pulse count inputs Pulse counter 1 and 2 are totally isolated from the GEM ground and circuit Either of these two inputs require a DC pulse signal between 3V and 24VDC Pulse counters 3 and 4 are dry contact type counters These inputs require switch contacts not connected to any power source such as relay contacts or magnet switch contacts Very low voltage from the circuit SVDC is used to complete the circuit Counter 4 Cou nter 3 Pulse Counter 1 Pulse Counter Terminal W October 7 2012 www brultech com Copyright 2012 Brultech Research Inc All rights reserved Brultech Research Inc BRO le Ecru Potential Transformer PT Input The potential transformer is responsible for providing a low voltage image of the line voltage to the GEM for accurate true power calculations This signal must be galvanic isolated to maintain safe low voltage to the GEM A 120VAC to 12VAC UL CSA wall transformer North America is used as a potential transformer and is included in the GEM package Since the step down ratio is not identical for all wall transformers of the same model the PT Type setting may altered slightly to improve voltage accuracy This requires a true RMS DMM connected to the line voltage as a reference The PT Type value is increased or decreased slightly until the voltage displayed by the GEM matches the voltage at th
23. d with Digi s XBee or XBee Pro modules providing ZigBee communications An opening is also included in the enclosure in should a module with external antenna is used 12 Battery Holder A CR 2032 battery is used to retain data under power outage conditions 13 System and Communication LEDs The left tri color LED is used for System Status The two color LED on the right side provides Wifi status if this option is present or other status depending on the Ethernet option included 14 Push Button Switch The push button switch stem is accessible from outside the enclosure The purpose of this switch is to provide some optional settings when a communication link is not yet configured or available This switch is also used for exiting bridge mode Anytime the communication is put into bridge mode which couples Com1 communication to Com2 any press of the switch causes the GEM to exit bridge mode The switch is also used to recover from situations where communication is lost while upgrading the COM processor s firmware thereby corruption the firmware The push button switch is then pressed while power to the GEM is cycle allowing a fresh start to upgrading the firmware Please follow the appropriate instructions with the setup program before attempting this There are two set of three functions available Each set is entered using a specific key sequence Once the sequence has been executed and the push button has been re
24. e The PC connects to the GEM using any of the available communication links e Ethernet e WiFi e XBee e RS 232 e USB via serial to USB cable If a USB or Serial connection is used instead of a TCP IP connection a bridge application will need to be used to bridge the Serial connection to a TCP IP connection compatible with the GEM setup program As mentioned earlier it is important to have a good wireless connection when upgrading the firmware If the wireless signal is week or intermittent then it is recommended to move the wireless devices in closer proximity COM Processor Firmware Upgrade The COM processor is the GEM s main processor It is also responsible for coordinating data flow when upgrading the ENG processor There could be a situation whereby the COM processor s firmware becomes corrupt during an upgrade due to interruption in communication If this occurs the GEM will no longer be functional Fortunately there is a procedure to recover from this situation as explained later in this chapter The most recent firmware file may be downloaded from our website Notes indicating issues resolved or features added for each firmware version are also available and should be viewed before upgrading This will discourage needless upgrades if the changes do not affect your application A communication connection between the GEM and a PC running the GreenEye Monitor Setup program will have to be established If the GEM is c
25. e outlet where the PT is connected CAUTION Only galvanic isolated low voltage lt 14VAC PT certified by an accredited laboratory such as UL CSA ETL whichever applies to your Country may be used NEVER connect directly to Line Voltage from the electrical panel Failure to obey these rules can cause injury fire or fatality The GEM has two potential transformer PT inputs e A3 5mm stereo phone jack e A Mini USB jack 3 5mm Phone Jack The 3 5mm PT input is the most commonly used By using its stereo capability this jack may accept two voltage ranges 14VAC and 333mVAC Typically the PT signal to the GEM will be from a 120V 12VAC UL c certified wall transformer It will connect to the GEM using a 3 5mm mono plug Potential transformers will also be available with primary line voltage from 120VAC to 480VAC with an output signal in the 333mV to 666mV range These PTs are fitted with a stereo plug making connection via ring and sleeve only tip not connected This allows the GEM to use the lower PT range There is a two pin jumper located near the 3 5mm jack to change the 333mV range to 666mV This jumper should be pre installed based on the PT being used October 7 2012 23 www brultech com Copyright 2012 Brultech Research Inc All rights reserved Brultech Research Inc IECH Mini USB Jack The mini USB jack is NOT a USB communication port The USB jack is for future option of a combined P
26. ed COM ports Here is a summary of how the COM ports may be shared Brultech Research Inc COM11 is connected to RS 232 1 and may be shared with only one of the following optional devices e WiFi Module e Ethernet Module e Combination WiFi Ethernet Module e Custom PCB connected to the 1 X 10 pin header 3 3V TTL level signal NOTE Improper connection to the header may damage the GEM and void warrantee Consult Brultech before experimenting with this port WiFi Module lt Serial Cable RS 232 1 lt gt October 7 2012 www brultech com Antenna OR Ethernet Ethernet Cable Module Ke OR Custom Com Circuit Brd 1 X 10 Pin Header 3 3V UART TTL signals OR Antenna Combination WiFiand Dag ee TS Re Ethernet lt gt Module Ethernet Cable Copyright 2012 Brultech Research Inc All rights reserved Brultech Research Inc BRULE C H COM2 is connected to RS 232 2 and may be shared with only one of the following optional devices e XBee Module e Device compatible with the XBee module footprint and pin out e Custom PCB connected to the 1 X 10 pin header 3 3V TTL level signal Improper use may damage the GEM and void warrantee Consult Brultech before experimenting with this port Antenna Custom Com Circuit Brd 2 X 10 Pin Header Zeg A OR 1 Xx 10 Pin Header 2mm Pitch Module 3 3V UART TTL signals 3 3V UART TTL Serial Cable RS 232
27. etup Recall user2 Settings Send AT command to XBee Module to search for ZigBee PAN ATNRO Yellow Recall user3 Settings Send reset reboot e g dul E 2 modules FUNCTION if PB is Return to normal Return to normal NOT pressed during operation operation the flashing sequence October 7 2012 16 www brultech com Copyright 2012 Brultech Research Inc All rights reserved Brultech Research Inc BRO le Ecru Current Transformer CT Installation Important The current transformers are installed inside the electrical panel The CTs MUST be installed by a qualified individual Read the Safety section at the beginning of this document CT Connection to the Terminal Strip NOTE The CT leads must be stripped approximately 10mm 0 4 and have a gauge size between 18 and 26 AWG 10mm 0 4 The GEM uses spring loaded terminal blocks The CT leads must be stripped the proper length If the leads have stranded wire it is preferable to tin the wire Wire Gauge sll Terminal before hand to prevent dealing with frayed ends Tinning is the process of adding 18 26 AWG Block solder to bond all of the strands together Connecting the CT leads to the terminal strip 10mm 4 1 Align the two lead ends with the terminal holes This can be done one lead at a time however its seems to be easier inserting both leads at the same time providing they are nicely tinned with no frayed ends
28. ically only one RS 232 port would be used therefore there is only one common GND connection available WiFi Communication Option NOTE This option will soon be discontinued due to erratic performance of Roving Networks RN 171 WiFly Module The model GEM W is equipped with a WiFi module The module is initially configured so that a PC with WiFi can connect to it in ADHOC mode for the purpose of setting it up to access a local wireless router Once this setup is completed the GEM then connects to the WiFi router as a client Before the WiFi module is configured you must determine the destination for the GEM data This destination is where the data will be hosted such as e Aenergy monitoring hosting site check it ca smartenergygroups com etc e Brultech local web server dashboard e Your own personal website e A local computer The WiFi module communicates via COM1 port therefore if RS 232 communication is required COM2 RS 232 should be used October 7 2012 36 www brultech com Copyright 2012 Brultech Research Inc All rights reserved Brultech Research Inc EBRAR UIE ECH Ethernet Module Option The Ethernet module provides a robust connection to a network or PC It is typically setup as a client although it may be configured as a server The mode selected mostly depends on the data hosting method selected Currently our options consist only of client mode applications although some customers have created custom softw
29. l circuits The measured data is then transferred to a computer or internet server for storage analysis and real time display The primary function of the GEM is to monitor electrical energy consumed Additional inputs have been included to measure other consumables such as water gas and propane providing there is a pulse signal available from such devices The GEM also provides a 1 Wire Bus which accepts low cost sensors to monitor temperature from various rooms and outdoors The GEM processes all of the measured data then sends it to a host computer server or website for display and analysis Overview The basic function of the GEM is to 1 Read and convert the sensor signals to real world values 2 Process the acquired metrics 3 Forward the data to a host for access via computer internet automation system or smart phone _ WiFi or Abee Wireless optional Electrical kams Oe P Panel Ethernet Connection optional HALE RS 232 Connection Local B 120V ETI Senai Receptacle a 5VDC Power Supply LU LI 2 e HN me NOTE Only low voltage galvanic isolated signals are connected to the GreenEye Monitor October 7 2012 www brultech com Copyright 2012 Brultech Research Inc All rights reserved Brultech Research Inc BRULE C H The current sensors CT are small non obtrusive devices installed in the electrical panel on each circuit breaker circuit Two larger CTs
30. l number is printed on the circuit board The terminal blocks have four terminals each This is where the CT leads connect to the GEM The terminals are numbered 1 4 although not marked directly on the terminal block The legend below should be used as a guide The terminal number to be used will vary based on the Type of the CT and the number of CTs connected to a given channel IMPORTANT The CT leads must be stripped back 10mm for proper connection to the terminal block See Connecting CT to the terminal blocks section 2 Pulse Counter Inputs The GEM has four pulse counting inputs Pulse signals may be acquired from certain water gas or electric meters to indicate the amount of consumption Pulse channels 1 and 2 are designed to accept voltage pulses and channels 3 and 4 are pulsed using dry contact closure See Pulse Counting section October 7 2012 13 www brultech com Copyright 2012 Brultech Research Inc All rights reserved Brultech Research Inc BRU lec 3 Potential Transformer PT Input The GEM may receive the PT signal from the 3 5mm phone jack 3 or via the mini USB connector 4 The 3 5mm jack is a stereo style jack providing two voltage range options depending on the PT used See PT section for more information 4 Alternate Potential Transformer PT And 5VDC Supply Input NOTE This is not a standard USB port for communication This mini USB jack may be
31. later in this chapter The diagram below illustrates a very simple installation Typically the installation will involve using more current sensors to measure as many electrical loads as possible October 7 2012 www brultech com Copyright 2012 Brultech Research Inc All rights reserved Brultech Research Inc BRULE C H Important Safety Information The GREENEYE MONITOR GEM operates as a Class II low voltage device This requires that all external connected signals be a low voltage lt 50V and provided by Class Il approved power supply and sensors WARNING i All of our power supplies are UL CSA or UL c approved for use in USA and Canada Most of our current transformers CT are UL c listed No direct Read All Of The Safety Rules Before line connections to the GEM are allowed All signals must be galvanic Installing isolated from the power line Never install the GEM inside an electrical panel A separate low voltage panel may be used when needed L The GREENEYE MONITOR GEM installation requires the installation of current transformers CT d installed inside the electrical service panel This portion of the installation MUST be performed by a qualified electrician or individual The installer must follow all local safety codes and use proper safety practices and equipment The qualified installer must be aware that main panels may still contain dangerous voltage levels even though the main breaker
32. leased the system LED will generate the following sequence e Flash RED three times function 1 option then e Flash GREEN three times function 2 option then e Flash YELLOW three times function 3 option then exit the sequence and return to normal operating mode If the switch is briefly pressed during any of the flashing sequences the option relating to the corresponding color will execute For example if the switch is momentarily pressed during the green sequence the GEM will execute the green option As mentioned before there are two set of functions Each set is entered by executing a unique key sequence The WiFi function is entered by pressing the switch and holding in ON for 6 seconds Once the switch is released the LEDs will perform the flash sequence as detailed above green red and yellow each flash three times in a row October 7 2012 15 www brultech com Copyright 2012 Brultech Research Inc All rights reserved seule Brultech Research Inc Ea Fi us TE C H Push Button Press PB switch for 5 Press PB briefly four Sequence Required seconds then release times in a row at 1 to Enter Option seconds intervals The red LED should come on each press System LED Flash Red three times Red three times Sequence Green three Green three times times Yellow three Yellow three times times Return to Return to normal normal operation operation FUNCTION if PB pressed while flashing initial s
33. llowing two C conditions 1 this device may not cause harmful interference and 2 this device must accept any interference received including interference that may cause undesired operation Wireless Versions Contains FCC ID OUR XBEE2 USA Wireless Versions Only Contains Model XBee ZNet 2 5 Radio IC 4214A XBEE2 Canada May Contain Roving Networks WiFly Module FCC ID T9J RN171 May Contain FCC ID AZYHF A111 October 7 2012 www brultech com Copyright 2012 Brultech Research Inc All rights reserved BROpDeEcH Brultech Research Inc Overview Layout The diagram below illustrates various items and sections of the GEM circuit board This chapter describes each numbered section October 7 2012 Current Transformer Connection 32 channels www brultech com Optional XBee Module System LEDs Ethernet Status LEDs R 2032 Battery Wifi Module Model GEM W only RS 232 Com2 RS 232 Com1 Com GND 1 Wire Bus CO 5VDC 3 3VDC Supply Access O Power Supply 5VDC lt USB Jack used for optional 5VDC Power PT combined supply lt 42VAC 333mVAC 50 60 Hz Pulse Counter Channel 3 amp 4 Pulse Counter Channel 1 amp 2 Push Button Switch Copyright 2012 Brultech Research Inc All rights reserved Brultech Research Inc BrRotecu 1 CT Connection Terminals This section is composed of 32 terminal blocks one for each of the power monitoring channels The channe
34. m e Serial Communication 19 200 baud e On board wire whip antenna Ethernet Module Uses third party Ethernet Module e Supports TCP UDP ICMP IPv4 ARP IGMP PPPoE Ethernet e Client Server and Mixed modes Default is Client mode e 10BaseT 100BaseTX Ethernet PHY e Configured via UDP using simple setup application 45 October 7 2012 www brultech com Copyright 2012 Brultech Research Inc All rights reserved BRULE C H WiFi Ethernet Module XBee ZigBee Module Data Communication GEM Firmware Upgrades Alternate Communication Options GEM System Power Supply Brultech Research Inc Provides Both Wifi and Ethernet Options simultaneously e Support 802 11b g n wireless standards e Output Power o 802 11b 20dBm o 802 11b 18dBm o 802 11b 15dBm e Web Configuration Page e Supports WEP WPA PSK WPA2 PSK WAPI e Encryption WEP64 WEP128 TKIP AES e RP SMA 2dBi external antenna e Socketed for Digi International XBee ZB modules e Accepts any of the three ZB 24 module antenna options e Communicates at 19 200 baud e Hardware flow control may be enabled e GEM setup option provides the option of chunking data to XBee modules in order to limit data flow restrictions inherent with ZigBee protocol Real Time Data e May be configured to push energy usage data at a user defined interval or pull data via API e Various data packet formats available e May be configured to post data using POST
35. mended to simply power up the GEM without any sensors connected while in close range to the WiFi router or ZigBee coordinator whichever applies and configure the SSID IP address etc This will help decipher any possible range issues if there are problems with the wireless connection Plan the mounting location for the monitor taking into consideration the CT lead length It is important to consider where the CT leads will be routed when choosing a location to mount the GEM If mounted to far away the Main Panel CT leads may not reach the terminal strips The best location is usually as shown in the pictures below Main Panel ENVIA e wi t TT H JE iz TH fl 8 CANE N SPLIT 200 CTs have longer leads than Micro CTs SPLIT 200 CTs have longer leads than Micro CTs October 7 2012 8 www brultech com Copyright 2012 Brultech Research Inc All rights reserved Brultech Research Inc EBR ULEC H Identify the mounting area for the GREENEYE MONITOR GEM A WARNING Identify the breaker panel circuits you will be monitoring Occasionally circuit breakers are improperly identified Switch the breaker off to verify that it indeed kills the power to the load in question NEVER Install The GREENEYE MONITOR GEM Unit Inside the Electrical Panel Any GREENEYE MONITOR GEM input which will host more than one CT requires special attention so that the CT is installed with proper orientation This is explained
36. monitor a three phase WYE system or load only one CT is allowed per channel The technique used to couple two CTs on a single channel only applies for single split phase systems and NOT for three phase systems Type ACT Type B CT Type ACT Type B CT Terminal 1 White Lead Or black with white stripe Terminal 2 White Lead Or black with white stripe Terminal 2 Black Lead Terminal 3 Black Lead Displayed Polarity Once the CTs have been connected and it is time to setup the connected channels the Phase A channel should be setup first This is the CT channel which connects to the same phase as that which the PT is connected to Connect to the GreenEye Monitor using the setup program and make sure you have a connection established See Setup Software manual for more information Select System from the setup program and make sure the Polyphase option is enabled Click Save Settings Select Channels from the setup program then refresh the values by clicking the Update Summary button All CT settings and corresponding phase settings will be displayed Set the CT values type and range then set the phase values as determined by the table above Let s first concentrate on the Phase A channel Select the Real Time Data tab of the setup program Make sure that the load is consuming power and that a wattage value is displayed for phase A If the displayed watt value for pha
37. n Line2 K L K Source L Load October 7 2012 27 www brultech com Copyright 2012 Brultech Research Inc All rights reserved Brultech Research Inc BRUTE C H Three Phase Polyphase 4 Wire Wye Y System Most commercial and light industrial buildings will have three phase panels Three phase sometimes referred to as polyphase is preferred for powering large motors such as those found in rooftop AC units refrigeration units and machinery The most common system is the 4 wire Y 120V 208V feed as shown in the diagram below Pa 120V Neutral Lem Ah 120V The GEM uses a unique method of monitoring the voltage of a three phase system Typically energy monitors require all three voltages to be monitored The GEM simplifies matters by monitoring a single voltage phase The diagram above shows how the simplicity of the installation since the voltage is obtained via a wall transformer Other PT solutions are also available that allow monitoring 3 phase systems up to 480V When setting up the GEM s input channels one of the parameters required for 3 phase systems is the phase for a given channel A B or C The following paragraph describes how to determine the proper setting 120V 208V Four Wire 3 Phase System CT 1 Breaker O CH Breaker 120V 208V SUPPLY Breaker Outlet In the diagram above CT 3 will be configured for Phase A because the PT is connected
38. om Copyright 2012 Brultech Research Inc All rights reserved Brultech Research Inc BRU Tleci Type A CT Connection Again what constitutes a Type A CT is the fact that the signal produced is a voltage usually below 0 333V Single CT Connection Type A CT leads connects to terminals 1 and 2 This applies for any single Type A CT When a single CT is connected to a channel the lead polarity lead color code does not matter Type A Terminal CT Block NUA Dual Type A CT Connections CT1 nuw A aM Ww ff CT2 Type A CT Connection For single or split phase only This technique for coupling two CTs on a single channel only applies to single or split phase services This cannot be done with 3 phase systems unless the 2 CT is monitoring another load located on the same phase See 3 phase section for more information October 7 2012 19 www brultech com Copyright 2012 Brultech Research Inc All rights reserved Brultech Research Inc Bro le ECH Both CTs must be of the same model For example although SPLIT 100 and SPLIT 200 CTs are both Type A CTs they may no be combined on a single channel It is important to pay attention to the lead polarity when more than one CT is connected to a single channel If a mistake is made with regards to lead polarity there will be no harm or damage as a result The consequence of this is that the current from one CT will be
39. onfigured to send data to an online hosting site the communication module may need to be re directed to the PC unless a secondary communication method is available For example if data is forwarded to an online host via WiFi or Ethernet connection GEM COM1 firmware upgrade may be performed using any of the COM2 options such as RS 232 or XBee module If no other COM2 option is readily available the TCP IP connection will need to be redirected from the online data host s IP address to that of the PC The procedure for doing this will depend on the type of communication module used October 7 2012 38 www brultech com Copyright 2012 Brultech Research Inc All rights reserved Brultech Research Inc BRULLE C H Once a communication link is established between the GEM and the PC running the GEM setup program the procedure for upgrading the firmware is 1 Verify that the communication link is established by verifying that the GEM setup program s Connection Status indicates Connected inside the green box on the top left window of the program D Greentye Monitor Sehin V1 9 KL E Connection Staius p Setup Mode WiFi Only O TCPAP Server Port Eli C 36591 F 60Hz lt EOP gt e XBee Discove Lo Dn O Disconnect Settings amp Channels System Settings Current Settings PT Settings Firmware Version Com firmware ver 1 59 Engine 1 firmware ver 1 35 2 Click System from the left menu GreenE
40. pling Frequency Voltage sampled 20 8 kHz Current sampled 10 4 kHz Maximum Input Current Dependent on current transformer Currents greater than 1 000A may be monitored Current Transformer Type A CT with AC mV output Input e 700 mV max for single CT e 350 mV max for each of two connected CT on a given channel Type B CT with AC mA output e 103 mA max for single CT e 51 5 mA max for each of two connected CT on a given channel NOTE e Exceeding the specified input values will affect channel accuracy e Connecting a Type B CT to terminals designated for TYPE A CTs may cause a channel overload to the point that all channels display unpredictable power values Input Impedance e 1 000 ohms for Type A CT connection Terminals 1 amp 2 and 3 amp 4 e 6 8 ohm burden resistor for Type B CT connection Terminals 2 amp 3 Potential Transformer 3 5mm Jack PT Input Input e Mono plug PT signal 8VAC to 18VAC Voltages greater than 14VAC require a PT shorting jumper to attenuate PT signal e Stereo plug sleeve and ring connection tip not connected 333 mVAC without PT shorting jumper or 666MVAC with shorting jumper Mini USB Jack Input e PT signal to pins 3 and 4 of mini USB e 333 mVAC without PT shorting jumper or 666MVAC with shorting jumper 43 October 7 2012 www brultech com Copyright 2012 Brultech Research Inc All rights reserved BRULE C H Brultech Research Inc Potential Transformer GEM supplied with UL c
41. rent Sensors Current sensing is done using current transformers referred to as CT throughout this manual The CTs we use require no electrical connection since the sensed electrical current is accomplished by reading the magnetic field of an electrical conductor Voltage Sensors The powerline voltage needs to be measured in order to calculate true power This is accomplished using a single potential transformer referred to as PT throughout this manual The powerline voltage is the voltage present at the electrical receptacle typically 120V or 240V depending on the Country The PT isolates this voltage and reduces it to a safe low voltage value for the GEM to monitor Pulse Output Devices Some water gas and propane meters provide a pulse output This is a simply ON OFF signal which occurs any time an x amount of a given consumable is used For example a water meter could provide a single on off pulse for each gallon used These pulses are accumulated by the GEM to provide the amount and time of consumption If the meter does not provide a pulse signal then one can be added to existing water gas or other system Check with local utility company for rules and codes The picture on the right shows a typical water meter with pulse output available from http www temcocontrols com Temperature Sensors The GEM uses a 1 Wire bus for temperature sensing and is based on the Maxim
42. se A is a negative value then you can easily rectify this by unplugging the PT giving it half a turn and re plugging it such that the two prongs are reversed This will cause the negative value to because positive Verify that phase B and C channels have positive values such as phase A now does If this is not the case try changing the phase B channel configuration to C and likewise phase C to B This should provide positive values for all three phases Given a three phase load the total power for that load will be the sum of all three channels used to monitor it In some cases you may encounter a load such as a water heater using only two of the three phases The procedure is the same Remember that there is a possibility that the heater uses only phases B and C Again the same principle applies simply disregard the unused phase and the total power is the sum of the two phases used October 7 2012 30 www brultech com Copyright 2012 Brultech Research Inc All rights reserved Brultech Research Inc BRU lec Three Phase Polyphase 3 Wire Delta A System October 7 2012 www brultech com Copyright 2012 Brultech Research Inc All rights reserved Brultech Research Inc Baro le ECH Communication Link The GEM provides a multitude of hardware communication options such as RS 232 which is standard on all GEM models Optionally WiFi Zigbee XBee module Ethernet or other options are available The other options
43. seeeeeesauaneseeeeeeesaaggaeeees 14 7 1 Wire Bus and RS 232 Ground Terminal 14 SIR o ACONES A E E 14 9 Optional COM Eeer 14 PO OIC a WIFE Od E ear E E E NEA T EE E EE E EE E AE 15 Eh ABee MOUE EE 15 A AGS EY A E 15 13 System and Communication DR CN 15 14 Push BUTON SIN C EE 15 Current Transformer CT Installation ccsccsscssscsccssccsccecccsccscceccesccscceccesecscceccescessceccesececceccesececceccesseeccecceseescceccssesccecees 17 OO QM EE 17 TOE PAC VCO VSO EE 19 Sinele CT COMMECEO MN E 19 EAN WV TC ONC de E 19 P BG CS CUO EE 20 lee en OT SG GON E 20 DOTE og Gai Gel gig e 20 PUSS COUPE OUI EE 22 Potential Transformer EE 23 3 5mm Phone JACK EE 23 ia AB e Ae a E E E A mentee steed E auc E A E A E seven EE E N saree E E N 24 Power Suppi Input EEN 25 Power S pply Access Terminal e ei 25 CT TENS UE d ET 26 le SIE Phase Residential Syste EE 27 Three Phase Polyphase 4 Wire Wye Y System ccccssssscccccccceeessecccceeceeeessecceeeeseeeeseeceeeeeseuenseeeeeeeeeeuesseeeeeeeesuegsseeeeeeeesagges 28 CT Connection ETA dE EE 30 BY e Ee Ee 9 AY aero ener ener et nt eo a eee ere ae mee eee ene nee eee ee 30 October 7 2012 2 www brultech com Copyright 2012 Brultech Research Inc All rights reserved Brultech Research Inc Bro le ECH Three Phase Polyphase 3 Wire Delta A System 31 COMMUAI CATION ET 32 RT TP OT EE 32 COM Por BNO E tee TE 34 FRO OZ FOI EE 36 ARTS K sie inn ta le ION
44. st have galvanic isolation to the power line e Signals to the GEM must be Class2 low voltage e Current transformers CT and the Potential Transformer PT connected to the monitored electrical panel must be UL c listed and suitably rated above the maximum voltage and current to be encountered Tri color system LED left side e Displays system status packet transfer etc Two color communication device status right side e Displays status of the communication module Color sequence depends on the module installed e When no communication modules are installed only the green LED will come on when 5VDC power is present This is due to the jumper connection between pins 2 and 7 of the header 9 e CR 2032 battery used for memory backup when 5VDC power is lost e Typically drains less than 2 uA when GEM is powered down e Life approximately same as battery shelf life e Battery replacement should be done while GEM is powered up if accumulated watt second counter and time values are to be preserved e Uses EEPROM to store GEM user settings e Battery backup holds CPU ram content during power outages This includes all watt second counter and time registers Better than 0 40C TBD 5 to 95 non condensing UL94 VO ABS Plastic 9 1 8 X 7 1 8 X 2 Between 1 2 and 1 4 pounds depending on installed modules The GEM complies with Part 15 of the FCC Rules Operation is subject to the following two conditions 1 this device may not c
45. step 6 click Engine Firmware button instead of the COM Firmware button If the ENG firmware upgrade fails for any reason and the ENG firmware becomes corrupt the method for recovery is different than that of the COM firmware October 7 2012 41 www brultech com Copyright 2012 Brultech Research Inc All rights reserved Brultech Research Inc EBRAR UIE ECH Recovering From Corrupt ENG Firmware Recovery from a failed ENG firmware upgrade is different and simpler than that for the COM corrupt firmware Simply press the PB momentarily so that the SYS LED returns to green then repeat the procedure DO NOT CHECK THE Corrupt Firmware OPTION IN THE SETUP PROGRAM This option only applies to the COM firmware If the GEM is at a remote location and the PB cannot be pressed simply wait for 80 seconds as the GEM will automatically exit the ENG firmware upgrade function Again the ENG firmware upgrade can be attempted again October 7 2012 www brultech com Copyright 2012 Brultech Research Inc All rights reserved 42 BRU lec SS Brultech Research Inc Technical Specification Power Metering Number of Channels 32 expansion available in the future Measurement POWER e True or Real Power using high speed volt and current sampling VOLTAGE e True RMS Accuracy Power Energy Measurements e Typically 1 plus CT accuracy Voltage Measurement e Better than 1 with PT Type value trimmed to a reference Sam
46. subtracted from the other For example CT1 monitors a 60W load and CT2 monitors a 100W load Improper polarity will cause the GEM to display this as a 40W load instead of 160W which is the sum of both loads It is very easy to correct such a situation Remove the leads of one CT only and swap the two leads insert the black wire where the white wire was previously and vice versa Sometimes it is just as easy to take the 50 50 chance a make a quick check by simply disconnecting one of the CT leads while observing the power watt If the power increases when the CT lead is removed then simply swap the polarity on one CT only This should result in an increase in power providing there is a load on this circuit Type B CT Connection Again what constitutes a Type B CT is the fact that the signal produced is a current signal usually in the milliamp mA range Single CT Connection Type B CT leads connect to terminals 2 and 3 When only one CT is connected to a given channel the lead polarity does not matter Type B Terminal CT Block O4 anw A Dual Type B CT Connections This technique for coupling two CTs on a single channel only applies to single or split phase services This cannot be done with 3 phase systems unless the 2 CT is monitoring another load located on the same phase See 3 phase section for more information October 7 2012 20 www brultech com Copyright 2012 Brultech Research Inc
47. ye Monitor Setup V1 9 Connection Status e Setup Mode WiFi Only TCPIIP Server Port E6 Coup cert P M or OOOO Settings E Channels System Settings Current Settings Refr i E Temperature Type Pulse H i Nage 4 WiFi Single Phase Ss 3 Polyphase Packet Format List Format v Phase E Debug Send Interval 1 Sec Frequency Real Time Data Serial hee 01000345 4 Server Discovery e HTTP Packets StrtnestTne j Reset AI Counters C set Computer Tr Stop Real Time ResetPule Counters 3 Click Refresh and take note of the current firmware version 4 Click Stop Real Time 5 Click Firmware and Advanced This will open a new window October 7 2012 39 www brultech com Copyright 2012 Brultech Research Inc All rights reserved Brultech Research Inc BRUTE C H 6 Click COM Firmware A window will open Module Default Settings Firmware Module Type No Modules r you need to enter upgrade mode which can be done by either 1 Unplug your unit hold down the button and apply power or 2 Clicking the button above If you encounter any problems please contact isupport brultech com 8 Click Start Depending on the communication link it may take a couple of minutes for the upgrade to complete Pay attention to the trail of dots generated as data is transferred October 7 2012 40 www brulte
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