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Brultech Greeneye Monitor Manual

Energy consumption monitor with pulse counter and temperature sensing inputs
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Brultech Research Inc
™
GreenEye Monitor
Manual
(Preliminary/Incomplete)
Energy Consumption Monitor
With Pulse Counter and Temperature Sensing Inputs
1
October 7, 2012
www.brultech.com
Copyright © 2012 Brultech Research Inc. All rights reserved.

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Summary of Contents for Brultech Greeneye Monitor

  • Page 1 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.

  • Page 2: Table Of Contents

    CT Installation ..................................26 Single/Split Phase Residential System ............................. 27 Three Phase (Polyphase) 4-Wire Wye(Y) System ........................28 CT Connection (Four-Wire WYE System) ..........................30 Displayed Polarity ................................30 October 7, 2012 www.brultech.com Copyright © 2012 Brultech Research Inc. All rights reserved.
  • Page 3 Technical Specification ................................. 43 Power Metering ..................................43 Pulse Counting ..................................44 Temperature Sensing ................................45 Communication ..................................45 GEM System .................................... 46 Channel Assignment Worksheet ............................48 October 7, 2012 www.brultech.com Copyright © 2012 Brultech Research Inc. All rights reserved.

  • Page 4: Introduction

    Brultech Research Inc 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 panel circuits. The measured data is then transferred to a computer or internet server for storage, analysis and real-time display.
  • Page 5  Two RS-232 COM ports via push terminal block  Wifi communication (optional)  Ethernet connection (optional)  XBee® Module for ZigBee® communication (optional) October 7, 2012 www.brultech.com Copyright © 2012 Brultech Research Inc. All rights reserved.

  • Page 6: The Sensors

    The GEM uses a “1-Wire®” bus for temperature sensing and is based on the Maxim/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.

  • Page 7: Communication

    2. WiFi (optional) *will soon be discontinued due to erratic performance of Roving Networks’ RN-171 WiFly Module. 3. Ethernet (optional) 4. Combination WiFi and Ethernet module (optional) *recommended 5. ZigBee® via XBee® modules from Digi.com (optional) 6. A PCB header for custom options October 7, 2012 www.brultech.com Copyright © 2012 Brultech Research Inc. All rights reserved.

  • Page 8: Where To Start

    Brultech Research Inc 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.
  • Page 9 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 later in this chapter.

  • Page 10: Important Safety Information

     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.

  • Page 11: Compliance

    Brultech Research Inc 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 following two...

  • Page 12: Overview / Layout

    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 www.brultech.com Copyright © 2012 Brultech Research Inc. All rights reserved.

  • Page 13: Ct Connection Terminals

    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 www.brultech.com Copyright © 2012 Brultech Research Inc. All rights reserved.

  • Page 14: Potential Transformer (Pt) Input

    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.

  • Page 15: Optional Wifi Module

    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 www.brultech.com Copyright © 2012 Brultech Research Inc. All rights reserved.
  • Page 16 Recall “user3” Settings Send “reset” (reboot) to WiFi and XBee® modules. FUNCTION if PB is Return to normal Return to normal NOT pressed during operation operation the flashing sequence October 7, 2012 www.brultech.com Copyright © 2012 Brultech Research Inc. All rights reserved.

  • Page 17: Current Transformer (Ct) Installation

    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 www.brultech.com Copyright © 2012 Brultech Research Inc. All rights reserved.
  • Page 18 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 www.brultech.com Copyright © 2012 Brultech Research Inc. All rights reserved.

  • Page 19: Type A Ct Connection

    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 www.brultech.com Copyright © 2012 Brultech Research Inc. All rights reserved.

  • Page 20: Type B Ct Connection

    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 www.brultech.com Copyright © 2012 Brultech Research Inc. All rights reserved.
  • Page 21 (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 www.brultech.com Copyright © 2012 Brultech Research Inc. All rights reserved.

  • Page 22: Pulse Count Inputs

    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 (5VDC) is used to complete the circuit. October 7, 2012 www.brultech.com Copyright © 2012 Brultech Research Inc. All rights reserved.

  • Page 23: Potential Transformer (Pt) Input

    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 www.brultech.com Copyright © 2012 Brultech Research Inc. All rights reserved.

  • Page 24: Mini Usb Jack

    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.

  • Page 25: Power Supply Input

    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 www.brultech.com Copyright © 2012 Brultech Research Inc. All rights reserved.

  • Page 26: Ct Installation

    CT Installation All of the Brultech CTs have a marking “K  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 “L” is the “load” which is the device receiving power.

  • Page 27: Single/Split Phase Residential System

    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. October 7, 2012 www.brultech.com Copyright © 2012 Brultech Research Inc. All rights reserved.

  • Page 28: Three Phase (Polyphase) 4-Wire Wye(Y) System

    A, B or C. The following paragraph describes how to determine the proper setting. In the diagram above, CT#3 will be configured for Phase A because the PT is connected between Neutral and Line2. October 7, 2012 www.brultech.com Copyright © 2012 Brultech Research Inc. All rights reserved.
  • Page 29 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 www.brultech.com Copyright © 2012 Brultech Research Inc. All rights reserved.

  • Page 30: Ct Connection (Four-Wire Wye System)

    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).

  • Page 31: Three Phase (Polyphase) 3-Wire Delta (∆) System

    Brultech Research Inc Three Phase (Polyphase) 3-Wire Delta (∆) System October 7, 2012 www.brultech.com Copyright © 2012 Brultech Research Inc. All rights reserved.

  • Page 32: Communication Link

    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. October 7, 2012 www.brultech.com Copyright © 2012 Brultech Research Inc. All rights reserved.
  • Page 33 Combination WiFi/Ethernet Module  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. October 7, 2012 www.brultech.com...

  • Page 34: Com Port Bridge Mode

     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. 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.
  • Page 35 When the GEM is in bridge mode, it no ceases all operations and only operates as a bridge. Bridge mode is exited by a special timed command sequence or simply by momentarily pressing the GEM’s push button switch (14). October 7, 2012 www.brultech.com Copyright © 2012 Brultech Research Inc. All rights reserved.

  • Page 36: Rs-232 Port

     Your own personal website  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 www.brultech.com Copyright © 2012 Brultech Research Inc. All rights reserved.

  • Page 37: Xbee® Module Option

    8. Green LED (hi active) 9. Yellow LED (hi active) 10. COM2 Rx (input) NOTE: Please contact us for more information before using this header. Improper use may damage the GEM. October 7, 2012 www.brultech.com Copyright © 2012 Brultech Research Inc. All rights reserved.

  • Page 38: Firmware Upgrades

    A communication connection between the GEM and a PC running the “GreenEye Monitor Setup” program will have to be established. If the GEM is configured 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.
  • Page 39 2. Click “System” from the left menu. 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 www.brultech.com Copyright © 2012 Brultech Research Inc. All rights reserved.
  • Page 40 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 www.brultech.com Copyright © 2012 Brultech Research Inc. All rights reserved.

  • Page 41: Recovering From Corrupt Com Firmware

    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 www.brultech.com Copyright © 2012 Brultech Research Inc. All rights reserved.

  • Page 42: Recovering From Corrupt Eng 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.

  • Page 43: Technical Specification

    Mini USB Jack Input:  PT signal to pins 3 and 4 of mini USB  333 mVAC without PT shorting jumper or 666mVAC with shorting jumper October 7, 2012 www.brultech.com Copyright © 2012 Brultech Research Inc. All rights reserved.

  • Page 44: Pulse Counting

    Each counter has a 3-byte up-counter Counter wraps around when full 2 pulses. Counter Volatility Counter values are stored in RAM and preserved by battery power when a power interruption occurs. October 7, 2012 www.brultech.com Copyright © 2012 Brultech Research Inc. All rights reserved.

  • Page 45: Temperature Sensing

    Supports: TCP, UDP, ICMP, IPv4 ARP, IGMP, PPPoE, Ethernet  Client, Server and Mixed modes. Default is “Client” mode  10BaseT/100BaseTX Ethernet PHY  Configured via UDP using simple setup application October 7, 2012 www.brultech.com Copyright © 2012 Brultech Research Inc. All rights reserved.

  • Page 46: Gem System

    Custom communication solutions are available via a 10-pin header or XBee® socket Communication header providing access to UART TTL COM1 or COM2 ports. Options NOTE: Contact Brultech support before attempting to use these headers! Improper use may damage the GEM and void warranty GEM System Power Supply Volt and Current: ...
  • Page 47 Depending of the GEM options, the following wireless modules may be installed in the GEM:  Roving Networks WiFly Module FCC ID: T9J-RN171  CC ID: OUR-XBEE2 Digi International XBee® Module F  WiFi Module FCC ID: AZYHF-A111 October 7, 2012 www.brultech.com Copyright © 2012 Brultech Research Inc. All rights reserved.

  • Page 48: Channel Assignment Worksheet

    Brultech Research Inc Channel Assignment Worksheet Load Description Breaker Breaker CT Model 120V 240V 240V CH # Number Amps 1-CT 2-CTs October 7, 2012 www.brultech.com Copyright © 2012 Brultech Research Inc. All rights reserved.

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