RS232 Serial Hall Effect Transducer Power Meter
Contents
1. htp Watts VIEW com Revision4 6 PAGE 16 of 23 Watts VIEW http Watts VIEW com Voltage Scaling Dividing In some cases a max monitoring voltage of 200 Volts DC is not adequate For this situation a voltage divider circuit can be used on the input of the Wattsview sensor The resistors below are made by Ohmite and are rated for 1 6kV voltage isolation 5 inches long 14 each They can be mounted on a panel This would divide a 1 000 Volt potential down to a 166 Volt potential which falls well within the range of the Wattsview sensor DISCLAIMER Some alternative energy systems can exceed 1 000 Volts DC Be aware this voltage can cause fire damage to property instant death or injury By following these suggestions and connecting to power you agree to have a licensed engineer or electrician your installation spect WattsVIEW Voltag Input ES PIN L50J100K PIN L50J20K Watts VIEW hutp WattsVIEW com Revision 4 6 PAGE 17 of 23 Watts VIEW http WattsVIEW com APPENDIX A Windows Installation If you have the install disk then you can run the setup exe driver install program shown below Windows Serial Port Drivers Setup File If you do not have the install disk then the driver installer can be found at this URL HTTP www fidichip com Drivers VCP htm Click this website shown below The windows download is a Setup exe file which automatically installs when you double click on it Window2. ones sold here This will require you to install some software drivers first before you plug it in Such as the FTDI adapter shown in the previous section 3 Connecting Voltage Monitoring Use light gauge wire Size 18 to 28 AWG stranded to connect to the green voltage monitoring terminals as shown below You will need a small flat end screw driver to tighten down the screw terminals For best results use stranded wire instead of sold wire DC VOLAGE MONITOR 4 Connecting Operating Power The operating Voltage requirements power for the DC 10 000W Current sensor are DC Volts 12 30 Current 30mA Power Consumption lt 1 Watt Center post ID 2 5mm The center of the power connector is positive and has an inner diameter of 2 5mm The positive input to this connector is diode protected so that if you happen to reverse the polarity to the sensor it will not damage the components on the board Watts VIEW hutp WattsVIEW com Revision 4 6 PAGE 8 of 23 Watts VIEW http Watts VIEW com There are two ways to power this sensor 1 Use an AC wall adapter to 12 volts as shown below in Figure 1 Wall Adapter Power Supply 2 Connect the power input cable to a battery that is 12V or 25V 12130 Volt DC Adapter Figure 1 Wall Adapter Power Supply WARNING You need to take into account that your computer must share a common ground with the sensor and the ground of the system you
3. I Cards Built in iSight Parallel SCSI Power Printers FTDI product baad Version 6 00 Serial ATA Bus Power mA 500 use Speed Up to 12 Mb sec vens ee Te a uct ID x Melon cen Serial Number FTSIZOXH Firewall VendoriD 0x0403 Watts VIEW htp WattsVIEW com 46 PAGE 22 of 23 Watts VIEW http WattsVIEW com APPENDIX C User Manual Revision History Revision 4 5 11 11 13 Updated MAC installation to include NI VISA driver install Revision 4 6 12 3 14 Updated phots minor changes to content Hardware Accessories RCOMMENDED SERIAL CABLE This cable can be used with the Watts VIEW serial DB Spin model DB 9 Pin Male To Female Straight Through RECOMMENDED POWER SUPPLY This cable can be used with the Watts VIEW serial DB 9pin model 120V to 220 V AC 50 60 Hz Sold here online TECHNICAL SALES amp SUPPORT PHONE 480 489 4111 EMAIL support wattsview com Watts VIEW hutp WattsVIEW com Revision 4 6 PAGE 23 of 23
4. OWER SUPPLY tton i 24 TECHNICAL SALES amp SUPPORT nS 24 Safety When installing and operating this power monitor l You are responsible for following all electrical code amp safety guidelines that are established in your country 2 Make sure all lines have adequate over current protection such as fuses and breakers Understand that if you do not use over current protection high current cables and wires can short out and cause liquid metal to form and burn a person very badly or cause death 3 Byusing this product you agree that before operating your power monitor you will have a licensed electrician look over your work just to make sure it is safe to operate and meets regulations and code Introduction The WattsVIEW power monitoring software and module allows a person to convert a regular computer into a data logger which will monitor Watts VIEW hutp WattsVIEW com Revision 4 6 PAGE 2 of 23 Watts VIEW http Watts VIEW com DC Voltage Current Amps Watts Watt Hours Amp Hours Up to 10 Wattsview power monitoring sensors can be used at one time if they share a common ground with each other and the computer they are plugged into If they do not share a common ground then you will need to use a USB isolation module like the ones sold here The data is stored in a Log directory on the computer in tab delimited text file One log file per sensor per day is created For example two Wattsvie
5. Watts VIEW http Watts VIEW com WattsVIEW Power Monitor Model DC 10000 DC Power Monitoring Made Easy Models DC 10000 Serial DC 1000 USB DC 25000 OWNERS MANUAL Watts VIEW hutp WattsVIEW com Revision 4 6 PAGE 1 of 23 Watts VIEW http Watts VIEW com Table of Contents Watts VIEW tm Power Monitor Model DC 10000 Safety Introduction Applications GPRS SMS Modem usage Solar Panel Wind turbine monitoring Wattsviewtm DC Power Monitor Overview ss Wattsviewtm Serial DB 9 Pin Connector Wattsviewtm USB Mini USB connector Software Main Screen SPECIFICATIONS APPLICATIONS SOLAR PANEL POWER MON ITORING LOGGING HARDWARE SETUP INSTRUCTIONS SOFTWARE SETUP INSTRUCTIONS FTDI Serial Port Drivers The FTDI USB to serial converter drive er r will need to be installed if you have purchased a FTDI USB to Serial Converter or if you have purchased a Wattsviewtm USB power monitor sensor Shown below 12 BR uleuwuwinwuuii SOFTWARE OPERATION x y o1 Log File Viewer acca acai o MET DIGITAL 10 PORT i s i esi CUSTOM SOFTWARE FOR YOUR APPLICATION i i i i NENE T Voltage Scaling Dividing i a s 5 i 18 APPENDIX A Windows Installation 19 APPENDIX B MAC OS X Installation s s Maid idm APPENDIX C User Manual Revision History pem ne A Hardware Accessories 24 RCOMMENDED SERIAL CABLE BO eiii 24 RECOMMENDED P
6. a cell phone wireless grid is method of communication via a GPRS modem a much lower data rate is typically desired so as to now overwhelm the GPRS SMS system A transmission rate of one time each second will often exceed the monthly allowed data fora sim card data plan Ifa slower data rate is required then download the video tutorial on the http wattsview com downloads using the WattsVIEW Configuration Utility Watts VIEW hutp WattsVIEW com Revision 4 6 PAGE 3 of 23 Watts VIEW http Watts VIEW com Wattsview DC Power Monitor Overview Wattsview with DB 9 Pin Serial COM Port connector The Wattsview DC Power monitor utilizes an open source PIC microprocessor which measures up to 105 Amps of current from a hall effect transducer sensor and measure up to 200 Volts to calculate Watts and Watt Hours The formula for power is then applied and allows for the calculation of Watts VOLTS x AMPS WATTS This data is calculated and transmitted about once every second The Wattsview power monitor communicates with any serial compatible software such as Hyper terminal or Wattsview free data logging power monitoring software See software details in software installation section The Wattsview software connects to the Wartsview 1 RS232 serial port 2 USB Cable sensor through either of two methods Wattsview Serial DB 9 Pin Connector Most computers today do not come with an RS 232 serial
7. age at http wattsview com Watts VIEW Unzip File Now unzip the file or extract the contents of the file to a temp folder on your hard drive Run the setup exe file Wait until the installation is completed E This portion of the procedure is completed hutp WattsVIEW com Revision 4 6 PAGE 20 of 23 Watts VIEW hutp WattsVIEW com APPENDIX B MAC OS X Installation If you do not have the installation disk then download the software from downloads page at http wattsview com Place the contents of the zip file into the folder you want this application to reside from here on out For example you can leave it in the download area or put it in the application folder It should look look something like this when you open the zip file i wotts view seri A for Mac OX C FIBIUSESeriDiver 2 219dmg C Lb VIEWIDI2RuntimetnginefS dmg D NAISA12dmg MAC OS X Install files Note There are 3 dmg files to install 1 Click on and run the LabVIEW 2012 runtime engine dmg file 2 When installer launches click on the LabVIEW runtime engine pkg file and follow the promptsClick on and run the NI VISA file it may require you to reboot These are low level serial port drivers written by National Instruments 3 Click on and run the FTDI dmg file which are drivers written by FTDI which will configure USB to serial adapter 4 Follow the instructions in the user manual to setup the Watts VIEW sensor 5 Connect your Watts VIEW sen
8. are monitoring Problems usually occur with grounds when the DC voltage to an AC inverter is being monitored or when a computer that is monitoring the sensor is connected to something that is plugged into a computer like a large plasma screen To take care of this problem a USB isolator must be used to isolate the computer ground from the ground of the system being monitored 5 Routing Wire Through Current Sensor You will need to route one of the two wires coming from your DC power source through the current sensor with the current traveling through the sensor from the top end as shown below If you do not route it through the correct way then the current reading will appear as a negative number instead of a positive number Keep in mind that DC current flows from the positive side of a power source to the negative That s how you can remember direction of travel Watts VIEW hutp WattsVIEW com Revision 4 6 PAGE 9 of 23 Watts VIEW http WattsVIEW com You can increase the sensitivity and resolution of your current sensor by looping the wire through your current sensor multiple times For example looping your wire through the sensor 5 times as shown in the picture will increase the amplitude of the current signal by 5x There are two scenarios where looping the wire through the current sensor more than once should be considered D The current you are trying to measure is a small value such as less than 1 Amp 2 You ne
9. day to day variability and ambient temperatures This is a common behavior of the honeywell CSLA current transducer sensor being used For example if your sensor puts out 0 1 Amps when no current is flowing this will introduce a small error in your measurements If the peak current being measured is only 5 Amps the 0 1 offset would introduce a 2 0 1 5 error into the measurement To remove this error or ZERO out your sensor then go to setup screen and enter in 0 1 for that sensor and it will subtract out that offset This screen also allows the user to enter in the number of loops going through the sensor so that the current reading is accurate For instance if there is 5 loops then the software will divide the reading from the sensor by a factor of 5 to display the proper Amps value Figure 2 Example of loping wire through sensor Watts VIEW http WattsVIEW com Revision4 6 PAGE 13 of 23 Watts VIEW http Watts VIEW com Large Display Screen Ifyou click on the Large Read outs tab you will see the screen shown below meters then you need to click on the button and select Then you will see the screen shown below Watts VIEW hutp WattsVIEW com Revision 4 6 PAGE 14 of 23 WattsVIEW http WattsVIEW com Log File Viewer Watts VIEW records data to log files on your hard drive in tab delimited format To view recorded data click on the tab titled LOG VIEWER To look at
10. ed to have better then 0 1 Amps resolution accuracy and you don t need the full range of the sensor Note If you use more than one loop through the current sensor then you must adjust the loop count setting in the Wattsview software Watts VIEW http WattsVIEW com Revision46 PAGE 10 of 23 Watts VIEW http WattsVIEW com SOFTWARE SETUP INSTRUCTIONS FTDI Serial Port Drivers The FTDI USB to serial converter driver will need to be Serial Converter or if you have purchased a Wattsvi stalled if you have purchased a ETDI USB to USB power monitor sensor Shown below REQUIRES FTDI DRIVER REQUIRES FTDI DRIVER INSTALL INSTALL FTDI USB to Serial Converter Wattsview with Mini USB sold online here The same FTDI software driver file will work with either device above For step by step instructions on Windows Flow go to Appendix A of this document For step by step instructions on MAC Installtion go to Appendix B of this document SOFTWARE OPERATION Launching Wattsview DC power monitor software Windows Launch the Wattsview software buy going to your Start button on the lower left hand corner of your screen Select the Program Files menu Wattsview Serial menu then Wattsview Serial MAC Click twice on the wattsview app file in the folder you selected for install The main screen will open and verify the log file path the KWH path number of available ports and number of sen
11. of 23 Watts VIEW http WattsVIEW com APPLICATIONS SOLAR PANEL POWER MONITORING LOGGING Below you can see the DC 10 000 sensor is hooked up to monitor a solar panel that is charging a battery The positive wire from the solar panel is routed through the round current sensor as shown below The direction you route the wire will affect whether your current is read as positive or negative As the current flow indicator shows below I when you wire you power source to come through the top of the sensor as shown then it will appear as a positive reading WattsVIEW DC Simple Solar Power Monitoring Configuration No Charge Controller 121030 Volt DC Adapter Deep Cycle Battery CABLE DB 9 Pin Male Straight Through Serial Cable WattsVIEW com Watts VIEW hutp WattsVIEW com Revision 4 6 PAGE 7 of 23 Watts VIEW http Watts VIEW com HARDWARE SETUP INSTRUCTIONS 1 Mounting The Hall Effect Current Sensor Secure the DC 10 000W to a panel or plate where the circuit board traces can not short out against any kind of metal items This will destroy the power monitor You can use stand offs or plastic spacers for example with some 6 32 screws through the corner mounting holes Serial Cable Installation Connect a male DB9 Straight through serial cable from your computer to the DC 10 000W Sensor If your computer does not have a serial com port then you will need to use a USB to serial adapter cable like one of the
12. port so in order to use the Wattsview Serial with the DB 9 pin connector a USB to serial converter will be needed Shown to the right For example the FTDI adapter will work with the Wattsview serial power monitor A free software driver for the FTDI must be installed for FTDI converter to work This FTDI USB to Serial Converter is sold on Serial ic here Google FTDI USB to This style of Wattsview with the DB 9 pin connector is especially convenient for a person who has access to many older computers and wants to use one just as a data logger that runs 365 days a year The Wattsview USB module needs a simple off the shelf USB to Mini cable Watts VIEW h p WatsVIEW com Revision4 6 PAGE 4 of 23 Watts VIEW http Watts VIEW com Wattsview USB Mini USB connector The Wattsview USB saves the hassle of having to order a separate USB to Serial Converter The FTDI converter is integrated with the Wattsview sensor so that the sensor can plug directly into the computer using a simple off the shelf USB A to Mini B Cable Right This is a common cable that comes with many digital cameras This cable is sold online here Software Main Screen Large Display LogFile Screen Tab Viewer Tab Analog Meters Total Amps Total Watts Total AH Total KWH Status Table Volts Amps Watts WH Real Time Chart Volts Amps Watts WH AH Watts VIEW hutp WattsVIEW com Revision 4 6 PAGE 5 of 23 Wat
13. s Serial Port Driver Installer Download coon Sappeed VCP Da opening alee EUR aa B poe arm st ws SHE pem rct ard TEL Imm utc zt crane 2 Pre wee za 22u onm MAC Serial Port Driver Download The process flow for the FTDI Windows Setup exe installer is shown below Watts VIEW hutp WattsVIEW com Revision 4 6 PAGE 18 of 23 Watts VIEW http Watts VIEW com This is the first screen that pops up Click on the Extract button Next allow the program to finish extracting Click on the Next button Allow installation to finish This screen should appear when finished Click on the Finish button Watts VIEW hutp WattsVIEW com Revision 4 6 PAGE 19 of 23 Watts VIEW http WattsVIEW com Verifying Successful serial COM port Instal ion If you desire to double check that the serial port was setup correctly then access device manager and verify the port shows up as shown below Note If your port does not show up then you need to reboot the computer and check again Device Manager omagen a EE BE Spt eo EETA 1 reuse E G entien nn shee imer oreks t Prem same T S mesai erse E TO Pa reicte patira destos Sag tee inten Low Get the latest version of Wattsview Copy the installation zip file from your install disk to your computer Or download the latest version of the Wattsview program from the downloads web p
14. sor to the computer verify that you have connected the 12 Volt power connector into the watts VIEW sensor as shown in owner manual 6 Open the Watts VIEWtm folder 7 Launch the WattsViewtm APP file which will scan for devices and ports and display data 8 Connect the sensor to your MAC computer by plugging one end of the USB cable to your MAC and the other end to the Watts VIEW sensor 9 Wait 5 seconds then Launch the System Profiler utility or Apple System Profiler for earlier versions of OS X This can be accessed by going to the Finder and selecting Applications from the Go menu then open the 10 Utilities folder Select USB under Hardware in the panel to the left and then select the appropriate device from the USB Device Tree In the screen shot below from OS 10 4 the device has a devicelD given by Vendor ID 0x0403 Product ID 0x6001 See example below 11 This ends this part of the installation Refer now to the Launching Watts VIEW section of this manual Watts VIEW http WattsVIEW com Revision 4 6 PAGE 21 of 23 Watts VIEW hutp WattsVIEW com 6000 Intel il Intel iMac Contents USB Device Tree y Hardware r USB Bus ATA USB Bus Audio Built In FTDI product Bluetooth USB Bus Diagnostics Y Hub in Apple Pro Keyboard Disc Burning Apple Optical USB Mouse Fibre Channel Apple Pro Keyboard FireWire USB Bus Graphics Displays Bluetooth USB Host Controller Memory IR Receiver PC Cards USB High Speed Bus PC
15. sors responding 1f there are no sensors then you will be prompted with the option to use Simulated Data where you can pick wind turbines or solar panels to monitor and see simulated data coming into the program Watts VIEW hutp WattsVIEW com Revision 4 6 PAGE 11 of 23 Watts VIEW http WattsVIEW com wamsaei urszeeisons sru oere snos n war poe Tora TOTAL ESC TOTAL WATTS OTA AW HOURS FLORRTI FOURS 4 m Wattsview Main Screen The main screen contains a set of panel meters for total Amps Watts Amp hours and KW Hours The table below meters shows the individual Voltage Amps Amp Hours Watt Hours amp Data Transmissions for each of the sensors being monitored The graph below the table contains an interactive user interface which allows the user to select Volts Amps Watts Watt Hours or Amp Hours The user also selects the power source as shown in this example above Wind turbine 1 Wind turbine 2 Wind turbine 3 The graph holds about 30 minutes of data Click on the LOG VIEWER tab to see data older than 30 minutes Sensor Setup Calibration and Loops Click on the button to open the screen shown below SETUP and then CHANGE SETUP Watts VIEW hutp WattsVIEW com Revision 4 6 PAGE 12 of Watts VIEW http Watts VIEW com Sometimes the Wattsview hall effect current sensor will not read exactly zero when it should be reading zero This is due to
16. the voltage being monitored click on the left hand side of the screen where it says VOLTS click on the sensor you want to display data for Click on the day you want to display data for in the bottom left hand box For example a log file of 20130116 log January 16 2013 The date format is YYYYMMDD rare urrruocuz sme iove seen emus sor cansstia Sues dio sih dao eles sid deih PTT Watts VIEW hutp WattsVIEW com Revision 4 6 PAGE 15 oi Watts VIEW hutp WattsVIEW com DIGITAL IO PORT The Watts VIEW sensor has a 8 bit digital port which allows the user to control or monitor 8 digital TTL channels by sending a series of remote commands These commands for someone who wants to write their own software The commands are available by request contact support for more information The digital lines can be used with a solid state relay to turn on high current sources such as an AC driven heater to control constant power N Drivers to control and monitor these digital channels are available in LabVIEW STIONS go to http wattsview comn for Monitor UBto2z00v C 8 Bit Digita 10 Port CUSTOM SOFTWARE FOR YOUR APPLICATION Electrical engineering and software engincering services are available for your project needs Any kind of software can be customized or written for your application Please contact support for price and delivery time Watts VIEW
17. ts VIEW SPECIFICATIONS PARAMETER DC Current Amps DC Voltage MAX WATTS OPERATING VOLTAGE SAMPLING RATE Digital 10 POWER SUPPLY CONNECTOR STYLE CURRENT MONITORING METHOD STYLE POWER CONSUMPTION PCB PHYSICAL DIMENSIONS Max wire diameter able to be used with current sensor COMMUNICATION STANDARD COMMUNICATION CABLE TYPE COMMUNICATION PROTOCOL DATA STRING EXAMPLE STANDARD MODE TEXT DELIMITER END OF LINE CHARACTER DATA STRING EXAMPLE PANEL METER MODE Model L61001 BL Red Or Model L51001 BL Green Watts VIEW http WattsVIEW com MIN MAX 75 105 0 200 o 10 000 W 12VDC 30vDC Takes 16 readings over a 0 7 second period and then output the average from those 16 readings 8 Digital 10 bits that operate from 0 to 5 Volts DC 2 5mm ID Center Positive Hall Effect Current Transducer Electrically isolated from your current carrying conductor lt 1 Watt 30 ma 12 volts Just the Circuit Board 3 X 2 Circuit mounted on plate 4 X 2 5 0 4 Inches 9 2mm Size 6 AWG RS232 SERIAL COMMUNICATIONS 9600 BAUD 8 Data bits No Parity No Flow Control Three wires used Tx Rx Gnd Male to Female Straight Through Cable DB 9 PIN Asynchronous ASCII Numerical Text no check sum no handshaking 000012 1V 00001 0A 00012 1W 00000 0WH Spaces CARRIAGE RETURN Vin 0H 00000 0A More info on meters at HTTP www laurels com magna serial htm http WattsVIEW com Revision4 6 PAGE 6
18. w power monitoring sensors would generate about 60 log files each month The software offers an adjustable sampling interval with a default of one data point every 30 seconds The smallest logging interval is 1 seconds at which approximately 86 400 entries a day would be made for each Wattsview sensor you have connected to your computer HARD DRIVE SIZE REQUIREMENTS One WattsVIEW sensor can generate about 5 Gig of data a year at a 1 second logging interval So if you have a 50 Gig hard drive or bigger then you will be fine CPU MEMORY REQUIREMENTS Your computer should have at least 2 Gig of RAM to be able to look at the log history efficiently An old windows XP laptop can easily do the job when it comes to logging the data but if you were to select a one year period to look at in the log viewer then it might choke Applications The Wattsview DC Power Monitor is Well Suited for the Following Applications Solar Panel Power Monitoring Hydrogen Production Electrolysis Power Monitoring Wind Turbine Power Monitoring Hydro Generator Power Monitoring Bicycle Generator Power Monitoring Salt Chlorine Swimming Pool Generator Monitoring Battery Charging Amp Hours KWH Constant Power Control Systems Battery Discharge Power Monitoring Solid state relay control closed loop power monitoring GPRS SMS Modem usage Solar Panel Wind turbine monitoring When using the Wattsview sensor at remote locations where
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