Bluetooth Le Advanced Battery Monitor Dc Power Meter -Books Download

Bluetooth LE Advanced Battery Monitor DC Power Meter
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PowerMon BT DCPM is a Bluetooth Smart LE Swiss army knife tool that can be used in any DC circuit. Its primary function is advanced battery monitor DC power meter PowerMon allows monitoring of important. electrical parameters two voltages 0 75V one current 0 60A using the integrated current shunt or up to. 10 000A using an external current shunt peak current power W energy Wh battery charge Ah and. temperature Many other parameters are computed the battery state of charge SOC as a percentage. remaining battery runtime battery statistics number of cycles total discharged capacity The current. measurement can be either unidirectional or bidirectional In bidirectional mode PowerMon senses current. flow in both directions positive and negative The device can drive a mechanical or solid state relay which. allows it to function as a low voltage disconnect high voltage disconnect over current disconnect battery. isolator in multiple battery systems remote on off switch and timer A mobile device running either Android or. iOS and the PowerMon app available for free on Google Play Store and Apple App Store are required for. operating this device, Measures two voltages one current Lithium iron phosphate battery charge. unidirectional or bidirectional peak manager,current power W charge meter Ah Timers. energy Wh and temperature Can use an external temperature sensor. Operates at up to 75V and 60A of User master password protection. continuous current 75A peak current using Very low power consumption see. the integrated current shunt Performance Parameters. Can sense up to 160mV of voltage drop Bluetooth Smart LE radio with internal. across an external current shunt allowing antenna and long range. current of up to 10 000A to be measured 8 pole terminal block for connecting to the. Full differential input for the current shunt system that will be monitored. allowing it to be mounted either on the ABS plastic enclosure with mounting. ground or positive wire flanges completely enclosed in epoxy. Can control one relay or SSR solid state potting compound. relay Measures only 3 0 x 1 55 x 0 75 76mm x, Low high voltage disconnect 39mm x 19mm including the mounting. Over current disconnect circuit breaker flanges, Battery isolator for dual battery bank Weatherproof. systems Free PowerMon app available for Android,Battery monitor battery fuel gauge and iOS.
displays the state of charge in percentage Most parameters can be configured. and the remaining time on battery allowing it to achieve top performance with. a variety of current shunts and batteries,TYPICAL APPLICATIONS. RVs boats off the grid cabins,Solar and wind alternative energy. Vehicle batteries,Backup electrical systems,Lithium Iron Phosphate battery charge manager. Automatization solar irrigation systems solar street lights general purpose DC timers. TERMINAL DESCRIPTION INTERNAL DIAGRAM,No Name Terminal Description. 1 GROUND System ground, 2 MF Multi function for hardware revision 2 2 and up call for details.
Relay output It controls a mechanical or solid state relay This terminal is. connected to ground internally by the device when the power is turned ON. External shunt connection When using the internal current shunt connect. this terminal to ES terminal 5, External shunt connection When using the internal current shunt connect. this terminal to ES terminal 4,6 NC DO NOT CONNECT. 7 V2 Second monitored voltage Can measure the voltage of a second battery. Main power This is the main voltage that will be monitored The device. 8 V1 also draws its power form this terminal If power is applied to terminal 6. VS the device will draw its power from VS instead of V1. Internal shunt connection The measured current is flowing from IS to IS. or backwards Do not connect if using an external shunt. Internal shunt connection The measured current is flowing from IS to IS. or backwards Do not connect if using an external shunt. SPECIFICATIONS,Absolute Maximum Ratings 1 2,65V hw rev 2 00. Maximum voltage at V1 and V2,75V hw rev 2 20,18V hw rev 2 00. Maximum voltage at RELAY,32V hw rev 2 20,Maximum current through the RELAY terminal.
maximum relay coil current,Maximum current through IS and IS using the. 60A continuous 75A peak,integrated current shunt,depends on external shunt. Maximum current using an external current shunt,up to 10 000A. Maximum differential input sense voltage ES to ES,75V to 75V. using an external shunt, Maximum common mode input sense voltage ES ES 2V to 75V.
Operating temperature 30 C to 85 C, 1 Stresses greater than those listed under Absolute Maximum Ratings may cause permanent damage to the device. 2 All voltages are referenced to ground unless otherwise specified. Performance Parameter Value,Measured voltage V1 V2 0 to 60V hw rev 2 00. 0 to 75V hw rev 2 20,Measured voltage accuracy max 0 5 typ 0 25. Measured current using integrated shunt IS IS 0 to 60A. Current monitoring accuracy using integrated shunt 1 without calibration. 0 5 with calibration,Integrated current shunt resistance 0 5 mOhm 1. Voltage at external shunt input ES to ES 0 160mV 20 V resolution. Current monitoring accuracy using external shunt depends on external shunt. precision typically better than 1,with calibration.
Minimum external current shunt resistance 0 1 mOhm. Power using integrated shunt max 4500W,Power meter more than 1000 MWh. Charge meter more than 1000 MAh,Battery state of charge monitor 0 100. Temperature 1 C 1 F resolution,Current draw current consumed by the device using. the latest firmware version,at 12V 5 4 mA,at 24V 5 7 mA. at 36V 6 0 mA,at 48V 6 3 mA,at 60V 6 6 mA,at 72V 6 9 mA.
COMPLIANCE STATEMENTS, ATTENTION Changes or modifications not expressly approved by Thornwave Labs Inc could void the. user s authority to operate the equipment, ATTENTION This device complies with Part 15 of the FCC rules Operation is subject to the following two. 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. ATTENTION Cet appareil est conforme la Partie 15 des r glements de la FCC L op ration doit se. conformer aux deux conditions suivantes 1 cet appareil ne peut causer d interf rences nuisibles et 2 cet. appareil doit accepter toute interf rence re ue y compris les interf rences qui peuvent provoquer un. fonctionnement ind sirable,IC RSS 102 RF Exemption. This system has been evaluated for RF Exposure per RSS 102 and is in compliance with the limits specified. by Health Canada Safety Code 6, L exposition aux radiofr quences de ce syst me a t valu e selon la norme RSS 102 et est jug e. conforme aux limites tablies par le Code de s curit 6 de Sant Canada. IC RSS Gen 8 4, This device complies with Industry Canada license exempt RSS standard s Operation is subject to the.
following two conditions 1 this device may not cause interference and 2 this device must accept any. interference including interference that may cause undesired operation of the device. Le pr sent appareil est conforme aux CNR d Industrie Canada applicables aux appareils radio exempts. de licence L exploitation est autoris e aux deux conditions suivantes 1 l appareil ne doit pas produire de. brouillage et 2 l utilisateur de l appareil doit accepter tout brouillage radio lectrique subi m me si le. brouillage est susceptible d en compromettre le fonctionnement. SAFETY INSTRUCTIONS, Read all the instructions and cautions before using the PowerMon device Thornwave Labs Inc does not. assume responsibility for any injury or property damage caused by improper installation bad wiring or use of. PowerMon outside of its intended purpose The device should be installed by a professional. The PowerMon device should not be used for any medical purposes life sustaining equipment safety. applications or any application where equipment failure can cause injury death fires or any other hazard. There are no serviceable parts or fuses inside the power meter Do not disassemble or attempt to repair. The unit operates with voltages up to 75V which can be lethal or cause serious and permanent injury. Do not submerge under water or other liquids The device is weatherproof but not waterproof. The device is to be connected to DC circuits only not exceeding 75V and 60A using the integrated. current shunt Failure to do so will result in equipment damage Higher currents are supported when using an. external current shunt Confirm that all connections are tight to avoid excessive heating and sparks Never. connect the V1 or VS terminals to a power source without using a fuse or circuit breaker A 0 1A to 5A fuse or. circuit breaker is required, Batteries are dangerous Do not short circuit a battery or the power meter Batteries can produce. flammable and explosive gases and can generate very high currents that can lead to serious consequences. including explosion fire damage to equipment personal injury and even death It is the user s responsibility to. operate the equipment in a safe manner Do not charge batteries in an enclosed environment unless allowed. by the manufacturer of the battery Never connect a load to a battery without using fuses or circuit breakers. FUNCTIONAL OVERVIEW, Device power The PowerMon device is drawing its supply power from the V1 terminal Make sure that. V1 is always present If the device loses its power it will forget the battery state time and date and access. Integrated current shunt When using the integrated current shunt the ES and ES pins should be. connected together using a wire bent in a U shape and attached to the supplied terminal block The current to. be monitored should be routed through the IS and IS terminals An internal current shunt of 0 5mOhm exists. in between these two terminals The aluminum hex set screw terminal blocks IS and IS can accept wires up. to 6AWG in size In order to minimize the voltage drop on wires and connections use the thickest wires that can. support the required current The common mode voltage at IS and IS can be in between 2V and 75V relative. to ground allowing the current shunt to be placed either on the positive side of the circuit or on the ground. wire Current flowing from IS to IS will display as a positive value and current from IS to IS will display as a. negative value The current sign can be flipped from the device configuration as well. External current shunt To monitor a large current or a very small current more accurately an external. current shunt can be used This method allows monitoring current up to 1 000A with reasonable resolution or. even higher current if resolution can be sacrificed Using a higher resistance current shunt current in the milli. amp range can be measured accurately The external current shunt resistor should be connected to the ES and. ES inputs To avoid noise the wires should be as short as possible Twisting the sense wires reduces noise even. further The IS and IS terminals should be left unconnected The common mode voltage at ES and ES can be. in between 2V and 75V relative to ground allowing the current shunt to be placed either on the positive side. of the circuit or on the ground wire Current flowing from the ES to ES sides of the external shunt will be. displayed as a positive value and current from ES to ES will be displayed as a negative value The current sign. can be flipped from the device configuration as well. Operation Once the device receives power it will start advertising its presence to other Bluetooth. devices Using a cell phone or tablet running the PowerMon app found on the App Store Play Store the user. can scan for PowerMon devices and connect to one of them at a time if multiple devices are present Multiple. PowerMon devices can be distinguished after changing their Bluetooth name using the mobile app This will be. displayed by the app upon scanning for Bluetooth devices The factory default name is DCPM Once the mobile. app is connected to a power monitor device the app will display all the measured electrical parameters and. update them in real time Tapping on a measurement value for longer than 1 second will open a menu that. allows operations and configuration specific to that measurement. Radio performance The device contains an internal Bluetooth Smart LE radio operating in the 2 4GHz. ISM band and an internal antenna For best performance the device should be installed in such a way to offer. a path for radio waves to reach it Metal walls or enclosures can attenuate or completely shield the device. Installation on non metallic surfaces is preferred The mobile device app displays the RSSI value Received Signal. Strength Indication in real time, Power relay control PowerMon can control a power relay either mechanical or solid state using the. RELAY output terminal 3 When active relay turned on the RELAY terminal is internally connected to ground. by the device The relay should be connected between its power supply and the RELAY terminal The low high. voltage disconnect and over current disconnect functions require the use of a relay SSR Solid State Relay. Low voltage disconnect When this mode is enabled and the battery voltage drops below a specified. value the device disconnects the load protecting the battery from over discharge In order to disconnect the. load the voltage has to be below the set threshold for a configurable amount of time This feature helps in. situations where cranking an engine or a short high current load causes the battery voltage to momentarily. drop The device will re engage the power relay a configured amount of time after the condition that caused it. to disconnect is removed In this mode PowerMon can also operate as a battery isolator The relay is used to. connect the house batteries in parallel with the starting battery The LVD filter value should be set to 5000ms. The disconnect threshold should be set to 13 2V and the connect threshold to 13 6V When the engine is started. and the alternator starts charging the starting battery the voltage will start increasing When the voltage. reaches 13 6V the connect threshold the relay engages and connects the house batteries to the starting. battery this way allowing all batteries to be charged When the engine is stopped the voltage will quickly drop. below 13 2V the disconnect threshold and the relay disengages isolating the house batteries from the starting. battery The house batteries voltage can be monitored using the V2 input Note that the thresholds 13 6V and. 13 2V are just an example They can be configured to best fit the application. High voltage disconnect This function is similar to the low voltage disconnect but as the name suggests. it will disconnect the load when the voltage goes above the disconnect threshold and will reconnect the load. when the voltage goes below the reconnect threshold This mode can be used together with the low voltage. disconnect Possible uses are to protect the load from high voltage conditions start external chargers or. generators connect to the grid and so on, Over current disconnect When this mode is enabled and the measured current increases above a user.
specified trip value the device disconnects the load protecting the batteries and load from over current The. device will re engage the power relay a configured amount of time after the condition that caused it to. disconnect is removed, WARNING Although PowerMon can disconnect power if an over current condition occurs it should not be. used to replace circuit breakers A properly rated circuit breaker or fuse should be used to protect the load. and the wiring, Battery fuel gauge PowerMon is a battery monitor so it can keep track of a battery state of charge This. is accomplished by using coulomb counting For the battery fuel gauge to work properly the current should be. sensed bidirectionally Charging current should be positive and discharging current should be negative Due to. the complex nature of chemical batteries small errors in measurement and integrating current over long. periods of time will introduce errors in the state of charge estimation This is normal and expected For this. reason the device will re synchronize its SOC counter with the battery every time a full charge is performed A. full charge is detected based on the chemistry of the battery but in general it requires a voltage higher than a. threshold while at the same time the charging current being lower than a threshold The battery fuel gauge will. also take into consideration the Peukert effect The next table shows the Peukert coefficients used for various. battery chemistries,Battery Chemistry Peukert Coefficient. Lead Acid Flooded 1 25,Lead Acid AGM 1 15,LiFePO4 1 02. Li Ion LiPoly 1 02, LiFePO charge manager PowerMon can manage the charging of a lithium iron phosphate battery This.
function cannot be used together with the other disconnect functions If enabled the mobile app will. automatically disable the other functions A relay must be placed in between the battery and the charger or. power source used for charging for example the vehicle alternator The function of this relay is to disconnect. the charger from the battery if a full charge is detected or the power supply is turned off for example the. engine is tuned off To use the LiFePO charge manager connect the V1 input to the battery positive and V2. input to the charger positive The internal shunt and the relay should be wired in between the charger and the. battery see wiring diagrams at the end of the manual. The user configures the number of LiFePO cells connected in series 4 for a 12V battery and the total. capacity of the battery in Ah These parameters are used to calculate a few thresholds as seen in the table. below At least one disconnect condition has to be true for at least 2 seconds for the disconnect to take place. The connect conditions must be true for time specified in Connect Time for the connect to take place. default is 10 seconds, The following table shows the conditions used by PowerMon to decide whether to connect or. disconnect the charger from the battery turn the relay ON OFF V1 is connected to the battery and V2 to the. charger Current refers to the current flowing in between the battery and the charger C refers to the. battery capacity Care should be exercised to ensure that the current is positive when the battery is being. charged and negative if it is being discharged If wired backwards use the Flip Current Sign option to fix it. WARNING PowerMon cannot be used as a charge current limiter or LiFePO cell balancer A properly sized. battery charger is required to recharge LiFePO batteries Thornwave Labs Inc does not assume any. responsibility for expensive battery damage, Connect Conditions 10 sec delay used Disconnect Conditions 2 sec delay used. battery voltage V1 less than 3 32V cell,battery voltage V1 greater than 3 65V cell. charger voltage V2 at least 0 2V above the,battery voltage V1. charging current I less than C 100 or 1 Amp,whichever is greater.
full charge is detected,battery voltage V1 greater than 3 5V cell. charging current I less than C 20, Time keeping PowerMon keeps track of time internally The internal clock can be set by tapping on. the Device Time tab for longer than one second The internal date and time will be updated using the system. time provided by the mobile app, Timer function The device supports controlling the relay using a set of up to 16 timers Each timer. contains a start time stop time and repetition The start time specifies the time of day HH MM when the relay. turns on Stop time specifies the time of day when the relay turns off A timer does not need to have both a. start and stop time set One of them can be disabled This kind of timers should be used in pairs one turns the. power on and the second one turns it off Repetition controls the days when a timer will trigger This can be. either DOW Day of Week where the timer repeats on specific days of the week or DOM Day of Month where. the timer repeats on a specific day of the month, Using multiple timers users can create very complex time schedules. Timer1 START 4 50PM STOP 5 10PM REPETITION DOW Sun Mon Tue Wed Thr Fri Sat. This timer will run every day and turn the relay on for 20 minutes from 4 50PM until 5 10PM. Timer2 START 8 00PM STOP disabled REPETITION DOW Sun Mon Tue Wed Thr Fri Sat. Timer3 START disabled STOP 7 00AM REPETITION DOW Sun Mon Tue Wed Thr Fri Sat. This set of timers used together will turn the relay on every day at 8 00PM and turn it off the following. day at 7 00AM, Timer4 START 12 00AM STOP disabled REPETITION DOM 1.
Timer5 START disabled STOP 12 00AM REPETITION DOM 8. This set of timers used together will turn the relay on every 1st of the month at 12 00AM and turn it off. 7 days later on the 8th of the month at 12 00AM, Configuration The following parameters can be configured using the PowerMon app. Current Sense Voltage Range The current shunt resistor voltage drop measurement range This should be. adjusted to be higher than the maximum expected voltage drop across the current shunt. Unidirectional positive current only Bidirectional positive and negative current. Current Shunt Resistance The resistance value of the current shunt used in milli Ohms By default it is set to. 0 5mOhm which is the integrated shunt resistance, Flip Current Sign Allows the current sign to be flipped by software Can be used to correct a wiring mistake. without having to re wire the device, Peak Current Noise Filter Enables or disables the peak current noise filter If the filter is disabled the peak. current detector will be more sensitive but it will also pick up more noise If enabled the peak current detector. will react more slowly to current changes and may not catch a very short current peak. Meter Voltage Source The voltage used to calculate power and energy V1 or V2 can be selected. Initial Power Status The default power status when powering the device If set to on the relay will be turned on. automatically when the device receives power, Trigger on RELAY If enabled the device will turn the power on as a response to the RELAY terminal being. temporarily pulled to ground using a push button, Invert RELAY Logic Enabling this option will invert the behavior of the RELAY terminal when the power is on.
the RELAY terminal will be floating and when the power if off it will be driven to ground. Connect Filter ms The duration of time in milli seconds the LVD Low Voltage Disconnect HVD and OCD Over. Current Disconnect conditions have to be removed in order to re engage the power relay. MF Terminal Function Selects the function of the MF terminal Data Output or External Temperature Sensor. The external temperature sensors is only available for hardware revision 2 2 or higher. Low Voltage Disconnect, LVD Voltage Source The voltage used by the low voltage disconnect feature V1 or V2 can be selected. LVD Connect Threshold The voltage in volts above which the power relay can re engage after the. connect filter time has passed This must be higher than LVD Disconnect Threshold. LVD Disconnect Threshold The voltage in volts below which the power relay will disengage. LVD Filter ms The duration of time the voltage has to be below the disconnect threshold for the relay. to disengage,High Voltage Disconnect, HVD Voltage Source The voltage used by the high voltage disconnect feature V1 or V2 can be selected. HVD Connect Threshold The voltage in volts below which the power relay can re engage after the. connect filter time has passed This must be lower than HVD Disconnect Threshold. HVD Disconnect Threshold The voltage in volts above which the power relay will disengage. HVD Filter ms The duration of time the voltage has to be above the disconnect threshold for the relay. to disengage,Over Current Disconnect, OCD Trip Threshold The current in amperes above which the power relay disengages. OCD Filter ms The duration of time the current has to be above the trip value in order to disengage. the relay In order to function as a circuit breaker this should be set to a very low value between 0ms. 20ms Larger values will slow down the reaction to over current In some instances this could be useful. Auto Off Timer If enabled the power will turn off automatically after the specified time since it was turned on. has passed This effectively becomes a turn off timer. Battery Fuel Gauge, Battery Voltage Source The voltage used by the battery fuel gauge feature V1 or V2 can be selected. Battery Chemistry The chemistry of the battery used. Number of Cells Number of cells of the battery 12V Lead Acid batteries have 6 cells 12V LiFePO4 have. 4 cells If you have batteries connected in series add the number of cells in each of them If batteries are. connected in parallel the number of series cells does not change. Battery Capacity Battery capacity in Ah If batteries are connected in parallel add up their capacities If. batteries are connected in series the capacity does not change only the number of cells in series does. Disconnect on Fuel Gauge The device will disconnect power turn the relay off when the battery state. of charge becomes lower than this threshold in percentage The Invert RELAY logic option can invert. this behavior, Connect on Fuel Gauge The device will re connect power turn the relay ON when the battery state of.
charge becomes higher than this threshold in percentage The Invert RELAY logic option can invert. this behavior,LiFePO Charge Manager, Number of Cells Number of cells of the battery 12V LiFePO4 have 4 cells If you have batteries connected. in series add the number of cells in each of them If batteries are connected in parallel the number of. series cells does not change, Battery Capacity Battery capacity in Ah If batteries are connected in parallel add up their capacities If. batteries are connected in series the capacity does not change only the number of cells in series does. Default Factory Settings The default configuration for PowerMon is to use the integrated current shunt. The device can always be reset to the default configuration using the PowerMon app To do this connect to a. device tap the right corner menu iOS or right corner menu and then About for Android Tap on Factory Reset. WARNING When resetting to the factory defaults all custom settings and timers will be erased. including the device calibration and the battery fuel gauge internal state The device Bluetooth name will not.


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