POWER-MATE PRO THREE PHASE POWER ANALYSER WITH 20A AND 32A CONNECTORS

Transcription

1 POWER-MATE PRO THREE PHASE POWER ANALYSER WITH 20A AND 32A CONNECTORS 1

2 Part No Description PMPRO-20A Three phase power analyser with 20A connectors PMPRO-32A Three phase power analyser with 32A connectors 2

3 Contents 1. Safety Introduction Safety Precautions System Overview Overview Block Diagram Getting Started Connecting The Power-Mate Pro Power On Recharging the Hand-Held Unit Software Interface Software Flow Chart Flash Screen Screen Buttons Cost Cost Rate Greenhouse Gas Greenhouse Gas Rate Energy Meter Detailed Meter System Setup Run Time Timer Setup Log View Logging Setup Warning Screens Measurements Overview Active Power Energy, Cost, Greenhouse Gas Reactive Power Apparent Power Phase Voltage Line Current Power Factor Specifications Measurement Specifications...30 Energy Accumulation...30 Reactive Power Warranty

4 1. Safety 1.1 Introduction During the operation of this electrical device certain parts of the internal design are live and constitute a safety hazard. Failure to comply with warnings or incorrect use could be hazardous to both materials and personnel resulting in damage or injury. Proper transport, storage, set-up, usage and maintenance to ensure the units casing and cables are kept in good condition are essential for continued safety. DANGER ELECTRIC SHOCK RISK 1.2 Safety Precautions Only qualified personnel should install this meter after reading and understanding this user manual. It is the responsibility of the user to ensure compliance of the installation with any local acts or laws. If in any doubt, consult the office of the technical regulator for your state. The following precautions should be undertaken during both the installation and operation of this energy meter: 1. The energy meter must only be serviced by the manufacturer or an authorised service centre. 2. The Power-Mate Pro is intended for indoor use only. 3. If the energy meter s casing is opened or damaged the energy meter must not be installed or operated. Otherwise all the internal circuitry must be considered as live and potentially hazardous. 4. The power cable must be in good condition with no damage. 5. Do not use the Power-Mate Pro if it becomes wet. 6. Avoid using the Power-Mate Pro in areas where it can be exposed to water, rain and excessive dust. 7. Do not expose the Power-Mate Pro to excessive heat ie. a vehicle in direct sunlight, to avoid damage to the case. 8. Do not dismantle the Power-Mate Pro, there are no user serviceable parts inside and a shock hazard exists. 9. Do not attempt to remove the attached three-phase connectors. Any input signals must be connected through the supplied connectors. 10. Caution Do not support the weight of this unit by the socket outlet. If support can not be provided, an extension cord must be connected to the outlet to prevent stress to the socket outlet. Note: This manual was correct at the time of manufacture. For the latest version of the manual and any technical or safety updates refer to the website:- cabac.com.au, cabac.co.nz or scan the QR code with a mobile phone. 1

5 2. System Overview 2.1 Overview The Power-Mate Pro is a three phase energy meter intended to measure the energy consumption of a load, when connected to an AC source of 80VAC to 500VAC at currents up to 32A. This device can be used to safely meter most three phase systems being used within an industrial environment. The Power-Mate Pro consists of two main components, the Base unit and a Hand- Held Unit. The Base Unit is connected to the three phase system to be metered. The Hand Held unit, which is essentially a mini computer, connects to the Base Unit via an Ethernet cable. This allows the user to monitor and perform tests on equipment which may be in a difficult or inconvenient location. The Hand Held unit could also be connected to the Base Unit via a factory Ethernet system if more convenient. Future models of the Base Unit may incorporate an inbuilt LCD display as an option. The base unit can also log the metered data to an internal SD card. This stored data can be retrieved by an external PC or the handheld unit or by taking the SD card to a computer. The Base Unit is housed inside a strong polycarbonate enclosure and is responsible for all the metering requirements. The Base Unit uses six isolated input channels (three voltage channels and three current channels) to effectively meter any three phase configuration. This isolation provides an increased common-mode rejection for the Power-Mate Pro. A high level of accuracy and stability is achieved due to oversampling and filtering techniques employed to reduce noise and distortion in the sampled signals. Every Power-Mate Pro is individually calibrated to achieve its optimal performance. The calibration process removes any losses, offsets, and phase errors introduced by the sampling circuitry. It is these features and processes that allow the Power- Mate Pro to confidently produce results of a very high standard. Each channel uses its own A/D converter to sample the input signal and convert it into a digital representation. The digital signal processor interprets the signals measured on each channel and calculates the voltage, current, power, and energy values for each phase and the total three phase system. The Hand-Held Unit uses a software interface to display the data measured by the Base Unit. This interface allows the user navigate the different functions available on the Power-Mate Pro. 2

6 2.2 Block Diagram The following block diagram shows how the Power-Mate Pro s systems are organised: L1 L2 L3 Base Unit VA IA VB IB VC IC Filter Filter Filter Filter Filter Filter ADC ADC ADC ADC ADC ADC Digital Signal Processor Ethernet Connection Hand Held Unit Software Interface USBM ini USB SD Micro SD Ethernet - Transformer Isolation 3

7 3. GETTING STARTED 3.1 Connecting the Power-Mate Pro The following step by step instructions will allow the user to safely and correctly install the Base Unit of the Power-Mate Pro: 1. Before you begin, ensure that the three phase system you wish to meter is deenergised. Switch the three phase socket connected to the mains supply into the OFF position ( 0 ) as shown: 2. Disconnect the three phase system that you wish to meter from the three phase mains socket. Now connect the three phase system s plug into the Power-Mate Pro s three phase socket as shown: **CAUTION** Only use the three phase socket that was provided with the Power- Mate Pro. Also ensure all connections are firmly fixed by pushing the plug into the socket and tightening the plug s threaded collar as shown above. 4

8 3. Now connect the Power-Mate Pro s three phase plug into the three phase mains socket to connect it to the mains power supply as shown: **CAUTION** Only use the three phase plug that was provided with the Power- Mate Pro. Also ensure all connections are firmly fixed by pushing the plug into the socket and tightening the plug s threaded collar as shown above. 4. Confirm that all of the connections have been properly made and are secure. The resulting connection of the Power-Mate Pro should be as follows: Three Phase Mains Supply Base Unit Target Three Phase System 5. The Power-Mate Pro is now ready to receive power from the mains three phase supply. Turn the three phase mains socket into the ON position ( I ) to begin delivering power to the Power-Mate Pro and the desired three phase test system. 5

9 3.2 Power On The Base Unit of the Power-Mate Pro will be activated once it has been connected to the three phase mains supply. The Hand-Held Unit of the Power-Mate Pro is powered by an internal rechargeable battery. The Hand-Held Unit s power button is located on the top edge of the casing, next to the USB socket. Push the power button once to power up the Hand-Held Unit. Holding the power button will turn the Hand-Held Unit off again. Once the Hand-Held Unit is powered, the software interface will begin and the default settings will be loaded. The Power-Mate Pro does not need to be calibrated upon start up. All the calibration settings for the Power-Mate Pro are safely stored inside the Base Unit s memory. 3.3 Recharging the Hand-Held Unit The hand held unit will be automatically recharged whilst it is plugged into a powered up base unit. During charging the LED just adjacent to the on off switch (on the handheld unit) will be illuminated Orange. When charging is complete the orange LED will turn off. The hand held unit may remain on during charging without affecting charging time. The hand held unit may also be re-charged from a suitable mini USB wall- adaptor type power supply (or PC). 6

10 4. SOFTWARE INTERFACE 4.1 Software Flow Chart START FLASH SCREEN Cost Rate Hold MODE EXIT Cost Greenhouse Gas Rate Hold MODE EXIT MODE Greenhouse Gas MODE Energy MODE System Setup Hold MODE EXIT Meter ENTER EXIT Detailed Meter MODE Timer Setup Hold MODE EXIT Run Time MODE Logging Setup Hold MODE EXIT Log View MODE 7

11 4.2 Flash Screen Once the Power-Mate Pro s Hand-Held Unit has been turned on the Flash screen will be displayed: This screen will disappear and begin displaying the Cost screen after a period of 20 seconds. 4.3 Screen Buttons All the screens for the Power-Mate Pro s software interface use the same layout for their particular feature. Every screen has a title bar at the top of the display that is divided into three parts. The left box of the title bar will display Connected when the hand held unit is communicating with the base unit, the middle box will display the screen title, and the right box will display the status of the meter (ie Running, Paused, or Logging). On the left side of the screen there is a column of three separate buttons: Mode - used for cycling through different screens and will turn into an Exit button for particular cases. Holding down the Mode button for three seconds will give the user access to setup screens. Run/Pause used to make the Power-Mate Pro start accumulating values and will turn into a Pause button whilst the meter is running. RESET used to reset previously saved accumulated values in preparation for a new test. Note: To Reset the Power-Mate Pro, press the reset button, a small prompt will appear on the screen to prompt whether you really want to delete all the data. If you select Yes the units data will be cleared; No cancels the resetting operation. 8

12 4.4 Cost Once the Flash screen has disappeared the Cost screen will be displayed: Whilst the Power-Mate Pro is running this screen will display cost values. These cost values are based upon the energy measured over the run period. The Actual cost value displayed will increase as more energy is accumulated. The Power-Mate Pro uses this value to create estimates for the Hourly, Quarterly, and Yearly projection values. These estimates are based on the amount of actual energy accumulated and the amount of time the Power-Mate Pro has been left running. As a result, the longer the Power-Mate Pro is left running the more accurate these estimates will become. Pressing the Run button will cause the Power-Mate Pro to start measuring. The Run button title will change to Pause whilst the Power-Mate Pro is running. Pressing the Pause button will stop the accumulation of cost and hold the current values. (Note the button changes from Pause to Run again) Pressing the Run button will now continue accumulating from these held values. If the user wishes to begin accumulating new values from zero, the Power-Mate Pro should be RESET first. 9

13 4.5 Cost Rate Holding down the Mode button momentarily for three seconds whilst in the Cost screen will give the user access to the Cost Rate screen: This screen allows the user to edit the cost factor used to calculate the running cost ( in cents per kilo-watt-hour ) derived from the total energy value. The first digit of the cost value will flash allowing the user to increase and decrease its value by using the up and down arrow buttons respectively. Pressing the Right arrow button will cycle through to the next digit. Pressing the Save button will save this value and pressing Undo will restore to the previous stored value. Pressing the Exit button will return the user to the Cost screen and the cost values displayed will change to comply with the new factor. 10

14 4.6 Greenhouse Gas When the Mode button is pressed in the Cost screen the Greenhouse Gas screen is displayed: Whilst the Power-Mate Pro is running this screen displays the amount of greenhouse gases produced by the metered three phase system. These gas values are based upon the energy accumulated over the run period. The Actual gas value displayed will increase as more energy is accumulated. The Power-Mate Pro uses this value to create estimates for the Hourly, Quarterly, and Yearly projection values. These estimates are based on the amount of actual energy accumulated and the amount of time the Power-Mate Pro has been left running. As a result the longer the Power-Mate Pro is left running the more accurate these estimates will become. Pressing the Run button will cause the Power-Mate Pro to start measuring. The Run button title will change to Pause whilst the Power-Mate Pro is running. Pressing the Pause button will stop the accumulation of Greenhouse Gas and hold the current values. (Note the button changes from Pause to Run again) Pressing the Run button will now continue accumulating from these held values. If the user wishes to begin accumulating new values from zero, the Power-Mate Pro should be RESET first. 11

15 4.7 Greenhouse Gas Rate Holding down the Mode button for three seconds while displaying the Greenhouse Gas screen will give the user access to the Greenhouse Gas Rate screen: This screen allows the user to edit the factor used to calculate the Greenhouse Gas emissions ( in kilograms per kilo-watt-hour ) derived from the total energy used. The first digit of the G/Gas value will flash allowing the user to increase and decrease its value by using the up and down arrow buttons respectively. Pressing the Right arrow button will cycle through to the next digit. Pressing the Save button will save this value and pressing Undo will restore to the previous stored value. Pressing the Exit button will return the user to the Greenhouse Gas screen and the gas values displayed will change to comply with the new factor. 12

16 4.8 Energy When the Mode button is pressed in the Greenhouse Gas screen the Energy screen is displayed: Whilst the Power-Mate Pro is running, the Energy screen will display the amount of energy consumed by the load connected to the three phase system. These energy values are based upon the energy accumulated over the run period. The Actual energy value displayed will increase as more energy is accumulated. The Power- Mate Pro uses this value to create estimates for the Hourly, Quarterly, and Yearly projection values. These estimates are based on the amount of actual energy accumulated and the amount of time the Power-Mate Pro has been left running. As a result the longer the Power-Mate Pro is left running the more accurate these estimates will become. Pressing the Run button will cause the Power-Mate Pro to start measuring. The Run button title will change to Pause whilst the Power-Mate Pro is running. Pressing the Pause button will stop the accumulation of energy and hold the current values. (Note the button changes from Pause to Run again) Pressing the Run button will now continue accumulating from these held values. If the user wishes to begin accumulating new values from zero, the Power-Mate Pro should be RESET first. 13

17 4.9 Meter When the Mode button is pressed in the Energy screen the Meter screen is displayed: This screen displays all of the 3 phase meter type values measured by the Power- Mate Pro. Even when the Power-Mate Pro has been paused these meter values will remain updated. The voltage does not have a defined value when metering the total three phase system. In this case their individual phase values are averaged and displayed when the total three phase system set of meter values is accessed. The display will indicate this condition by displaying (avg) next to the name of the particular value. Using the up and down arrow buttons the user can cycle through the meter values displayed on this screen. Pressing the Enter button, whilst a meter value is selected, allows the user to enter the Detailed Meter screen for that particular value. 14

18 4.10 Detailed Meter When a meter value is selected by pressing the Enter button in the Meter screen the Detailed Meter screen will be displayed: This screen displays the details of the particular meter value that has been selected. This screen will display the maximum and minimum values that this selected meter value was detected reaching. Pressing the Reset button will reset these maximum and minimum values. Pressing the Phase Select button will cycle through the values for the different phases and total system value. Using the UP and DOWN buttons will change the detailed meter measurement without having to exit this screen. Pressing the Exit button will return the user back to the Meter screen.. 15

19 4.11 System Settings Holding down the Mode button for three seconds while displaying the Meter screen will give the user access to the System Settings screen: This screen allows the user to select a detailed setup screen for System Setup, Base Unit Network Location, Handset Network Setup and Base Unit Network Setup. Network Addresses Model IPv4 Address Subnet Mask Default Gateway PMPRO-H PMPRO-32A Note: All base units can be reset back to factory defaults with the following procedure. 1. Power down base unit and Remove SD card. 2. Creating a blank reset.txt file on the SD card with a PC. 3. Re-insert SD card into Base unit. 4. Power up base unit. 16

20 System Setup When System Setup is selected and the Enter button is press in the Settings screen the System Setup screen will be displayed: This screen gives the user access to adjust settings for the Power-Mate system. By highlight the setting then pressing the Edit button will start the cursor flashing on the first number, use the arrow buttons to adjust to the appropriate values and press the Save button to accept new value. Pressing the right arrow button at the end of the line will make it roll back to the beginning. Setting the current time will change the base units clock, all of the time values in the handset are transmitted from the base unit. Brightness setting is for user preferred screen brightness. Recalibrate screen will guide the user through a series of touches to calibrate the touch screen. Pressing the Exit button will return the user back to the Meter screen. 17

21 Base Network Location When Base Unit Network Location is selected and the Enter button is press in the Settings screen the Base Network Location screen will be displayed: This screen allows the user to change the IP address that the handset unit will use to communicate with the corresponding base unit. 18

22 Handset Network Setup When Handset Network Setup is selected and the Enter button is press in the Settings screen the Handset Network Setup screen will be displayed: This screen is used to setup the Handset s IP Address, Subnet Mask and Gateway address. Please see your network administrator for these settings when connecting to a company network. 19

23 Base Unit Network Setup When Base Unit Network Setup is selected and the Enter button is press in the Settings screen the Base Network Setup screen will be displayed: This screen is used to send the Base unit IP Address, Subnet Mask and Gateway address. Please see your network administrator for these settings when connecting to a company network. 20

24 4.12 Run Time When the Mode button is pressed in the Meter screen the Run Time screen is displayed: This screen displays the amount of time the Power-Mate Pro has been running, in days, hours, minutes, and seconds. Once the Run button has been pressed, this timer will begin to increment. Pressing the Pause button will hold the timer value. Pressing the Run button again will make the Power-Mate Pro continue timing from this held value. The Reset button must be pressed before the Run button if the user wishes to begin timing again from zero. Holding the Mode button for three seconds will give the user access to the Timer Setup screen. Only in this screen can the user configure the count down timer settings. 21

25 4.13 Timer Setup Holding down the Mode button for three seconds while displaying the Run Time screen will give the user access to the Timer Setup screen: This screen allows the user to set up a count down timer by defining the amount of days, hours, minutes, and seconds the Power-Mate Pro is desired to run. The timer will display only hyphens when the Power-Mate Pro is set in count up mode. The first digit of the timer will flash allowing the user to increase and decrease its value by using the up and down arrow buttons respectively. Pressing the Right Arrow button will cycle to the next digit. Pressing the Exit button will return the user to the Run Time screen. Once a Timer value is set in this screen the Run Time screen title will show as End time and the value will change to the new timer duration. The value will count down while in run mode and stop at zero. All accumulated values will be held at this point until the Reset button is pressed. Setting Timer Duration back to dashes will return unit back to Run time mode. 22

26 4.14 Log View When the Mode button is pressed in the Run Time screen the Log View screen is displayed: This screen displays the actual real time and date for creating detailed logs. These logs can be set up to begin automatically by holding the Mode button for three seconds and entering the Logging Setup screen. On the Log View screen there is a Start button located on the right side of the display. When the Start button is pressed the logging begins and the button label changes to Stop. The Start Time will display the time when the current log began. The Power-Mate Pro will also indicate that it is logging at the top right of the screen. Whilst the Power-Mate Pro is logging, meter values will be recorded according to the set sample time. The user can alter the sample time by holding the Mode button for three seconds and entering the Logging Setup screen. Otherwise the default sample time of 5 seconds will be used. If the Run button is pressed after a log has already been recorded a warning message will appear. This message will warn the user that the previous log will be overwritten in order to save the new data. The user may cancel the new log to go back and record their results or they may continue and begin a new log by overwriting the saved data. All log data is stored on the Base Unit SD card and can be downloaded to the Hand Held SD card by pressing the Get Log button. This button is only visible when there is a log available for download. The log file is in a CSV format, which can be used directly with Excel. The following parameters are logged: Time Total Energy Total Cost Voltages L1, L2, L3 Currents L1, L2, L3 Power Factor L1, L2, L3 23

27 4.15 Logging Setup Holding down the Mode button for three seconds while displaying the Log View screen will give the user access to the Logging Setup screen: This screen is used to set up automated logs by saving the required start and end time. The Sample time set in this screen will also be used for all manual logs. The sample time controls how frequently the Power-Mate Pro will save data during the logging period. The first digit of the timer will flash allowing the user to increase and decrease its value by using the up and down arrow buttons respectively. Pressing the Enter button will cycle to the next digit. Pressing the EXIT button will return the user to the Log View screen. Once the logging times have been set, an automated log will begin once the start time is reached Warning Screens The Power-Mate Pro s metering specifications should never be exceeded. The software interface will warn the user if the input channels detect these limits being exceeded. 24

28 5. MEASUREMENTS 5.1 Overview The Power-Mate Pro is capable of metering the total cost for running any three phase system. The Power-Mate Pro measures the individual power consumption for each phase of the three phase system. The power consumption for each phase is calculated according to the three phase configuration, either Delta or Wye, being metered. The power consumption for each phase is then summed to determine the total power consumption for the three phase system. The input channels for the Power-Mate Pro measure the phase voltages and the line currents for the metered three phase system. The Power-Mate Pro uses these values to calculate the phase powers required for the total cost calculation. All of the voltage and current measurements are calculated as RMS values. Harmonics present in the input voltage and current waveforms are included in all calculations made by the Power-Mate Pro. This enables the Power-Mate Pro to measure distorted signals and not just three phase systems with linear loads. This feature is very useful when metering AC motors with adjustable speed drives. 5.2 Active Power The product of the voltage and current waveforms determines the instantaneous active power for a particular load. If a particular phase is supplied by the voltage waveform v(t) and produces a current waveform of i(t): Where, VK, IK are the RMS values for each voltage and current harmonic respectively. ψk, γk are the phase delays for each harmonic. The product of these two waveforms creates the following expression, p(t), for the instantaneous active power: 25

29 Averaging this expression over an integral number of line cycles removes all of the AC components. The Power-Mate Pro calculates the active power, P, for all phases as: Where, n is the number of line cycles. T is the period of the line cycle measurement. The polarity of the calculated active power value indicates the direction of power flow. A positive value indicates power is being consumed and a negative value indicates power is being generated. The active power values are read every 250ms and the Power-Mate Pro then displays them on the Hand-Held Unit. The Hand-Held Unit refreshes the displayed active power value every 1s. 5.3 Energy, Cost, Greenhouse Gas The Power-Mate Pro will accumulate energy values based on the values calculated for the active power. The active power is equivalent to the rate of energy flow per unit of time, joules/sec (watts). This is relationship is expressed by the following equation: The Power-Mate Pro accumulates the active energy by sampling the active power values every 125μs (8kHz). These sampled values are then used in the following equation to convert them into the active energy values: Where, T is the sample period of 125μs n is the discrete sample number The active energy values from each phase are then summed to calculate the value for the total active energy value. It is this total active energy value that is used to determine the respective cost and amount of Greenhouse gases produced from running the metered device. The active energy values are read every 250ms and the Power-Mate Pro then accumulates these readings before displaying them on the Hand-Held Unit. The Hand-Held Unit refreshes the displayed active energy value every 1s. 26

30 5.4 Reactive Power A phase load that contains reactive components, either capacitive or inductive, will cause a phase difference between the applied voltage waveform and the resulting current waveform. The reactive power is the power associated with these reactive components. The product of the voltage waveform and the current waveform after it is phase shifted by +90, determines the instantaneous reactive power. If a particular phase is supplied by the voltage waveform v(t) and produces a current waveform of i(t): Where, i (t) is the current waveform phase shifted by +90 for all harmonic components. VK, IK are the RMS values for each voltage and current harmonic respectively. ψk, γk are the phase delays for each harmonic. The product of the voltage and phase shifted current waveforms creates the following expression, q(t), for the instantaneous reactive power: Averaging this expression over an integral number of line cycles removes all of the AC components. The Power-Mate Pro calculates the reactive power, Q, for all phases as: The polarity of the calculated reactive power value indicates the type of load being measured. A positive value indicates an inductive load and a negative value indicates a capacitive load. The reactive power values are read every 250ms and the Power-Mate Pro then displays them on the Hand-Held Unit. The Hand-Held Unit refreshes the displayed reactive power value every 1s. 27

31 5.5 Apparent Power The apparent power is the maximum power value that can be delivered to a particular load. The product of the RMS values for the voltage and current waveforms determines the value of the apparent power: S = V rms x I rms This is how the Power-Mate Pro calculates the apparent power for each phase of the metered three phase system. Harmonic components present in the voltage and current waveforms are accounted for during the RMS calculation. The apparent power values are read every 250ms and the Power-Mate Pro then displays them on the Hand-Held Unit. The Hand-Held Unit refreshes the displayed apparent power value every 1s. 5.6 Phase Voltage The Power-Mate Pro measures all voltage values for the metered three phase system as phase voltages. The phase voltage is defined as the voltage between the active lead of one phase and the neutral of the three phase system. The Power- Mate Pro samples the voltage channels to calculate the RMS values for each phase voltage. This feature enables the Power-Mate Pro to accurately measure distorted voltage signals that do not have a sinusoidal relationship. The Power-Mate Pro uses the following equation to calculate the RMS values for each phase voltage: V RMS = 1 v 2 (n) N The RMS values for each phase voltage are read every 250ms and the Power-Mate Pro then displays them on the Hand-Held Unit. The Hand-Held Unit refreshes the displayed phase voltage value every 1s. N n=1 28

32 5.7 Line Current The Power-Mate Pro measures all current values for the metered three phase system as line currents. The line current is defined as the current flowing through the supply lead of a particular phase. This differs from the phase current, which is the current flowing through the load of a particular phase. The Power-Mate Pro samples the current channels to calculate the RMS values for each line current. This feature enables the Power-Mate Pro to accurately measure distorted current signals that do not have a sinusoidal relationship. The Power-Mate Pro uses the following equation to calculate the RMS values for each line current: I RMS = The RMS values for each line current are read every 250ms and the Power-Mate Pro then displays them on the Hand-Held Unit. The Hand-Held Unit refreshes the displayed line current value every 1s. N 1 (n) N i 2 n=1 5.8 Power Factor The power factor indicates the ratio of active power being consumed by the load compared to the apparent power. The Power-Mate Pro uses the following equation to calculate the power factor for the metered three phase system: PF = P S The cosine function can only be used to calculate the power factor for undistorted voltage and current waveforms. When the fundamental components of a distorted voltage and current waveform are in phase, the calculated power factor will equal unity when using the cosine function. However the actual ratio of the active power and apparent power will be less than unity. That is why the Power-Mate Pro uses the above equation to calculate the power factor values for the metered three phase system. The polarity of the calculated power factor indicates if the current waveform is leading or lagging with respect to the voltage waveform. A positive value indicates the current waveform is leading and a negative value indicates the current waveform is lagging. The power factor values are read every 250ms and the Power-Mate Pro then displays this on the Hand-Held Unit. The Hand-Held Unit refreshes the displayed power factor value every 1s. 29

33 6. SPECIFICATIONS Energy Accumulation Active Power Reactive Power Apparent Power Phase Voltage Measurement Specifications Maximum 274MWh Minimum 0.001Wh Measurement Error <1% Max Run Time 497 Day Maximum Minimum Measurement Error Maximum Minimum Measurement Error Maximum Minimum Measurement Error Maximum Minimum Measurement Error 23kW (Total) 7.68kW (Phase) 0.06W (Total) 0.02W (Phase) <1% (Total) <0.33% (Phase) 23kVAr (Total) 7.68kVAr (Phase) 1VAr (Total) 1VAr (Phase) <1% (Total) <1% (Phase) 23kVA (Total) 7.68kVA (Phase) 1VA (Total) 1VA (Phase) <1% (Total) <1% (Phase) 500V 80V <0.5% (60V-300V) 30

34 Line Current Power Factor Maximum Minimum Measurement Error 32A 30mA <0.5% (500mA-32A) <1% (50mA-500mA) Maximum 1.00 Minimum Measurement Error <1% (Total) (Power >1W) <0.5% (Phase) Temperature Thermal Stability Environmental Specifications Operating Range 0-40 C Storage Range 0-60 C Voltage +/ - 70ppm/ C Current +/ - 70ppm/ C Dimensions Mechanical Specifications (LxWxD) Base Unit 300x160x58mm Hand-Held Unit 158x97x32mm Weight Material Base Unit Hand-Held Unit Base Unit Hand-Held Unit 2.2kg 0.31kg PC/ABS PC/ABS 31

35 7. WARRANTY This product is guaranteed against faulty components and workmanship for a period of 12 months from the date of purchase. It is the responsibility of the purchaser to return the unit to the manufacturer or place of purchase with a copy of the sales receipt or invoice when requesting warranty repairs to be undertaken. After the warranty repairs or work is completed, the manufacturer will return the goods to the purchaser using a standard parcel service at no extra cost to the purchaser. If insurance or registered or express parcel service is required, the cost shall be borne by the purchaser. The Manufacturer is not responsible for goods lost or damaged by the courier service. Great care was taken to ensure the integrity of data and information and correct operation of this product. The Manufacturer though will not accept any claims for data loss, financial loss or any other losses or consequential damage resulting from the data, use or failure to perform of this product, no other guarantees are implied or given. To obtain warranty service on your Power-Mate Pro, please contact with your full name, return address and Invoice No., directly to: CABAC 8 Distribution Place Seven Hills NSW 2147 Ph: Internet: sales@cabac.com.au Name... Address Date of Purchase... Place of Purchase... Serial Number:... 32