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BK Precision 5335C, Руководство пользователя

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BK Precision 5335C Скачать руководство пользователя страница 43

CHAPTER 7. INTEGRAL OPERATION FUNCTION 

34 

 

Chapter 7

 

Integral Operation Function

 

This chapter describes the features and use of the integral function of the 5335C power meter in details. 

7.1 

Basic Concepts

 

The 5335C power meter can be used for integral operation of the current and power of the input unit. Technical 

indicators can be calculated. In addition, the range can be switched automatically in the Buy and Sell modes 
according to the input level so as to accurately complete integrate measurement. 

During operation of the air-conditioner, refrigerator, induction cook and other household appliances, the working 

status will change frequently, resulting in changes of the working current in a large scale. The current may 
decrease of dozens of amperes to a few milliamperes. Ordinary power measuring instruments can only be used for 
integral measurement within one range. If the measured value exceeds the current maximum range, the 
measurement result is inaccurate. You need to manually switch the range before integral measurement. Integral 
measurement of equipment subject to large current changes cannot be performed continuously. The IT9120 series 
power meter can automatically switch the range in the integral mode. Therefore, errors of integral measurement 
caused by manual range switching can be eliminated, and the power consumption of household appliances can be 
measured more accurately. See the schematic diagram below. 

 

Figure 7.1: Range Switching 

35 

Содержание 5335C

Страница 1: ...5335C Power Meter User Manual...

Страница 2: ...r on electrical conductors associated with these category ratings The category rating is a Roman numeral of I II III or IV This rating is also accompanied by a maximum voltage of the circuit to be tes...

Страница 3: ...d the recommended three conductor AC line power cable may result in injury or death Unless otherwise stated a ground connection on the instrument s front or rear panel is for a reference of potential...

Страница 4: ...ents must be made by qualified service trained maintenance personnel who are aware of the hazards involved when the instrument s covers and shields are removed Under certain conditions even with the p...

Страница 5: ...nstrument Return the instrument to B K Precision for service and repair to ensure that safety and performance features are maintained For continued safe use of the instrument Do not place heavy object...

Страница 6: ...SAFETY SUMMARY vii CE Declaration of Conformity This instrument meets the requirements of EMC Directive EN 61326 1 2006 EN 61000 3 2 2006 EN 61000 3 3 1995...

Страница 7: ...ch when instrument is ON Off Power This is the Out position of the power switch when instrument is OFF CAUTION indicates a hazardous situation which if not avoided will result in minor or moderate inj...

Страница 8: ...3 1 5 Wiring External Current Sensors 5 1 6 Power up 6 1 6 1 Power Line Connection 6 1 6 2 Fuse Requirements 6 1 6 3 Power up Sequence 6 Menu 7 2 1 SYSTEM menu 7 2 2 SETUP Menu 8 2 3 CAL ZERO 8 2 4 RA...

Страница 9: ...lter and Crest Factor Setting 15 3 4 1 Filter 16 3 5 Averaging Function 17 3 5 1 Index averaging 17 3 5 2 Linear averaging 18 3 5 3 Averaging function 18 3 5 4 Measurement function in harmonic measure...

Страница 10: ...USB RS232 and LAN communication interfaces Screen captures are saved via the USB peripheral port located on the front panel Voltage and current measurement precision is nominally 0 1 1 1 Features 4 3...

Страница 11: ...Key Name and function Waveform Display key press to view waveforms See Chapter 5 Harmonic Measurement key For viewing harmonic measurements See Chapter 6 Basic Measurement key The normal measurement s...

Страница 12: ...t Shunt Input 1 4 Measurement Connection Setup Depending on the amount of current that will flow through the meter 2 configurations are specified 1 Remove the protective cover over the current input t...

Страница 13: ...CHAPTER 1 GENERAL INFORMATION 4 Figure 1 3 Current terminal cover Figure 1 4 Low Current Wiring Setup Figure 1 5 High Current Wiring Setup...

Страница 14: ...2 6 for details Always disconnect the main current input when using an external sensor The ports are electrically connected and if both are connected measurement error and damage may occur 1 Connect...

Страница 15: ...2 1 Fuse Replacement 1 Disconnect the power cord 2 Locate the fuse box in the rear panel beneath the AC power socket Figure 1 7 3 With a small flat blade screwdriver insert the blade into the fuse bo...

Страница 16: ...system wide functions are set and viewed Figure 2 2 details such as the LAN MAC address date screen brightness system initialization settings reset and self test are accessed here See Table 2 1 Figur...

Страница 17: ...SYSTEM CONFIG Set date time beep and brightness SELF TEST Perform a self diagnostic INITIAL Reset device settings 2 2 SETUP Menu 2 3 CAL ZERO 2 4 RATIO SET This setting has the effect of scaling the...

Страница 18: ...tup Menu Figure 2 5 Information Screen is still shown and used Use the arrow keys to move between parameters and digits Use the knob to change the value of the selected digit To commit the setting cha...

Страница 19: ...CHAPTER 2 MENU 10 2 5 Under the setup menu 2 6 External Current Sensor Figure 2 6 Ratio Set Menu Figure 2 7 Ratio Set Menu Figure 2 8 Ratio Set Menu...

Страница 20: ...CHAPTER 2 MENU 11 Figure 2 9 Ratio Set Menu...

Страница 21: ...rmined For an 117V RMS AC line signal with little distortion and a purely real load power factor 1 the peak value is 1 414 117V 165V 1 414 is the approximate Crest Factor of a Sine wave So the appropr...

Страница 22: ...oltage and current range 3 2 1 Fixed range Select the required range from a number of options After selection the range will not change with the input signal For the voltage range when the crest facto...

Страница 23: ...the input signal cycle set in the measurement interval The measurement interval is the integer times of the test cycle The measured value of BK5335C is calculated by averaging sampling data in the me...

Страница 24: ...fers to the first point 1024 from the data updating cycle The sampling frequency of harmonic measurement is determined automatically by the signal cycle set as the PLL source in the instrument The sam...

Страница 25: ...ating rate can be set When the data updating rate is increased rapid load changes of the power system can be obtained When the data updating rate is decreased relative low frequency signals can be mea...

Страница 26: ...ON is selected the averaging function is enabled When OFF is selected the averaging function is disabled Mode Set the mode of the averaging function EXP index averaging often used for analysis of the...

Страница 27: ...easurement functions are obtained via operation in other modes and the obtained measurement function is affected averaging 1 Urms Umn Udc Urmn Uac Irms Imn Idc Irmn Iac P S and Q 2 Ucf Icf and WPAV ar...

Страница 28: ...The following measurement functions will not be affected by averaging Conventional measurement functions Fu Fi Ipk Ipk Upk Upk Time WP WP WP q q q and Fsyn Harmonic measurement functions k UU k and I...

Страница 29: ...e voltage effective current active power and power factor Figure 4 1 1 main measurement 4 0 1 Operation steps 1 In the Meter interface when the soft key corresponding to VIEW 4 is pressed 10 measureme...

Страница 30: ...the parameter displayed in the interface blue font background Press the right soft key corresponding to the parameter to adjust the parameter displayed at present P Q S and PF are set in sequence NOTE...

Страница 31: ...CHAPTER 4 METER DISPLAY images png Figure 4 4 images png Figure 4 5 images png...

Страница 32: ...CHAPTER 4 METER DISPLAY 23 Figure 4 6 images png Figure 4 7...

Страница 33: ...to facilitate observation The waveform display interface includes the vertical axis and the horizontal axis 5 1 1 Introduction of soft keys on the interface When the button is pressed the initial wav...

Страница 34: ...tating the knob vertical voltage position vertical current position trigger level trigger delay level calibration AUTO Automatic adjustment when the soft key corresponding to this parameter is pressed...

Страница 35: ...igger point is generally displayed in the left of the display screen Following the trigger point the waveform is displayed on the display screen from left to right over time Before using the trigger f...

Страница 36: ...source trigger mode trigger slope and other trigger related configuration Detailed steps are as follows Operation steps 1 Press to enter the waveform display interface 2 In the waveform display inter...

Страница 37: ...th 1 s Trigger delay time Within 1 s 3 sampling cycles Table 5 3 External Trigger Input Specifications Minimum pulse width refers to the width of the high or low trigger level at least 1 s Trigger del...

Страница 38: ...e Select the button and the initial harmonic measurement interface below will appear Description of information of harmonic measurement interface Parameter name Parameter descriptions V_RANGE Voltage...

Страница 39: ...nd total harmonic distortion THD factor of different harmonics Harmonic lists can be displayed in the whole sequence odd sequence and even sequence Below is a whole sequence harmonic list Harmonic con...

Страница 40: ...he upper limit of analysis orders as the denominator f using the data of fundamental wave 1 order components as the denominator Parameters Instruction THD Formal Distortion factor calculation formula...

Страница 41: ...ers max is k 0 determined by the frequency of PLL source automatically 50 orders at most 6 2 2 PLL source In the harmonic mode 5335C adopts PLL to multiply the frequency of the input signal The freque...

Страница 42: ...instrument in case of changes of the PLL source or its frequency the correct measured value cannot be obtained at once 6 2 3 Harmonic analysis order The harmonic analysis order k is an integer number...

Страница 43: ...change frequently resulting in changes of the working current in a large scale The current may decrease of dozens of amperes to a few milliamperes Ordinary power measuring instruments can only be used...

Страница 44: ...P the negative watt hours of feedback power q ampere hour the sum of positive and negative Ampere hours q the consumption of positive Ampere hours q the negative ampere hours of feedback power and WPA...

Страница 45: ...gral ending time Timer Display the fixed integral time Table 7 2 Measurement Information 7 3 1 Integral operation Active power integral In watt hour displayed as WP watt hours the sum of positive and...

Страница 46: ...function Executable Unenforceable Unenforceable Synchronization Executable Unenforceable Unenforceable Data updating rate Executable Unenforceable Unenforceable Integral function parameter setting Int...

Страница 47: ...he real time start mode integration will not be started before the current time and date Integration will be started when the screen is updated once at least before the start time Stop set in the MANU...

Страница 48: ...s Operation steps 1 Press Integ to enter the integral display interface 2 In the integral measurement display interface Press the soft key corresponding to the START parameter to start or recover inte...

Страница 49: ...he serial port of a controller i e personal computer using a straight through RS 232 cable terminated with DB 9 connectiors Do not use a null modem cable Table 8 1 shows the pinout for the connector I...

Страница 50: ...unication baud rate Data bit 8 Stop bit 1 Parity none even odd EVEN eight data bits with even parity ODD eight data bits with odd parity NONE eight data bits without parity Start Bit 8 Data Bits Parit...

Страница 51: ...cimal points such as 192 168 111 24 Please ask the network administrator to provide an IP address Use DHCP network to automatically set the IP address Subnet masksetting The mask used when subnet webs...

Страница 52: ...Chapter 9 Specifications The specifications listed below are valid and specified for the following conditions Warm up time of 30 minutes Ambient temperature 23 5 Relative humidity 30 to 75...

Страница 53: ...whichever is less Input voltage transient 1s max 2 kV peak or 1 5 kV RMS whichever is less Input voltage common mode max 600 Vrms Voltage input impedance 2 M 13 pF in parallel typical Current input i...

Страница 54: ...004 I2 mA 0 5 to A or 0 00013 I2 of reading 0 00004 I2 mA 2 5 to 200 mA add to the DC current accuracy specification Power Measurement Accuracy Real power accuracy 2 3 CF 3 4 DC 0 1 0 2 F S 0 5 Hz f 4...

Страница 55: ...Hz 75 Hz to 150 Hz 150 Hz to 300 Hz 300 Hz to 600 Hz 600 Hz to 1200 Hz Sample rate Fund freq x 1024 Fund freq x 512 Fund freq x 256 Fund freq x 128 Fund freq x 64 Window width 1 2 4 8 16 Upper limit o...

Страница 56: ...isplay 480 x 272 Remote Interfaces USB RS232 LAN Power 100 to 240 VAC 50 60 Hz Power Consumption 50 VA max Dimensions W x H x D 8 4 x 3 5 x 14 214 5 mm 88 2 mm 354 6 mm Weight 6 2 lbs 2 8 kg Three Yea...

Страница 57: ...y out positioning and measurement during measurement and use This section describes all error information of the 5335C power meter as well as error causes and disposals All prompt information is liste...

Страница 58: ...than zero Error description The set time must be larger than zero Possible cause The set integral time is not correct Disposal Reset the set integral time Harmonic open fail Error description The harm...

Страница 59: ...ime setting is illegal Disposal Reset the system time Cal zero fail Error description Zero calibration fails Possible cause Communication abnormality Disposal Check the communication cable Table 10 1...

Страница 60: ...nspection of LCD screen Test dsp Self inspection of DSP Test beep Self inspection of the buzzer SelfTest is finished The instrument has finished the self test Softkey is not available The current soft...

Страница 61: ...up Check whether the power meter is started normally Check whether the instrument fuse is in good conditions Check whether other connectors are in good conditions and whether cables plugs and other p...

Страница 62: ...CHAPTER 10 ROUTINE MAINTENANCE 52 Check whether the instrument displays error information Use other instruments instead of this instrument for confirmation...

Страница 63: ...via our website www bkprecision com Exclusions This warranty does not apply in the event of misuse or abuse of the product or as a result of unauthorized alterations or repairs The warranty is void if...

Страница 64: ...accessories that you are using with the device Customers not on an open account must include payment in the form of a money order or credit card For the most current repair charges please refer to the...

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