Huazheng HZGC3521 Series Manual
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Huazheng HZGC3521 Series Manual

Three-phase energy meter field calibrator
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HZGC3521 Series
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Manual
Model No：HZGC3521 Series
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Product Name：
Three-phase energy meter field
calibrator
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  • Page 1 HZGC3521 Series Manual Model No：HZGC3521 Series Product Name： Three-phase energy meter field calibrator...
  • Page 2 Three-phase energy meter field calibrator Introduction Thank you for using Our company HDGC energy meter field calibrator product. The handheld three-phase energy meter field calibrator is a series of Our company’s products, and is a product integrated with low-voltage energy meter calibrator and low-voltage metering device calibrator.
  • Page 3 Three-phase energy meter field calibrator Our company is committed to making continuous improvement in product functions, and improving service quality, so the company remains the right to change any products and software programs described in this manual as well as the content of this manual without prior notice. The purpose of this manual is to help you correctly use Our company product, but does not mean any description of the hardware and software configuration of the product.

  • Page 4: Table Of Contents

    Three-phase energy meter field calibrator Catalog 1. Hardware description ..........................6 1.1 External Structure of Calibrator ................... 6 1.2 Introduction to top panel structure ..................7 1.3 Introduction to right panel structure ................. 8 1.4 Back Introduction ......................... 9 1.5 Parts List ............................. 10 2.
  • Page 5 Three-phase energy meter field calibrator 2.8 Mode of power supply ......................... 33 2.9 Charging ............................35 2.10 Adjustment of LCD Contrast ....................37 2.11 Input and delete characters ....................37 3. Methods of Use of Functions ......................41 3.1 Calibration information settings ..................41 3.2 Check the active and reactive power of energy meter at the same time ....
  • Page 6 Three-phase energy meter field calibrator 3.13 Communications ........................... 76 3.14 Storage ............................77 3.15 Query ............................. 79 3.16 About the pilot test measurement ..................81 4. Frequently Asked Questions ......................84 5. Instrument Maintenance ........................87 6. After-sales service ..........................88 7.

  • Page 7: Hardware Description

    Three-phase energy meter field calibrator 1. Hardware description 1.1 External Structure of Calibrator...

  • Page 8: Introduction To Top Panel Structure

    Three-phase energy meter field calibrator 1.2 Introduction to top panel structure...

  • Page 9: Introduction To Right Panel Structure

    Three-phase energy meter field calibrator 1.3 Introduction to right panel structure...

  • Page 10: Back Introduction

    Three-phase energy meter field calibrator 1.4 Back Introduction...

  • Page 11: Parts List

    Three-phase energy meter field calibrator 1.5 Parts List Name Quantity Remark TTthree-phase energy meter 1 set Standard configuration field calibrator TTTest line 1 set Standard configuration（ Voltage, current test line） Photoelectric sampler 1 Pcs Standard configuration 5A clip-on ammeter 3 Pcs Standard configuration（each for A, B and C phase）...
  • Page 12 Three-phase energy meter field calibrator 1 Pc Standard configuration TTTerminalTT TTCharging CableTT TTVoltage, currentTT TTalligator 10 Pcs Standard configuration（10 Pcs） clip Instrument package 1 Pcs Standard configuration PC communication line 1 Pcs Standard configuration Power adapter 1 Pcs Selective configuration U disk 1 Pcs Selective...

  • Page 13: Getting Started

    Three-phase energy meter field calibrator 2. Getting Started 2.1 Introduction to main functions  Check the energy error of all mechanical and electronic energy meters, and can check the main and auxiliary meter in the same circuit or the active and reactive meter in the same circuit at the same time;...

  • Page 14: Main Features

    Three-phase energy meter field calibrator More complete wrong wiring recognition functions, and IB access and reverse connection  of TV, TA polarity can be recognized; The instrument power is supplied with battery and test circuit, and can be online charged. ...
  • Page 15 Three-phase energy meter field calibrator Support U disk: download calibration data through U disk, and serial port upgrading  software. Communicate with the PC, very easy to interface with the original database and  management system. HDGC Meter Management System software can be equipped to realize paperless office.
  • Page 16 Three-phase energy meter field calibrator the country.  Ensure the accuracy of electric energy (0.1% or 0.05%) in the temperature range of -20 ℃ ~ +40 ℃. Four-quadrant energy measurement.  Equipped with class-0.2 5A clamp (the opening and closing non-repetitive errors, contact ...

  • Page 17: Operating Precautions

    Three-phase energy meter field calibrator 2.3 Operating Precautions Warning: This instrument is a live working device, so for your safety, please observe the relevant provisions of state work safety, and operate in strict accordance with the operating instructions to field calibration of power metering devices. ...
  • Page 18 Three-phase energy meter field calibrator current input, and "-" terminal is the current output, which can not be wrong; Clip-on ammeter colors represent different phases: Yellow-A phase, Green-B phase, and  Red-C phase; A different phase of clip-on ammeter will not be used interchangeably, otherwise it will affect ...

  • Page 19: Operating Procedures For The Instrument

    Three-phase energy meter field calibrator 2.4 Operating procedures for the instrument The instrument in use is operated in strict accordance with the operating procedures. Start the instrument power supply→ connect the instrument test line → connect the test line and clip-on ammeter at the end of energy meter → set test parameters→ check→ remove the test line at the end of energy meter →close the instrument →remove the test line at the end of the instrument.

  • Page 20: Connection

    Three-phase energy meter field calibrator 2.5 Connection 2.51 Method for checking the connection of three-phase three-wire energy meter: When determining the three-phase three-wire energy meter, the instrument’s Ua, Uc, and COM voltage terminal connect to the measureHDGC energy meter’s Ua, Uc, Ub, respectively, TTTT and the instrument’s A, C phase current terminal connect to the energy meter’s Ia, Ic (B phase voltage, current line do not connect to the instrument);...
  • Page 21 Three-phase energy meter field calibrator 2.52 Method for checking the connection of three-phase four -wire power meter: TTTT TTTT TTTT When measuring the three-phase four-wire, the instrument’s Ua, Ub, Uc, COM voltage TTTT TTTT TTTT TTTT TTTT TTTT TTTT TTTT TTTT terminal connect to the measured energy meter’s...
  • Page 22 Three-phase energy meter field calibrator 2.53 Method for checking the connection of single -phase energy meter: TTTT TTTT TTTT Optionally select one of A, B and C-phase voltage terminal of the instrument and connect to TTTT TTTT TTTT " fire" line of the measured energy meter , and...
  • Page 23 Three-phase energy meter field calibrator As shown below (voltage from the inlet port of fire line)
  • Page 24 Three-phase energy meter field calibrator As shown below (voltage from the outlet port of fire line):...
  • Page 25 Three-phase energy meter field calibrator 2.54 Pulse input connection According to calibration methoHDGC useHDGC , connect the corresponding pulse input device ( optoelectronic sampler, manual switch or electronic energy meter pulse input plug to the optoelectronic outlet. 2.55 Check the main and secondary meter at the same time Take three-phase four-wire meter as an example.

  • Page 26: Introduction To The Main Screen

    Three-phase energy meter field calibrator 2.6 Introduction to the main screen Open the instrument power supply , and the screen displays the following interface:...
  • Page 27 Three-phase energy meter field calibrator The calibrator can check the main and secondary meter or active and reactive power at the same time, and can improve working efficiency. Open the instrument, press 【 SWITCH TO 】 to switch, and enter into the "double meter" calibration interface; then click it and come back to the single-meter calibration interface.
  • Page 28 Three-phase energy meter field calibrator Field settings: Constant: refers to the constant of the energy meter under test; N: refers to how many times of instrument pulse before an error is calculated. Specific to t he mechanical energy meter, it is how many times of black pointers before an error is calculated.
  • Page 29 Three-phase energy meter field calibrator energy meter and the actual power consumption value). Electrical Parameters Area: Show all electrical parameters, which are summarized as follows: Ua, Ub, Uc, Ia, Ib, Ic, F (frequency), Pa, Pb, Pc, Qa, Qb, Qc, ΣP, and ΣQ ФA (the angle between A-phase voltage and current) ФB (the angle between B-phase voltage and current) ФC (the angle between C-phase voltage and current)
  • Page 30 Three-phase energy meter field calibrator small plug icon; when the voltage terminal supplies power, the battery icon is an up small plug icon; when the battery supplies power, the battery icon is a small battery icon. When the mode icon of power supply is red, it represents the manual mode of power supply;...

  • Page 31: Description Of Function Keys

    Three-phase energy meter field calibrator 2.7 Description of Function Keys...
  • Page 32 Three-phase energy meter field calibrator 【F1】 ： a function key used to view phase-A voltage and current harmonics in the state of harmonic analysis 【F2】 ： a function key used to view phase-B voltage and current harmonics in the state of harmonic analysis 【...
  • Page 33 Three-phase energy meter field calibrator 【3 | HARMONIC】 ： number 3, def and harmonic analysis 【4 | KWH CACU.】 ：number 4, ghi, and test meter’s indicating character, or electrical appliance power consumption 【5】 ：number 5 【6|U-DISK】 ： number 6, mno and instrument storage data dump U disk, read calibration plan from U disk, read user information from U disk, and upgrade the instrument via U disk;...

  • Page 34: Mode Of Power Supply

    Three-phase energy meter field calibrator 2.8 Mode of power supply The instrument is provided with automatic and manual selection mode of power supply, which are switched by【F4】key (switch from manual to automatic mode by pressing【F4】key) When the instrument is in the automatic selection mode of power supply, the power mode identifier is yellow;...
  • Page 35 Three-phase energy meter field calibrator 2.82 Terminal power supply Manual selection mode of power supply： In the manual selection mode of power supply, the power supply mode identifier at the lower right corner of the instrument screen is a little red upward plug icon (as shown: press【F4】to switch to the battery power supply.

  • Page 36: Charging

    Three-phase energy meter field calibrator 2.9 Charging There are three ways to recharge the instrument, that is, the voltage terminal charging cable charges the instrument battery, the field calibration voltage charges the instrument battery, and the adapter charges the instrument battery; When the instrument battery is charged, it takes about 8 hours to charge the battery fully;...
  • Page 37 Three-phase energy meter field calibrator Note: When the battery voltage reaches 4.3V, the battery is fully charged 2.92 Check on-site charging 1. Press【F4】key on the field check interface, and the interface will prompt " the mode of battery power supply replaces ... " 2.

  • Page 38: Adjustment Of Lcd Contrast

    Three-phase energy meter field calibrator Note: when the instrument is used on the indoor calibration console, select battery or adapter power supply as the mode of power supply, and the voltage terminal power supply will affect the output voltage accuracy or harmonics of the calibration console. 2.10 Adjustment of LCD Contrast Thanks to the technical characteristics of LCD screen itself, its contrast will change with the changes in ambient temperature.
  • Page 39 Three-phase energy meter field calibrator input mode, and if icon appears, it is the Arab digit input mode. The item of system management input speed contains the character input speed setting function (see the instructions to input speed setup in system management). Example: input "PEC"...
  • Page 40 Three-phase energy meter field calibrator...
  • Page 41 Three-phase energy meter field calibrator 2.112 Delete characters Delete entereHDGC characters , move the cursor to the characters to be deleted, press to delete. 【F4】key Example: delete the check operator "PEC" in the user information storeHDGC calibration data. By 【← ↑ → ↓】, move the cursor to "PEC", and then press 【F4】key to delete. In this state, click【Query】key once to delete a character.

  • Page 42: Methods Of Use Of Functions

    Three-phase energy meter field calibrator 3. Methods of Use of Functions 3.1 Calibration information settings Constant: This is to set the energy constant of the energy meters measured and the constant ranges from 1 to 99999; it supports from ordinary mechanical single-phase energy meters to the latest three-phase electronic energy meters, and the constant unit is Plus/kW.h For instance: when the meter constant is 600Plus/kW.h Press 【...
  • Page 43 Three-phase energy meter field calibrator calculates an error. By "↑ and ↓", move the cursor for N (number of turns) setting item, and input 02 (as shown on: ) via the keyboard "↓" or【 】key to lock the input number. The instrument receives an error after calculating two pulses. Active and reactive：...
  • Page 44 Three-phase energy meter field calibrator "Manual." Operating method: Press "↑ and ↓", the cursor jumps to the photoelectric and manual setting item, and press the "←, →" key to select the photoelectric or manual. Press "↑, ↓" key to move the cursor to the photovoltaic (manual) setting item, and through the "←, →"...
  • Page 45 Three-phase energy meter field calibrator must be set correctly. The usual metering box is large when load current is designed, current is not directly input to the energy meter, but is transformed by TA and sent to the energy meter, where the transformation ratio to be set is the transformation ratio on the TA nameplate.
  • Page 46 Three-phase energy meter field calibrator Notes to check parameter settings: 1. "Photoelectric" mode and "manual" mode. For example: check three-phase mechanical watt-hour meter, the energy constant is 450 r/kW.h, and the number of turns is set to 3. When the "photoelectric” mode is used for calibration, each the black pointer of the energy meter walks one circle, the photoelectric sampler will produce a pulse;...

  • Page 47: Check The Active And Reactive Power Of Energy Meter At The Same Time

    Three-phase energy meter field calibrator 3.2 Check the active and reactive power of energy meter at the same time The calibrator simultaneously measures the active and reactive error of energy meter. For example: Three-phase three-wire electronic energy meter 3 × 100V, 5A clip-on ammeter input, the active constant of the energy meter is 8000r/kW.h, and the constant of rewatt-hour meter is 8000r/kvar.h.
  • Page 48 Three-phase energy meter field calibrator 1. Open the instrument, and press【SWITCH TO】to enter the "double meter" check interface; 2. Press 【 SET】meter 1 Constant, and enter "08000"; press 【 ↓】 to lock, and move the cursor to N (number of turns) setting item; 3.

  • Page 49: Measure The Comprehensive Error Of Energy Meter

    Three-phase energy meter field calibrator Note: you can also check separately the active or reactive power; when you separately check the active power, you can input any value to the reactive power parameter. When you separately check the reactive power, you can input any value to the active power parameter.

  • Page 50: Clip-On Ammeter Self-Checkinginging

    Three-phase energy meter field calibrator 3.4 Clip-on ammeter Self-checkinginging Clip-on ammeter self-checking function is a patented technology of , and by use of this function, the error checking and correction of clamp transformers can be done. Clip-on ammeter in the course of use will generate some errors due to the environment and other outside influences, the error inspection and correction can be completed by using the self-check function;...
  • Page 51 Three-phase energy meter field calibrator As shown below: 5. After correction, press【 】 to save the error, and press【EXIT】key to return to the main...
  • Page 52 Three-phase energy meter field calibrator screen Notes: 1) Before correcting the clip-on ammeter, the best clean the clamp mouth; 2) Keep the clip-on ammeter as far as possible from high current, otherwise it will affect the accuracy of correction; 3) Correcting the clip-on ammeter lasts about 3 minutes, during which the instrument can not be shut down, and other operations can not be carried out;...

  • Page 53: Transformation Ratio Measurement

    Three-phase energy meter field calibrator 3.5 Transformation ratio measurement Transformation ratio measurement is designed for electricity inspection. When primary current is selected, the corresponding clip-on ammeter is placed on the interface of A-phase clip-on ammeter, and C-phase 5A clip-on ammeter is placed on the secondary TA, to measure the primary current value (I1), secondary current value (I2), and the angle the (ФI1I2) and TA ratio between the primary current and secondary current.
  • Page 54 Three-phase energy meter field calibrator setting item of the secondary clip-on ammeter; select 5A through【←】 【→】key. As shown below: 4. After the value is set, press【 】to begin measuring the transformation ratio value. View...
  • Page 55 Three-phase energy meter field calibrator the measurement data, press the【EXIT】key to exit, and come back to the main interface. Measure the transformation ratio of other phases by clipping the large and small clip-on ammeter onto the primary current and secondary current of TA of the phase to be measured, respectively.

  • Page 56: Analysis Of Search Line

    Three-phase energy meter field calibrator 3.6 Analysis of search line Under the condition of different power factors, the error results identified by the instrument are not the same, but the result of each power factor is unique. Press【2 | CHECK-L】key to enter the search line page.
  • Page 57 Three-phase energy meter field calibrator After entering the search line function, press【SET】key and move the cursor to the setting item of load property; press 【← →】key to select the inductivity> = 0.5L/inductivity or <0.5L/or coactivity> 0.5L load nature, press【 】key, and a hexagonal diagram of field connection shows on the right;...
  • Page 58 Three-phase energy meter field calibrator 3. When error connections are identified, the power factor can not be on the basis of COSФ displayed by the instrument itself, because if the field connection is wrong, COSФ does not reflect the real power factor of the load. 4.
  • Page 59 Three-phase energy meter field calibrator Voltage and current connection are not The same as three-wire connecteHDGC with each other by mistake Voltage anHDGC current circuit are not The same as three-wire shorted or opened Basically the same secondary voltage The same as three-wire he same three-phase load...

  • Page 60: Harmonic Analysis

    Three-phase energy meter field calibrator 3.7 Harmonic Analysis Function Description 1. The measured signals can be analyzed by 2nd to 51st harmonic, and the total harmonic distortion, odd, even and the harmonic content can be tested. (Note: National standards require testing 2nd to 21st harmonic) 2.
  • Page 61 Three-phase energy meter field calibrator After entering the interface, the scale shows the content of A-phase current and voltage harmonics, and the largest first harmonic of the scale line is full degree. If the harmonic is very small, only a few millionths, such as a maximum of 0.06%, the percentage of the highest scale is 0.06%, and the subtle harmonic is amplified at a glance.
  • Page 62 Three-phase energy meter field calibrator and electrical instrument and the utilization rate of instrument; 3. Making the electrical instrument (rotating machine, capacitor, transformer, etc.) losses rise, boosting the insulation aging, and thus shortening the life; 4. Enabling the relay protection, automatic instrument, computer system, and many electrical instrument not to work properly;...

  • Page 63: System Management

    Three-phase energy meter field calibrator 3.8 System management Press 【 SYST 】 into the management system, and display the following screen. System management can be used to set time, text input speed and other settings, as well as U disk management, factory setting and other functions.
  • Page 64 Three-phase energy meter field calibrator Press【 】time is set, and return to the system management interface. 3.82. Input speed Through 【 ← 】 and 【 → 】 key, select the level input speed Press 【 2 】 key, input the speed setting area, and use 【 ← 】 and 【 → 】 key to select the input speed of 0-3 grade;...
  • Page 65 Three-phase energy meter field calibrator Note: the input speed mainly refers to the interval speed between a number of letters input on the same key, the smaller the value, and the shorter the interval time. 3.83. U disk management Through U disk management, U disk font can be upgraded, a program is uploaded from U disk, and data are saved into U disk.
  • Page 66 Three-phase energy meter field calibrator Upload program from the U disk: Read U disk calibration plan, press【2】key, and the interface shows "Please insert U disk" prompt, insert U disk, press【 2 】 key and the interface displays "uploading program"; when the screen prompts "Uploading calibration plan is successful", the uploading of a calibration plan is completed.
  • Page 67 Three-phase energy meter field calibrator 1) Open the instrument, and press【READ】key to enter the check plan read page; 2) Move the cursor through 【 ↓ 】 key to the 000,044 check plan to implement; 3) Click 【 】 key to enter the main check interface to implement the check plan; Note: If you fail to find the check task you want on the current page, search through 【...
  • Page 68 Three-phase energy meter field calibrator 3.86. Charge the battery Charge the instrument battery, which takes about 8 hours until the battery is fully charged; the full battery can maintain the instrument to keep 4-hour uninterrupted work. Connect the red charging cable to any of the instrument’s A, B, C-phase voltage terminal ports, and connect the black cable to COM port of the instrument;...

  • Page 69: User

    Three-phase energy meter field calibrator 3.9 User User function is used to inquire and modify the user information in the current main interface check data, including the work order number, user number, user name, meter number, checker and other data members; and can modify user information. For example: view the user information of a current check task, and change the user name to "PEC "...
  • Page 70 Three-phase energy meter field calibrator...

  • Page 71: Indicating Character Measurement

    Three-phase energy meter field calibrator 3.10 Indicating character measurement Press 【 4 | KWH CACU. 】 key to enter the indicating character measurement interface.

  • Page 72: Inquire Calibration Plan

    Three-phase energy meter field calibrator Note: If the current transformation ratio is set, you need to return to the main interface to set the transformation ratio, and calculate the loss in the transformation ratio. 1. After it is set, press 【 】...
  • Page 73 Three-phase energy meter field calibrator 2. By【↓】key move the cursor to the calibration plan with meter number of 000 044; 3. Click OK to enter the main interface to verify the implementation of the calibration plan. Note: If the current page to find the check did not find the task, by 【 ← →】key to search page Delete a single calibration plan:...
  • Page 74 Three-phase energy meter field calibrator Press【 Query】 key to enter the calibration plan inquiry interface, and turn page by 【 ←】 【 →】 ; through【↑】 and 【↓】move the cursor, and press 【F4】 key on the check record required to be deleted, that is, the current cursor record is deleted.

  • Page 75: View Waveform

    Three-phase energy meter field calibrator 3.12 View Waveform Calibrator can view each phase of voltage and current waveform. For example: View the waveform of Ua, Ia 1. Press【8|WAVEFORM】key to view the waveform screen, which displays A-phase voltage waveform...
  • Page 76 Three-phase energy meter field calibrator 2. P ress【 ↑】 key to display A -phase current waveform TTTT Note : through ↓ ↑】to switch and view the waveform of different phases of U, I 【...

  • Page 77: Communications

    Three-phase energy meter field calibrator 3.13 Communications HDGC management software can downloaHDGC a calibration plan through the serial port to the instrument , and meanwhile, can read the check records storeHDGC in the instrument. For example: reaHDGC the check data in the instrument from the 8800...

  • Page 78: Storage

    Three-phase energy meter field calibrator 3.14 Storage Storage means that the measured electrical parameters, error, time, set parameters, hexagonal diagrams and others are stored in the instrument’s database, for user query. The instrument can store a total of 6,000 test data, and further storage will not be inquired in the instrument;...
  • Page 79 Three-phase energy meter field calibrator...

  • Page 80: Query

    Three-phase energy meter field calibrator 3.15 Query Query is to inquire the historical check record and data stored in the instrument. For example: view the check data with work order No. 000044 1. Press 【 Query 】 to go into the calibration plan query page, where you can see a list of calibration plans indexed by table number, user name and check time 2.
  • Page 81 Three-phase energy meter field calibrator...

  • Page 82: About The Pilot Test Measurement

    Three-phase energy meter field calibrator 3.16 About the pilot test measurement The instrument is equipped with automatic and manual selection mode of power supply. When you automatically select power supply, there are three modes of power supply, adapter, voltage terminal and battery. Priority is given to automatically select the adapter power supply; if there is no adapter, you can automatically select voltage terminal power, and if there are no adapter and voltage terminal, you can select the battery power supply;...
  • Page 83 Three-phase energy meter field calibrator Calibration method for basic error of the calibrator: Calibration signal is from the low-frequency output signal of standard energy meter and is input from the signal (FI1 or FI2 level signal) end of the photoelectric head interface on the calibrator panel.
  • Page 84 Three-phase energy meter field calibrator The meter constant is calculated as follows: Meter constant = the number of pulses per kilowatt-hour dividing the number of fractional frequency Note: the error read out from the calibrator using this calibration method is not its actual error, and the actual error of the calibrator is equal to the absolute value of the error shown by it, with an opposite sign.

  • Page 85: Frequently Asked Questions

    Three-phase energy meter field calibrator 4. Frequently Asked Questions 4.1. Q: Press the power switch key, but the instrument has not been opened, why? A: If the voltage terminal has no input voltage or the power adapter is not used, the battery may have no electricity.
  • Page 86 Three-phase energy meter field calibrator e) The manual and photoelectric settings are not correct; ② Check whether the direction of the clip-on ammeter is reverse. 4.4 Q: At the time of field test, the error fluctuation is obvious, how do? A: There are several possible reasons: a) In direct sunlight, it is best to use an object to cover the photoelectric sampler, to prevent light from interfering the photoelectric sampler...
  • Page 87 Three-phase energy meter field calibrator d) The on-site harmonic interference is too large. 4.7 Q: You can hear a "beep" sound from the instrument; but there is no display on the screen or the display is very light, why? A: This is caused by too weak LCD screen brightness. In the state of main interface, press "↑, ↓"...

  • Page 88: Instrument Maintenance

    Three-phase energy meter field calibrator 5. Instrument Maintenance  The instrument should avoid from being stored in too moist environment.  The instrument is a high-precision instrument, handle with care.  Clip-on ammeter is a precision instrument, and should be particularly careful in use; prohibit throwing, knocking or hitting, so as not to affect the performance of the clip-on ammeter.

  • Page 89: After-Sales Service

    Three-phase energy meter field calibrator 6. After-sales service If you are using, you need our engineers to provide you with: ● Technical consultation ● Product upgrading ● Answer difficult problems in use Please contact us. Our product engineers will provide you with complete solutions and friendly service. We shall implement the warranty of the problems related to the calibrator in normal use from the date of sale within one year, and provide lifetime maintenance services.

  • Page 90: Appendix

    Three-phase energy meter field calibrator 7. Appendix Appendix 1: usage of photoelectric sampler When the photoelectric sampler is calibrated on the site, its accurateness and quickness to light will have a direct impact on the efficiency of field work. Our company attaches great importance to the development of optoelectronic sampler and supporting quality starting from the HDGC-1 calibrator, and offers three different solutions to meet different needs.
  • Page 91 Three-phase energy meter field calibrator 3) After the black flag turns, if the red indicator light is still on or if a wrong pulse is output or the green indicator light is off, the front and distance or up and down position should be adjusted; after the red indicator light goes out or the green indicator light is on, light focusing is completed.
  • Page 92 Three-phase energy meter field calibrator Appendix 2: Specifications Voltage range AC 30-480V Current range Terminal input (double overloaHDGC Clip-on ammeter input 5A 20A 100A 500A 1000A Clip-on ammeter input 5A、20A ±0.2%（Clip-on ammeter with self-correction function） 100A、500A、1000A ±0.5% FL=36000P/KWh FH=3.6×10000000P/KWh Energy pulse constant FL=36000×5/rated current(P/KWh) Others FH=3.6×10000000×5/ rated current (P/KWh)
  • Page 93 Three-phase energy meter field calibrator Basic error U.I Harmonic measurement Terminal input Measurement range 2-51 Harmonics ±0.01% （ Relative to 100% Active energy ±0.1% ±0.05% measurement accuracy fundamental Reactive Energy ±0.1% Other technical indicators Power ±0.1% ±0.05% Power supply AC57.7～480V（50～60Hz) Voltage ±0.1% ±0.05% Power consumption...
  • Page 94 Three-phase energy meter field calibrator Appendix 3: HDGC energy meter computer management system HDGC field calibrator energy meter management system developed by Company is a simple, automated and highly intelligent management system. It combines test data of field calibrator and powerful processing functions of PC, and automatically forms various reports. It consists of several modules as follows: 3.1.
  • Page 95 Three-phase energy meter field calibrator 3.3. Statistical Report 3.3.1 Statistics report of meter test Including user ID, name, number, installation address, model, specification, manufacturer, serial number, grade, meter constant, PC, CT transformation ratio, ratio, Ia, Ib, Ic, power factor, error before adjusting, error after adjusting, peak segment, flat segment, valley segment, general meter code, category, main checker, rotation date, next rotation, calibration date and calibration persons.

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