PEC-DZNThe series is a carefully designed high-performance single-phase intelligent energy meter calibration device, specially designed according to national and industry standards, and combined with the working characteristics of power supply measurement, technical supervision, and intelligent energy meter manufacturers. It can meet your various needs in intelligent energy meter calibration now and in the future.

Convenient verification features:

l Professional verification of smart energy meters that comply with State Grid standards

l High brightness of each tableLEDError display

l A wider range of current gear output settings

l Unique dual circuit current output

l RS-485Multiple communication modules including infrared and carrier

l Quick and convenient crimping meter wiring method

l Reliable and stable programmable power source

Flexible system features:

l RJ-45/RS-232/RS-485/infrared/Carrier communication interface

l Microcomputer automatic verification operation

l Manual keyboard verification operation

l Flexible setting of verification scheme

l Multiple report formats and customizable according to individual preferences

l Communication protocol for smart energy meters

l Barcode input and networking function

1 Basic experimental functions

1.1 Basic functions:

——Basic error and standard deviation verification can be carried out according to the prescribed methods.

——Support automatic calibration of smart energy meters and multifunctional energy meters.

——Support automatic calibration of both direct connected and transformer connected energy meters.

——Support the verification of active and reactive energy in both forward and reverse directions, as well as reactive energy in four quadrants.

——Support special requirements for multi rate meter calibration and have time-sharing measurement function.

——Support simultaneous calibration of energy meters with different constants, accuracy levels, and communication protocols.

——The intelligent distributed error meter supports multiple test state settings and displays.

——Each meter has an independent error display window, and the display accuracy can be set.

——The verification software supports multi-level management permissions and various weekly inspection plans.

——The verification software supports setting multiple verification schemes, which can be copied, modified, stored, and deleted at will.

——The verification software supports setting multiple impact test schemes at will.

——The verification software has a breakpoint restart function, which supports pausing and resuming experiments midway. The verification software also supports single step operations.

——The device has a keyboard manual operation function.

——The verification software supports DL/T 645-2007 "Multi functional Energy Meter Communication Protocol" and is compatible with other communication protocols.

——The verification software supports storage, copying, printing, uploading, and remote control of verification results.

1.2 Start up test:

1.3 Submersible test:

1.4 Verification constant:

1.5 Rate period text test:

1.6 Daily timing error verification:

1.7 Time slot switching error verification:

1.8 Verification of demand cycle and demand indication error:

1.9 Maximum demand and combination error verification:

1.10 Tested RS-485 communication interface:

1.11 Infrared communication interface of the tested meter:

1.12 Carrier communication interface of the inspected table:

1.13 Harmonic influence test:

1.14 Frequency impact test:

1.15 The gradual change in voltage affects the experiment:

1.16 Voltage sag or short-term interruption impact test:

1.17 Error variation test:

1.18 Error consistency test:

1.19 Load current fluctuation test:

1.20Power consumption test (select function)

2 Intelligent energy meter test function

2.1 Communication protocol test

2.2 Current overload test

2.3 Power supply voltage impact test

2.4 Short term overvoltage test

2.5 Test of Energy Indication Error during Rate Period

2.6 Measurement and indication combination error test

2.7 Experiment on the Influence of Temperature on Daily Timing Error

2.8 Experimental Study on the Influence of Environmental Temperature on Error

2.9 Self heating effect test

2.10 Voltage range test

2.11 Demand measurement test

2.12 Active combination test

2.13 Reactive power combination test

2.14 Memory data comparison test

2.15 Local cost control function test

2.16 Remote cost control function test

2.17 Accuracy test of remaining power decrease

2.18 Step by step electricity price switching function test

2.19 Rate and Time Period Switching Function Test

2.20 Step by step electricity price cost control settlement, alarm control, and removal function test

2.21 Load switch function test

2.22 Load recording function test

2.23 Event recording function test

2.24 Alarm function test

2.25 Transfer and freeze function test

2.26 ESAMModule Information Security Certification Test

●output voltage

quantity Limitations:0.001V~400VAutomatic gear search

Adjustment range:0~120%Un

Adjust fineness: minimum1mV

Waveform distortion: ≤0.3%

Phase shift effect: ＜0.1%

Load adjustment rate: ≤±0.3% Full scale value (pure resistance, inductive, capacitive)

Accuracy of monitoring table: Standard table monitoring

●output current

quantity Limitations:0.001A~100AAutomatic gear search

Adjustment range:0~120%In

Adjust fineness: minimum0.1mA

Waveform distortion: ≤0.3%

Phase shift effect: ＜0.1%

Load adjustment rate: ≤±0.3% full-scale value

Accuracy of monitoring table: Standard table monitoring

●output phase

Adjustment range: 0.01°~360°

Adjust fineness: minimum0.01°

Load adjustment rate: ＜ ±0.3°

Accuracy of monitoring table: Standard table monitoring

●output frequency

Adjustment range:45.000Hz～65.000Hz

Adjust fineness: minimum0.001Hz

Load adjustment rate: ＜ ±0.1%

Accuracy of monitoring table: Standard table monitoring

●output power

Voltage circuit: Each meter position shall not be less than15VA

Current circuit: Each meter position shall not be less than20VA