جدول المحتويات
القانون والآثار المترتبة

التطبيق
زهيمنج brand of multi-functional monitoring and control meter is a high-performance intelligent instrument designed for real-time measurement and monitoring of power parameters and harmonics. It provides the following key functions:
- Real-time measurement of voltage, current, active power, reactive power, apparent power, power factor, and frequency
- Measurement of forward and reverse active/reactive energy
- Time-sharing and fixed-time energy metering
- Harmonic analysis (up to the 31st order for voltage and current)
- Real-time waveform display and power quality analysis
- Event logging and demand recording
The device includes multiple I/O interfaces for field-level monitoring and control, and is equipped with an RS-485 communication port supporting integration with intelligent power distribution systems and energy management platforms. This meter offers a high performance-to-price ratio and can fully replace traditional power transmitters, energy meters, and associated measurement instruments. It is widely used in:
- Energy management systems
- Power monitoring systems
- Industrial enterprises
- Public utilities
- Smart buildings
- Intelligent switchgear systems
معايير الامتثال
- GB/T 22264.1-2008 - أدوات القياس الكهربائية المثبتة على شاشات رقمية - الجزء 1: التعاريف والمتطلبات العامة
- GB/T 22264.7-2008 - الجزء 7: المتطلبات الخاصة للعدادات متعددة الوظائف
- GB/T 22264.8-2008 - الجزء 8: طرق الاختبار الموصى بها
- GB/T 17215.322.322-2008 - عدادات الطاقة النشطة الثابتة بالتيار المتردد (الفئة 0.2S و0.5S)
- GB/T 17215.323-2008 - عدادات الطاقة التفاعلية الساكنة بالتيار المتردد (الفئة 2 و3)
- عدادات الطاقة متعددة الوظائف
- كاشف كهربائي للحماية من الحرائق
- كود تصميم الحماية من الحرائق للمباني المدنية الشاهقة
- كود تصميم توزيع الجهد المنخفض
- كود تصميم المباني السكنية
- تركيب أجهزة التيار المتبقي وتشغيلها (RCDs)
- كود تصميم الحماية من حرائق المباني
المواصفات الفنية
دقة القياس
- Voltage: Class 0.5
- Current: Class 0.5
- Active Power: Class 0.5
- Reactive Power: Class 0.5
- Frequency: ±0.02 Hz
- Active Energy: Class 0.5S or 0.2S
- Reactive Energy: Class 1 or 2
- Power Factor: ±0.5%
Auxiliary Power Supply
- Operating Voltage: AC/DC 80V ~ 270V
- Power Consumption: <4VA
Communication & I/O
- RS-485 Interface: 1 channel, Modbus-RTU protocol
- Baud rate: 1200 ~ 9600bps (default: 2400bps)
- Digital Inputs: 4 dry contact inputs
- Relay Outputs: 3 outputs (AC 250V/5A, DC 30V/5A)
- Analog Outputs: 3 channels (0/4
20mA or 05/10V) - Energy Pulse Outputs: 2 channels
- Pulse constant: 8000 imp/kWh (or kvarh)
الظروف البيئية
- Operating Temperature: -10℃ ~ +55℃
- Storage Temperature: -25℃ ~ +70℃
- Relative Humidity: ≤93% (non-condensing, no corrosive gases)
- Altitude: ≤2500m
Signal Input
- Wiring Mode: Three-phase four-wire / three-phase three-wire
- Rated Voltage: AC 57.7V, 100V, 220V, 380V
- Rated Current: AC 1A or 5A
- Overload Capacity:
- Voltage: 1.2x (continuous), 2x/1s (instantaneous)
- Current: 1.2x (continuous), 10x/5s (instantaneous)
- Power Consumption:
- Voltage: <1VA per phase
- Current: <0.4VA per phase
- Input Impedance:
- Voltage: >300kΩ
- Current: <20mΩ
- Frequency Range: 45 ~ 65Hz
Electrical Safety
- Insulation Resistance: >100MΩ
- Dielectric Strength: AC 2kV (1 min)
Electromagnetic Compatibility (EMC)
- Electrostatic Discharge (ESD): IEC Level 4
- Electrical Fast Transients (EFT): IEC Level 4
- Surge Immunity: IEC Level 4
حجم المنتج
المواصفات والأبعاد

| Measurements | التحليل التوافقي | Communication Interfaces | Alarm Outputs | Reverse power |
| Three-phase voltage and current | Supports Total Harmonic Distortion (THD) measurement | Modbus RTU / Modbus TCP | Overvoltage / undervoltage | Harmonic limit exceedance |
| Active, reactive, and apparent power | Multi-order harmonic measurements | RS485 | Overcurrent / undercurrent | Other user-definable alarm conditions |
| Power factor | Ethernet | |||
| التردد | RS232 (optional, per configuration) | |||
| Import/export energy (forward and reverse energy) |
| Display | Recording Functions | Accuracy Class | Mounting | Power Supply | Standards Compliance |
| LCD or color backlit screen | Event logging (faults, alarms, operations) | Class 0.2S or 0.5S (selectable/model-dependent) | DIN-rail mounting | AC or DC power input (specify voltage range) | IEC 62053 series (accuracy and metering standards) |
| Configurable display pages for parameters, trends, and alarms | Data logging (interval or triggered) | Panel mounting | IEC 61000 series (EMC, immunity/emission) | ||
| Energy consumption trend curves or profiles | Other relevant industry standards as required | ||||
| Other user-definable alarm conditions |



