Description
Overview of digital multifunction power meter
- The multifunction & multifunctional power meter supports programmable measurement, display, digital communication and pulse transmission output.
- It realizes power parameter measurement, energy metering, data display, collection and transmission.
- Widely used in substation automation, distribution automation, intelligent buildings and enterprise power measurement, management and assessment.
- It has 0.5-level measuring accuracy for voltage and current, with on-site LED display and remote RS-485 interface based on MODBUS-RTU protocol.
Multifunction power meter instructions
Sampling Range
- AC voltage meter: 0-400V. External voltage transformer is required for sampling voltage over 400V.
- AC current meter: 0-5A. External current transformer is required for sampling current over 5A.
Harmonic Range
- 2nd to 31st order harmonics of phase voltage and phase current, range: 0.01%~99.99%
- Total Harmonic Distortion(THD): 0.1%~999.9%
Sampling Rate
- Metering: 1.0s per time
- Harmonic: 0.5s per time
Metering Accuracy
- ±0.5%FS
Harmonic Accuracy
- ±0.05%FS
Display Mode
- LED display
Input Circuit Power:
- Current < 0.5VA
- Voltage < 0.2VA
Power Supply
- AC220V, AC/DC 89-265V; System Power Consumption < 0.3VA
Alarm Output
- Independent relay output, contact capacity: 250Vac/5A, 30Vdc/5A
Transmission Output
- Multifunction power meter 4-20mA output switchable between 4-20mA and 0-20mA, accuracy ±0.5%FS, load capacity <900Ω, common-source output.
Communication Interface
- RS485 serial communication, MODBUS-RTU protocol
Digital Input
- Passive dry contact, optocoupler isolation
Reliability
- Electrostatic discharge: Air discharge >8KV, Contact discharge >4KV
- Surge immunity: >4KV
- Electrical fast transient burst: >4KV
- Withstand voltage: >2KV
Interface Display (Partial)
Category
- 100a dc digital multifunction power meter
- 20a dc digital multifunction power meter
- lcd multifunctional power meter
- multifunction dc power meter
- multifunction meter cos power
- multifunction digital power meter
- dc multifunctional wireless digital bi-directional voltage current power meter
FAQ
Q：how to size up a current transformer for relay protection,Especially for transformer protection relays?
A:
Installation Steps
- Make holes on the cabinet panel according to meter size and fix the meter firmly.
- Correctly connect wires: link voltage lines, connect current signals via CT, and wire RS485 communication cables.
- Double-check all wiring before powering on.
Usage Method
- Operate panel keys to switch and view various electrical parameters. Set transformation ratio, communication address and alarm values via menu. Support remote data reading and parameter adjustment with complete meter instructions.
Selection Tips
- Choose single-phase, three-phase three-wire or three-phase four-wire type as needed.
- Select direct connection or transformer connection mode.
- Confirm required functions: power monitoring, harmonic detection, analog output, remote control etc.
- Match installation size and communication protocol for power distribution, factory and energy storage projects.
Q：Does it support different wiring systems, such as single-phase two-wire, three-phase three-wire (3P3W), and three-phase four-wire (3P4W)?
A:The company offers a wide range of products to meet various technical requirements.
Q：What is the operating voltage range of the instrument’s auxiliary power supply? Does it support DC power?
A:The product is powered by a power supply operating within the internationally standard AC/DC 85V–265V wide voltage range.
Company Statement
We are a reliable multifunction power meter factory in China, acting as professional China multifunction power meter manufacturer and trusted multifunction power meter supplier in China.
We supply high-quality multifunction power meter in China, and various China multifunction power meter for sale are available all year round. All our cheap price multifunction power meter and low price multifunction power meter are sold at genuine factory price multifunction power meter, with reasonable multifunction power meter price for global clients. Our complete multifunction power meter instructions are well-prepared for easy installation and operation.
As a leading manufacturer, we provide stable and durable multifunction power meter china products, which are widely exported worldwide and well received by overseas buyers.
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