Jiangsu Aiste Electric specializes in the research and development, production, and sales of digital display meters. Its main products include power instruments, multifunctional network instruments, temperature and humidity controllers, power transmitters, temperature controllers, digital display voltage and current meters, and a full range of other products.

Three phase intelligent digital display instrument manufacturer, providing high-quality three-phase intelligent digital display instruments
Single phase voltmeter, three-phase voltmeter, single-phase ammeter, three-phase ammeter, multifunctional power instrument combination meter, power transmitter
Performance characteristics:
1. High precision measurement of three-phase voltage, three-phase current, active power, reactive power, apparent power, power factor, frequency and other electrical parameters
2. Measurement of active and reactive energy in the correct direction
3. Time of use electricity metering, timed meter reading of time of use electricity
4. Measure the total harmonic distortion (THD) of three-phase voltage and three-phase current, as well as the 2-31st odd harmonic components
5. Provide digital display and local data query
6. The menu is intuitive and the button operation is simple
7. Comparable programming settings for current and voltage changes
8. Provide multi loop leakage current monitoring
9. Provide multi loop control nodes that can be used for alarm, trip, and other control functions
10. Support fire linkage and remotely cut off faulty circuits
11 supports RS-485 communication and Modbus RTU protocol
12. Supports switch input Switching output, analog transmission output, power pulse output
13. Easy installation, simple wiring, and small engineering quantity
14. Wide range AC/DC universal power supply: AC/DC80V-270V
15. Can complete networking of various communication software in SCADA/PLC
16. Multiple appearance options to meet the requirements of different cabinet electrical circuits
Three phase intelligent digital display instrument manufacturer, providing high-quality three-phase intelligent digital display instruments

Technical parameters:
1. Measurement accuracy: Current, voltage, active power, reactive power, power factor of 0.5 level
Frequency: 0.02Hz;
Active electrical energy: 0.5S level or 0.2S level;
Reactive power: Level 1 or Level 2
2. Signal input: Wiring method: three-phase four wire three-phase three wire
Rated voltage: AC57.7V,AC100V,AC220V,AC380V
Rated current: AC1A,AC5A
Overload: Voltage: 1.2 times (continuous), 2 times/1 second (instantaneous)
Current: 1.2 times (continuous), 10 times/5 seconds (instantaneous)
Power consumption: Voltage:< 1VA/phase, current:< 0.4VA/phase
Impedance: Voltage:>300 kiloohms, Current:< 20mΩ
Frequency: 45-65Hz
3. Auxiliary power supply: Operating range AC/DC: 80V~270V
Power consumption:< 4VA
4. Function module: Communication interface, 1-channel RS-485 communication, Modbus RTU protocol
Baud rate: 1200-9600bps, default 2400bps
Switch input: supports 4-channel dry contact input
Switching output: supports 3 relay outputs, capacity: AC250/5A,DC30V/5A
Transmission output: Supports 1 channel of analog output: 0/4-20mA or 0-5/10V
5. Environment: Working temperature -10 ℃~55 ℃
Storage temperature -25 ℃~70 ℃
Relative humidity ≤ 93%, non corrosive gas environment
Altitude ≤ 2500m
6. Safety: Insulation resistance>100 megaohms
AC withstand voltage of 2KV
7. Electromagnetic compatibility performance: electrostatic discharge level 4

The company adheres to the business philosophy of "people-oriented, scientific innovation", introduces world-class equipment and technology, has an excellent team, and more than 20 years of professional experience. The products have the characteristics of small size, low loss, stable performance, and good durability, and are widely used in the fields of chemical, metallurgical, transportation, and power systems at home and abroad, and are highly praised by users. Welcome customers to inquire and order
: Shen