Tengcon NPM-502 Modbus Network Power Meter Products Introduction of Network Power Meter:
NPM502 Network power meter(hereinafter referred to as NPM502 instrument)which is specially developed General data acquisition module with a very high performance and stability for our users to Water supply automation control, the urban water treatment automatic control, thermal network pipeline automation control, the oil transfer station, hot water boiler, industrial steam boiler monitoring, water Wells, pumping station remote control.
NPM502 instrument can Indicate a field parameters to be Used as a separate module ,and also can extend as RS485 communication port.When more than 32 sets NPM502 instrument need to be used,one SCM communication management module need to be added, and collect the data ,then send to upper machine .SCM Communication management module support MODBUS and other standard protocols,and can be ordered by user's requirements.
Specification : |
Three Lines LED indicate accurately 3 phase voltage,3 phase current,active power,reactive power,frequency,
power factor,harmonic,3 phase electrical degrees,the inverter output and etc. |
2 RS485, MODBUS RTU protocol, Scalable |
FFT arithmetic, 1-15 harmonic calculation |
Surface Mounting Technology, No external bus, high Electromagnetic Compatible(EMC) |
Standard surface mounting,Outline Dimension:96 x 96 x 110(mm)hole size:92 x 92(mm) |
Parameters:
Analog input |
Measuring method: |
Three - meter method, Angle or star connection |
Capacity: |
one line |
Measuring object: |
Three phase voltage and line voltage, three phase current |
Input Voltage : |
0-400V(0-100V customizable) allow overload 50% for a long time,
Ensure 150% linear range |
Input Current: |
0-5A allow overload 120% for a long time,twice over current
at a moment,Ensure 200% linear range |
Sampling Speed: |
Sampling 32 points per cyclic wave |
Calculated Quantities: |
UA,UB,UC(Or UAB,UAC,UBC),IA,IB,IC,PA,PB,PC,QA,QB,QC,P,Q,F,
COS,3I0; |
Data refresh rate: |
40MS |
The measuring ac frequency: |
20~65HZ ,Ensure precision during 45~55HZ,Within the scope of
other frequency error maybe have difference |
Frequency measurement precision |
±0.01HZ± 1 digit |
Precision: |
0.5% FS ± 2 digit (not including harmonic,3I0,The negative sequence
current) |
Display Range |
Three phase voltage: < 24000V |
Three Phase Current: < 12000A |
Three-phase active power: < 300000KW (The absolute value) |
Three-phase reactive power: < 300000KVar (The absolute value) |
The power factor: The actual value |
Frequency: Actual frequency, accurate to 0.01 Hz, range:35 - 65 Hz |
The total active: < 900000KW (The absolute value) |
Total reactive: < 900000KVar (The absolute value) |
The electricity: < 5000000000 KWh (when reach ,starting from 0 to count again) |
Communication |
Capacity: 2 port |
Interface method: RS485, or RS232 (Optional) |
Protocol : MODBUS |
Operation Condition |
Mounting: |
Standard surface mounting |
Operation Temperature : |
-25ºC~55ºC |
Storage Temperature: |
-40ºC~70ºC |
Operating humidity: |
<85% RH(20±5ºC) |
Atmospheric: |
86~108Kpa |
Size: |
96×96×110mm |
Power Supply: |
AC 85~265V 50HZ~60HZ or DC 24V ± 30 % |
Power Consumption: |
< 5W |
Working environment: |
No explosions, no corrosive gas and conductive dust, no serious mold exists,
no violent vibration and impact sourceIf you need to work in such environment,
please take the corresponding protective measures |
Rely on the hardware, software and network technique, Tengcon Technology devoted to manufacture industrial automation core products and systems with more than 30%of employee are focus in Research & Development. Tengcon has deep and wide experience in various signal acquisition, especially on electric signal acquisition, and also, familiars with all main protocol like MODBUS, IEC8705, PROFIBUS DP, CAN, PROFINET etc., and knows the ropes of IEC61131 and technology of Programmable Logic Controller development as well as IEEE1588 and Clock Synchronization Technology in Ethernet, we are also robust on antiinterference and lightning protection technology to ensure the reliability of every product delivered to customer.
Tengcon Technology proposed a new advanced concept of Complete Distributed Network Control System, in that the control system is constructed via absolutely new theory. It can be applied to construct the SCADA (Supervisory Control and Data Acquisition), PLC (Programmable Logic Controller) and DCS (Distributed Control System). Typical product were developed based on these is T9 series which were launched in market already. More than 100 thousands of product have been delivered to customers and got widely and good customer acceptance in past years.
All these products are being used in various industries in 18 counties. They showed strong reliability in different systems and wide environment include High Speed Rail, oil and gas field, power monitor and control system, kind of automatic production line, Building Management System,city lighting control system, vehicle monitoring, agricultural farms etc. we are keeping to develop and provide first class of product to all the customer in worldwide.
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