NPM Series

Intelligent Power Meter

（LCD type in Chinese, LCD type, Digital type）

Intelligent Efficient Safe Comprehensive

PRODUCT OVERVIEW

NPM series intelligent power meter can realize the measurement of all electric parameters of electric load. It features modular design, high protection level, multiple display modes, standard RS485 communication interface and support for Modbus-RTU and DL/T645 communication protocols, which can be connected to all kinds of power monitoring systems and energy management systems to help customers realize data sharing and comprehensive management. It’s widely used in industrial, commercial, residential and infrastructure fields to realize intelligent control and management.

FLEXIBLE CONFIGURATION,
STREAMLINED INTERFACE

  • A variety of sizes can be adapted to different scenarios. It is characterized by multiple functional options, customization services and strong compatibility with external devices, and convenient and simple wiring.
  • The operation interface can work stably in various environments, provide high-resolution and clear digital display, greatly shortening the response time.

HIGH PROCESSING PERFORMANCE,
FULL ELECTRICAL MEASUREMENT

It can quickly detect anomalies and faults in the system, such as overloads and voltage fluctuations, and timely send alarm signals to reduce the potential risk of system failure.
It is capable of displaying accurate readings of a wide range of electrical parameters, including voltage, current, power and power factor, which helps to have a deeper understanding of the operating conditions of the power system.

MULTIPLE COMMUNICATION PROTOCOLS,
POWERFUL DATA ANALYSIS

Supports multiple communication protocols to connect with the upper-level equipment, and the operation and maintenance personnel can remotely monitor and control the status of the power system through the back-end system, so as to quickly respond to and deal with the problems.

Equipped with data recording function, which can store historical data and is convenient for long-term data analysis and trend prediction.

Technical Parameters

NPM96ZH Series Intelligent Power Meter Technical Parameters Table

Function Parameter
Power supply Power supply range AC/DC 85~265V
Power consumption ≤5VA
Measurement display Frequency 40~65Hz， accuracy 0.05Hz
Power Active, reactive, apparent power， accuracy grade 0.5
Electricity Four-quadrant metering, active accuracy grade C, reactive power accuracy grade 1.0
Display LCD display in Chinese, programmable settings and the information can be switched or displayed repeatedly
Input voltage Network Single-phase, three-phase four-wire, three-phase three-wire
Rated value AC100V、400V、690V
Overload Long-term overload 1.2 times; short-term overload 2 times (60s)
Power consumption ＜0.1VA (per phase)
Impedance >1.72MΩ
accuracy True RMS measurement, accuracy grade 0.2
Input current Rated value AC1A、5A
Overload Long-term overload 1.2 times; instantaneous load 10 times (5s)
Power consumption ＜0.1VA (per phase)
Impedance ＜20mΩ
accuracy True RMS measurement, accuracy grade 0.2
Extended functions Communication interface RS485 (MODBUS-RTÚ protocol or DL/T645-2007 protocol)
Switch quantity interface DI passive dry contact input, DO output
Pulse output 2-channel power pulse output
Transmission output DC 4~20mA
Environment Operating environment -25~60℃，5~95% no condensing
Storage environment -40~85℃
Safety Withstand voltage Between input, output and power supply all greater than 2kV
Insulation Input, output, power supply casing ＞100MΩ
Overall dimensions Frame 96*96mm
Hole size 91*91mm
Real-time measurement parameters Phase and line voltage Each phase voltage, each line voltage
Current Each phase current, neutral current
Power Each phase active, reactive and apparent power; three-phase total active, reactive and apparent power
Power factor Each phase power factor, three-phase total power factor
Load property Resistive, capacitive, inductive
Frequency System frequency
Demand Demand Four-quadrant active, reactive and apparent power
Real-time kilowatt-hour Active and reactivekilowatt-hour Bi-directional, absolute and net values
Maximum value statistics Maximum and minimum value statistics (with time scale) Current, voltage, power, demand, power factor, frequency
Time-of-use kilowatt-hour(optional) Time-of-use active and reactive kilowatt-hour Three-phase bi-directional active and reactive kilovar-hour
SOE DI displacement sequence recording Resolution of 1ms, record 64 items
Overlimit alarm Alarm items Various real-time measurement parameters
Power quality (optional) Current, voltage harmonic content,distortion rate, asymmetry Intuitive graphic coordinates inspection, 2nd-51st harmonic histogram display, 2-63 times communication reading
Time (optional) Real-time clock Year, month, day, hour, minute, second

NPM96/72(Y/S)Series Intelligent Power Meter Technical Parameters Table

Function Parameter
Power supply Power supply range AC/DC 85~265V
Power consumption ≤5VA
Measurement display Frequency 40~65Hz， accuracy 0.05Hz
Power Active, reactive, apparent power， accuracy grade 0.5
Electricity Four-quadrant metering, active accuracy grade C, reactive power accuracy grade 1.0
Display LCD display in Chinese, programmable settings and the information can be switched or displayed repeatedly.
Input voltage Network Single-phase, three-phase four-wire, three-phase three-wire
Rated value AC100V、400V、690V
Overload Long-term overload 1.2 times; short-term overload 2 times (60s)
Power consumption ＜0.1VA (per phase)
Impedance >1.72MΩ
accuracy True RMS measurement, accuracy grade 0.2
Input current Rated value AC1A、5A
Overload Long-term overload 1.2 times; instantaneous load 10 times (5s)
Power consumption ＜0.1VA (per phase)
Impedance ＜20mΩ
accuracy True RMS measurement, accuracy grade 0.2
Extended functions Communication interface RS485 (MODBUS-RTÚ protocol or DL/T645-2007 protocol)
Switch quantity interface DI passive dry contact input, DO output
Pulse output 2-channel power pulse output
Transmission output DC 4~20mA
Environment Operating environment -25~60℃，5~95% no condensing
Storage environment -40~85℃
Safety Withstand voltage Between input, output and power supply all greater than 2kV
Insulation Input, output, power supply casing ＞100MΩ
Overall dimensions Frame 96*96mm; 72*72mm
Hole size 91*91mm; 67*67mm
Real-time measurement parameters Phase and line voltage Each phase voltage, each line voltage
Current Each phase current, neutral current
Power Each phase active, reactive and apparent power; three-phase total active, reactive and apparent power
Power factor Each phase power factor, three-phase total power factor
Load property Resistive, capacitive, inductive
Frequency System frequency
Demand Demand Four-quadrant active, reactive and apparent power
Real-time kilowatt-hour Active and reactivekilowatt-hour Bi-directional, absolute and net values
Maximum value statistics Maximum and minimum value statistics (with time scale) Current, voltage, power, demand, power factor, frequency
Time-of-use kilowatt-hour(optional) Time-of-use active and reactive kilowatt-hour Three-phase bi-directional active and reactive kilovar-hour
SOE DI displacement sequence recording Resolution of 1ms, record 64 items
Overlimit alarm Alarm items Various real-time measurement parameters
Power quality (optional) Current, voltage harmonic content,distortion rate, asymmetry Intuitive graphic coordinates inspection, 2nd-51st harmonic histogram display, 2-63 times communication reading
Time (optional) Real-time clock Year, month, day, hour, minute, second

Selection table

NPM96 Series Intelligent Power Meter

NPM96 ZH Q 3 DI R RJ
Product code Display mode Function code Number of phases Additional features Standard functions Additional features
NPM96:
96-model Intelligent Power Meter		 ZH:Chinese LCD type
Y:LCD type S:Digital type		 A:Current
B: Voltage
Q: Multi-function
S:Multi-function + Harmonics
T:Multi-function + Time-of-use energy
W:Multi-function + Harmonics + Time-of-use energy		 3: Three-phase
1: Single-phase		 DI: Switch input input
DO:Relay output
M:Analog output
P:Pulse output 		R:RS485 communication RJ:Ethernet function
6T: 6-channel temperature measurement function
R:RS485 communication

NNote: • Multi-function includes current, voltage, active power, frequency, reactive power, apparent power, power factor, positive active energy, positive reactive energy.
• Model ZH (limited to 96 size): optional functions include 8DI, 4DO, 2M, 2R, 2P. Due to the number of ports, the maximum function is 8DI/2DO/2P/2M/2R or 8DI/4DO/2M/2R; C touch screen function.
• Model Y: The maximum function is 8DI/2DO/2P/2M/2R/RJ or 8DI/4DO/2M/2R/RJ. When 6T (6-channel temperature measurement) is selected, the maximum function is 4DI/2DO/2P/1R/6T or 4DI/4DO/1R/6T or 4DI/2DO/2M/R/6T.
• When function code A or B is selected, the maximum additional function is 4DI/2DO/1M/R.
• The number of DI can only be selected as 4DI or 8DI, and the number of DO can only be selected as 2DO or 4DO.

NPM72 Series Intelligent Power Meter

NPM72 Y Q 3 DI R
Product code Display mode Function code Number of phases Additional features FunctionStandard configuration
NPM72:
72-model Intelligent Power Meter		 ZH:LCD type
S:Digital type		 A:Current
B: Voltage
Q: Multi-function
S:Multi-function + Harmonics
T:Multi-function + Time-of-use energy
W:Multi-function + Harmonics + Time-of-use energy		 3: Three-phase
1: Single-phase		 DI: Switch input input
DO:Relay output
M:Analog output
P:Pulse output 		R:RS485 communication

Note: • Multi-function includes current, voltage, active power, frequency, reactive power, apparent power, power factor, positive active energy, positive reactive energy.
• 72 models; the maximum additional function is 4DI/2DO/1M/R/2P.
• When function code A or B is selected, the maximum additional function is 4DI/2DO/1M/R.
•The number of DI can only be selected as 4DI or 8DI, and the number of DO can only be selected as 2DO or 4DO.

Technical Parameters


  • Power supply：Power supply range：AC/DC 85~265V；Power consumption：≤5VA

    Measurement display：Frequency：40~65Hz， accuracy 0.05Hz；  Power：Active, reactive, apparent power， accuracy grade 0.5； Electricity：Four-quadrant metering, active accuracy grade C, reactive power accuracy grade 1.0； Display：LCD display in Chinese, programmable settings and the information can be switched or displayed repeatedly；

    Input voltage：Network：Single-phase, three-phase four-wire, three-phase three-wire；Rated value：AC100V、400V、690V；Overload：Long-term overload 1.2 times; short-term overload 2 times (60s)；Power consumption：＜0.1VA (per phase)；Impedance：＞1.72MΩ； accuracy ：True RMS measurement, accuracy grade 0.2；

    Input current：Rated value：AC1A、5A；Overload ：Long-term overload 1.2 times; instantaneous load 10 times (5s)；Power consumption ：＜0.1VA (per phase)；Impedance：＜20mΩ；； accuracy ：True RMS measurement, accuracy grade 0.2；

    Extended functions：Communication interface：RS485 (MODBUS-RTÚ protocol or DL/T645-2007 protocol)； Switch quantity interface ：DI passive dry contact input, DO output；Pulse output： 2-channel power pulse output；Transmission output ： DC 4~20mA；

    Environment：Operating environment ：-25~60℃，5~95% no condensing；Storage environment：-40~85℃；

    Safety：Withstand voltage：Between input, output and power supply all greater than 2kV；Insulation ：Input, output, power supply casing >100MΩ；

    Overall dimensions：Frame：96*96mm；Hole size：91*91mm；

    Real-time measurement parameters：Phase and line voltage：Each phase voltage, each line voltage；Current：Each phase current, neutral current；Power：Each phase active, reactive and apparent power; three-phase total active, reactive and apparent power； Power factor：Each phase power factor, three-phase total power factor；Load property：Resistive, capacitive, inductive；Frequency：System frequency；

    Demand：Demand：Four-quadrant active, reactive and apparent power；

    Real-time kilowatt-hour：Active and reactivekilowatt-hour：Bi-directional, absolute and net values；

    Maximum value statistics：Maximum and minimum value statistics (with time scale) ，Current, voltage, power, demand, power factor, frequency；

    Time-of-use kilowatt-hour(optional) ：Time-of-use active and reactive kilowatt-hour，Three-phase bi-directional active and reactive kilovar-hour；

    SOE ：DI displacement sequence recording，Resolution of 1ms, record 64 items；

    Overlimit alarm ：Alarm items，Various real-time measurement parameters；

    Power quality (optional) ：Current, voltage harmonic content,distortion rate, asymmetry；Intuitive graphic coordinates inspection, 2nd-51st harmonic histogram display, 2-63 times communication reading；

    Time (optional) ：Real-time clock：Year, month, day, hour, minute, second；

  • Power supply：Power supply range：AC/DC 85~265V；Power consumption：≤5VA

    Measurement display：Frequency：40~65Hz， accuracy 0.05Hz；  Power：Active, reactive, apparent power， accuracy grade 0.5； Electricity：Four-quadrant metering, active accuracy grade C, reactive power accuracy grade 1.0； Display：LCD display in Chinese, programmable settings and the information can be switched or displayed repeatedly.；

    Input voltage：Network：Single-phase, three-phase four-wire, three-phase three-wire；Rated value：AC100V、400V、690V；Overload：Long-term overload 1.2 times; short-term overload 2 times (60s)；Power consumption：＜0.1VA (per phase)；Impedance：＞1.72MΩ； accuracy ：True RMS measurement, accuracy grade 0.2；

    Input current：Rated value：AC1A、5A；Overload ：Long-term overload 1.2 times; instantaneous load 10 times (5s)；Power consumption ：＜0.1VA (per phase)；Impedance：＜20mΩ；； accuracy ：True RMS measurement, accuracy grade 0.2；

    Extended functions：Communication interface：RS485 (MODBUS-RTÚ protocol or DL/T645-2007 protocol)； Switch quantity interface ：DI passive dry contact input, DO output；Pulse output： 2-channel power pulse output；Transmission output ： DC 4~20mA；

    Environment：Operating environment ：-25~60℃，5~95% no condensing；Storage environment：-40~85℃；

    Safety：Withstand voltage：Between input, output and power supply all greater than 2kV；Insulation ：Input, output, power supply casing >100MΩ；

    Overall dimensions：Frame：96*96mm; 72*72mm；Hole size：91*91mm; 67*67mm；

    Real-time measurement parameters：
    Phase and line voltage：Each phase voltage, each line voltage；
    Current：Each phase current, neutral current；
    Power：Each phase active, reactive and apparent power; three-phase total active, reactive and apparent power；
     Power factor：Each phase power factor, three-phase total power factor；
    Load property：Resistive, capacitive, inductive；
    Frequency：System frequency；

    Demand：Demand：Four-quadrant active, reactive and apparent power；

    Real-time kilowatt-hour：Active and reactivekilowatt-hour：Bi-directional, absolute and net values；

    Maximum value statistics：Maximum and minimum value statistics (with time scale) ，Current, voltage, power, demand, power factor, frequency；

    Time-of-use kilowatt-hour(optional) ：Time-of-use active and reactive kilowatt-hour，Three-phase bi-directional active and reactive kilovar-hour；

    SOE ：DI displacement sequence recording，Resolution of 1ms, record 64 items；

    Overlimit alarm ：Alarm items，Various real-time measurement parameters；

    Power quality (optional) ：Current, voltage harmonic content,distortion rate, asymmetry；Intuitive graphic coordinates inspection, 2nd-51st harmonic histogram display, 2-63 times communication reading；

    Time (optional) ：Real-time clock：Year, month, day, hour, minute, second；

Selection table


  • Product code ：NPM96：96-model Intelligent Power Meter<100us

    Display mode：ZH:Chinese LCD type ；Y:LCD type S:Digital type

    Function code：A:Current；B: Voltage ；Q: Multi-function ；S:Multi-function + Harmonics；T:Multi-function + Time-of-use energy；W:Multi-function + Harmonics+分时Electricity；

    Number of phases：3: Three-phase ；1: Single-phase；

    Additional features：DI: Switch input input；DO:Relay output；M:Analog output；P:Pulse output；

    Standard functions：R:RS485 communication

    Additional features：RJ:Ethernet function ；6T: 6-channel temperature measurement function；R:RS485 communication；

Note: • Multi-function includes current, voltage, active power, frequency, reactive power, apparent power, power factor, positive active energy, positive reactive energy.
• Model ZH (limited to 96 size): optional functions include 8DI, 4DO, 2M, 2R, 2P. Due to the number of ports, the maximum function is 8DI/2DO/2P/2M/2R or 8DI/4DO/2M/2R; C touch screen function.
• Model Y: The maximum function is 8DI/2DO/2P/2M/2R/RJ or 8DI/4DO/2M/2R/RJ. When 6T (6-channel temperature measurement) is selected, the maximum function is 4DI/2DO/2P/1R/6T or 4DI/4DO/1R/6T or 4DI/2DO/2M/R/6T.
•When function code A or B is selected, the maximum additional function is 4DI/2DO/1M/R.
• The number of DI can only be selected as 4DI or 8DI, and the number of DO can only be selected as 2DO or 4DO.

  • Product code ：NPM72：72-model Intelligent Power Meter<100us

    Display mode：ZH:Chinese LCD type ； S:Digital type

    Function code：A:Current；B: Voltage ；Q: Multi-function ；S:Multi-function + Harmonics；T:Multi-function + Time-of-use energy；W:Multi-function + Harmonics + Time-of-use energy；

    Number of phases：3: Three-phase ；1: Single-phase；

    Additional features：DI: Switch input input；DO:Relay output；M:Analog output；P:Pulse output；

    Standard functions：R:RS485 communication

Note: • Multi-function includes current, voltage, active power, frequency, reactive power, apparent power, power factor, positive active energy, positive reactive energy.
• 72 models; the maximum additional function is 4DI/2DO/1M/R/2P.
• When function code A or B is selected, the maximum additional function is 4DI/2DO/1M/R.
•The number of DI can only be selected as 4DI or 8DI, and the number of DO can only be selected as 2DO or 4DO.

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