Multifunctional Electric Power Parameter Meter
The ISPM20 series multifunctional power parameter meter provides cost-effective measurement solutions for public/commercial buildings, industry, energy and infrastructure, power grids, and utility customers.
The ISPM20 series is equipped with a standard RS485 communication interface and features multiple IO expansion functions, which can be flexibly selected as needed. It has been widely used in distribution cabinets, CADA systems and energy management systems, substation automation, distribution network automation, community power monitoring, industrial automation, and smart buildings.
With 0.2 level accuracy for current and voltage and 0.5 level accuracy for power, it meets the requirements for high-precision monitoring, internal sub-metering, and energy management applications. It is easy to install, simple to wire, requires minimal engineering effort, supports on-site programming settings, and can complete networking with different PLCs and industrial control computer communication software.
ISPM20 has two panel cutout sizes:
68*68mm, very suitable for drawer cabinet installation, with overall dimensions of 72*72mm.
91*91mm, very suitable for standard panel cutout installation, with overall dimensions of 96*96mm.
- Commodity name： Multifunctional Electric Power Parameter Meter
- Commodity ID： ISPM20
- Product Description
- Summary
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Product Features
Technical Parameters
Indicators
Accuracy Class
U, I, F: Class 0.2; P, Q: Class 0.5; Active Energy Class 0.5; Reactive Energy Class 2
Display Type
LED
Power Supply
Operating Range
AC, DC 85V ~ 265V
Power Consumption
≤0.5VA
Input Measurement
Network
Three-phase three-wire, three-phase four-wire
Rated Value
Voltage: AC 0~660V; Current: AC 1A~5A
Overload
Continuous: 2 times, 2500VAC/1 second
Power Consumption
<0.2VA
Frequency
45~65Hz
Harmonics
Voltage and current 63rd harmonics; THD, THFF, CF, KF and other power quality analyses
Demand Analysis
Real-time, maximum, and forecast values of current/power demand
Time-of-Use Electricity
12 periods, 4 rates
Extended Functions
Communication Interface
Standard with one RS485 port, optional MODBUS-RTU or DL/T645
Switch Input (Optional)
2 switch inputs
Output (Optional)
2 relay outputs or 2 pulse outputs or 1 4-20mA analog output
Operating Environment
Operating temperature: -20℃~70℃; Storage temperature: -40℃~85℃; Relative humidity ≤95%
Function Summary
■ Measurement: All electrical parameters of three-phase power network including U, I, P, Q, S, PF, F, etc. Active (Class 0.5) and reactive energy metering.
■ Voltage and current channels 63rd order harmonic analysis. THD, THFF, CF, KF and other power quality analyses.
■ Real-time, maximum, and forecast values of current/power demand. 12 periods, 4 rates time-of-use electricity.
■ Digital communication: RS-485 communication interface, MODBUS-RTU or DL/T645 protocol;
Can be configured with 2 RS485 or Ethernet interfaces.
■ Output module: 2 relay outputs or 2 pulse outputs or 1 4-20mA analog output.
■ Switch input module (optional): ISPM20 supports 2DI; ISPM21 standard with 2DI, supports up to 6DI.
■ Host size: Dimensions 72x72x74mm, cutout size: 68×68mm;
Dimensions 96x96x80mm, cutout size: 91×91mm.
■ Fast pulse group immunity: IEC61000-4-4, Level 4; Surge immunity: IEC61000-4-5, Level 3; Electrostatic immunity:
IEC61000-4-2, Level 4.
■ Features a large color display, with an effective display area breakthrough of 80mmX80mm, occupying 70% of the front panel area.
■ The front panel adopts a pure flat mirror frameless design, completely overturning the traditional appearance of industrial instruments, showing a high-end style.
■ Eliminates traditional mechanical buttons, using more advanced capacitive touch buttons, permanently avoiding button aging failure and deterioration of tactile feel,
making the operation of the instrument a high-tech enjoyment.
■ Rich display modes (zoning, load, four-quadrant energy).
■ Higher accuracy and resolution (1:6000 dynamic range) — precise measurement of small loads.Installation and Wiring
1. ISPM20 (68*68 cutout)
2. ISPM20 (91*91 cutout)
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The ISPM20 series multifunctional power parameter meter provides cost-effective measurement solutions for public/commercial buildings, industry, energy and infrastructure, power grids, and utility customers.
The ISPM20 series is equipped with a standard RS485 communication interface and features multiple IO expansion functions, which can be flexibly selected as needed. It has been widely used in distribution cabinets, CADA systems and energy management systems, substation automation, distribution network automation, community power monitoring, industrial automation, and smart buildings.
With 0.2 level accuracy for current and voltage and 0.5 level accuracy for power, it meets the requirements for high-precision monitoring, internal sub-metering, and energy management applications. It is easy to install, simple to wire, requires minimal engineering effort, supports on-site programming settings, and can complete networking with different PLCs and industrial control computer communication software.
ISPM20 has two panel cutout sizes:
68*68mm, very suitable for drawer cabinet installation, with overall dimensions of 72*72mm.
91*91mm, very suitable for standard panel cutout installation, with overall dimensions of 96*96mm.
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