Centralized On-line Monitoring System - ME-98S

The ME-98S Centralized Online Monitoring System is a modular and scalable data acquisition platform designed for long-term structural health monitoring. It supports flexible combinations of analog and digital acquisition boards to measure strain, vibration, displacement, temperature, humidity, voltage, current, and other signals. Using Ethernet communication and NTP time synchronization, the system can be expanded to thousands of channels and integrated with third-party monitoring platforms. Designed for reliable operation in demanding environments, the ME-98S is widely used for bridges, dams, high-rise buildings, wind turbines, tunnels, and industrial equipment monitoring.

Inquire

Supports long-term continuous monitoring of large structures, machinery, and equipment with configurable acquisition boards for multiple measurement types.
Uses Ethernet communication with NTP synchronization for real-time multi-channel data recording at up to 200 Hz/channel.
Includes isolation and grounding design for strong resistance to electrical noise in field environments.
Designed to ensure reliable operation and accurate measurement data for structural safety monitoring.
Suitable for laboratories, control rooms, and standard equipment rack installations.
Features built-in self-diagnostics and sensor self-check functions for monitoring sensor status during operation.
Automatically restores operation after power or network interruptions with watchdog protection and real-time network status monitoring.
Supports smart wire technology to simplify cabling, installation, and maintenance.
Includes strain bridge self-check functionality to detect wiring or bridge circuit faults.
Supports 4G mobile communication for remote monitoring in locations without wired network access.

  
    Master Chassis
    Semi 19" 3U chassis / 19" 3U chassis
  
    Communication
    4G, Ethernet
  
    Synchronization Mode
    NTP
  
    Card slot No.
    8 / 16
  
    Card Type
    strain, thermal resistance, voltage, current, vibration string, bus, IEPE, etc.
  
    Sampling rate
    1, 2, 5, 10, 20, 50, 100, 200Hz
  
    Size(mm)
    237×133×337mm (Semi 19 inch 3U case)
482×133×337mm (19 inch 3U case)
  
    Weight
    Typ. 4.5kg (Semi 19 inch 3U case)
Typ. 7.5kg (19 inch 3U case)
  
    Protection
    IP50
  
    Power Supply
    AC220/50Hz / DC10~30V
  
    Strain Measurement Card
    
    Channel No.
    8 channels/card, 2 channels/card (By FOC)
  
    A/D Converter
    24-bits
  
    Sampling Rate (continuous)
    1, 2, 5, 10, 20, 50, 100, 200Hz
  
    Frequency Response
    DC~30Hz (flatness 0.1dB)
  
    Input mode
    DIF_DC
  
    Applicable strain gauge resistance value
  
    three-wire system 1/4 bridge resistance range
    120Ω or 350Ω (By FOC)
  
    half bridge, full bridge resistance range
    60Ω ~ 20000Ω arbitrary setting
  
    Strain gauge sensitivity coefficient
    1.0 ~ 3.0 automatic correction
  
    Bridge power supply:
  
    Output voltage range (DC)
    2V, 5V (By FOC)
  
    Accuracy
    <0.1%
  
    Stability
    <0.05% / h
  
    Max. output current
    20mA/CH
  
    Input Strain Range
    ±10000με, ±50000με
  
    Input Voltage Range
    ±10mV, ±50mV (By FOC)
  
    Indication Error
    <0.5% ±3με
  
    Zero drift
    <3με/2h
  
    Noise
    <3με(P-p)
  
    Long-Cable resistance correction range
    0.0 ~ 100Ω
  
    Temp. Measurement(RTC) Card
  
    Channel No.
    8 channels/card
  
    Sampling Rate(continuous)
    1, 2, 5, 10, 20, 50, 100, 200Hz
  
    Indication Error
    <±0.2%F.S
  
    Type
    T、E、K、S、J、B、R、N, etc
  
    Temp. Measurement(RTD) Card
  
    Channel No.
    8 channels/card
  
    A/D Converter
    24-bit
  
    Sampling Rate(continuous)
    1, 2, 5, 10, 20, 50, 100, 200Hz
  
    Frequency Response
    DC~30Hz (flatness 0.1dB)
  
    Platinum Resistance Type
    all kinds of thermal resistance temperature sensor PT10, PT100, PT1000, four wire system types are supported
  
    Temperature Range
    -200℃~850℃
  
    Accuracy
    0.5%±0.5℃
  
    Power Supply(constant current)
    1mA
  
    Voltage Measurement Card
  
    Channel No.
    8 channels/card or 2 channels/card
  
    Excitation voltage
    5V, 12V, 24V, Max.current: 60mA,(By FOC)
  
    Load capacity
    DC24V power supply: working current is not less than 50mA, starting current is not less than 60mA
  
    Measuring Range
    500mV, 5000mV,(By FOC)
  
    Error
    0.5%FS
  
    Magnetoelectric (Vibration) Measurement Card
  
    Channel No.
    8 channels/card, 2 channels/card (By FOC)
  
    Range
    ±5000mV
  
    Sampling Rate (continuous)
    1, 2, 5, 10, 20, 50, 100, 200Hz
  
    Input Mode
    SIN-DC
  
    In Situ Calibration Sensor Type
    DT2D001A
  
    Excitation Voltage
    1.5V (0.33mA)
  
    Excitation Frequency
    1Hz, 10Hz, Switch
  
    Current Measurement Card
  
    Channel No.
    8 channels/card
  
    Sampling Rate (continuous)
    1, 2, 5, 10, 20, 50, 100, 200Hz
  
    Connection Mode
    Three-wire or two-wire
  
    Input Voltage Range
    12VDC、24VDC, Max.current:60mA, (By FOC)
  
    Measuring Range
    4~20mA, (By FOC)
  
    Error
    0.5%FS
  
    Vibrating Wire Measurement Card
  
    Channel No.
    8 channels/card
  
    Frequency Sweep Range
    (400~1.2kHz) / (800~3.3kHz) / (2.5~5kHz) (By FOC)
  
    Input voltage
    5V
  
    Measurement parameters
    
      Frequency measurement (frequency pulse), 
      Temperature measurement (resistance)
    
    Measurement range
    
      Frequency: 400~5000Hz;

      Temperature: -20~+80°C
    
    Accuracy
    
      Frequency: 0.1Hz

      Temperature: 0.5°C
    
    Resolution
    
      Frequency: 0.02Hz

      Temperature: 0.5°C
    
    Channel Scanning Time
    <2s
  
    RS485 Bus Card
  
    Channel No.
    1 channel/card
  
    Power Supply
    DC12V (Max. current: 100mA)
  
    Communication Interface
    Standard RS485 bus communication interface
  
    Protocol
    The sensor resolution protocol is required.
  
    RS232 Bus Card
  
    Channel No.
    1 channel/card
  
    Power Supply
    DC12V (Max. current: 100mA)
  
    Communication Interface
    Standard RS232 bus communication interface
  
    Protocol
    The sensor resolution protocol is required.
  
    IEPE Measurement Card
  
    Channel No.
    8 channels/card, 2 channels/card (By FOC)
  
    A/D Converter
    24-bits
  
    Sampling Rate
    1, 2, 5, 10, 20, 50, 100, 200Hz
  
    Frequency Response Range
    DC~35Hz (flatness 0.1dB)
  
    Input mode
    IEPE
  
    Range
    ±500mV, ±5000mV (Custom)
  
    IEPE Power Supply
    4mA/24V
  
    Error
    0.5%FS
  
    Environmental Conditions
  
    Operating Temperature
    -10°C to 50°C
  
    Operating Humidity
    20 ~ 90%RH@40°C
  
    Storage Temperature
    -40°C to 70°C
  
    Storage Humidity
    90% RH 24h@50°C
  
    Vibration
    Frequency cycle range: 5Hz ~ 55Hz ~ 5Hz
    
Drive amplitude (peak): 0.19mm
    
Sweep frequency: ≤1Oct./min
    
Duration of resonant: 10min
    
Vibration direction: x, y, z

Figure 1: Connection Diagram of Distributed On-line Monitoring System

Figure 2: Extended Connection Diagram of Distributed On-line Monitoring System

Figure 3: 4G Communication

PHM Monitoring Software

1. System Architecture

B/S Architecture: Based on browser/server architecture, enabling equipment management over local LAN and internet networks.

2. Core Functions

Remote Monitoring: Real-time monitoring of field equipment operating status from remote locations.
Real-Time Monitoring & Analysis: Supports continuous real-time data acquisition and analysis.
User Management: Multi-level user permission management for secure system access.
Data Storage: Reliable storage of historical and real-time monitoring data.
Alarm Setting: Configurable alarm thresholds for conditions with notification capabilities.
Power-Off Self-Recovery: Automatic system recovery after power interruption, ensuring operational continuity.
Fault Setting: Configurable fault condition definitions and corresponding response mechanisms.

3. Built-In Analysis Algorithms

Correlation Analysis: Analyzes relationships between different monitoring parameters.
Statistical Analysis: Provides statistical processing and evaluation of monitoring data.
Strain Rosette Calculation: Calculates principal stress and strain direction using strain rosette data.
Trend Analysis: Tracks long-term trends of monitored parameters for predictive insights.
Spectrum Analysis: Performs frequency domain analysis for vibration and dynamic signal processing.

Accessories
Accessories
ME-98S Semi 19" 3U Chassis: 8 Card Slots; Gigabit Ethernet communication Interface; 220VAC/12~30VDC power supply; Support NTP synchronization; Sampling rate 200Hz;
ME-98S 19" 3U Chassis: 16 Card Slots; Gigabit Ethernet communication Interface; 220VAC/12~30VDC power supply; Support NTP synchronization; Sampling rate 200Hz;
Strain Measurement Card(Option): Three types: 1/4 bridge (120Ω or 350Ω), half bridge, and full bridge. Bridge resistances by FOC; Bridge supply voltage: 2V or 5V. Others by FOC; Range: ±50000 με. Others by FOC;
Temp. Measurement(RTC) Card(Option): 8 channels / cards; Type: T、E、K、S、J、B、R、N, etc;
Temp. Measurement(RTD) Card(Option): 8 channels / cards; Type: PT10, PT100, PT1000 (any one can be chosen); Four-wire system type;
Voltage Measurement Card(Option): 8 channels/card or 2 channels/card Excitation voltage：5V, 12V, 24V (ensure one of them By FOC) Measuring Range: 500mV, 5000mV (ensure one of them By FOC)
Vibrating Wire Measurement Card(Option): 8 channels/card; Input voltage: 5V; Sweep-frequency sensor can be used Measurement range: Frequency measurement (frequency pulses), Temperature measurement (resistance);
Magnetoelectric (Vibration) Measurement Card(Option): 8 channels/card, 2 channels/card (By FOC); Range: ±5000mV; Sampling Rate (continuous):1, 2, 5, 10, 20, 50, 100
Current Measurement Card(Option): 8 channels/card; Connection Mode:Three-wire or two-wire; Measuring Range: 4~20mA, (By FOC)
IEPE Measurement Card(Option): Input method: IEPE; IEPE power supply: 4mA/24V; Voltage range: 500mV or 5000mV, choose one of them by FOC; (Select the gain level when placing the order)
RS232 Bus Card(Option): 1 channel/card; Standard RS232 protocol; The user needs to provide the protocol parsing format; Special requirements by FOC
RS485 Bus Card(Option): 1 channel/card; Standard RS485 protocol; The user needs to provide the protocol parsing format; Special requirements by FOC
C4 Cable: 4 channel. Default 5m bare cable or 1.5 m cable with bridge box.
Power Cable: Three-phase power cable
Gigabit Network Cable: 5m
BNC Patch Cord: One a DB-26 connector and other is a BNC female connector 0.1m
BNC Cable (Option): Signal connection cable, two BNC connectors
IEPE Signal Input Cable(Option): Signal connection cable, one BNC connector, one L5 connector
L5 Cable(Option): low noise cable
Gigabit Switch(Option): Used for network expansion of multiple instruments
Copper Core Nylon Cable Cap (with Copper Core): 3mm
Packing Case: 3U
Fuse: 2A
Software USB drive