Distributed On-line Monitoring System - ME-82S
The Dynatronic ME-82S Distributed Online Monitoring System is a modular long-term monitoring solution designed for bridges, rail transit, port machinery, and other engineering applications. Using distributed acquisition modules with digital bus communication, the system provides reliable long-distance transmission, strong anti-interference performance, and flexible scalability for large monitoring networks. It supports high-precision measurement of strain, stress, displacement, temperature, vibration, and other parameters, while maintaining stable operation in harsh environments with lightning, electromagnetic interference, and temperature variations. Its modular architecture also improves maintenance efficiency through easier replacement of acquisition units.
Modular distributed design allows easier maintenance and replacement of individual acquisition units.
Uses RS-485 bus communication with daisy-chain or star topology support and transmission distances up to 300 m.
Supports multi-controller expansion for large-scale distributed monitoring systems.
Compact, low-power design suitable for long-term field installation.
Enables 24/7 monitoring of bridges, buildings, port equipment, and construction machinery.
Supports synchronized measurement of strain, vibration, temperature, stress, displacement, and other parameters.
Allows flexible combination of acquisition modules based on monitoring requirements.
Provides synchronized multi-channel acquisition with sampling rates up to 100 Hz per channel.
Features built-in DSP processing for real-time data analysis.
Compatible with multiple sensor types, including bridge strain gauges, 4–20 mA sensors, and platinum resistance temperature sensors.
Designed for stable operation in environments with electromagnetic interference, lightning, and temperature fluctuations.
Supports Ethernet or 4G communication for remote monitoring and data transmission.
Enables long-term uninterrupted multi-channel data recording.
Bus-based digital communication improves signal reliability and reduces installation cost compared to traditional systems.
| Master Controller | |
| No. of Collector Channels | 4 Channels / 8 Channels (Option) |
| Sampling Rate | 10Hz, 20Hz, 50Hz, 100Hz, Grade Switching. Each bus is connected to one collector, Max. sampling frequency is 1kHz. |
| A/D Converter | 24 bits |
| Bridge Completion Resistors | 120Ω or 350Ω (By FOC) |
| Bridge Voltage | 2V (Custom), Max. 90mA |
| Bridge Configuration | Full, half, three-wire quarter bridge (120Ω or 350Ω) |
| Input Mode | DIF_DC, GND |
| Power Consumption | <3W |
| Full-scale Value | 50000με (By FOC) |
| Noise (Peak-to-Peak) | <1με |
| Indication Error | ±(0.5%red±3με) |
| Zero Drift | 3με/8h |
| Temp. Drift | <0.1μV/°C |
| Dimensions | 124×95×32mm |
| Weight | Typ. 500g (4 Channels) |
| Protection | IP65 |
| Strain Measurement Collector | |
| No. of Collector Channels | 4 Channels / 8 Channels (Option) |
| Sampling Rate | 10Hz, 20Hz, 50Hz, 100Hz, Grade Switching. Each bus is connected to one collector, Max. sampling frequency is 1kHz. |
| A/D Converter | 24 bits |
| Bridge Completion Resistors | 120Ω or 350Ω (By FOC) |
| Bridge Voltage | 2V (Custom), Max. 90mA |
| Bridge Configuration | Full, half, three-wire quarter bridge (120Ω or 350Ω) |
| Input Mode | DIF_DC, GND |
| Power Consumption | <3W |
| Full-scale Value | 50000με (By FOC) |
| Noise (Peak-to-Peak) | <1με |
| Indication Error | ±(0.5%red±3με) |
| Zero Drift | 3με/8h |
| Temp. Drift | <0.1μV/°C |
| Dimensions | 124×95×32mm |
| Weight | Typ. 500g (4 Channels) |
| Protection | IP65 |
| Current Measurement Collector | |
| No. of Collector Channels | 4 Channels / 8 Channels (Option) |
| Sampling Rate | 10Hz, 20Hz, 50Hz, 100Hz, Grade Switching. Each bus is connected to one collector, Max. sampling frequency is 1kHz. |
| A/D Converter | 24 bits |
| Connection Modes | Three-wire or two-wire |
| Input Current Range | 4 ~ 20mA |
| Power Supply | 24V (Max.50mA) |
| System Uncertainty | <0.5% of F.S. |
| Dimensions | 124×95×32mm |
| Weight | Typ. 500g |
| Protection | IP65 |
| IEPE Measurement Collector | |
| No. of Collector Channels | 4 Channels / 8 Channels (Option) |
| Sampling Rate | 10Hz, 20Hz, 50Hz, 100Hz, Grade Switching. Each bus is connected to one collector, Max. sampling frequency is 1kHz. |
| A/D Converter | 24 bits |
| Input Mode | IEPE |
| Range | ±5V(By FOC) |
| Power Supply | 24V(Max.50mA) |
| Freq. Response | DC~30Hz (Flatness: 0.1 dB) |
| System Uncertainty | <0.5% of F.S. |
| Dimensions | 124×95×32mm |
| Weight | Typ. 500g |
| Protection | IP65 |
| Temperature Measurement Collector | |
| No. of Collector Channels | 4 Channels / 8 Channels (Option) |
| Sampling Rate | 10Hz, 20Hz, 50Hz, 100Hz, Grade Switching. Each bus is connected to one collector, Max. sampling frequency is 1kHz. |
| A/D Converter | 24 bits |
| Sensor Type | PT10, PT100, PT1000 (By FOC) |
| Range | (-50°C~850°C) |
| Constant Current Source | 1mA, Accuracy is 1% |
| Freq. Response | DC~30Hz (Flatness: 0.1dB) |
| Connection Modes | Four-wire |
| Dimensions | 124×95×32mm |
| Weight | Typ. 500g |
| Protection | IP65 |
| Voltage Acquisition Collector | |
| No. of Collector Channels | 4 Channels / 8 Channels (Option) |
| Sampling Rate | 10Hz, 20Hz, 50Hz, 100Hz, Grade Switching. Each bus is connected to one collector, Max. sampling frequency is 1kHz. |
| A/D Converter | 24 bits |
| Input Mode | SIN_DC |
| Range | ±5V (By FOC) |
| Power Supply | 5VDC, 12VDC, 24VDC/50mA MAX (By FOC) |
| Freq. Response | DC~30Hz (+0.5dB ~ -3dB) |
| System Uncertainty | <0.5% of F.S. |
| Power Consumption | <3W |
| Dimensions | 124×95×32mm |
| Weight | Typ. 500g |
| Protection | IP65 |
| Vibrating Wire Collector | |
| No. of Collector Channels | 4 Channels / 8 Channels (Option) |
| Excitation mode | 800 ~ 3.3kHz |
| Input voltage | 2.5 ~ 5kHz |
| Measurement parameters | Frequency measurement (frequency pulse); Temperature measurement (resistance) |
| Measurement range | Frequency: 400~800Hz Temperature: -20~80°C |
| Accuracy | Frequency: 0.1Hz Temperature: ±0.5°C |
| Resolution | Frequency: 0.02Hz Temperature: 0.5°C |
| Switching between channels | less than 2 seconds |
| Mode | uses sweep frequency |
| Dimensions | 124×95×32mm |
| Weight | Typ. 500g |
| Protection | IP65 |
| Environmental Conditions | |
| Operating Temperature | -30°C to 70°C |
| Operating Humidity | 90% RH 24h@60°C |
| Storage Temperature | -40°C to 70°C |
| Storage Humidity | 90% RH 24h@60°C |
| Vibration | Frequency cycle range: 5Hz ~ 55Hz ~ 5Hz Drive amplitude (peak): 0.19mm Sweep frequency: ≤10ct./min Duration of resonant: 10min Vibration direction: x, y, z |
Figure 1 Single system block diagram
Figure 2 Connection Diagram of Distributed On-line Monitoring System
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 | |
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Master Controller
Ethernet communication. Each controller supports 4 bus signal inputs, and each bus can support up to 8 collectors (full channel 128 channels). The maximum sampling frequency for a single path and single node can reach 1000Hz. It also supports synchronous expansion between controllers, and the expansion distance between the controller and the farthest collector can reach 300 meters. Protection level: IP65. |
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| Strain Measurement Collector(Option):
Three types of circuits: 1/4 bridge (120Ω or 350Ω), half- bridge, and full-bridge. The resistance of each bridge arm can be selected independently; Supply voltage: 2V or 5V, choose one of the two. Other power supply requirements can be customized individually; Range: ±50000με, other range settings can be customized individually. |
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| Current Measurement Collector(Option):
Connection method: Three-wire system or two-wire system; Power supply voltage: 24VDC, customizable for other specifications; Measurement range: 4~20mA, customizable for other specifications; |
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| IEPE Measurement Collector(Option)::
Input method: IEPE; IEPE power supply: 4mA/24V; Voltage range: 5000mV; |
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| Temperature Measurement Collector(Option):
Resistance type: Thermal resistors PT10, PT100, or PT1000, and should be four-wire type. |
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| Voltage Acquisition Collector(Option):
Excitation voltage: Choose any one of 5V, 12V, and 24V. Specify one type when placing an order, and make a note when placing orders for other voltage levels. Measurement range: 5000mV. Other voltage levels can be customized upon order placement. Integrated inductive-electromagnetic sensor in-situ calibration function. Compatible with Dynatronic inductive- electromagnetic sensor model: DT2D001A; |
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| Vibrating Wire Collector(Option):
Excitation method: (400~1.2kHz), (1~3.2kHz), (2~4.5kHz), step size 10Hz; Input voltage: 5V; Measurement parameters: Frequency measurement (frequency pulse), Temperature measurement (resistance) Measurement range: Frequency: 400~5000Hz; Temperature: -20~+80℃; |
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| RS232 Bus Card(Option):
1 channel/card; Standard RS232 protocol; The user needs to provide the protocol parsing format; Special requirements by FOC |
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| RS485 Bus Card(Option):
1 channel/card; Standard RS485 protocol; The user needs to provide the protocol parsing format; Special requirements by FOC |
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| Power Cable:
Three-phase power cable |
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| Gigabit Network Cable:
5m |
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| Copper Core Nylon Cable Cap (with Copper Core):
3mm |
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| Packing Case:
3U |
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| Fuse:
2A |
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| Software USB drive |  |