Overview
The AIM-R100 residual current monitor is specifically designed for medical class 2 and class 1 locations, primarily used to monitor residual currents in main lines and branches of TN-S power distribution systems. When the residual current exceeds a preset threshold, the system issues an alarm signal, reminding staff to take appropriate action, thereby eliminating electrical fire risks, electric shock hazards, and ensuring clean, safe, and continuous power supply for equipment.
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12-Channel Monitoring
- 12 independent channels
- 0-5000mA measuring rang
Adjustable Alarm Threshold
- 6-1000mA adjustable
- 50Hz ±5Hz frequency
RS485 Communication
- Modbus-RTU protocol
- Connects to AID150 / SCADA
Relay Output
- 1 NO contact
- AC250V/3A, DC30V/3A / AC250V/3A, DC30V/3A
Function
| Residual Current Monitoring | 12 independent channels, measuring range 0-5000mA, alarm setpoint adjustable from 6mA to 1000mA. Monitors residual current in each branch with high accuracy. |
| Alarm Output | 1-channel normally open relay output (AC250V/3A, DC30V/3A) for external alarm devices or control systems. |
| Communication | RS485 interface with Modbus-RTU protocol, enables connection to AID150 centralized display or upper monitoring system. |
| Fault Diagnosis | Continuously monitors for open circuit or short circuit of residual current transformers; displays fault type on LCD |
| Unused Channel Deactivation | Unused monitoring channels can be disabled via menu to avoid false alarms. |
Specification
| Parameter | Value |
| Model | AIM-R100 |
| Auxiliary Power | AC220V ±10% |
| Max. Power Consumption | ≤3VA |
| Number of Channels | 12 |
| Residual Current Measuring Range | 0 – 5000mA |
| Alarm Setpoint Range | 6 – 1000mA |
| Frequency | 50Hz ±5Hz |
| Alarm Output | 1 relay, NO, AC250V/3A, DC30V/3A |
| Communication Interface | RS485 |
| Communication Protocol | Modbus-RTU |
| MTBF | >50,000 hours |
| Mounting | DIN rail (35mm) |
| Display | LCD + LED |
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FAQ
Up to 16 AIM-R100 units can be connected via RS485 to a single AID150 for centralized monitoring. The system addresses must be set correctly.
Check whether the unused channels are disabled in the menu; if all channels are used, verify that each residual current transducer is firmly connected to the corresponding input terminals.
Enter the setting menu via the front panel, select the desired channel, and adjust the alarm value between 6mA and 1000mA.
It indicates that the two wires of the residual current transducer are short-circuited. Check the wiring and eliminate the short circuit.
Yes, it is designed for TN-S systems commonly used in medical facilities, including those with isolation transformers. However, it monitors residual current, not insulation resistance.
Summary
The AIM-R100 residual current monitor provides comprehensive protection for TN-S power distribution systems in medical environments. With 12 independent channels, adjustable alarm thresholds, and reliable relay output, it ensures timely detection of abnormal residual currents, preventing electrical fires and shock hazards. Its RS485 Modbus-RTU interface enables seamless integration with centralized displays and building management systems. Easy DIN-rail installation, intuitive LCD interface, and self-diagnostic functions make it an ideal choice for new hospital projects or upgrades of existing medical facilities.
