AIM-D100-CA Series DC Insulation Monitor

AIM-D100-CA series DC insulation monitor can be applied in a DC system of 0~1000V, used for online monitoring of DC ungrounded system positive and negative pole-to-ground insulation resistance, when insulation resistance is lower than the set value, it will send out warning or alarm signal. The product is mainly designed for DC 0~1000V range of electric vehicle charging device insulation monitoring, but also can be applied in energy storage DC, substation DC screens, UPS power supply systems, photovoltaic DC systems, and other DC power grid DC systems.

Specifications

• Resistance Monitoring: It monitors the insulation resistance between ungrounded DC systems and the earth, ensuring early detection of insulation failures to prevent system faults.
• Voltage Monitoring: The device can monitor DC system voltages to ensure they remain within safe operational limits.
• Optional Current Monitoring: In some models, the device may offer current monitoring, providing additional safety features by tracking current leakage.
• LED Indicators: Built-in LEDs provide immediate visual status updates, such as normal operation, warnings, and critical insulation failures.
• RS485 Communication: The device features RS485 communication with Modbus RTU protocol, allowing integration into existing monitoring systems for remote data collection and control.
• Metal Casing: It is housed in a durable metal enclosure, offering protection against environmental factors and improving the device’s longevity in industrial settings.
• Plug-in Terminals: The monitor has plug-in terminals for easier wiring and installation, simplifying maintenance.

• Auxiliary Power:
  • DC 9~36V
  • Maximum power consumption: ≤6W
• Voltage Monitoring:
  • Voltage range: DC 0~1000V
  • Accuracy: Class 0.5
• Current Monitoring:
  • Monitors current via an external current shunt, available only in CAI models
  • Accuracy: 5%
• Insulation Monitoring:
  • Insulation resistance range: 1kΩ~10MΩ
  • Warning and alarm range: 10kΩ~10MΩ
  • Accuracy:
    • 1~10kΩ: ±1kΩ
    • 10k~500kΩ: ≤3%
  • System leakage capacitance: ≤5μF
  • Insulation monitoring speed: 500ms/cycle or 1000ms/cycle
• Alarm Method: LED indicator
• Communication:
  • RS485 interface with Modbus-RTU protocol
• Installation:
  • Wall-mounted or DIN-rail installation (plastic stent included)
• Protection Level: IP30
• Environment:
  • Operating temperature: -40~+75℃
  • Storage temperature: -40~+125℃
  • Relative humidity: <95%, non-condensing
  • Altitude: <2000m