Bender ISO 685-S Insulation Monitoring Device

Description

Bender ISO 685-S Insulation Monitoring Device

Product Dimensions：

The Bender ISOMETER® iso685-S is a state-of-the-art insulation monitoring device designed specifically for unearthed systems (IT systems). The “-S” variant is an enhanced version often utilized in high-demand industrial environments and renewable energy sectors to monitor the insulation resistance ($R_F$) between the system and earth.

Product Detailed Description

The iso685-S series represents the pinnacle of Bender’s monitoring technology. It uses the patented AMP Plus measurement principle, which allows it to accurately monitor systems with high leakage capacitances (up to 1000 $\mu$F) and modern power electronics, such as variable speed drives (VFDs) and inverters. It provides continuous monitoring without disconnecting the system, ensuring high operational reliability.

Technical Parameters

Key Product Advantages

• High Precision in Complex Systems: Effectively filters out interference from DC components and harmonic distortion caused by modern power converters.

• Intuitive Visualization: Features a high-resolution LC display that shows the insulation resistance over time via an integrated History Memory (Trend Graph), allowing for predictive maintenance.

• EDS Integration: Supports the Insulation Fault Location System (EDS). When used with external current transformers, it can pinpoint exactly which branch circuit has the fault.

• Global Connectivity: Built-in web server and Modbus TCP allow for remote monitoring via a browser or integration into a higher-level SCADA system.

• Redundancy Support: The “S” version is often chosen for its robust hardware and suitability for safety-critical applications.

Important Considerations (Precautions)

• Only for IT Systems: This device is strictly for unearthed (IT) systems. It must not be used in grounded (TN or TT) systems.

• Single Device Rule: In a coupled IT system, only one ISOMETER® may be active at any given time. Using two monitors simultaneously will cause measurement errors.

• System Coupling: If two IT systems are connected via a tie-breaker, use the Bender BCOM interface to ensure the devices coordinate their measurements.

• Measurement Time: In systems with very high capacitance, the measurement may take several seconds to stabilize. This is normal as the device must “charge” the system capacitance to get an accurate reading.

Product Applications

• Oil & Gas / Mining: Monitoring critical power systems in hazardous areas where a sudden shutdown could cause a disaster.

• Renewable Energy: Large-scale solar PV plants and wind turbines with high DC bus voltages and significant leakage capacitance.

• Marine & Offshore: Shipboard power systems where maintaining “first-fault” operation is vital for navigation and safety.

• Manufacturing: Data centers and automotive production lines (especially those with many frequency converters).

Shipping Port: Xiamen, China

Payment: Bank of Chicago, Bank of Singapore

Express cooperation: fedex, DHL, UPS and your express account

Service: Professional Sales provides 24 hours /7 days online service

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