ISOMETER® isoHR1685DW–925
- Insulation monitoring device for mobile, insulated elevating work platforms
- Protection when working on overhead lines under voltage
- Continuous insulation monitoring during operation
- Storage of data for verification of insulation condition
- Graphical representation of the insulation resistance over time (isoGraph)
The ISOMETER® isoHR1685DW-925 is designed for insulation monitoring on elevating work platforms/overhead catenary vehicles. Voltages of up to 1500 V make working on live overhead lines for local transport vehicles particularly hazardous. To protect operatives, overhead catenary vehicles are equipped with 2 insulation levels. Pollution, ageing or damage to these insulation levels can cause the current to be perceptible to people and presents an electrocution hazard.
The isoHR1685DW-925 makes a valuable contribution to improving the safety of work carried out on live systems of this kind.
The device is installed in the vehicle, where it continuously monitors the insulation level and notifies operatives immediately whenever defined insulation levels drop below defined thresholds during the approach, and both before and during maintenance work. Both insulation levels can be monitored.
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ISOMETER® for mobile, insulated elevating work platforms
- Continuous monitoring of both insulation levels on elevating work platforms, also during operation
- Storage of data for verification of insulation condition. Where necessary, provision of documentary verification following a electrical accident
- Graphical representation of the insulation resistance over time (isoGraph)
- RS-485 interface with BMS protocol and Modbus RTU for forwarding data, alarms and acknowledgements via existing communication to work platform
- History memory with real-time clock (3-day buffer) for storing 1023 alarm messages with date and timestamp
- Freely programmable digital inputs
- Automatic device self-test with automatic message in the event of a fault
- Connection monitoring
- Separately adjustable response values Ran1 (alarm 1) and Ran2 (alarm 2) for prewarning and alarm
- High-resolution graphic LC display, for excellent readability and recording of the device status
- Measurement of high-resistance insulation faults 100 kΩ…50 GΩ
- Automatic adjustment to high system leakage capacitances
- Insulation monitoring device for mobile, insulated elevating work platforms
Variantes de ISOMETER® isoHR1685DW–925
| Type | Supply voltage* | Response value range | Nominal system voltage | Art. No. |
|---|---|---|---|---|
| isoHR1685DW-925 | DC 18…30 V | 100 kΩ…100 MΩ | AC 0…1000 V, DC 0…1500 V | B91065806W |
Descargas para ISOMETER® isoHR1685DW–925
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