- Sensors
- Temperature monitor TW 50/60
- Temperature monitor TW 03 S – Type 8432
- Electronic temperature monitor – Type 8433
- PT100 thermo sensor – Type 8433
- Electronic thermostat – Type 8434
- PT100 thermosensor – Type 8434
- Electronic thermostat in cable form – Type 8434
- PT100 thermosensor 2-wire and 3-wire cable connection – Type 8434
- Non-contact magnetic switch – Type 8441
- Current sensor – Type 8442
- Non-contact overhead wire contact TLC 4 – Type 8474
- Precipitation sensor – Type 8921
- Precipitation sensor – Type 8921
- Potential monitoring/-protection
- Mobile adjustment and test device – Type 8204
- Potential monitoring devices
- Display unit – Type 8540
- Voltage Monitors
- Voltage Signal Relays
- Potential Protection Devices
- for floating grounds with voltage monitoring – Type 8900
- for floating grounds with voltage monitoring – Type 8900
- for floating grounds with current control – Type 8901
- with low voltage limiter, surge arrester current monitoring and remote clearing function – Type 8901
- with SIEMENS low voltage limiter and surge arrester – Type 8901
- for open earthing with current monitoring and remote clearing – Type 8901
- for floating grounds with current control and LED indicator – Type 8901
- Voltage fuse – Type 8961
- Voltage Limiting Device – Type 8962
- Over Voltage Protector Type PSNP – Type 8963
- R/C combination – Type 8970
- Earthing device – Type 8971
- Special relays
- Switching amplifier
- Temperature monitoring – Type 8435-PT100
- Evaluation unit – Type KAG2
- Evaluation unit – Type 8480
- Evaluation unit – Type KAV1
- Switching amplifier – Type 8582
- Switching amplifier – Type 8582DCW
- Isolating switching amplifier – Type 8583
- Switching amplifier – Type 8586
- Mobile Test Device for non-contact overhead contact line switch
- Cable Monitoring Devices
- Points Heating Systems
- Current Monitoring/-supply
- Cabinets
- Accessories
- Individual Solutions
Description
The voltage monitor type 8539, part no. 23018x two limits can independently monitor.
Due to the high input impedance (about 2 Mohm) and the high over-voltage strength, the device is such as to monitor the voltage of contact line systems.
When running part no. 23018x the output relay is activated only when the voltage value, longer than the predetermined time constant is present and the unit is in operation.
Function
The monitoring device part no. 23018x measures the voltage at the monitored site. Decreases or increases the measured voltage is below or above one of the selected limits, this is registered by the device. If the limit for a period of time set permanently at or exceeded, the output of the relay K1 or K2 will change accordingly.
If the threshold is exceeded again, so the relays K1 and K2 are delayed in their normal position and switch on again when the above conditions are met again.
Commissioning
The monitor is delivered with a limit value of DC 200 V for K1 and K2 for DC 400V.
The voltage source to be monitored is to connect (eg between contact line systems and rail or similar).
The supply voltage of the device (AC or DC depending on model) must be connected.
Reprogramming thresholds:
After applying the desired limit as measured voltage at the test voltage input, the learning process (programming) to start the device.
By pressing the „Prog1“ / „Prog2“ (> 3s) a learning procedure is started. To program the switch points and delay times for K1 and K2, see overleaf.
The learning procedure takes less than 10 s, the parameters are stored until an appropriate new programming and permanently retained even after power failure.
The times are programmed at the above and below the threshold.
The contact display on the device corresponds to the position when no voltage is applied.
Other monitoring equipment see complete brochure folder.
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