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Grounding monitoring devices and systems

Safe earthing for hazardous goods
Earthing monitoring devices eliminate explosion hazards when loading flammable liquids, gases and powders. In order to achieve this, they provide electrostatic earthing and monitor it continuously. R. STAHL supplies earthing systems for a huge variety of objects, with practical, cleverly designed additional functions to make your life easier.

R. STAHL supplies earthing monitoring devices for a wide variety of objects, such as tanker lorries, tank wagons, drums, etc. Our earthing systems use robust stainless steel earthing clamps. Not only this, but options such as the automatic retractor and practical accessories make this product very easy to use.

8150 and 8146 series devices provide earthing without object recognition and can be used universally. 8485 series earthing devices check the quality of the earth connection and detect whether the earthing clamp has been correctly secured to the object that is to be filled, and that it has not accidentally been secured to the loading equipment. This automatically eliminates the possibility of improper use.

  • Solutions for Zones 1, 2, 21 and 22
  • Solutions designed for a variety of objects such as tanker lorries, tank wagons, drums or FIBCs
  • User-friendly extras such as coiled cables and automatic retractors plus a wide range of accessories such as horns, beacons and key-operated switches

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4 Series (5 Products)

Explosion Protection
Ex Grounding Monitoring Device Series 8146 R. STAHL

Grounding Monitoring Device Series 8146

  • Continuous monitoring of correct grounding
  • Robust design
  • Plastic enclosure (IP66)
  • Potential-free change-over contact for signalling to the process control system and external control devices
  • Insulated point of suspension
  • For use up to SIL 2 (IEC 61508)
Explosion Protection
Ex Grounding Monitoring Device Series 8485 R. STAHL

Grounding Monitoring Device Series 8485

  • Continuous monitoring of correct earthing
  • Potential operator errors are prevented thanks to object detection (on truck)
  • Water-jet-proof IP65 stainless steel or aluminum enclosure
  • Up to four potential-free change-over contacts for signaling
  • Ambient temperature -55 °C to +60 °C
  • Auxiliary power: 24 V DC – 230 V AC
  • Parameterisation when enclosure is closed
Explosion Protection
Primary Image 9170/21-30-10

Switching repeater - leakage monitoring series 9170

  • Controlled electrostatic grounding of extremely versatile objects
  • One potential-free change-over contact per channel for signaling to the distributed control system or external signalling devices
  • Compact dual-channel device
  • LED status indicator
Explosion Protection
Ex Grounding Monitoring Device Series 8150 R. STAHL

Grounding Monitoring Device Series 8150

  • Continuous monitoring of correct grounding
  • Robust design
  • Weather-protected stainless steel enclosure (IP66)
  • Potential-free change-over contact for signalling to the process control system and external control devices
  • Insulated point of suspension
  • For use up to SIL 2 (IEC 61508)

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