Grounding Control
Grounding control devices for controlled discharge of electrostatic electricity are an important and necessary part of loading rigs and filling stations handling inflammable liquids.
DCMT
To avoid dangerous sparks between a component and the tank during the loading operation, the tank must be earthed. The basic function of the DCMT 3 is to automatically earth the tank to the ground, preventing dangerous sparks between the rig and the tank and minimizing operator error.
DCMT3 is programmable and changes to the set up values for electrical recognition can be made. The value of resistance and capacitance limits are programmable.
The site specific electrical signatures are pre-set during the manufacture stage and if necessary these can be controlled externally.
The application should be specified when ordering.
Main applications of the DCMT 3 are:
- Tank truck earthing
- Barrel earthing
- Wagon earthing
| Technical specifications and other information | |
| DCMT3 Data Sheet | Download |
Grounding Tester
The Grounding Control Devices of the EKx-3 family are designed to carry out controlled grounding connection to the component while loading fuels into road tank trucks, railway tank wagons, container or similar transport barrels.
The Grounding Tester is guaranteed to only load where there is sufficient low impedance grounding connection to the object. As soon as the correct grounding is detected,control outputs are switched over to release. If the grounding connection is interrupted, the device switches immediately back into the safe status.
The different types are modularly designed in the same way and differ alone by the built-in measuring oscillator, which is optimally adapted for the respective measuring function:
- EKx-3: Standard design for grounding of road tank trucks and rail tank wagons
- EKK-3: Designed for grounding of rail tank wagons, containers and barrels
- EKS-3: Designed for grounding of road tank trucks only
- EKT-3: Designed for external customized oscillators or measuring transducers
| Technical specifications and other information | |
| Grounding Tester Brochure | Download |
Marine Grounding

The Marine Grounding System type SEK-2 serves to carry out and monitor potential equalization during loading and unloading of inland and sea oil tankers.
This ship grounding system consists primarily of a Grounding Control Device type EKT-3, a measuring transducer and a grounding control unit including a contactor, which are built into a water-jet protected switchgear cabinet of stainless steel.
The measuring transducer is designed to monitor the extremely low impedance equipotential bonding line and controls the power contactor for connecting through the potential equalization line via the grounding control device.
Due to the very low impedance monitoring circuit, the capacity and hence the length of cable is not critical. Therefore, cables up to maximum length of 30 m can be used.
| Technical specifications and other information | |
| Marine Grounding Brochure | Download |
Coupler Interface

The coupler interface is an electrical device for use in zone 2 potentially explosive atmosphere areas. The intrinsically safe potential-free control output is compatible with the limit value sensor for overfill preventions and designed for connection to a limit value socket according to TRbF511.
Note: Brochure is in German only.
| Technical specifications and other information | |
| Coupler Interface Brochure | Download |



