OhmGuard
The OhmGuard® earthing system is used to verify the electrical continuity of hoses and bonding conductors before transfer operations. It provides a simple pre-use check to confirm that a low-resistance path is present, helping identify faulty or high-resistance connections prior to loading, unloading, or material recovery activities. It is commonly used in applications involving tanker trucks, vacuum trucks, and field bonding assemblies where reliable electrical continuity is required for safe static control.
Application:
Pre-operation continuity testing of hoses and bonding conductors in industrial transfer operations
Function:
Verifies electrical continuity to ensure a low-resistance path before process use
Operating Applications
- Vacuum truck hose testing prior to spill cleanup or material recovery
- Tanker truck hose testing prior to transfer of flammable liquids (e.g., solvents)
- Field testing of bonding assemblies and conductors
Indicator type:
High-intensity flashing green LED
Function:
Provides visual confirmation when resistance is below the system threshold, indicating acceptable electrical continuity for operation use
System Functionality
- Pre-operation electrical continuity check
- Visual GO/NO-GO indication via LED
- Designed for rapid fault detection without scheduled periodic testing requirement
Additional information
| Parameter | Value |
|---|---|
| Standard | CLC/TR50404 (§11.2.2): "the most important thing […] is that all connections are reliable […] and not subject to deterioration" . |
| Certification | ATEX, CSAUS, IECEX |
| Security level | Semi-active |
| Application | Continuity, Drum / container / ibc |
| Mode de protection | Intrinsic safety |
| Zones Installation | Zone 0, Zone 1, Zone 2, Zone 20, Zone 21, Zone 22 |
| Divers | Battery |
| Recommendations | NFPA77-2007 (§6.8.4): "In equipotential bonding and grounding installations prone to corrosion and movement, or with insulating surface coatings, self-testing equipotential bonding clamps may be used to continuously monitor ground resistance and verify that the results are acceptable". |
| ATEX Gas certification | Ex II 1 G Ex ia IIC T4 Ga |
| ATEX dust certification | Ex II 1 D – Ex ta IIIC T135°C Da |
| Certification temperature | From -40°C to 60°C |
| Material | 304 stainless steel pliers with tungsten carbide tips, coiled cable with CenStat® Hytrel antistatic coating |
| Power supply | 9V battery included |
| Options | 10 or 15m coiled cable, enclosure |
Installation and Operating Instructions
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