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Earth-Rite® MGV


Truck Mounted Static Grounding Verification

The Earth-Rite Mobile Ground Verification system (MGV) is a unique, patented technology designed to provide automatic confirmation of a positive electrostatic ground connection for vehicles collecting and transferring combustible products.

Vacuum tankers, including their hoses and hose connections, are susceptible to static charge accumulation during the transfer of product into or out of the tanker’s containment system. This accumulation of static charge is equivalent to a hidden source of ignition and if discharged as a static spark can lead to the ignition of the product or the atmosphere in which the tanker and material handling team is operating.

API RP 2219: Safe Operation of Vacuum Trucks in Petroleum Service.

To eliminate the risk of incendive static spark discharges the API standard 2219: Safe Operation of Vacuum Trucks in Petroleum Service recommends that vacuum truck operators transferring flammable and combustible product in hazardous locations must fully ground the truck prior to any other task in the transfer operation by connecting the truck to a “proven ground source”. The Earth-Rite MGV is designed to enable operators establish safe grounding of their vehicle in accordance with this standard.

In addition, the Earth-Rite MGV can be fitted to bulk transport vehicles. This permits drivers verify if the designated earthing point at the delivery location is functioning correctly.

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Benefits

Static Ground Verification

The MGV system ensures the connection resistance of the object that is identified as the ground source to earth, is low enough to safely dissipate static charges from the truck.

Continuous Ground Loop Monitoring

When the Static Ground Verification process is confirmed, the MGV system continuously monitors the connection resistance of the truck to this verified grounding point for the duration of the transfer process. This connection resistance must be maintained at 10 ohms (or less) for the duration of the transfer process.

Two Output Contacts

located in the control unit of the MGV system can interlock with pumps or other control devices to prevent transfer operations should a static ground connection fail to be established or maintained for the transfer process.

Easy and Quick Operation

Removing the need for taking manual resistance readings or interacting with complex system interfaces the operator activates the system by simply connecting the system’s grounding clamp to a site designated grounding point, buried metal structure (pipes, storage tanks) or temporary points like buried grounding rods.

 

System Options

Earth-Rite MGV Options 

 

Certification

Ingress Protection

IP 66 / NEMA 4, 4X, 7

Operating Temperature Range:

-40ºC to +55ºC

Power Supply:

12V DC or 24V DC

ATEX ApprovedIECEx Approved  SIL 2 ApprovedcCSAus Logo