The Earth-Rite® II DGS Dual Grounding System (DGS) has two independent ground monitoring circuits that allows operators to ground and continuously monitor two items of metal conductive plant equipment concurrently to less than 10 Ohms, such as two bulk transportation vehicles or other metallic vessels like Ex IBCs and metal drums. This feature is commonly used to ground trucks and tank cars during transloading operations or to ground up to two trucks or tank cars that are being loaded/unloaded at dedicated loading rack installations. Interlocking the grounding system with the process equipment being used enhances the safety and operating procedure before the process starts. If the ground is lost then Earth-Rite® II DGS can shut down the process for one or both of the channels.
Note: This package includes Newson Gale's Earth-Rite® II DGS Static Grounding System with Two (2) Retracting Reels (50 ft. Straight Cable Included) and Two (2) Heavy Duty X90 SS Static Grounding and Monitoring Clamps.
Features
- Three attention grabbing red/green LEDs confirms resistance to earth is 10 Ohms (or less) - Complies with NFPA 77
- Monitors the resistance of the ground loop from the grounded object through to the site’s verified true earth grounding point
- Two dry output contacts which can be interlocked to electromechanical devices or PLC systems, to stop the flow of product should the system detect a risk of static charge accumulation
- Two VESX90-IP 2-pole heavy duty stainless steel static grounding and monitoring clamps with tungsten carbide pointed contacts to ease good metal to metal contact and spiral cable in-line-quick-connect feature
- Two self retracting cable reels with 50 ft. (15 m.) blue hytrel sheathed straight cables with quick connect fittings attached
- Two intrinsically safe wiring GRP junction boxes with quick connection and clamp stowage pin
- Supplied with 1 pair of handles for opening and closing of the enclosure lid
- Two year warranty
Specifications
Monitoring Unit:- Power Supply: 90 V to 265 V AC, 50-60 Hz
- Power Rating: 10 Watts
- Ambient Temperature Range: -40°F to +122°F (-40°C to + 50°C)
- Ingress Protection: IP 66
- Weight: 15.43 lbs. (7 kgs.)
- Construction: Copper Free Cast Aluminum - Enclosure Rating Nema 4X, (IP66)
- Monitoring Loop Resistance: Nominally ≤10 ohm per channel (+/- 10%)
- Output Relay Contact Rating:
- 3 off dry contacts, One per monitoring circuit and one group relay
- 250 V AC, 5 A, 500 VA max resistive
- 30 V DC, 2 A, 60 W max resistive
- Cable Entries:
- 4 x ¾ in. NPT
- 2 in the West Face (EX)
- 2 in the South Face (NonEX)
- Enclosure Material: GRP with Carbon Loading
- Terminals: 2 x 2.5 mm² Conductor Capacity
- Stowage Device: Insulated Universal Stowage Pin
- Cable Entries: 1 x M20 x 1.5
- Clamp Cable Connection: Quick Connect
- Clamp Design: 2 Pole with Tungsten Carbide Teeth
- Body: Stainless Steel
- ATEX / FM / IECEx Certification:
- Ex II 1 GD T6 (Assessed to EN 13463-1 : 2009)
- ATEX Certificate Number: Sira 02ATEX9381
- FM Certificate of Compliance Number: 3046346
- IECEx
- Ex h IIC T6 Ga
- Ex h IIIC T85°C Da
- Ta = -40°C to +60°C
- IECEx EXV 20.0033
- Cable: Blue Cen-Stat Hytrel Sheath (Static Dissipative, Chemical & Abrasion Resistant)
- Conductors: 2 x AWG #16 Copper
- Length: 50 ft. (15 m.) C142 Pole Cen-Stat Blue Straight Cable with Hytrel Coating Which Has Color, UV Protective and Static Dissipative Additives - Other lengths available - please call 1-800-333-3331 for more information
- Class I, Div 1, Groups A, B, C, D; T6
- Class II, Div. 1, Groups E, F, G; T 135C
- Class III, Div 1. 135C providing intrinsically safe circuits {Exia] for
- Class I, Div 1, Groups A, B, C, D;
- Class II, Div. 1, Groups E, F, G;
- Class III, Division 1.
- Ex db [ia Ga] IIC T6 Gb
- Ex tb [ia Da] IIIC T135oC Db
Applications
- Two Metal Drums
- Two Ex IBCs
- Two Rail Cars
- Transloading (Railcar to Truck or Truck to Rail Car)
- LACT (Lease Automatic Custody Transfer) Skids
Or any combination of the plant items above.
Downloads
Earth-Rite DGS Installaion & Operating Instructions (PDF Download)
VESM02 Reel Installation & Operating Instructions (PDF Download)
Earth-Rite DGS Data Sheet (PDF Download)
