Fairbanks Aegis Coil Scales - Manual (Page 26)

Section 4: Electrical Installation
04/10 26 51205 Rev. 2
4.3 GROUNDING THE SCALE
4.3.1. Standard Analog Type Assembly
The Aegis Coil Scale comes standard with the Analog type assembly, needing one
(1) ground rod kit.
─ For accurate operation and protection against damage from lightning strikes,
all of the components of the system must be properly grounded.
4.3.2. Intalogix
™
Technology Systems
The optional Intalogix
™
Technology Systems require two (2) ground rods in
the pit for proper connection.
─ If Intalogix Technology is used, then one (1) additional ground rod kit will
be required for SSC (two total).
4.3.3. Standard Grounding Guidelines
Use the following guidelines to correctly ground the system:
• Use 8 AWG or larger wire, or braided ground straps.
• All ground connections should be two feet (2’) or less, or as conditions warrant as
short as possible.
• The 117 VAC Surge Voltage Protection (SVP) Unit connects to a ground at
the instrument’s incoming power outlet.
─ Use a voltmeter to test the electrical power source available.
─ The Neutral-to-Ground voltage level must be 0.2 VAC or less.
4.3.4. Grounding with Intalogix™ Technology
• One ground rod connects to the PPS, and the second ground rod connects to the
weighbridge.
─ The SSCs and PPSs enclosures attach connections to the weighbridge in the
Access Area Grounding Stud. The weighbridge is then connected to a ground
rod.
─ The insulated WHITE WIRE from the PPS connects directly to the separate
ground rod, and not to the same rod as the Weighbridge.