Utility Hookup Guides
Printable Utility Hookup guides

Printable Guides

RD7200 Utility Hookup Quick Card
Water: Metallic: Direct connect to valve/hydrant Plastic (PVC) w/ tracer wire: Red to tracer wire Black to ground stake No tracer wire: Use sonde Freq: 8 kHz–33 kHz Sewer: Non-metallic: Use sonde in cleanout/camera Metallic (rare): Direct connect Freq: 33 kHz or 512 Hz sonde Electric: Clamp on insulated live cable Alt: Direct connect to sheath/ground (if safe) Check passive power first Freq: 8–33 kHz Gas: Plastic w/ tracer wire: Red to tracer wire Steel main: Direct connect to valve/riser Freq: 512 Hz–8 kHz Fiber Optic: Armored: Clamp around sheath With tracer wire: Direct connect Freq: 512 Hz–8 kHz Chilled Water: Usually metallic: Direct connect to valve/pipe Clamp if insulated Freq: 8 Hz–8 k Reclaimed Water: Plastic w/ tracer wire: Direct connect No tracer wire: Induction Freq: Start low, increase if needed Best Practices: Direct connect if possible Ground stake 10–20 ft away, perpendicular Start low frequency Confirm with multiple sweeps & modes

Locator Reference Guide Checklist
Utility Locating Quick Reference Guide 1. Arrival & Safety Check in & review site maps Wear PPE (vest, hard hat, gloves, boots, glasses) Walk job site & identify hazards Plan which utilities need locating 2. Equipment Setup Inspect & power on RD7200/RD8200 Run self-test, check batteries Select correct mode: Active / Passive / Induction 3. Hookup Steps Preferred order: Direct Connect → Clamp → Induction Red lead → Utility (metal/tracer wire) Black lead → Ground stake (away from other utilities) Start with low frequency, increase only if needed 4. Utility Locating Colors: 5. Locating & Marking 1. Sweep in both directions 2. Verify signal strength 3. Mark path: Flags at turns/crossings, Paint dashes + arrows 4. Depth check at critical points 6. Packing Up Disconnect transmitter & ground Clean & inspect equipment Collect flags/cones/safety gear Record locate (photos/Notes/Comment to Call Center) Report job complete Best Practices Always confirm with 2+ modes when possible Avoid hooking near transformers/multiple parallel lines Double-check crossings Keep marks consistent & visible