TW-7700

The TW-7700 Digital Line Tracer consists of a transmitter, receiver, ground-plate/ground-rod assembly, carrying case (hard or soft), and an operators manual. It is a single frequency line tracer. The TW-7700 is an active locating line tracer. There are three methods of active locating that an operator can use to trace a utility - conductive, inductive, and coupling clamp.

Receiver

• Depth Accuracy: +1 inch per foot in nominal conditions
• Readout Units: Inches or cm (factory preset)
• Left/Right Guidance:
• Audio:
• Continuous tone=Left
• Pulsed tone=Right. VCO (varying pitch) output for easy over target location
• Visual:
• Left/Right/Over Target messages
• Signal Strength: Digital numeric readout (0-99%) & bar graph
• Sensitivity Adjust: Automatic
• LCD Backlight: Included
• Battery Test: Automatic Low Battery alert
• Push button readout
• Battery Type: Six “C” cells
• Battery Life: 80 hours
• Weight: 5.4 lbs.
• Operating Temperature: -4^o to +140^o F (-20^o to +60^o C)

Transmitter

• Output Frequency: 82kHz
• Output Power (nominal): 5watts
• Battery Test: Yes
• Battery Type: Two 6 volt lantern batteries
• Battery Life: 80 hours
• Weight: 5.0 lbs.

Manual: Download