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8
78-9000-5020-0 Rev C
2. About This Manual
There are two basic models included in the 3M
™
Dynatel
™
Locator 7500 Series. The 7550
locator is designed for pipe/cable/EMS locating. The 7573 locator is designed for cable/
pipe/EMS and fault locating. The iD option (read/write capability to 3M
™
iD Markers)
is standard for both models. The 7550/7573 Series transmitters are available in 3 watt,
5 watt and 12 watt units. They provide .5 watts, 3 watts, 5 watts and 12 watts of output
power. 5 and 12 watts is attained by utilizing the Cigarette Lighter Adapter or External
Rechargeable Battery. This instruction manual will include all features. Instructions are
applicable to all products, unless noted. The 12-watt transmitter offers additional power
output levels for improved induction performance and 8 kHz (low frequency) induction
for shallow facilities, such as risers. In order to demonstrate all available functions, some
illustrations depict the 7573-iD receiver unit. The 7550 receivers and transmitters may
vary from the illustrations shown.