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3M Dynatel 7550 Series - Depth and Current Estimation

3M Dynatel 7550 Series
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34 78-9000-5020-0 Rev C
8. Depth and Current Estimate
Verifying the target path, depth and current can be helpful tools.
Pinpoint the cable or pipe being located.
Lower the tip of the receiver to the ground and
press DEPTH [5].
The depth to the target cable or pipe is displayed
in the units specied in the receiver set up menu.
The bold current reading is a relative current
measurement. This reading can be compared
to the relative current reading that alternately
ashes with the frequency on the transmitter.
The milliamp reading is an actual current
measurement.
There are two options for measuring depth.
Live depth is a continuous measurement. 1-Shot
Depth is an averaging of the depth reading.
When in 1-Shot mode, the unit will average
the depth reading for three seconds, and then
display the result on the screen. Press Depth [5]
to alternate between the two modes.
Five depth readings can be saved with the time,
date and relative current measurements.
Pressing Mem Select [SK] and then Save [SK] will place each entry in sequential order
in memory (M1–M5) until ve readings have been stored. The unit will overwrite
saved entries in excess of ve, beginning with M1.
Optional step: Press Clear All [SK] to delete all
stored depth information.
The operator may select a specic memory
location to store the depth readings by pressing
Mem Select [SK]. When the preferred location
appears on the display, press Save [SK]. The
display and memory location will populate with
the current information.
Each memory location can be reviewed by
pressing Mem Select [SK].
Press TRACE [3] or DEPTH [5] to return to Locate
mode, or wait until receiver automatically returns
to the Locate mode.

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