3M 2550 Manuale Utente

78-9000-0192-2 Rev C 

43

 

− The display will return to Special Peak 

(Spl Pk) Cable Locate / Alert On.

 

− If the selected type of utility marker is 

detected, a second audio tone will emit 

from the unit and the marker bar graph 

will fill. 

Step 6.  To change the type of marker that the unit 

will detect in alert mode:

 

− Press Menu/OK [5] + Marker [SK] + 

Markr1 [SK Toggle].

 

− Select appropriate Marker utility by 

pressing Markr1 [SK Toggle].

 

− Press Menu/OK [5].

 

− Press Cable/Pipe [SK] to return to the 

locate mode with the newly selected 

marker type displayed.

 

− Adjust the Gain [3] again per step 4 

above.

 

− Press Menu/OK [5].

C. Single Marker Locate

Step 1.  Press Menu/OK [5:Toggle to LOCATE 

MENU display]

Step 2.  Press Marker [SK]
Step 3.  Press Markr1 [SK Toggle] to select 

desired utility.

Step 4.  Markr2 should be OFF.
Note: Only the marker types enabled in the setup 

 

− When a marker is detected, adjust the 

Gain [3] down until the Bar Graph [11] 

([10] for 2550 locator) opens.

 

− The Bar Graph [11] ([10] for 2550 

locator) will close, the audio will be 

steady, and the Signal Strength [9] ([8] 

for 2550 locator) will be maximum 

when the receiver detects a marker of the 

specified utility and has pinpointed its 

location.

Gain level