3M 2550, 2573 manual Single Marker Locate

−− 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.
	Gain level
Note: Only the marker types enabled in the setup
menu will be shown. (See 13.A Enabling/Disabling
Marker types). When scanning for markers, the
Gain Level [7] should be set high.
−− 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.

78-9000-0192-2 Rev C 43