D. Dual 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. Press Markr2 [SK Toggle] to select desired utility.

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.

−− The third and fourth soft key commands will populate with the types of utilities selected for Marker 1 and Marker 2.

Step 5. Adjust the Gain [3] downuntil the Bar Graphs [11] ([10] for 2550 locator) open.

−− The Bar Graph [11] ([10] for 2550 locator) will close, the audio will increase, and the Signal Strength [9] ([8] for 2550 locator) will increase when the receiver detects a marker of the specified utility.

−− When one of the two markers is detected, press the “XXX Only” [SK] for the detected utility marker. (“XXX” represents the marker types selected. In the above example, PWR Only and TEL Only.)

−− The receiver will switch to Single Marker Locate in order to pinpoint the marker (maximize the Signal Strength [9] ([8] for 2550 locator).

Step 6. Press Markr2 [SK Toggle] to return to Dual Marker Locate.

E. 3MiD Marker Depth

Step 1. Lower the tip of the receiver to the ground over the pinpointed marker.

Step 2. Press DEPTH [4].

−− The receiver will examine the marker (Calculating, please wait...)

−− If the marker is a 3MiD Marker, the receiver will display the depth of the marker, and its identification (serial) number.

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3M 2573, 2550 manual Dual Marker Locate, 3M iD Marker Depth