3M 2550 Manuale Utente

78-9000-0192-2 Rev C 

61

Step 6.  Press Output Level [T-5] for high or maximum output level.
Step 7.  The Indicator Flag will light in the Digital Display [T-4] above the Output 

Level icon when in high output power level and flash when in maximum output 

power level.

Step 8.  The Digital Display [T-4] will alternately flash between 577 and 200K.

Step 1.  Press On/Off [1] to power the receiver on.
Step 2.  Press Menu/OK [5].
Step 3.  Press Tone/Ext [SK] to select Tone mode.
Step 4.  Connect a second coupler to the Receiver’s External Jack [15] ([14] for 

2550) using the Earth Contact Frame cable (4 ft. (1.2m) cable) or another 

coupler cable.

Step 5.  Press Freq [SK Toggle] to select the highest transmitter frequency (200K).
Step 6.  Check the first cable in the group by clamping the coupler around the cable.
Step 7.  Press Gain [3] down and observe the numerical Signal Strength [9] ([8] for 

2550).

Step 8.  Remember the Signal Strength [9] ([8] for 2550 locator) value and continue by 

clamping the coupler around the next cable in the group.

 

− If the Signal Strength [9] ([8] for 2550 locator) is greater than the previous 

observation, press Gain [3] down.

 

− If the Signal Strength [9] ([8] for 2550 locator) is less than before, ignore it.

 

− After checking all the cables in the group, the cable with the highest Signal 

Strength [9] ([8] for 2550 locator) reading is the target cable.

Menu/OK [5:Toggle to MAIN MENU] + >>More [SK:4] + 

 [SK:7]

The help display contains basic information about the unit and its operation. It is 

designed to be a quick reference guide.
•  Press the double up/down arrows [SK] to navigate between sections.

 

− The single up/down arrows [SK] will scroll the display line by line.