3M 2550 Manuale Utente

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78-9000-0192-2 Rev C 
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[15] Serial Port: RS232 port to connect the receiver to a PC via serial cable or USB-to-
Serial Adapter cable.
[16] Earphone Jack: Will fit standard 1/8 inch (3.175 mm) mini-jack mono earphone 
plug (not included).
J. 2573 Receiver Keypad and Display Definitions
[11]
[12]
[13]
[14]
[1]
[10]
[9]
[8]
[7]
[6]
[5]
[SK]
[2]
[3]
[4]
 Access panel on 
 bottom side of 
 Receiver
[1] On/Off (Power): Turns unit on and off.
[2] TRACE (Locate) MODE: Toggles between Cable View locate mode and the four 
other locate modes (cycles through available modes via the Mode soft key when in the 
Cable/Pipe Locate display.
[3] GAIN: Adjusts the sensitivity of the receiver either up (+) or down (-) to maintain a 
satisfactory signal level.
[4] DEPTH: Measures depth of target.
[5] Menu / OK: Sets the receiver to trace mode for locating cable or pipe and displays 
Locate options, 3M iD Marker templates and writing mode options, setup screens for 
configuration of the unit, i.e.: clock, language, depth units, marker data and frequencies, 
COM settings and Help files. Also acknowledges setup entries (OK).
[SK] Soft Keys: There are four soft keys (yellow keys) on the receiver. The function 
of each key is shown above the yellow key on the display screen. The functions will 
change, depending on the operation mode of the receiver. For instruction purposes in this 
manual, the display command is followed by [SK] to identify it as a soft key.
[6] BULB: Toggles the display backlight low, high, and off.
[7] Gain Level: Displays relative gain level.
[8] Fault Finding Direction Indicators: Corresponds to the Earth Contact Frame 
(A-Frame) probe (leg) colors.
[9] Signal Strength: Digital reading of the signal strength that the receiver is detecting 
from the target.
[10] Speaker Volume Icon: Indicates the relative volume level of the receiver. When the 
third ring is dotted and ‘xpnd' appears below the speaker volume icon, the receiver is in 
“Expander” mode. This mode is used to pinpoint the target cable or pipe.
[11] Bar Graph: Graphical representation of the received signal.