3M 2250M-iD User Manual

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 14 
78-8130-6150-0 Rev G
[15] Earphone Jack: Will fit standard 1/8" (3.175 mm) mini-jack mono earphone plug 
(not included).
J. 3M
 Dynatel
™ 
Receiver 2273M Key Pad and Display Definitions
Access panel on 
bottom side of 
Receiver under 
rubber cover.
[1] On/Off (Power): Turns unit on and off.
[2] Speaker Volume Control: Adjusts the volume of the receiver (off, low, med, high, 
and Xpand).
[2A] Speaker Volume Icon: Indicates the relative volume level of the receiver. When 
the third ring is dotted and ‘xpnd' appears below the speaker icon, the receiver is in 
“Expander” mode. This mode is used to pinpoint the target cable or pipe.
[3] Contrast: The arrows located above and below the contrast icon will adjust the 
contrast of the display.
[4] Gain Adjust: Adjusts the sensitivity of the receiver either up or down to maintain a 
satisfactory signal level.
[5] Locate/OK: Sets the receiver to trace mode for locating Cable/Pipe, Markers (for 
iD units only), Fault Finding, Tone. Tone/Ext is used to activate the External Jack [14]. 
Acknowledges setup entries (OK).
[6] Menu: Displays setup screen for configuration of the unit, i.e.: clock, language, 
depth units, marker data and frequencies.
[7] Backlight: Toggles the backlight low, high, and off.
[8] Battery Icon: Indicates battery level.
[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.
[9] Soft Key Commands: Definitions for each of the four soft key functions. 
[10] Signal Strength: Digital reading of the signal that the receiver is detecting from the 
target.
[11] Bar Graph: Graphical representation of the received signal.
[12] Gain Level: Displays relative gain level.