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78-8130-6150-0 Rev G 13
I. 3M
™
Dynatel
™
Receiver 2250M Key Pad and Display Definitions
™
Spkr/Xpnd
On/Off
Gain Adjust
Menu
Locate
Dynatel
2250M Cable/Pipe Locator
OK
8 2A
3
1 6
2 5
SK
9
7
12
11
10
4
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), Tone. Tone/Ext is used to activate the External Jack [13]. 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.
[l3] External Jack: Port to connect cables from external devices such as the earth frame
(A-Frame), a second 3M Dyna-Coupler, or a toning coil.
[14] Serial Port: RS232 port to connect the receiver to a PC via serial cable or USB-to-
serial adapter cable.