78-8130-6151-8 Rev G
9
D. Service and Accessories
Information regarding service, accessories, or replacement parts can be obtained by
contacting your local 3M Sales Office or 3M Sales Representative.
This equipment does not require annual calibration or maintenance.
E. 3M™ Dynatel™ Advanced Locator 2250 Transmitter Keypad and
Connector Definitions
Trace
Output Level
Dynatel
TM
2250
+
-
o
off
on
T-1
T-2
T-3
T-4
T-5
T-7
[T-1] off:
Turns unit off and performs battery test.
[T-2] on: Ohm-meter / Tone:
Turns the unit on and cycles through the following
commands when pressed repeatedly.
Ohm-meter:
Measures the continuity of the trace conductor/pipe and its far-end
ground. It is also used to measure the fault resistance to earth.
Tone:
In the tone mode, the transmitter generates 577 Hz and 133 kHz signals.
[T-3] on: Trace (frequency):
Turns the unit on and places the unit in Trace mode.
Select Frequency:
Press Trace [T-3] repeatedly to cycle through the transmitter’s
active frequencies (577 Hz, 8 kHz, 33 kHz, and 133 kHz). The selected frequency
will be displayed [T-4]. ‘ALL' indicates that the following active frequencies are
transmitting simultaneously: 577 Hz, 8 kHz, 33 kHz, and 133 kHz.
[T-4] Digital Display:
Indicator Flags:
These flags coincide with the operational mode of the transmitter.
(From top left to bottom right) Trace mode [T-3], Tone mode [T-2], Ohm-meter
[T-2], Voltage (at start up the transmitter checks for foreign voltage), and the
Output Level Flag (no flag = normal output; flag = high output; flashing flag =
maximum output).
Digital Display:
Indicates frequency, relative current, resistance, battery level and
voltage (if present on target).
[T-5] Output Level:
Cycles output level; normal, high and maximum.
Normal=No Flag; High=Flag; Maximum=Flashing Flag, (indicated in
Digital Display
[T-4])
NOTE: An external 12-volt power source is required to obtain Maximum Output level
(12 watts for 12-watt transmitters and 5 watts for 5-watt transmitters).
[T-6] Output Jack:
Port for direct connect cables or 3M Dyna-coupler.