3
Dynatel
™
Advanced Cable Locator 2250
Quickly and Accurately Identify Underground Assets
PinPoint exact cable Path and dePth
quickly and easily with this lightweight,
easy-to-handle unit
The 3M™ Dynatel™ Advanced Cable Locator 2250 is a micro-
processor-based system that incorporates advanced digital signal
processing techniques to quickly and efficiently trace the path of
underground cables, both copper and fiber optic (with metallic
trace wire). Lightweight, compact and well-balanced, the locator
accurately:
• Locates cable path
• Measures cable or sonde depth with the push of a button
• Measures signal current in the cable
• Identifies cable using toning function
• Locates energized power cable with direct readout of cable depth
The 2250 cable locator provides accurate cable or sonde depth
measurements, giving a digital readout in inches, feet and inches, or
centimeters (user-selectable).
Additionally, when used in conjunction with the 3M™ Dynatel™ EMS
Marker Locating Accessory 2205/2206, the locator can:
• Pinpoint the exact location of buried EMS markers
• Trace a cable path while simultaneously finding buried markers
along the way
Four modes oF oPeration For accurate
locates, even in congested areas
For cable path locating, the 2250 receiver uses one of four user-
selected locating modes – dual peak, dual null, differential or special
peak (which increases the sensitivity of the receiver for tracing over
longer distances). The mode is selected depending on which is most
effective under the locating conditions.
The 3M™ Dynatel™ Cable Locator 2250 can
be used with the Dynatel 2205/2206 EMS
Marker Locating Accessory.
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The receiver includes four volume settings, including a special “expander”
function that makes peaks and nulls more pronounced. The expander
feature enhances the amplitude difference between two conductors
carrying the same signal, making the unit extremely accurate, even in
congested areas. A headphone jack is also included.
a simPle, easy-to-use system
The 3M™ Dynatel™ Advanced Cable Locator 2250 is easy to operate and
requires very little training. Digital liquid crystal display (LCD) readout and
push-button operation make the unit easy to understand, for more precise
locates. A “memory” feature remembers operator set-up from previous
use.
The system consists of two basic components:
• Transmitter with built-in ohmmeter, which also senses and measures the
presence of foreign voltage, and tests the continuity of the circuit.
• One-piece hand-held receiver with bar graph that indicates received signal
and proximity to the cable.
The 2250 cable locator uses four active trace frequencies — 577 Hz, 8 kHz,
33 kHz and 200 kHz — which can be used individually or simultaneously
to compensate for varying field conditions. The receiver incorporates
passive power and auxiliary frequencies that do not require the use of the
transmitter.
Both the receiver and the transmitter feature a self-test routine which is
executed each time the unit is turned on. A power-up battery test indicates
battery level.
Both components are constructed of heavy-duty materials designed to
withstand typical field use.
3
3m
™
dynatel
™
advanced cable locator 2250
Features
transMitter
Four operator-selectable frequencies
Simultaneous signals
Built-in ohmmeter with voltage sensing/measuring capability
Three signal application methods (direct connect, coupler, induction)
Auto load (impedance) matching
High and normal output level
Displays output signal current in trace mode
Audible indication of hazardous voltage in ohms mode
Can connect to energized power cables up to 240 Vac
External DC operation (option ‘A’ only)
receiver
Peak and null modes
Differential mode
Push-button digital depth readout (of cable or sonde) in inches, feet and inches,
or centimeters
Measures signal current in cable
Visual and audible cable locates
Coupler jack
Graphic display
Expander function
Three passive 50/60 Hz frequency settings
31.5 kHz Auxiliary frequency
512 Hz, 560 Hz Auxiliary frequencies (some models)
Compatible with 2205/2206 marker locating accessory
Verify cable location
Indicates direction to cable
Easy, quick and accurate depth measurements; no conversion - table required for
sonde depth measurements
Helps identify target cable regardless of depth
Ensure accuracy under varying field conditions
Pair/cable identification
Operator can distinguish between target cable and other cables in congested areas
Improves sensitivity of audible and visual response
Optimized for primary, secondary, or rectified power
For locating CATV cables
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Detects frequencies from central office installed transmitters
Allows unit to pinpoint location of buried EMS markers
Optimizes unit performance in varying conditions
Enables receiver to verify cable location
Displays earth fault resistance; confirms far-end grounds and shield continuity
Flexibility under varying plant conditions
Automatic adjustment of output voltage to maximize signal
High output level for extreme distance locates and other varying cable conditions
Assists in proper frequency selection and setup
Warns operator of potentially dangerous situation
Prevents inadvertent damage to unit; operates while attached to live circuits
5 watt output capability; saves batteries
beneFits
3m™ dynatel™ standard accessories
Model
9012
8006
description
Direct-Connect Transmitter Cable; for direct connection to cable and ground; 5' (1.5 m) long
Ground Rod; stainless steel
40 ft. (12 m) Long Cigarette Lighter Adapter Cable (Option “A” only)
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3m™ dynatel™ oPtional accessories
Model
3019
1196
9043
9011
2200
2205/2206
2892
3229
2876
2200RB
description
Dyna-Coupler Kit; consists of 3'' Dyna-Coupler for use on cables up to 3" (7.6 cm), Coupler Extension Cable, and Pouch
6'' Dyna-Coupler; for use on cables up to 6.9" (17.5 cm) in diameter; with pouch
Ground Extension Cable
Coupler Extension Cable
Series Carrying Bag
EMS Marker Locating Accessory
Small Clip Direct-Connect Transmitter Cable, for direct connection to cable and ground; 10' (3m) long
Active Duct Probe, 33 kHz
Direct-Connect Transmitter Cable, 10' (3m) in length, for utility (U) models
Rechargeable Auxiliary Battery for 5-watt units
ordering inFormation
Generic product number: 2250-XYZ
Market
USA/Canada
USA/Canada (Option ‘A’)
TO Order, SPeCify The APPrOPriATe 3M™ dyNATel™ 2250 AdVANCed CAble lOCATOr USiNg The TAble belOw.
Example 2250 - X YZ
Code X
U3 (3-watt
transmitter
U5 (5-watt
transmitter
Typical Use
Telephone/CATV
Direct connect cable configuration
5-foot cable with telco-style
direct connection clips
10-foot cable with large alligator
direct connection clips
Code Y
T
Power
P
Coupler Kit
No coupler kit
3" coupler kit
Code Z
N
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Example: 2250-U5PN translates to a
2250 Cable Locator with 5-watt
transmitter for the USA/Canada
market, used by a power utility and
no coupler kit
Physical sPeciFications
size
Transmitter
Receiver
Weight
Transmitter
Receiver
Shipping
5.2 lbs. (2.4 kg)
4.1 lbs. (1.8 kg)
14.3 lbs. (6.5 kg)
6.75" H x 11.25" W x 7.75" D (17.2 cm x 28.6 cm x 19.7 cm)
25.5" H x 3.75" W x 10.75" D (64.8 cm x 9.5 cm x 27.3 cm)
environmental sPeciFications
Operating temperature
Storage temperature
Note
1
:
American NTSC, television set on
-4° to 122°F (-20° to 50°C)
-40° to 158°F (-40° to 70°C)
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