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78-8130-6150-0-F 11

NOTE: 12 Watt Output Level varies by frequency. Output is limited to 10 watts at

33 kHz and 1 watt at 200 kHz using the direct connection method.

[T-6] Output Jack: PortfordirectconnectcablesorDyna-coupler.

[T-7]External Jack: Porttoconnectcigarettelighteradaptercable,orrechargeable

battery(2200RB).Inputvoltagelevel:9-18VDC.(Onlyon5-wattand12-watt

transmitters.)

F. 2273 Transmitter Keypad and Connector Definitions

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 / Fault Locate / 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.

Fault Locate: (2273Munitsonly)Inthismode,thetransmittersendstwoalternating

locatingfrequencies(577Hzand33kHz)aswellasfaultsignals10and20Hz.

Tone: Inthetonemode,thetransmittergenerates577Hzand200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200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200kHz.

[T-4] Digital Display:

Indicator Flags: Theseflagscoincidewiththeoperationalmodeofthetransmitter.

(Fromtoplefttobottomright)Faultmode[T-2](2273unitsonly),Tonemode[T-2],

Tracemode[T-3],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 Max Output level (12

watts for 12-watt transmitters and 5 watts for 5-watt transmitters).

3M Dynatel 2250M User Manual

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