3M Dynatel 2250M - 2273 Transmitter Keypad and Connector Definitions

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).