3M 2220M Benutzerhandbuch

5

Receiver Overview

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1.. .Volume Control –.Adjusts.the.volume.of.the.receiver.through.three.levels.of.

audio.and.off.

2.. Power Key –.Powers.the.receiver.on.and.off.
3.. .Peak Key –.Toggles.between.Directional.Peak.and.Single.Peak.antenna.

configuration.

4.. .Line Locate Key –.Places.the.Receiver.in.Pipe/Cable.locating.mode.and.

selects.frequency..When.toggled,.it.will.cycle.between.8.kHz,.82.kHz,.and.
60.Hz.(Power.Mode)..(More.frequencies.are.available.in.setup.mode).

5..  Sonde Locate Key –.Places.the.receiver.in.sonde.locate.mode.and.selects.

sonde.frequency..When.toggled,.it.will.cycle.between.512.Hz.and.33.kHz..
More.frequencies.are.available.in.setup.mode.

6.. .Gain Adjust –.Adjusts.the.sensitivity.of.the.receiver.either.up.(+).or.down.

(-).to.maintain.a.satisfactory.audio.and.bar.graph.response.

7.. Depth Key –.Displays.depth.to.target.pipe/cable/sonde.
8.. .Setup Key –.Configure.receiver.depth.units,.enable/disable.line.and.sonde.

frequencies,.select.50/60.Hz.power.frequencies.

9.. .Bulb Key –.Turns.the.display.backlight.on.and.off.