Manual

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found. This makes it easy to detect an active ISDN UK0 line in e.g. distribu-
tion boxes.
Aashlightfunctionwithpurewhitelightguaranteesclearcolorrecognition
ofthewiremarkingsindarkdistributionboxes.Theashlightautomatically
turns on when the device is turned on and deactivates automatically when it
isturnedo󰀨.
ThetesttipoftheProbeismadeofber-reinforcedplasticwithabayonet
lock for easy replacement on site without opening the device. For replace-
ments see data sheet.
At the lower end of the Probe there is a connection socket for an earphone
(3.5 mm jack), with which signals from greater distances (up to 150 cm) can
still be easily tracked.
The Probe is switched on and is used by pressing and holding the HIGH or
LOWbuttons.TheHIGHpositionisthemostsensitivelevelforndingweak
signals. In the LOW position, the found wire pair or cable is specied for
example.
Symbols on the Device:
Warning concerning a point of danger (attention, observe documentation!)
European conformity marking
The device may not be disposed of with household trash, see page 37.
Tone Sender: ET300/ ET400/ ET500/ET720/ET800
The ET is a tone sender which is connected to the end of the cable/line/wire/
wire/wire pair that is to be searched/tested (connectivity depends on product).
Voltage resistance in case of accidental connection to external voltage:
ET300 /ET400/ET720/ ET800: 120 V AC
ET500: 350 V AC
Switching on
AfterpressingtheON/OFFkey,atoneisaudibletoconrmpower-up(ET720/
ET800only)andtheALTandSOLIDLEDslightupbriey.Forallotherver-
sions, depending on the position of the three-stage slide switch, the following
LEDsareusedasswitch-oninformation:TONEmode=ALTLEDashes,
DATA mode = DATA LED lights up in a dim green, CONT mode = CONT LED
ashesbriey.
Switchingo󰀨