Operating instructions
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Chemnitzer Straße 11 09217 Burgstädt
Satelliten- und Kabelfernsehanlagen/Industrievertretung GmbH
SAT Kabel
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®
IRM 20
Pulse reflectometer
Страница 1: ...Operating instructions Chemnitzer Straße 11 09217 Burgstädt Satelliten und Kabelfernsehanlagen Industrievertretung GmbH SAT Kabel IRM 20 Pulse reflectometer ...
Страница 2: ...use If you have questions about this instrument or suggestions for further improvements please get in touch with us This instruction has been performed to the best of our knowledge Developments and technical amendments are subject to change without notice Topical made operating instructions in a PDF format can also downloaded from our Internet homepage www sat kabel de 2017 SAT Kabel GmbH ...
Страница 3: ...the invoice to a customer by a monteur It also can be very helpful in networking to check the segment length of a network In addition it helps in localization of damages on cables The distance to the defective point is displayed immediately and whether it is a short circuit or a cut The IRM 20 can measure all usual 2 core wires no matter if it are coaxial cables or normal installation cables Excep...
Страница 4: ... has a persistent memory with 20 predefined cable types and their corresponding velocity factors These can be modified 3 Functional principle 3 Operation 3 1 Switch on off 3 2 Measuring Press the key briefly Press the key for 2 seconds Press the key briefly again BATTERY INDICATOR IRM 20 operate IRM 20 switched of Without any key pressed the IRM 20 turns off automatically after 2 minutes to save b...
Страница 5: ...esponds to the wave impedance of the cable a length measurement is not possible the send pulse will not be reflected at the cable end to minimize measuring errors determine the cable from both ends The velocity factor declares the propagation of electrical signals in the cable in relation to the speed of light It affects the accuracy of the measurement significant The velocity factor is in general...
Страница 6: ...y Therefor connect a cable with a known length 50 to 100 meter at the IRM 20 After that modify the velocity factor until the displayed length matches the length of the cable Maximal cable length 1000 m low loss cable Resolution 1 m Accuracy 1 2 m Measuring connection 4 mm banana jack 75 ohms Output pulse 4 V Rechteck 30 kHz Display LCD 2 8 Zeichen illuminated Casing dimensions 120 mm 60 mm 25 mm W...
Страница 7: ...usings bags connecting cables this guarantee is valid for 6 month from the purchasing date The guarantee claim expires at matings by the purchaser or third persons At defects caused by improper handling or operating by wrong installation or store by improper connection or mounting no guarantee is granted For not justified demand of our service we charge for our service the usual payment for materi...
Страница 8: ...Telefon 49 0 3724 6665 0 Telefax 49 0 3724 6665 44 info sat kabel de www sat kabel de Irrtümer sowie Änderungen im Zuge technischer Weiterentwicklung vorbehalten 2017 04 07 SAT Kabel ...
