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Contents 

 

 

232 - V 3.11.4 

1

 

Contents 

 

 Contents  

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1

 

 

Chapter 1 

Notes on use and safety ----------------------------------------------------------------------- 2

 

  

1.1

 

Notes on use ------------------------------------------------------------------------------------- 2

 

  

1.2

 

Safety ---------------------------------------------------------------------------------------------- 2

 

 Chapter 

 

Technical data------------------------------------------------------------------------------------ 3

 

 Chapter 

 

Startup 

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4

 

  

3.1

 

Technical description --------------------------------------------------------------------------- 4

 

  

3.1.1

 

Basics of pulse reflectometry ----------------------------------------------------------------- 4

 

  

3.1.2

 

Measuring principle ----------------------------------------------------------------------------- 4

 

  

3.2

 

Operation ------------------------------------------------------------------------------------------ 5

 

  

Appendix 

Cable types --------------------------------------------------------------------------------------- 8

 

Summary of Contents for IRM 232

Page 1: ...hapter 1 Notes on use and safety 2 1 1 Notes on use 2 1 2 Safety 2 Chapter 2 Technical data 3 Chapter 3 Startup 4 3 1 Technical description 4 3 1 1 Basics of pulse reflectometry 4 3 1 2 Measuring principle 4 3 2 Operation 5 Appendix Cable types 8 ...

Page 2: ... danger the user must observe the instructions and warnings contained in this operator manual Before adjustment maintenance repair or replacement of parts requiring the instrument to be opened you must disconnect it from all voltage sources Should adjustment maintenance or repair of the opened instrument subsequently require application of voltage this may only be performed by a specialist who is ...

Page 3: ...s Dynamic range 44dB vertically in amplitude Sensitivity 70dB Digital filter Can be activated to suppress interference of external voltage on the cable Impedance 75Ohm Measurement connector IEC socket 75Ohm Measurement pulse output 4 Volt needle pulse of 5ns 20ns or 100ns pulse width POWER SUPPLY Power supply NIMH 6V 700mAh or power supply 12 to 24 Vdc or Vac Current drain 80mA Operation max 8 h C...

Page 4: ...dar system in which the transmitted signal represents a very fast jump function and the reflecting signal can be observed on its display The faster the rise of the measurement pulse the better is the resolution time equals distance The amplitude is in direct relation to the impedance meaning that measurement of matching is possible The pulse reflectometer method is thus suitable for measuring all ...

Page 5: ...ement range is automatic when the cursor crosses a band limit SELECTING VARIOUS SETTINGS LENGTH RANGE RESOLUTION OUTPUT PULSE WIDTH DIGITAL FILTER MEMORY LOCATION SHORTENING FACTOR Press and hold key 3 0 5 seconds until the symbol required is highlighted Press keys 1 and 2 to change the value selected Press keys 1 and 3 simultaneously to permanently save the width of the output pulse and the short...

Page 6: ...sor is placed at the impulse start Storage of this with pressing key 1 and 3 at the same time Back to initial state with key 3 SAVING THE SETTINGS Press keys 1 and 3 simultaneously to save the settings preselected in the display They are then available when the instrument is switched on LOW BATTERY WARNING AND SHUTDOWN If the battery voltage drops to 5 9 V the voltage is shown flashing at the top ...

Page 7: ...rmined from the pulse echos If a wide output pulse is used for measurement the pulse echos are more pronounced Defective branches and splitters then produce stronger pulse echos SHORTENING FACTOR Coaxial cable with PE dielektric 0 66 Coaxial cable with foam PE 0 82 0 78 0 95 Stripline with foam insulation 0 83 Coaxial cable with air insulation 0 9 0 88 0 92 Electric cable 0 49 0 57 ca 0 53 Attenti...

Page 8: ...7 75100 AKZ 3 5 RG6 1 00 mm 4 60 mm CPE 0 85 4 4 dB P8 LCD 95 DIGITAL 94 1 13 mm 4 80 mm CPE 0 85 4 3 dB P9 COAX 6 LG 1 70 mm 6 95 mm CPE 0 89 2 3 dB P10 LCM 14 MK 15 KOKA 7 1 63 mm 7 20 mm CPE 0 84 2 8 dB P11 TELASS B1 1 7 3 1 10 mm 7 25 mm PE 0 66 3 8 dB P12 PRG 11 1 55 mm 7 25 mm CPE 0 81 2 7 dB P13 1 ikx 1 1 7 3 KOKA 741 1 10 mm 7 30 mm PE 0 66 3 3 dB P14 1 nkx 2 20 mm 8 80 mm PEH 0 88 1 8 dB ...

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