R&S RT-ZH11 Manual
Contents
1. Root mean square vs Peak Pulse Voltage RT ZH11 Measurement Category 8000 7000 6000 5000 4 4000 3000 Peak Pulse Voltage V 2000 1000 4 0 T T T T 0 200 400 600 800 1000 AC root mean square voltage or DC V Maximum Pulse Derating RT ZH11 Measurement Category I Duty Cycle 6000 ooo ooo Ee ce ee es ee eM 10 5500 t 10 __ rae 5000 y PNG 4500 x i t 4000 x y 3500 LEAL 728 3000 N 2500 u r 100 __ 2000 50 O 1500 y 1000 Maximum Peak Pulse Voltage V N cy BS si 1 10 100 1000 Pulse Duration ms Values at 10 ms also apply to all Pulse Durations smaller than 10 ms Specifications R amp S RT ZH11 Input Impedance Typical input impedance RT ZH11 Note that the input impedance of the probe decreases as the frequency of the applied signal increases Z Ohm 10 100 1K 10K 100K 1M 10M 100M 1G Mechanical Characteristics Frequency Hz Weight probe 67g Cable Length 2m Probe Tip Diameter 5 mm Environmental Specifications Altitude operating up to 2000 m non operating up to 15000 m Temperature Range operating 0 C to 50 C non operating 40 C to 71 C Maximum Relative Humidity operating 80 relative humidity for2. installation Examples Measurements on distribution boards circuit breakers wiring including cables bus bars junction boxes switches socket outlets in the fixed installation and equipment for industrial use like for example stationary motors with per manent connection to the fixed installation Measurement Category IV Definition Measurement category IV is for measurements CAT IV performed at the source of the low voltage installation Examples Electricity meters and measurements on primary over current protection devices and and ripple control units IEC Pollution Degrees R amp S RT ZH11 Definitions Clause 3 5 6 Pollution Degree 1 No POLLUTION or only dry non conductive POLLUTION NOTE The POLLUTION has no influence Pollution Degree 2 Only non conductive POLLUTION Occasionally however a temporary conductivity caused by condensation must be accepted Pollution Degree 3 Conductive POLLUTION occurs or dry non conductive POLLUTION occurs which becomes conductive due to condensation which is to be expected IEC Safety Symbols The following symbols may appear on the product or in this instruction manual Caution risk of danger Refer to manual Caution risk of electric shock Earth ground TERMINAL gt gt Safety Information R amp S RT ZH11 To avoid personal injury and to prevent fire or damage to this product or products connected to it review and comply with the following safety precaut
3. Manual BH Zz 400 MHz Passive High Voltage Probe R amp S RT ZH11 1409 7737 02 Printed in Germany ROHDE amp SCHWARZ Test and Measurment Manufacturer R amp S RT ZH11 ROHDE amp SCHWARZ For comprehensive information about Rohde and Schwarz please visit our homepage on the R amp S Internet http www rohde schwarz com For queries regarding technical aspects of our products please contact our support at http www customersupport rohde schwarz com For international services please contact our service partners at http www service rohde schwarz com For additional questions please contact our headquarters in Munich ROHDE amp SCHWARZ GmbH amp Co KG MihldorfstraBe 15 D 81671 Miinchen Phone 9 89 41 29 0 Fax 49 89 41 29 12 164 Declaration of Conformity R amp S RT ZH11 EC conformity marking The manufacturer declares the conformity of this product with the actual required safety standards in accordance with the Low Voltage Directive LVD 2006 95 EC CEI IEC 61010 031 2008 Safety requirements for electrical equipment for measurement control and laboratory use Part 031 Safety requirements for hand held probe assemblies for electrical measurement and test WEEE RoHS Directives EC conformity marking ail This electronic product is classified within the WEEE RoHS category list as monitoring and control equipment category 9 Category 9 products are
4. ZH11 Specifications that are not defined to be warranted are typical and are published as general information to the user The instrument must have warmed up for at least 20 minutes and the environmental conditions must not exceed the probe s specified limits Electrical Specifications Attenuation Ratio 1000 1 2 atDC warranted Voltage Coefficient 0 0005 V System Bandwidth 400 MHz 3 dB Probe Risetime 900 ps 10 90 Input Resistance System 50 MQ 1 warranted Input Capacitance System 7 5 pF Maximum Rated Input Voltage 2 Measurement category I 1000 V root mean square 4000 V transient overvoltage Measurement category II 1000 V root mean square CAT II Compensation Range 5 pF 20 pF Input Coupling of the Measuring Instrument 1 MQ AC DC Pollution Degree 2 2 Typical voltage derating RT ZH11 Measurement Category I Voltage Derating 1200 2 5 1000 a s 800 Note that the max input voltage g 600 rating of the probe decreases as g 400 the frequency of the applied 3 200 signal increases 0 100K 1M 10M 100M 1G Frequency Hz 1 Connected to appropriate R amp S oscilloscope See R amp S oscilloscope operating manual for further details 2 As defined in IEC 61010 031 Also see definitions explained on page 4 and 5 Specifications R amp S RT ZH11 Maximum Pulse Ratings For pulse measurments make sure to comply with the ratings as shown on this page
5. er 5 0 L Insulating Cap 5 0 L black Protection Cap 5 0 L black Coding Rings set 3x4 Colors Ground Lead 22 cm Ground Lead 22 cm to 4 mm banana plug Safety Alligator Clip black Safety Alligator Clip red Solid Tip 0 8 mm Spring Tip 0 8 mm 52 Sprung Hook 5 0 L red 2 Flexible Adapter 5 0 L to 4 mm safety banana plug 1 Q a Ae eeNRPRe eee Hee 1 plugged on probe 2 one is installed in probe Use ground lead only for connections to earth ground The BNC Adapter is rated 100 V root mean square CAT II Pollution Degree 1 The accessories provided with the probe have been safety tested Do not use any other accessories than those originally provided 13 Handlin R amp S RT ZH11 Handle with care especially when fitted with the extra thin and sharp spring contact tip to avoid any injury Note that the probe cable is a sensitive part of the probe Do not damage through excessive bending or pulling Avoid mechanical shock to this product in general to guarantee accurate performance and protection Maintenance Cleaning To clean the exterior of the probe use a soft cloth moistened with either distillated water or isopropyl alcohol Before use allow the probe to dry completely Changing the Probe Tip To change the probe tip use pliers to grip and pull it carefully straight out of its contact socket along the axis of the probe Do not grip the white plastic insulator or the housing with pliers because the
6. exempted from the restrictions under the scope of the RoHS directive Your help and efforts are required to protect and keep clean our environment Therefore return this electronic product at the end of its life either to the manufacturer or take care of separate WEEE collection and professional WEEE treatment yourself Do not dispose as unsorted municipal waste EC Directives WEEE Directive 2002 96 EC Waste Electrical and Electronic Equipment RoHS Directive 2002 95 EC Restriction of the use of certain Hazardous Substances in Electrical and Electronic Equipment IEC Measurement Categories R amp S RT ZH11 Definitions and Examples Clause 6 5 2 Measurement Category I Definition Measurement category I is for measurements performed on circuits not directly connected to a mains supply Examples Measurements in circuits not derived from a mains supply and specially protected internal circuits derived from a mains supply In the latter case transient stresses are variable for that reason it is required that the transient withstand capability of the equipment is made known to the user Measurement Category II Definition Measurement category II is for measurements performed CAT IL on circuits directly connected to the low voltage installation Examples Household appliances portable tools and similar equipment Measurement Category III Definition Measurement category III is for measurements CAT MI performed in the building
7. ions Be aware that if you use this probe assembly in a manner not specified the protection this product provides may be impaired Only qualified personnel should use this probe assembly Use only grounded instruments Do not connect the probe ground lead to a potential other than earth ground Always make sure the probe and the measurement instrument are grounded properly Connect and disconnect properly Connect the probe output to the measurement instrument and connect the ground lead to earth ground before connecting the probe to the circuit under test Disconnect the probe input and the probe ground lead from the circuit under test before disconnecting the probe from the measurement instrument Observe probe and probe accessory ratings Do not apply any electrical potential to the probe input which exceeds the maximum ratings of the probe or the accessories connected to it In a combination always the lower rating measurement category applies to both probe and accessories connected to it Make sure to comply with the voltage versus frequency derating curve on page 8 Keep away from live circuits Avoid open circuitry Do not touch connections or components when power is present Do not operate with suspected failures Refer to qualified service personnel Indoor use only Do not operate in wet damp environment Keep product surfaces dry and clean Do not operate the product in an explosive atmosphere Specifications R amp S RT
8. nces in input characteristics to the oscilloscope that was used for factory adjustment We recommend to use the following equiment for proper HF compensation Rectangular wave generator with a risetime faster than 700 ps with an amplitude of 50 Vpp minimum 50 Ohm feed through and probe BNC adapter HF adjustment is performed by connecting the probe to the rectangular a wave generator Adjust trimmers for optimum square wave response DC Adjustment optimum In order to provide highest accuracy over the voltage range this probe s DC dividing ratio is factory adjusted at 500 V using a measuring device with a precision input impedance of IMQ 0 01 LF Compensation DC HF Compensation 11 Probe Accessor R amp S RT ZH11 Solid Tip 0 8 mm Spring Tip 0 8 mm a Ground Lead 22 cm BNC Adapter 5 0 L 5 peo Insulating Cap 5 0 L black Ground Lead 22 cm E2 Sprung Hook 5 0 L to 4 mm banana plug Protection Cap 5 0 L black 2 Flexible Adapter 5 0 L to 4 mm safety banana plug Safety Alligator Clip Safety Alligator Clip black 12 Scope of Delivery R amp S RT ZH11 The following items are included in the scope of delivery Please check the delivery for completeness RT ZH11 gt P 400 MHz passive high voltage probe Order No 1409 7737 02 Item Probe RT ZH11 Operating Manual Adjustment Tool BNC Adapt
9. temperatures up to 31 C decreasing linearly to 40 at 50 C Adjustment Procedures R amp S RT ZH11 The probe can be adjusted for low frequency LF compensation and for high frequency HF compensation and DC dividing ratio LF Compensation LF needs to be adjusted when the probe is connected to the oscilloscope input for the first time LF compen sation matches the probes cable capacitance to the oscilloscope input capacitance This matching assures good amplitude accuracy from DC to upper bandwidth limit frequencies A poorly compensated probe clearly influ ences the overall system performance probe scope and introduces measurement errors resulting in inaccurate readings and distorted waveforms We recommend to use a square wave or rectangular wave generator with an amplitude of 50 Vpp minimum When using a generator with smaller amplitude it may be useful to choose RF Reject in the trigger settings Adjust the LF compensation trimmer to optimum square wave response For clarification see below figures undercompensated optimum overcompensated LF Compensation 10 Adjustment Procedures R amp S RT ZH11 HF Compensation It is typically not necessary to adjust HF compensation unless the probe is being used with an oscilloscope having large differe
10. tip could be squeezed and cannot be removed and respectively the probe could be damaged If the probe tip is removed the new tip can be inserted with pliers into the contact socket along the axis of the probe In order to insert the probe tip completely into the housing press the probe tip against a hard surface carefully Use pliers to grip and pull the probe tip carefully out Do not grip the white plastic insulator or the probe of its contact socket housing with pliers 14 This page is reserved R amp S RT ZH11 15 Copyright 2011 ROHDE amp SCHWARZ All rights reserved Information in this publication supersedes that in all previously published material Specifications are subject to change without notice M RT ZH11 Revision A Juli 2011
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