Type 5008 - Brüel & Kjær
Contents
1. N IEC 61000 6 3 Generic emission standard for residential commercial and light industrial environments EN IEC 61000 6 4 Generic emission standard for industrial environments CISPR 22 Radio disturbance characteristics of information technology equipment Class B Limits FCC Rules Part 15 Complies with the limits for a Class B digital device This ISM device complies with Canadian ICES 001 interference causing equipment standard EMC Immunity EN IEC61000 6 1 Generic standards Immunity for residential commercial and light industrial environments EN IEC 61326 Electrical equipment for measurement control and laboratory use EMC requirements Note The above is only guaranteed using accessories listed in this manual Temperature IEC 60068 2 1 8 IEC 60068 2 2 Environmental Testing Cold and Dry Heat Operating Temperature 15 to 35 C 59 to 959F Storage Temperature 25 to 70 C 13 to 158 F Humidity IEC 60068 2 78 Damp Heat 93 RH non condensing at 40 C 104 F Mechanical Non operating IEC 60068 2 6 Vibration 0 3 mm 20 ms 10 500 Hz IEC 60068 2 27 Shock 1000 ms IEC 60068 2 29 Bump 1000 bumps at 400 ms Enclosure IEC 60529 1989 Protection provided by enclosures IP 20 Br el amp Kj r reserves the right to change specifications and accessories without notice HEADQUARTERS Br el amp Kj r Sound amp Vibration Measurement A S DK 2850 N rum Denmark Teleph2. Technical Documentation Polarization Voltage Buffer Type 5008 User Manual zu Eed Bruel amp Kj r NY Polarization Voltage Buffer Type 5008 User Manual May 2013 Safety Considerations This apparatus has been designed and tested in accordance with IEC EN 61010 1 and ANSI UL61010 1 Safety Requirements for Electrical Equipment for Measurement Control and Laboratory Use This manual contains information and warnings which must be followed to ensure safe operation and to retain the apparatus in safe condition Special note should be made of the following Safety Symbols The apparatus will be marked with this symbol when it is important that you refer to the associated warning statements given in the manual Protective Earth Terminal A Hazardous Voltage Explosion Hazard The equipment is not designed to be used in potentially explosive environments It should not be operated in the presence of flammable liquids or gases Warnings e Switch off all power to equipment before connecting or disconnecting their digital interface Failure to do so could damage the equipment Whenever it is likely that the correct function or operating safety of the apparatus has been impaired it must be made inoperative and be secured against unintended operation Any adjustment maintenance and repair of the open apparatus under voltage must be avoided as far as possible and if unavoidable must be carried out only
3. by trained service personnel Do not dispose of electronic equipment or batteries as unsorted municipal waste tis your responsibility to contribute to a clean and healthy environment by using the appropriate local return and collection systems Hazardous substances in electronic equipment or batteries may have detrimental effects on the environment and human health The symbol shown to the left indicates that separate collection systems must be used for any discarded equipment or batteries marked with that symbol NEN Waste electrical and electronic equipment or batteries may be returned to your local Br el amp Kj r representative or to Br el amp Kj r Headquarters for disposal Copyright O 2013 Br el amp Kj r Sound amp Vibration Measurement A S All rights reserved No part of this publication may be reproduced or distributed in any form or by any means without prior written consent from Br el amp Kj r Sound amp Vibration Measurement A S N rum Denmark Contents CHAPTER 1 Deseriplion suut ee 1 1 1 Introduction to Polarization Voltage Buffer Type BOU 1 1 2 Sockets and Controls ne etr EHRE atar 2 CHAPTER 2 ie C eC M 5 2 1 Gonrectioris oet e A AA eee 5 2 2 le EEN 7 CHAPTER 3 Service ep 9 CHAPTER 4 Elle a 11 Chapter 1 Description 1 1 Introduction to Polarization Voltage Buffer Type 5008 1 1 1 Use Type 5008 is a h
4. eamplifier UA 1435 Adaptor DC Voltmeter 130155 2 2 Settings The reference voltage can be set to 0 V or to its built in high precision reference voltage of 200 V Use the V Ref switch on the front panel to set the reference voltage Type 5008 can measure voltages in the range of 10 V referred to the selected reference voltage 8 Polarization Voltage Buffer Type 5008 User Manual Chapter 3 Service and Repair Polarization Voltage Buffer Type 5008 is designed and constructed to provide many years of reliable operation However if a fault occurs that impairs its correct function and operating safety disconnect the Voltage Buffer immediately from its power source and remove it from your instrument setup to secure against unintended operation and the risk of further damage For repair contact your local Br el amp Kj r service representative Under no circumstances should repair be attempted by persons not qualified in servicing electronic instrumentation 10 Polarization Voltage Buffer Type 5008 User Manual Chapter 4 The following specifications are based on a 1 year calibration cycle an operating temperature of 18 to 28 C 64 to 82 F a relative humidity up to 90 a warm up time of 10 minutes operation in a controlled environment and length of signal cables less than 2 metres The specifications are for an estimated confidence level of not less than 9596 REFERENCE VOLTAGE SETTINGS 0 V
5. he centre pin of the output socket delivers a voltage of up to 210 VDC and the current is limited to 0 6 mA Fig 2 1 Connecting Type 5008 with a DC voltmeter when performing absolute measurements 5008 Polarization Voltage Buffer WL 1272 i Output Probe Cable ie ee Preamplifier UA 1435 Adaptor 200 1427 VDC DC Voltmeter 130154 2 1 2 Connections with Relative Measurements Please note that the use of this method requires that the DC voltmeter is floating in respect to the rest of the setup 1 Connect UA 1435 to the preamplifier or WJ 0365 to the 7 pin LEMO socket 2 Connect Probe Cable WL 1272 between the adaptor and the input of Type 5008 3 Connect the DC voltmeter to the output socket of Type 5008 a The low terminal of the DC voltmeter connects to the guard of the output socket b The high terminal of the DC voltmeter connects to the centre pin of the output socket See Fig 2 2 for connection diagram CHAPTER 2 Operation 7 Warning Hazardous live voltage The guard of the output socket delivers a voltage equivalent to the selected reference voltage For the built in 200 V reference voltage the current is limited to 0 6 mA The centre pin of the output socket delivers a voltage of up to 210 VDC and the current is limited to 0 6 mA Fig 2 2 Connecting Type 5008 with a DC voltmeter when performing relative measurements 5008 Polarization Voltage Buffer WL 1272 Probe Cable Pr
6. igh impedance differential DC buffer intended to act as a buffer for high impedance microphone polarization voltage allowing the microphone polarization voltage to be measured using a common DC voltmeter The polarization voltage can either be measured in a 7 pin preamplifier socket or directly at the input terminal of a preamplifier Fig 1 1 Configuration block a Input diagram Output 12V DC Supply 130150 2 Polarization Voltage Buffer Type 5008 User Manual The input stage of Type 5008 is made with a field effect transistor FET operational amplifier which has an extremely high input impedance and an ultra low input bias current The zero point of the plus and minus supply to the operational amplifier is connected to the reference voltage The built in 200 V reference voltage is made by a regulator that includes a low drift reference and a low drift operational amplifier with low drift resistors in the feedback loop The output of Type 5008 can be configured to deliver the absolute level of the measured voltage or the difference of the measured voltage from the reference voltage 1 1 2 Included Accessories e Probe Cable WL 1272 e BNC Adaptor UA 1435 e BNC to 7 pin LEMO Adaptor WJ 0365 e Power Supply Unit ZG 0864 1 2 Sockets and Controls 1 2 1 Front Panel Fig 1 2 Front panel of Type 5008 130151 1 Input socket A BNT socket for connecting the enclosed probe cable The input impedance is approxima
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8. or 200 V MEASUREMENT RANGE 10 V referred to the reference voltage BASIS ACCURACY 0 V Reference Setting 0 01 V 200 V Reference Setting 0 03 V INPUT IMPEDANCE Approximately 10180 INPUT BIAS CURRENT 0 2 pA Specifications OUTPUT IMPEDANCE OF GUARD IN THE INPUT CONNECTOR 220 ka OUTPUT IMPEDANCE OUTPUT CONNECTOR Centre Pin 0 1 O 1 5 mA Guard 2 kO 0 6 mA SUSCEPTIBILITY TO RADIATED ELECTRO MAGNETIC FIELDS AND TO CONDUCTED RF DISTURBANCES ON AC SUPPLY AND SIGNAL CABLES 50 mVp introduced to output 25 mVDC introduced to output DC POWER 12V0 2A DIMENSIONS Height 35 mm 1 48 in Width 110 mm 4 33 in Depth 145 mm 5 71 in WEIGHT 300 g 10 58 oz 12 Polarization Voltage Buffer Type 5008 User Manual Compliance with Standards CE mark indicates compliance with EMC Directive and Low Voltage Directive C Tick mark indicates compliance with the EMC requirements of Australia and New e Zealand C I China RoHS mark indicates compliance with administrative measures on the control of pollution caused by electronic information products according to the Ministry of Information Industries of the People s Republic of China Safety EN IEC 61010 1 Safety requirements for electrical equipment for measurement control and laboratory use ANSI UL 61010 1 Safety requirements for electrical equipment for measurement control and laboratory use EMC Emission E
9. pplied with Type 5008 e DC voltmeter UA 1435 is used to measure the polarization voltage of a 2 microphone preamplifier and WJ 0365 is used for measuring the polarization voltage in the 7 pin LEMO socket of a measuring instrument Connections The DC voltmeter can be connected in two ways depending on the purpose of the measurement Measuring the absolute voltage This method is recommended if a high precision DC voltmeter is used for the measurement Measuring the deviation of the polarization voltage from the reference voltage This method is recommended if a low precision DC voltmeter is used for the measurement See below for connection instructions according to the required method measurement type Connections with Absolute Measurements 1 Connect UA 1435 to the preamplifier or WJ 0365 to the 7 pin LEMO socket 2 Connect Probe Cable WL 1272 between the adaptor and the input of Type 5008 3 Connect the DC voltmeter to the output socket of Type 5008 a Thelow terminal of the DC voltmeter connects to the screen of the output socket 6 Polarization Voltage Buffer Type 5008 User Manual b The high terminal of the DC voltmeter connects to the centre pin of the output socket See Fig 2 1 for connection diagram Warning Hazardous live voltage The guard of the output socket delivers a voltage equivalent to the selected reference voltage For the built in 200 V reference voltage the current is limited to 0 6 mA T
10. tely 10050 CHAPTER 1 Description 3 Fig 1 3 Socket diagram Screen Guard Centre pin 130152 Warning Hazardous live voltage The guard of the input socket delivers a voltage equivalent to the polarization voltage tested through a 220 kO impedance This means that the voltage can be up to 210 V DC and the current is limited to approximately 1 mA 2 Ovl indicator A red LED that lights when the polarization voltage being tested exceeds the reference voltage by more than 10 VDC 3 On indicator A green LED that lights when power is connected to the instrument and the V Ref switch is set to anything other than Off 4 Output socket A BNT socket for connecting to a DC voltmeter see Fig 1 3 for diagram The voltmeter can be connected to the output socket in one of two ways a Connect the voltmeter s low terminal to the screen of the output socket and its high terminal to the centre pin of the output socket In this case the indication on the voltmeter will be the absolute value of the polarization voltage being tested This method is recommended if the accuracy of the voltmeter is higher than the accuracy of the reference voltage the accuracy of the built in 200 V reference voltage is approximately 0 015 b Connect the voltmeter s low terminal to the guard of the output socket and its high terminal to the centre pin of the output socket In this case the indication on the voltmeter will be the difference of the polariza
11. tion voltage being tested from the reference voltage This method is recommended if the accuracy of the voltmeter is lower than the accuracy of the reference voltage If this method is used to make sure that the low terminal of the voltmeter is not connected to the ground of the polarization voltage being tested Warning Hazardous live voltage The guard of the output socket delivers a voltage equivalent to the selected reference voltage For the built in 200 V reference voltage the current is limited to 0 6 mA The centre pin of the output socket delivers a voltage of up to 210 VDC and the current is limited to 0 6 mA 5 V Ref switch 3 position switch for selecting the reference voltage Off Switch off the instrument 0 V Set the reference voltage to zero volts 200 V Set the reference voltage to 200 volts 4 Polarization Voltage Buffer Type 5008 User Manual 1 2 2 Rear Panel Fig 1 4 Rear panel of Type 5008 130153 Power 12 V Socket for connection to an external DC power supply Power Supply Unit ZG 864 90 264 V is supplied Chapter 2 2 1 2 1 1 Operation To perform the measurement of a polarization voltage you need the following Polarization Voltage Buffer Type 5008 Adaptor for connection to a microphone preamplifier or directly to the measuring instrument The following adaptors are supplied with Type 5008 BNC Adaptor UA 1435 BNC to 7 pin LEMO Adaptor WJ 0365 e Probe Cable WL 1272 su
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