CLT10 (Gendannet)
Contents
1. CLT10 Component Linearity Test Equipment e 10 kHz voltage up to 1000 V 4 VA e More than 30 components per second e Impedance range from below 1000 to more than 3 MO e Third harmonics below 160 dB e Non sensitive to hum e Fibre optical communication e Easy IEC 440 standard settings e IEEE 488 GPIB and RS232C interfaces e Programmable rejection limits e CE approved General The CLT10 Component Linearity Test Equipment is a further development of the well known CLT1 The equipment is used for reliability Insuring of passive electronic components The CLT10 determines the non linearity of all electronic component and takes this as an indicator of the reliability of the component In the CLT10 the third harmonic distortion is taken as a measure of the non linearity The measuring method offers a very high operational speed it is non sensitive to external fields it gives a high resolution it is non destructive and is therefore used for automatic 100 go no go production test of resistors and other components according to the IEC 440 Standard publication In the laboratory it is also used for reliability testing of materials For maximum EMI robustness and lowest possible residual non linearity the CLT 10 is divided into two separate units interconnected by fibre optical cables A Control Unit containing digital circuitry and a Measuring Unit containing analogue circuitry The use of optical cables2. When measuring on a batch of components which have the same nomi nal impedance value the third har monic value is found to be dis tributed around a mean value The distribution curve is usually a Gaus sian distribution curve as shown in Fig 3 A few components may however exhibit a higher distortion than that of the rest of the batch This may be due to small defects or to deviations in the ma terial composition Some components contain ma terials which have a high inherent distortion magnetic materials com position resistors high dielectric ca pacitors In these components the excessive distortion from small de fects is concealed in high inherent distortion and cannot readily be de tected At the other end of the scale there are metal film resistors in which the inher ent distortion is very low typi cally 130 dB or lower With these components defects cause distor tion which normally exceeds that of the rest of the batch significantly What makes the CLT20 Compo nent Linearity Test Equipment so unique is its ability to measure dis tortion as low as 160 dB below the level of the applied sine wave No other commercially available in strument can even come close to this in credible level of sensitivity and only with the CLT20 is it possible to detect fail ures in today s precision resistors Number of Components Abnormal High Distortion Fig 3 Typical Distribution of Distortion in a Component Batch S
3. 47 5 to 63 Hz 100 VA 178 mm 6 9 483 mm 19 0 442 mm 17 0 18 kg 40 Ibs 25 kg 55 Ibs Description CLT 10 Measuring Unit Service Manual Operator Manual Measuring cable Control Unit connector cable 1m Control Unit connector cable 5m Specifications for CLT20 CLT20 Component Linearity Tester Main Specification Generator frequency Voltmeter frequency Voltmeter bandwidth Measuring speed Accuracy Component Range General Range switching time Range switching life Low impedance range Imput impedance 3mQ 30 30 100 100 300W Input impedance Max power Max 10 kHz voltage RNL 0 25 VA High impedance range 300 W 3 kW Input impedance Transformation ratio Max power Max 10 kHz voltage RNL 0 25 VA 3 kW 30 kW Input impedance Transformation ratio Max power Max 10 kHz voltage RNL 0 25 VA 30 kW 3 MW Input impedance Transformation ratio Max power Max 10 kHz voltage RNL 0 25 VA 10kHz 2 Hz 30 kHz 400 or 75 Hz selectable Measuring cycle down to 10 ms excl handling Specifications are valid for 14 ms cycle with broad voltmeter bandwidth Test rate typically more than 30 compo nents per second 1 dB or 5 1 digit All passive impedances Primarily impedances CLT10 amp CLT20 lt 100W 3 MW CLT20 down to 10mW lt 500 ms 10 operations 10 Transformation ratio 31 6 1 Transformation ratio 31 6 1 Transfor
4. eliminates ground loops and cases the installation The residual non linearity is kept extremely low making it possible to measure third har monics down to 160 dB below the fundamental voltage The microprocessor based CLT10 Control Unit ensures top performance and makes the equipment very simple to operate and understand The IEEE 488 and RS232C remote interface controller ensures system integration at all levels The CLT 10 Component Linearity Test Equipment conforms to the international standards IEC 348 IEC 440 IEC 68 and RCF 2003 Applications The range of applications is very broad and includes e Productions testing Component development Acceptance testing Investigations of non linear components and materials Screening of audio grade components Background Defective components are not only unreliable they are also non linear due to the altered and unstable current density caused by the defects A measurements of the distortion generated in the component when a pure sine wave current flows through it evaluates the reliability due to the corre lation s between the non linearity and the reliability The non linearly taken as the ratio between the dominant third harmonic and the applied fundamental voltage is expressed in dB The non linearity is recognised as are liability parameter just as the noise index of the component A noise index measurement however is time consuming and therefore not suit
5. ed for 100 testing A component is classified as less reliable when its non linearity is significantly higher than the median non linearity of the batch in question In production testing a fixed rejection limit such as a non linearly between 90 to 130 dB is normally used Rejection of these dubious components im proves the total reliability of the batch The rejected components also enable the manufacturer to improve his production technique thereby gaining higher reliability and a superior product Component defects Typical defects of resistors causing non linearity Poor contact between lead and cap Poor contact between cap and resistor material Poor material quality such as film In homogeneous spots in material Defective spiralling Traces of film left in grooves Typical defects of capacitors causing non linearity e Poor Contact between electrode and terminal Contamination of dielectric such as iron oxide or iron particles in mica paper polystyrene etc Mechanical instability such as movements due to electrostatic forces Poor ceramic quality Longitudinal grooves in ceramic The defects have the introduction of non linearly in the component in common User friendly interface The CLT10 Control Unit has a built in table as defined in the IEC 440 recommended operating conditions The coloured numeric calculator buttons make it very easy to set up the equipment to measure any given impedance just by e
6. etup entries 99 measure ment storage IEEE bus setup incl force to local RS 232 serial setup All except mains power on off Measurement Unit Fiber Optic Link 2 Mbit s serial bi phase modulation 24 pole Champ SH1 AH1 T6 TEO L4 LEO SR1 RL1 PP1 DC1 DTO CO E2 Include IEC 440 publication setups extended to E192 stand ard series and 99 memory en tries RS232C Interface Connector type Baud rate Duplex Parity Stop bits Data bits General Temperature Operating temperature Storage temperature Relative humidity Line voltage Frequency Power consumption Dimensions and Weight Height for CU for CLT10 CLT20 Width Depth Net weight Shipping weight Ordering Information Accessories 983434 983437 933350 933350 Data subject to change 9 pole Sub D female 300 to 19200 Full Even odd or none 1or2 7or8 5 to 45 C 41 to 113 F 40 to 70 C 40 to 158 F 20 to 80 non condensing 90 to 130 V AC 200 to 260 V AC 47 5 to 63 Hz 20 VA 89 mm 3 5 483 mm 19 0 442 mm 17 5 kg 12 lbs 9 kg 20 Ibs Description CLT 20 Control Unit Service Manual Operator Manual Desktop 19 Rack Enclo sure for CLT10 CU and MU Desktop 19 Rack Enclo sure for CLT20 CU MU and LU
7. kW 130dB Zx 3 MW Guideline only depends on handling Inputs Outputs rear Type of connector Inputs Min 10 kHz level setting 10 kHz voltage off External trigger Outputs 10 kHz voltage 10 kHz current 30 kHz voltage Control Outputs Impedance range Accept go Reject high 8 low 10KHz voltage on Data Ready DRDY Measurement End ME Communication with Control Unit Type of connector Type of interface Safety Link Terminals front Measuring terminals General Temperature Operating temperature Storage temperature Relative humidity Line voltage Frequency Power consumption Dimensions and Weight Height Width Depth Net weight Shipping weight Ordering Information Code 391 081 Accessories 983 436 983 437 900 215 906 362 618 101 25 pole sub D female 0 to 10 V for 0 to 100 voltage output within range Contact closure Contact closure 0 to 10 V for 0 to 100 within actual range 0 to 10 V for 0 to 200 mA 0 to 10 V for 0 to 100 within actual range Open collector Open collector Open collector Open collector TTL compatible TTL compatible Fiber Optic Link 2 Mbit s serial bi phase modulation Contact closure Two binding posts accept stand ard size 4 mm banana plugs 5 to 45 C 41 to 113 F 40 to 70 C 40 to 158 F 20 to 80 non condensing 90 to 111 VAC 105 to 130 V AC 180 to 222 V AC 210 to 260 V AC
8. mation ratio 1 1 100W 2 0 2 VA Zx 10W 1VA Zx 50 W 4 VA Zx 200 W 36 Vrms 150 dB typical 160 dB 30 to 300W load 1 kW 2 1 1 3 VA 4 VA Zx 2 5 kW 100 Vrms 160dB 10 kW 2 1 10 1VA Zx 75 kW AVA Zx 725 kW 360 Vrms 150 dB typical 160 dB 100 kW 2 1 10 AVA Zx 250 kW 1VA Zx 1 MW 0 25VA Zx lt 3 MW 1000 Vrms 140dB typical 150 dB Zx 300 kW 130dB Zx 3 MW Guideline only depends on handling Data subject to change Inputs Outputs rear Type of connector Inputs Min 10 kHz level setting 10 kHz voltage off External trigger Outputs 10 kHz voltage 10 kHz current 30 kHz voltage Control Outputs Impedance range Accept go Reject high 8 low 10kHz voltage on Data Ready DRDY Measurement End ME Communication with Control Unit Type of connector Type of interface Safety Link Terminals front Measuring terminals General Temperature Operating temperature Storage temperature Relative humidity Line voltage Frequency Power consumption 25 pole sub D female 0 to 10 V for 0 to 100 voltage output within range Contact closure Contact closure O to 10 V for 0 to 100 within actual range O to 10 V for O to 200 mA 0 to 10 V for 0 to 100 within actual range Open collector Open collector Open collector Open collector TTL compatible TTL compatible Fiber Optic Link 2 Mbit s serial bi phase modulation Con
9. ntering its standard IEC colour code Furthermore up to 99 user defined operating conditions can be stored us ing the keys or by remote control This enables the user to specify Store and later re call specific component dependent measurement conditions System integration The CLT10 Control Unit has a standard IEEE 448 GPIB and an optional RS232C remote interface controller build in These interfaces ensure sys tem integration on production lines and in laboratories All functions are software controlled except power on off In addition to the functions controlled from the front panel of the Control Unit several en hanced features are controllable using the remote interface These include instrument identity integrated system tests inspection of set ups IEC 440 standard setup plus 1 16 1 2 1 2 and 4 W settings and read ing of the last 99 measurements These features enable the user to collect measurement data such as pro duction batch documentation and statistical analysis for later processing LP filter HP filter f 30kHz Z40kHz Fig 2 Measuring Principle Flexible configuration The power capacity up to 4VA of the CLT20 makes it possible to overload devices being tested for a short period This is use ful for stressing the device before testing under recom mended condi tions thus ensuring an extended dynamic range of the measurement The system includes distortion thre shold limits for High and Lo
10. pecifications CLT10 Component Linearity Tester Measuring Unit Main Specification Generator frequency Voltmeter frequency Voltmeter bandwidth Measuring speed Accuracy Component Range General Range switching time Range switching life lt 300W Transformation ratio Input impedance Max power Max 10 kHz voltage RNL 0 25 VA 300 W 3 kW Transformation ratio Input impedance Max power Max 10 kHz voltage RNL 0 25 VA 3 kW 30 kW Transformation ratio Input impedance Max power Max 10 kHz voltage RNL 0 25 VA 30 kW 3 MW Transformation ratio Input impedance Max power Max 10 kHz voltage RNL 0 25 VA 10kHz 2 Hz 30 kHz 400 or 75 Hz selectable Measuring cycle down to 10 ms excl handling Specifications are valid for 14 ms cycle with broad voltmeter bandwidth Test rate typically more than 30 compo nents per second 1 dB or 5 1 digit All passive impedances Primarily impedances within 100W to 3 MW Restrictions for other ranges exist lt 500 ms 10 operations 1 1 100W 2 0 2 VA Zx 10W 1VA Zx 50W 4 VA Zx 200 W 36 Vrms 150 dB typical 160 dB 30 to 300W load 1 1 1 kW 2 3 VA 4 VA Zx 2 5 kW 100 Vrms 160dB 1 10 10 kW 2 1VA Zx 5kW 4 VA Zx 725 kW 360 Vrms 150 dB typical 160 dB 1 10 100 kW 2 4 VA Zx 250 kW 1VA Zx 1 MW 0 25VA Zx lt 3 MW 1000 Vrms 140dB typical 150 dB Zx 300
11. tact closure 4 terminal ERA Lemo connector 5 to 45 C 41 to 113 F 40 to 70 C 40 to 158 F 20 to 80 non condensing 90 to 111 V AC 105 to 130 V AC 180 to 222 V AC 210 to 260 V AC 47 5 to 63 Hz 100 VA Dimensions and Weight for a complete test system Height Width Depth Net weight complete system Shipping weight complete syst Ordering Information Codes for a complete set 73466 Accessories 983434 983437 86820 51014 356 mm 483 mm 19 0 442 mm 17 0 CLT20 28 kg 62 Ibs CLT20 34 kg 75 lbs Description CLT20 3 Harmonic Index Tester Service Manual CU 8 MU Operator Manual Measuring cable 1m CLT20 IEEE cable 2m CE approved Specifications CLT10 20 Control Unit Main Specifications Displays 10 kHz functions 30 kHz functions Memory Other functions Remote Programming and Operation Functions controlled Inputs Outputs rear Communication with Type of connector Type of interface IEEE 488 Interface Type of connector Interface functions danbridge Danbridge A S Lykkegaardsvej 15 DK 4000 Roskilde Denmark www danbridge com 2 x 4 digits 7 segment green LED Annunciation LEDs Four Zx ranges 10 kHz voltage on off Voltage step and entry Timer step and entry IEC 440 entry extended to E192 standard series Read out in V or dB Manual and auto range Programmable reject limit high and low 99 s
12. w condi tions These fully programmable limits control the user accessible connector outputs for use on auto matic go no go production lines Remote control of the equipment for system integration and for data col lection is ensured by the standard built in IEEE 488 and RS232C in terfaces Measuring principle The measuring method of the CLT20 Component Linearity Test Equipment is based on de termina tion of the non linearity of normally linear components A very pure 10 kHz sine wave voltage is fed to the component under test as shown in Fig 2 If the impedance of the component is not absolutely independent of the applied voltage the sine wave will be distorted and the current will con sist of a pure fundamental sine wave component and its higher har monics The third harmonic component is normally the dominant one and is chosen as a measure of the distor tion the non linearity of the com ponent The third harmonic current is equi valent to a no load voltage U30 in series with the compo nent under test which has an impedance Zx As the 10 kHz low pass filter blocks the 30 kHz the third harmonic voltage U is measured over the load impedance R1 Given the values of Zx and R1 the no load voltage can easily be found as U U 1 Es Eo 3 0 3 R By inserting a special low distortion matching transformer the compo nent under test can be matched to the generator and the 30 kHz volt meter over a wide impedance range
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