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Z-Meter DX4085/ User Guide 

PromLegion Ltd

 

WARRANTY 

PROMLEGION  LLC warrants that the Z-Meter, if properly used and 
installed, will be free from defects in material and workmanship and 
will substantially conform to PROMLEGION’s publicly available 
specification for a period of one (1) year after date of the Z-Meter was 
purchased.  

PROMLEGION  LLC also provides a 3-month warranty for the 
following parts and components included in the standard delivery set 
of the product: the cables, program disks and documentation 

If the Z-Meter fails during the warranty period PROMLEGION  will 
repair the Z-Meter or replace it or its parts. 

For the warranty support a Consumer can address to the office of the 
company PROMLEGION or its sales representative.  

The product repaired or replaced in whole or in part, will have the 
warranty period counted as one (1) year from initial shipment but not 
less than 3 months upon shipping of repair or replacement. 

TECHNICAL SUPPORT 

For the technical support and repair within and after the warranty 
period, please, address: 

In Russia and CIS 

PromLegion Ltd.  
46 Warshawskoe shosse, Moscow 115230, Russia 
Tel: 

+7-499-678-3231 

Fax: 

+7-499-678-3258 

e-mail: 

[email protected] 

In Europe, the USA and other countries 

TEC Microsystems GmbH. 
Schwarzschildstrasse 8, Berlin 12489, Germany 
Phone: 

+49-(0)30-6789-3314 

Fax: 

+49-(0)30-6789-3315 

e-mail:  

[email protected] 

 

 

ver. 1.00 (2017) 

page 3 of 64 

Содержание DX4085

Страница 1: ...Z METER DX4085 USER GUIDE PromLegion Ltd Moscow 2017 version 1 00 ...

Страница 2: ...17 Copyright All rights reserved Reproduction in any manner in whole or in part is straightly prohibited without written permission of PromLegion Ltd The information contained in this document is the subject to change without notice page 2 of 64 ver 1 00 2017 ...

Страница 3: ... or replace it or its parts For the warranty support a Consumer can address to the office of the company PROMLEGION or its sales representative The product repaired or replaced in whole or in part will have the warranty period counted as one 1 year from initial shipment but not less than 3 months upon shipping of repair or replacement TECHNICAL SUPPORT For the technical support and repair within a...

Страница 4: ...ns 17 4 2 Operation modes 17 4 3 Selection of operation mode 17 4 4 Main Mode 19 4 4 1 Set of measuring parameters 19 4 4 2 Measurements 21 4 5 Measurement of AC Resistance 22 4 6 Measurement of operating voltage and temperature 24 5 ADDITIOONAL MESSAGES 25 6 WORWING WITH REMOTE COMPUTER 26 6 1 System Requirements 26 6 2 Drivers Installation 26 6 3 Software Installation 27 6 4 Getting Ready 27 6 5...

Страница 5: ...sistance 41 7 4 Measurement Procedure and Notes 42 7 5 History 43 7 5 1 File 43 7 5 2 Options 45 7 5 3 Report 45 7 6 TE Modules Database Update 46 8 MAINTENANCE 48 9 APPENDIX 1 THEORETICAL GROUNDINGS 50 9 1 Time Constant 50 9 2 Interpolation Results 51 9 3 Figure of Merit Z 53 9 3 1 Single stage TE Module 𝑍𝑍 53 9 3 2 Two stage TE Module 𝑍𝑍 55 9 3 3 Alternative Correction 57 10 APPENDINX 2 MEASURIN...

Страница 6: ...PromLegion Ltd Z Meter DX4085 User Guide page 6 of 64 ver 1 00 2017 ...

Страница 7: ...hod approximations Additionally new functionality of this device in the family of Z meters measurement of operating parameters of TECs Operating voltage 𝑈𝑈 Working temperature 𝑇𝑇𝑐𝑐 or 𝑇𝑇𝑎𝑎 Measurements of temperature can be used for evaluation of cooling temperature of working TEC 𝑇𝑇𝑐𝑐 if thermal sensor is placed on TEC cold side Or to measure ambient temperature 𝑇𝑇𝑎𝑎 of performance measurements i...

Страница 8: ...ing performance of single stage and multi stage thermoelectric modules Testing performance of TE modules integrated into optoelectronic devices photodetectors lasers etc Operating parameters measurements Compatible with other Z Meters of PromLegion Devices Family FEATURES Portable device Metal housing Measurement at direct and reversed current Results normalization to standard temperatures Low pow...

Страница 9: ...ge 10 3 K 1 3 Accuracy 1 5 Repeatability 0 4 Time Constant 𝜏𝜏 Range s 1 100 Accuracy 1 5 Repeatability 1 Voltage DC Range V 20 20 Accuracy V 0 02 Temperature Sensor Range С 40 85 Accuracy С 0 25 typical 1 maximum 0 05 typical lifetime drift Repeatability C 0 06 Power Supply Build in battery Li ion V 3 7 2050mAh Power Supply AC Voltage V 110 240 Frequency Hz 50 60 Voltage DC V 5 Power max W 5 ver 1...

Страница 10: ...range C 20 60 Humidity 5 95 Mechanical Parameters General Unit Dimensions mm 70х160х21 Mass g 280 2 2 Delivery Kit 1 Z meter unit 1 pc 2 Temperature sensor 1 pc 3 Measuring terminal 1 ps 4 USB cable 1 pc 5 AC DC power adapter 1 pc Measuring terminals can be supplied optional on the basis of Kelvin clips of various designs page 10 of 64 ver 1 00 2017 ...

Страница 11: ...eration during a day Option of working with remote computer and common software for Z meter family Developed for testing of thermoelectric modules performance and operational operating parameters of thermoelectric TE modules It can measure operation and performance of thermoelectric cooling modules thermoelectric generators and thermoelectric sensors ver 1 00 2017 page 11 of 64 ...

Страница 12: ...chapter Battery charge procedure Before routine switch ON the device connect the measuring probes and external temperature sensor chapter Connections Connect examining TEC by use of measuring probes Chapter TEC connection 3 1 Battery change Use for built in battery change standard cable microUSB USB A and AC DC power adaptor from delivery kit page 12 of 64 ver 1 00 2017 ...

Страница 13: ...s given by LED or indicator at device screen is the following Status Device is OFF Device is ON Cable is not connected LED pulses green one time per 5 seconds Number of pulses indicates 1 pulse 25 2 pulses 25 50 3 pulses 50 75 4 pulses 75 Pictogram of battery charge indicates battery status Cable of changing is connected LED lights red during charging and OFF when 100 Pictogram indicates charging ...

Страница 14: ...n Ltd Z Meter DX4085 User Guide Connection of measuring probes Connection of temperature sensor Attention Do not connect or disconnect external temperature sensor during device is ON page 14 of 64 ver 1 00 2017 ...

Страница 15: ... your TEC firmly as shown below Please temperature sensor near measuring module 3 4 Device power ON and power OFF To power ON the device push the power button red shortly Device initialization takes few seconds During the time the TFT screen indicates initialization by pictogram and LED near cable connector lights green To switch the device do the same push the power button red shortly If the devi...

Страница 16: ...econds 4 DEVICE INTERFACE Device main windows onto 2 4 TFT screen consists of three areas top status string large working area and bottom command string connected with command buttons Top status string indicates operation mode including sigh of measurement of voltage and indication of battery status page 16 of 64 ver 1 00 2017 ...

Страница 17: ...de measurement only of AC resistance express measurement Operating Mode measurement of operation parameters of working TEC working voltage and cooling temperature is external sensor if placed onto cold side Working with remote computer software Expanded options of measurements due to use of databases corrections calculations and storage of results see chapter Operation with remote computer Top sta...

Страница 18: ...PromLegion Ltd Z Meter DX4085 User Guide MAIN MODE RESISTANCE MODE OPERATING MODE Note Main mode is default on device switch ON page 18 of 64 ver 1 00 2017 ...

Страница 19: ...e 𝑇𝑇𝑚𝑚𝑚𝑚𝑚𝑚 This is relatively long procedure takes up to minute or more Note Make sure that before the testing thermoelectric module is correspondingly connected to measuring probe and external temperature sensor is placed correctly see chapter TE module connections 4 4 1 Set of measuring parameters Measurement parameters are the following Measurement current Total time of measurements ver 1 00 20...

Страница 20: ...e provided by use one command button SETUP Press the button and retrieve setting windows of the above mentioned parameters one by one Select required value by buttons and After set of required value press SET and come to the another parameter by SETUP or return back by BACK page 20 of 64 ver 1 00 2017 ...

Страница 21: ...creen indicates progress of the measurements yellow color During measurements and after finish it is possible to change screen from general view of measurement of all the parameters in the cycle to particular parameters Selected parameter indication becomes bigger although other ones smaller The changes are provided by command button DISP Press the button and the screen with be changes one by one ...

Страница 22: ...ce Note Make sure that before the testing thermoelectric module is correspondingly connected to measuring probe and external temperature sensor is placed correctly see chapter TE module connections Select measurement mode by command button MODE page 22 of 64 ver 1 00 2017 ...

Страница 23: ...red by temperature sensor The bottom value recalculated AC resistance to standard reference temperature 27 C 300K The default reference is 27 C 300K Optional reference temperature can be set see chapter Main mode Note If temperature sensor is not connected to device then all following measurements to be related to standard temperature default value 27 C 300K ver 1 00 2017 page 23 of 64 ...

Страница 24: ...tion Voltage at thermoelectric generator TEG provided by temperature difference Voltage response of thermoelectric heat flux sensor Additionally external temperature sensor gives useful information on temperature at thermoelectric module cooling performance of TEC or temperature difference at TEG or sensor Select measurement mode by command button MODE By the selection it is not needed start measu...

Страница 25: ...asured resistance is high and comes out of specification Measured resistance is low and comes out of specification At switch ON the device The temperature sensor is not found not connected In the Main mode Probably the measuring component module is not thermoelectric module ver 1 00 2017 page 25 of 64 ...

Страница 26: ...nd a User s special knowledge The software can be download from website http www tec microsystems com downloads html The Z Meter is operated by computer under the operating system Windows 98 2000 XP Vista 7 10 The requirements are the following Free USB port 20 MB free hard drive space additional space may be required later to store database for various types of coolers Mouse or compatible pointin...

Страница 27: ...all and proceed according to the installer directions Remember at least 20 MB of a space should be initially available at selected logic disk and that the size will increase when you ll add new TECs to a database with measurement results 6 4 Getting Ready Attention If the Z Meter was stored at temperatures below 10 C before measurements it must be kept at expected ambient test conditions for at le...

Страница 28: ...s operation mode press command button MODE for about 5 seconds Connect by microUSB cable the device with USB port of computer 6 5 Measurements 6 5 1 Run the Z Meter II software The following windows will be displayed one after another in case you run Z meter program page 28 of 64 ver 1 00 2017 ...

Страница 29: ...rly connected Also check whether the USB drivers have been properly installed and repeat USB driver installation procedure if required see 6 The main window will appear Important TEC polarity check option must be switched off See Software The Z Meter type DX4085 does not support the option ver 1 00 2017 page 29 of 64 ...

Страница 30: ...Remember temperature sensor is located in the chamber and considerable difference of TEC and thermosensor s temperature will result in mistakes in measurements Note TEC polarity check option must be switched of in case of external measurements 6 5 3 Make the pre sets for measurements TEC ID If serial number of the testing is known or identified in a case of testing of RMT TECs set the s n using Co...

Страница 31: ...n stay correction coefficient as 1 One or to set own corrections coefficients if they are known of can be calculated Reference Temperature Set required reference temperature at reference bar Note Default 27 C 300K Parameters of measurement In Control field one can set parameters of measurement Working Current Recommended value is 1 of 𝐼𝐼𝑚𝑚𝑚𝑚𝑚𝑚 according to specification of examined TEC unit If it ...

Страница 32: ...t of the TEC If the value is unknown set stay default 10 second for the beginning Time step Recommended value 20 millisecond 6 5 4 Measurements If everything is OK and pre sets are made then push button Measurement At Graph field you will observe curves of Seebeck voltage measurement in time under applied working current page 32 of 64 ver 1 00 2017 ...

Страница 33: ...parameters TECs and Z meters must be kept at ambient conditions expected during tests for at least of one hour before any measurement 6 5 5 Measurement results The results of each measurement are stored in the file You can view or clear it using the File command With the Print command you can make the hard copy of the ver 1 00 2017 page 33 of 64 ...

Страница 34: ...ide History file on a default printer Submenu Export will help you to keep a History file in various formats More detailed descriptions of working with results and with software are described in Article Software page 34 of 64 ver 1 00 2017 ...

Страница 35: ...e below If the DEVICE NOT FOUND message pops up please make sure the device is properly connected Also check whether the USB drivers have been properly installed and repeat USB driver installation procedure if required see 3 1 above 7 2 Main Window The main program window is shown in the screenshot below Result field Corrections field Dynamics field Control field Device info field Type connector U...

Страница 36: ... to reconnect the Device or exit Options allows 1 adding editing a TE module type 2 selecting a TE module TEC database 3 choosing a TE module Cooler type 4 enabling disabling check polarity TE module internal TEC connection only History allows switching from current measuring results to database with previous measurements Help provides information concerning the Z Meter software 7 2 2 Reference Ba...

Страница 37: ...e recalculated to this temperature The temperature step is 0 1 K You may also choose a value from standard reference temperatures which are 20 C or 30 C or ambient 7 2 3 Functional Fields There are four functional fields in the main window Control field presents the following test parameters electric current total time of measurement time step The button Measure starts the measuring procedure ver ...

Страница 38: ...ined values of 1 Time constants at different current polarities 2 Z at different current polarities Corrections field shows the important calculated corrections values which will be used for calculation of them main performance parameters like for example 𝑍𝑍 see Chapter 5 3 for details Following possibilities of a correction exist page 38 of 64 ver 1 00 2017 ...

Страница 39: ...d results 1 Electrical AC resistance 𝑅𝑅 of the TE module 2 Ambient temperature 𝑇𝑇𝑎𝑎𝑎𝑎𝑎𝑎𝑎𝑎𝑎𝑎𝑎𝑎𝑎𝑎 3 Figure of Merit 𝑍𝑍 of the TE module for two polarities and averaged 4 Maximum temperature difference 𝑇𝑇𝑚𝑚𝑚𝑚𝑚𝑚 of the TE module for two polarities and averaged 5 Time constant 𝜏𝜏 of the TE module for two polarities and averaged 7 3 Measurement Presets 7 3 1 Temperature Setting Z meter allows re calcula...

Страница 40: ...the type of a TE module from the Cooler type ID list PROMLEGION is the default TE modules base Other databases may be found selected following File TEC Base Editor Automatic notice will appear if any TEC parameter required for further calculations is missed Add correspondent parameter to the database If necessary TEC type is absent in the list add module parameters to the database manually see Cha...

Страница 41: ...es only 𝑏𝑏𝑡𝑡ℎ Allows for additional heat fluxes between pellets For single and two stage modules 𝑏𝑏𝑎𝑎 Allows for external heat fluxes For two stage modules only 𝑏𝑏𝑅𝑅 Allows for additional electrical resist ance of leading wires For single and two stage modules In other words any user is given an opportunity either to take into account the corrections via the calculated values selected by a User an...

Страница 42: ...eep a pause of at least 3x measured time constant before any new measurement It is usually 30 sec on average This time is usually enough to stabilize the TE module temperature The message appeared shortly after clicking Measure means that either open circuit inside the TE module short circuit inside the TE module Note the last case is hardly possible in practice according to PROMLEGION s experienc...

Страница 43: ...in As mentioned above the DX4090 Meter may be also used for measurement of AC resistance in coolers with more than two stages To do this leave the TE Cooler Type unselected Default Type in the TE Cooler Type field Insert a TE module into the DX4090 Meter and click the Measure button Attention You must ignore all the results except the resistance value in such a case 7 5 History 7 5 1 File The resu...

Страница 44: ...istory file name has the form of the date and time of the history file creation Comment field on the top of the History window allows adding of additional comments to history files If you need to save the History file under other name use the Save As command The New command closes the current history file and opens a new one with no data Data arrangement in the History window is represented below ...

Страница 45: ...n click on the appropriate field The default record state is Marked 7 5 2 Options If menu item Auto Save is checked the History file will be saved automatically 7 5 3 Report With the Print command you can make the hard copy of the History file on a default printer Submenu Export will help you to keep a History file in various formats ver 1 00 2017 page 45 of 64 ...

Страница 46: ...ny TE module are not available in the database you can add them by yourself The full set of parameters consists of 1 TE module cold and hot sides dimensions 2 Pellets number for a two stage TE module the pellets numbers ratio 3 Pellet cross section 4 Pellet height 5 Leading wires material 6 Leading wires length page 46 of 64 ver 1 00 2017 ...

Страница 47: ... figure above example only Select the File TEC Base Editor command from the Main menu The window titled Add TE cooler will appear There are two input boxes in the window Cooler and Leads All or a few fields may be already filled in Enter correct required parameters by yourself when required ver 1 00 2017 page 47 of 64 ...

Страница 48: ...he TE module from the database select it and click on the Delete button 8 MAINTENANCE The Z Meter does not require any particular maintenance or service Nevertheless if for any reason you feel doubtful about the device accuracy you can check it by measuring a precision resistor instead of a TE module The R meter program should be used We suggest measuring a resistor of 5 to 20 Ohms Measure the res...

Страница 49: ...Z Meter DX4085 User Guide PromLegion Ltd Compare the data obtained If the difference in the resistance values is within 0 5 the Z Meter can be further used for measurements ver 1 00 2017 page 49 of 64 ...

Страница 50: ...me 𝑡𝑡 and a generalized coordinate 𝑥𝑥 𝑈𝑈𝑛𝑛 𝑚𝑚𝑛𝑛 the eigen functions and eigen values 𝐴𝐴𝑛𝑛 thermal amplitudes 𝑇𝑇𝑠𝑠𝑠𝑠 𝑥𝑥 stationary 𝑇𝑇 value The solution 5 1 1 analysis yields that the cooling process can be divided into two stages irregular and regular The first one is dictated by the initial moment s conditions and is described by a multi exponential interference This phase fades out rather quickl...

Страница 51: ...red The Z meter allows measuring time constants of single stage TE modules and estimating those of more stage ones 9 2 Interpolation Results The procedure of handling the time constant measurement data is as follows The temporal behavior of a single stage TE modules temperature difference is measured via the Seebeck voltage that is a corresponding proportional value 𝑈𝑈𝛼𝛼 𝑇𝑇 5 2 1 For a two or more...

Страница 52: ...e data collection duration and time step can be varied The measuring time duration and step can be varied too The measuring chart window is presented on the Figure below Measuring window of TEC dynamics The obtained experimental data is then fitted by the following function 𝑈𝑈𝛼𝛼 𝑡𝑡 𝑈𝑈𝑠𝑠𝑠𝑠𝛼𝛼 1 𝑒𝑒 𝑡𝑡 𝜏𝜏 5 2 2 The exponential regression is based on the method of least squares As its outcome the proce...

Страница 53: ...onsuming thermophysical measurements This approach is based on the Harman method The Figure of Merit is one of most important parameters of a TE module In a simplified form it may be defined as 𝑍𝑍 𝛼𝛼2 𝑘𝑘𝑘𝑘 5 3 1 1 Where 𝛼𝛼 TE material Seebeck coefficient 𝑅𝑅 TE module pellet electric resistance 𝑘𝑘 TE module pellet thermal conductance Hereinafter we deal with the stationary mode values only if not m...

Страница 54: ...mal conductance of a pellet allowing for additional heat fluxes between the pellets We assume that the heat exchange coefficients meet the following requirements 𝑎𝑎0 𝑁𝑁 𝑘𝑘 𝑎𝑎1 𝑁𝑁 𝑘𝑘 5 3 1 3 We also suppose that electric current is small 𝐼𝐼 𝑘𝑘 𝛼𝛼 5 3 1 4 Attention We recommend the measuring current 𝐼𝐼 0 01 𝐼𝐼𝑚𝑚𝑚𝑚𝑚𝑚 See 𝐼𝐼𝑚𝑚𝑚𝑚𝑚𝑚 values in the TEC specifications To the accuracy of the first order inf...

Страница 55: ...ion 𝑎𝑎0 1 𝛼𝛼𝑐𝑐𝑐𝑐𝑐𝑐𝑐𝑐 𝛼𝛼𝑟𝑟𝑟𝑟𝑟𝑟 𝑆𝑆0 1 where 𝛼𝛼𝑐𝑐𝑐𝑐𝑐𝑐𝑐𝑐 𝛼𝛼𝑟𝑟𝑟𝑟𝑟𝑟 are thermal exchange coefficients of convection and of heat emission calculated for each TE module individually 𝑆𝑆0and 𝑆𝑆1 are the surfaces of the cold and hot sides of the TE module tested Eq 5 3 1 5 remains fair if inequalities 5 3 1 3 are modified as 𝑎𝑎0 𝑁𝑁 𝑘𝑘 𝑎𝑎0 𝑎𝑎1 5 3 1 6 That means that the method allows finding the value 𝑍𝑍 of ...

Страница 56: ...𝑇0 1 2 substrates temperatures 𝑇𝑇𝑎𝑎 ambient temperature 𝑁𝑁1 2 numbers of pellets on the stages 𝑎𝑎0 1 2 heat exchange coefficients for the cold hot and medium substrates respectively Let us assume that the ratios of the heat transfer coefficients 𝑎𝑎0 and 𝑎𝑎2 from the surfaces 𝑆𝑆0 and 𝑆𝑆2 to the pellets number 𝑁𝑁1 𝑁𝑁22 are the same 𝑎𝑎1 𝑁𝑁1 𝑎𝑎2 𝑁𝑁2 𝑎𝑎 𝑐𝑐𝑐𝑐𝑐𝑐𝑐𝑐𝑐𝑐 5 3 2 The first and third equations of...

Страница 57: ... value a is estimated by the software taking into account free convection in the air and heat emission Averaging the voltages ratio 5 3 2 4 though mathematically not obligatory is carried out similarly to a single stage module case for accuracy purposes 9 3 3 Alternative Correction It is convenient sometimes to reduce all the corrections discussed above to a certain coefficient 𝐴𝐴 Then Eqs 5 3 1 5...

Страница 58: ...diagram is shown below If there is no input signal the output voltage of the instrumentation amplifier equals to 𝐸𝐸𝑚𝑚 2 where 𝐸𝐸𝑚𝑚 4 096 V AC 𝑅𝑅 testing simplified diagram Output signal of instrumentation amplifier when AC R is tested During AC resistance measurement the output voltage of the instrumentation amplifier is sampled and measured by a 12 bit ADC each time before reversing the current 𝐼...

Страница 59: ...rumentation amplifier 𝑛𝑛 total number of readouts per measurement Typical values of parameters in formula 6 1 1 are 𝐼𝐼𝑚𝑚 2 mA 𝐴𝐴𝑉𝑉 5 or 50 𝑛𝑛 50 10 2 The 𝑼𝑼 and 𝑼𝑼𝜶𝜶 Telemetry During measurement of the parameters 𝑈𝑈 and 𝑈𝑈𝛼𝛼 a small current 𝐼𝐼𝑚𝑚 is applied to TE module periodically with 50 duty cycle Two successive measuring sessions are necessary to obtain the 𝑈𝑈 and 𝑈𝑈𝛼𝛼 values at different test...

Страница 60: ...ue 𝑈𝑈𝑠𝑠𝑠𝑠𝛼𝛼 obtained by the interpolation procedure see Eq 5 2 2 The Ohmic voltage drop UR is also calculated with reference to the steady state time 𝑡𝑡 It should be done for the reason the TE module resistance 𝑅𝑅 undergoes a change due to a slight evolution of its average temperature At the current 𝐼𝐼𝑇𝑇 0 01𝐼𝐼𝑚𝑚𝑚𝑚𝑚𝑚 it may have about 1 1 5 growth So the value 𝑈𝑈𝑅𝑅 is resulted from the following a...

Страница 61: ...er DX4085 User Guide PromLegion Ltd Attention Make sure the measured TE module has reached the steady state To assess it the telemetry capability is available see dynamics window ver 1 00 2017 page 61 of 64 ...

Страница 62: ...PromLegion Ltd Z Meter DX4085 User Guide page 62 of 64 ver 1 00 2017 ...

Страница 63: ...Z Meter DX4085 User Guide PromLegion Ltd ver 1 00 2017 page 63 of 64 ...

Страница 64: ...fo promln com phone 7 499 678 3231 fax 7 499 678 3258 website www promln ru Overseas Sales representative TEC Microsystems GmbH Schwarzschildstrasse 8 Berlin 12489 Germany phone 49 0 30 6789 3314 fax 49 0 30 6789 3315 e mail info tec microsystems com website www tec microsystems de page 64 of 64 ver 1 00 2017 ...

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