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Cal

Channel A

Channel B

Off

Cal

Calibrator

Pls Def A

Fig.4.7 Channel

4.1.8 Window

4.1.9 Calibration

Fig.4.8 Calibration

Pls Def A

Proximal

10%

Mesial

50%

Distal

90%

Default

Meas Mode

Pwr

Volt

Channel A

Zero

Cal

Zero+Cal

Must Cal

Off

Содержание S2438 Series

Страница 1: ...S2438 Series Microwave Power Meter User Manual Saluki Technology Inc...

Страница 2: ...38CB Power Meter Hardware Options S2438 001 S71710A Continuous Wave Power Sensor 9kHz 12GHz S2438 002 S71710D Continuous Wave Power Sensor 10MHz 18GHz S2438 003 S71710E Continuous Wave Power Sensor 50...

Страница 3: ...imeter Wave Power Sensor 110GHz 170GHz S2438 033 S87106A Millimeter Wave Power Sensor 170GHz 220GHz S2438 034 S87106B Millimeter Wave Power Sensor 220GHz 325GHz S2438 035 S87108B Millimeter Wave Power...

Страница 4: ...ed for the purpose of making profit without its prior permission otherwise Saluki will reserve the right to investigate and affix legal liability of infringement Product Quality Assurance The warranty...

Страница 5: ...of front panel 26 2 2 2 Description of rear panel 28 2 3 Basic Measurement Methods 29 2 3 1 Description of basic operation 29 2 3 2 Example of operation 32 3 Operation Guide 36 3 1 Model Selection of...

Страница 6: ...7 3 11 How to Enter the Trace Ctrl Menu Quickly 58 3 12 Test of Low Power Signal 59 3 12 1 Measurement of low power signal with a S71710 series CW sensor 59 3 12 2 Measurement of low power signal with...

Страница 7: ...mming Method of the VISA Interface 109 5 3 1 Installation of VISA library 109 5 3 2 Installation of controller 110 5 3 3 Installation of instrument 110 5 3 4 Sending of setting command 110 5 3 5 Readi...

Страница 8: ...nsure that all production processes meet the latest safety standards and provide the user with the highest security The design and testing of our products and their auxiliary equipment are all in comp...

Страница 9: ...Ground Instrument reinforcement insulation protection Ground terminal EU sign for batteries and storage batteries For details refer to Item 1 in 1 2 8 Disposal Environmental Protection of this sectio...

Страница 10: ...in 5 of the marked supply voltage 2 Unless otherwise stated the instrument has not been subjected to water repellent treatment Do not place the instrument on surfaces with water vehicles cabinets and...

Страница 11: ...operator is tripped by an excessively long power cord 6 The instrument should be connected with the TN TT power network and the fuse should have a maximum rated current of 16 A the necessity for use o...

Страница 12: ...perator shows allergic symptoms such as rashes frequent sneezing red eyes or breathing difficulties in the operation process please promptly seek medical advice to resolve the symptoms 4 Before disass...

Страница 13: ...e for emergencies during the transportation process Therefore please do not use the instrument during the transportation process and reinforcement and preventive measures should be taken to ensure the...

Страница 14: ...content of 1 2 Safety Guide of the User s Manual and the following precautions for safe operation In addition attention shall be paid to relevant specific operating environment requirements specified...

Страница 15: ...check for any damage to the main unit and attached items Step 3 Verify the items in the packaging box carefully by cross checking with packing list Step 4 If the outer package is broken the instrumen...

Страница 16: ...rrectly use the following anti static measures to reduce electrostatic damage Ensure that all instruments are properly grounded to avoid generating static electricity Before connecting the coaxial cab...

Страница 17: ...er meter uses a 3 core power cord interface that complies with the national safety standard Before the microwave power meter is powered on it must be confirmed that the protective ground wire of the p...

Страница 18: ...se conform the power supply parameters and power cord For details please refer to the section 2 1 1 3 Precautions before power on in this manual Step1 Connect the power cord Connect one end of the pow...

Страница 19: ...the instrument start process First temporarily display the manufacturer s name and logo and then enter the WinCE operating system menu to enable the instrument interface Step 4 After successful activt...

Страница 20: ...ns At this time just disconnect the power cord from the AC power outlet or rear panel power outlet of the instrument Therefore a sufficient operating space should be reserved during instrument operati...

Страница 21: ...nectors straight together so that they can be connected smoothly rotate the threaded sleeve of connector rather than the connector itself until it is tightened during connection there can be no relati...

Страница 22: ...etc in a same box which is the most common cause leading to connector damage 3 Keep the connector and analyzer at the same temperature If the connector is held by hand or cleaned with compressed air...

Страница 23: ...Under these two conditions the measuring port can be protected thus extending its service life and reducing the maintenance cost Before connecting the adapter to the measuring port of analyzer it sho...

Страница 24: ...dialog A scroll bar at the bottom indicates the progress of the calibration The S71710 series CW power sensor if used should be connected to the calibrator for calibration but the S81702 or S81703 ser...

Страница 25: ...ies microwave power meter can be achieved via the GPIB network interface or USB interface The specific methods for configuration and operation are as follows Step 1 Press Menu Remote Control Interface...

Страница 26: ...trument and disconnect the power cord from the instrument Step 2 Use clean soft cotton cloth dampened with cleaning agents to gently wipe the display panel Step 3 Dry the display with clean soft cotto...

Страница 27: ...all operations as shown in Table 2 5 For the specific functional description please refer to 4 2 Menu description in this manual 6 Soft keys Five unlabeled black keys to the right of the front panel d...

Страница 28: ...e ON OFF state of the calibrator Frequency Set the carrier frequency of measurement signals of Channel A and Channel B 2 2 2 Description of rear panel In this section the composition and functions of...

Страница 29: ...velope signal synchronized with the measured signal can be connected to the inside of the instrument via the trigger input interface Through selection of external trigger as the trigger source the pul...

Страница 30: ...ble shown by the current measurement result There are ten optional FDO tables The FDO table is a frequency factor correction table defined by the user 1 represents calling of the first FDO table 6 Fre...

Страница 31: ...ensor connection Table 2 8 Dexcription of operation interface Graphic Number Information Content Meaning 1 Display waveform The currently measured pulse waveform is displayed 2 Mark 1 The starting pos...

Страница 32: ...13 Waveform and time parameter display on peak power sensor connection Table 2 7 Description of operation interface Graphic Number Information Content Meaning 1 Mark time parameter The current time o...

Страница 33: ...eset key to switch the instrument to the preset state and start measurement If the signal level is possibly higher than the upper limit of the measured power level of the power sensor a power attenuat...

Страница 34: ...nue Trig Step 2 Set the display mode Press Menu Display Disp Type Trace A to set the display mode as waveform display Press Channel Trace Ctrl Trace Set X scale to set the X scale as 20 ns div Step 3...

Страница 35: ...Tel 886 909 602 109 Email sales salukitec com www salukitec com 35 Fig 2 16 Falling time test...

Страница 36: ...r signal Text display mode Description of Preset How to modify the sensor calibration factor 3 1 Model Selection of Power Sensor The S2438 series microwave power meter is compatible with the S71710 S8...

Страница 37: ...20 dBm 2 S71710D 10MHz to 18GHz 70 dBm to 20 dBm 3 S71710E 50MHz to 26 5GHz 4 S71710F 50MHz to 40GHz 5 S71710L 50MHz to 67GHz 6 S81702D Broadband peak power sensor 50MHz to 18GHz 20 dBm to 20 dBm 7 S...

Страница 38: ...eplaced The sensor needs to warm up for 15 minutes for stabilization before auto calibration 2 When the prompt Channel A B requires zeroing and calibration is the displayed in the system state area 3...

Страница 39: ...r output port 2 Press Cal Channel A Cal 3 Wait for 30 s to complete calibration Alternatively press Cal Channel A Zero Cal and complete zeroing and calibration simultaneously 3 2 2 Zeroing and calibra...

Страница 40: ...Off and Average to Man and the average count will be more than 200 times If the power is lower than 60 dBm the average count will be more than 500 times 3 4 Peak Power Measurement The S2438 series mi...

Страница 41: ...d last transition mesial line power as the reference the power value with the most power points between the top transition and the last transition is defined as the base line First Transition It refer...

Страница 42: ...line is usually defined as 90 of pulse power Alternatively both of them can be defined by the user ATTENTION With regard to automatic measurement of Rise time the first transition of waveform must be...

Страница 43: ...on to the restricted conditions for automatic measurement of various parameters in Table 3 4 and refer to relevant settings in 3 4 2 Peak power measurement and waveform display to complete the accurat...

Страница 44: ...play of several waveforms and automatic measurement of time parameters as shown in Fig 2 3 At this time the X scale is relatively large so the Rise time and falling time can t be observed In this case...

Страница 45: ...small window display medium window display and large window display which can be switched through the Window key Fig 3 5 shows small window display The small window is divided into upper and lower par...

Страница 46: ...the lower part displays the waveform parameters including power and time parameters Below Trace Ctrl select Meas Para as Pwr or Time For specific setting of time and power parameters please refer to...

Страница 47: ...corresponding position on the screen Trigger position Fig 3 8 Trigger position on the left side of the screen Fig 3 8 displays the waveform with the trigger position on the left side of the screen Th...

Страница 48: ...on the screen or even outside the screen Fig 3 11 shows the signal s rising edge with Trig Pos set to Mid Trig Delay set to 8us and waveform moved leftwards by 8 us relative to the screen center Simi...

Страница 49: ...methods for measurement of the pulse strings in different periods through the trigger holdoff function are described in detail by taking the Channel A of the S2438 microwave power meter connected to a...

Страница 50: ...method see the section 4 6 Setting of trigger position the gate is used to display the measurement information of the trace within a specific period of time Every peak measurement channel can be set w...

Страница 51: ...and length of the gate can be modified through Gates Set or the Left and Right keys In the trace display mode the average power and peak power of only one gate can be measured which corresponds to th...

Страница 52: ...ing steps 1 Set Trace Ctrl Trace Gate 1 to select the gate corresponding to the mark below the current trace as 1 and A1 will be displayed correspondingly at the upper right corner of the trace displa...

Страница 53: ...PWR of Gate 2 in dB 6 If Comb is set as F1 F2 A1 A2 will be displayed at the upper right corner of the digit display window and the measured result in the digit display window will be the difference b...

Страница 54: ...annel or display offset is set the system will display Offset On 3 9 3 Setting of FDO The FDO varies with the frequency It provides a fast and effective method for compensation of the frequency change...

Страница 55: ...calibration table and the effective FDO table the microwave power meter will use the linear interpolation method to calculate the calibration factor and offset at that frequency point Fig 3 14 shows t...

Страница 56: ...e modulation signal control of a transmitter is a cumulative distribution function CDF graph and a complementary cumulative distribution function CCDF graph CDF represents the percentage of a sampling...

Страница 57: ...e peak to average ratio is greater than 3 5 dB is 10 00n n stands for 10 9 which means the probability of occurrence is infinitely small Based on the definition of CCDF the number of sampling points t...

Страница 58: ...rm of table for user s use Fig 3 17 Example of CCDF statistic table The measured results at several key points are given in the form of statistic table in Fig 3 17 3 11 How to Enter the Trace Ctrl Men...

Страница 59: ...ow 75 dBm enable the power output of the device under test wait for about 20 s and read the displayed power value If the measurement is performed for a long time it is recommended to perform the zeroi...

Страница 60: ...3 19 shows the text display window in which the results of all parameters of the pulse power test can be displayed simultaneously to facilitate observation Fig 3 19 Text display window 3 14 Descriptio...

Страница 61: ...unication formats please refer to the SYSTem PRESet command in the S2438 Series Microwave Power Meter Programming Manual 3 15 How to Modify the Sensor Calibration Factor Since the power standard has a...

Страница 62: ...he standard power is 0 5 dBm at the 1GHz frequency point it indicates that the power of the power sensor connected to the S2438 microwave power meter is 0 5 dB lower than the standard value at the 1GH...

Страница 63: ...Menu Measure Trigger Display System Channel Window Calibration Frequency 4 1 1 Main interface Pwr Meter About Main Menu A S81702E B S81703E Preset Pwr Meter Language Eng Fig 4 1 Main interface NOTE A...

Страница 64: ...a certain setting Therefore just as the Channel Window Cal and Frequency keys the Measure Trigger Display and System menus are described in individual chapters in this User Manual 4 1 3 Measure Offset...

Страница 65: ...3 Measure 4 1 4 Trigger A TrigMode Free Run Continue Trig Signal Trig Run Trigger Control Stop A TrigMode Continue Trig B TrigMode Free Run Settings ChA Settings Trig Source Chan B Trig Mode Auto Tri...

Страница 66: ...09 Email sales salukitec com www salukitec com 66 4 1 5 Display Resolution 1 2 3 4 Display Disp Type Signal Resolution 3 Log Grid Type Grid Disp Type Digit Unit Lin Language Eng Grid Type Blank XHair...

Страница 67: ...isplay 4 1 6 System Error List Clear Error Pre Page Next Page System Save Recall Remote Interface Save Error List Recall Save Recall Preset TimeSet Clear Service Edit Interface Up Down System Apply Se...

Страница 68: ...age Pulse Def ChanGain Test Self Test Keyboard Test Bmp Test Service Test Bmp Save Software Update Secure Erase Debug Mode Fig 4 6 System 4 1 7 Channel Bmp Save Disk Sel Lcl Save History History View...

Страница 69: ...er 2 Meas Para Time Now Gate 1 2 3 4 Gate A Now Gate 1 Start Time 0 000ns Length 100 00us Trace Gate 1 Auto Gate Gate Set TraceSet A Vert Cent 10 00dBm Vert Scale 10 00dB Trig Pos Left X Scale 10us Ne...

Страница 70: ...salukitec com 70 Cal Channel A Channel B Off Cal Calibrator On Pls Def A Fig 4 7 Channel 4 1 8 Window 4 1 9 Calibration Fig 4 8 Calibration Pls Def A Proximal 10 Mesial 50 Distal 90 Default MeasMode P...

Страница 71: ...guage Main Menu Sensor Model and Preset About The model software version production unit and other information of the S2438 series microwave power meter pop up Press any keys except About to exit from...

Страница 72: ...Trig Mode 5dBm for Trig level Single for Disp Type 3 for Resolution Log for Digit Unit 1 for Gate AVG PWR for Meas Type and 1 000 GHz for Frequency When the S2438 series microwave power meter is conne...

Страница 73: ...ement result the Offset should be positive otherwise it should be negative Feed It is used to select which channel is involved in the result displayed in the current measurement window At the same tim...

Страница 74: ...ss Function to switch between Sing and Comb If the Sing mode is selected then Feed2 can t be operated the result displayed in the current digit window will be a single result which will be the display...

Страница 75: ...00 mW and that of Gate 1 below Feed2 is 10 mW the ratio A1 B1 will be 1 0k i e 1000 If AVG PWR Peak PWR and Min PWR are included below Meas and F1 F2 is selected below Comb the result will be the diff...

Страница 76: ...the trigger sampling mode of Channel A Free Run It is used to set the current sampling mode as Free Run In the Free Run mode sampling is performed at a fixed rate without being affected by trigger Co...

Страница 77: ...l is a pulse modulation signal a trigger signal synchronized with the Channel A pulse envelope can be generated by through adjustment of the trigger level If the measured signal is a continuous wave s...

Страница 78: ...ng the Maximum Period in the Pulse String For example if a pulse string includes five pulses with the periods of 2us 4us 6us 8us 10us respectively then HoldOff should be set between 20 1 us and 29 9 u...

Страница 79: ...row with an arrow mark in the lower middle part of the table Term Set Statistic measurement is usually an independent operation with starting and end time This menu can be used to set the termination...

Страница 80: ...cally switch among 0 01 0 1 1 10 and 100 Decades It is used to set the density of the vertical scale The system can switch among 1 6 Mark Set It provides two marks for accurate measurement of the CCDF...

Страница 81: ...t should prevail Term Action When the preset time or number of points are reached during statistic measurement the operation performed by CCDF statistic measurement will be stopped including statistic...

Страница 82: ...ion will be the significant figure 1 2 3 or 4 Digit Unit It is used to set the digit unit of the current window including Log and Lin If Log is set the unit will be dBm or dB if Lin is set the unit wi...

Страница 83: ...itch to the next page to view other error information Save Recall It is used to save and recall the current setting state of the power meter Save It is used to save the current state of the power mete...

Страница 84: ...functions and facilitate fault location Keyboard Test It is used to check whether each key is effective When the user presses a key on the front panel the pressed key will be displayed in the window B...

Страница 85: ...ber of automatic settings is related to the measured power Manu It is used to set the average count manually Avg Count It is used to set the average count from 1 to 1 024 Chan Offset The channel offse...

Страница 86: ...onding to the vertical center position of the current waveform display window For example if the Vert Cent is set as 0 dBm the power corresponding to the center line of the waveform display window wil...

Страница 87: ...ng smaller than the input value Next Page Press Next Page to enter the next menu Trig Delay It is used to set the position of the trigger point on the screen A positive trigger delay indicates that th...

Страница 88: ...e adopted Range includes three setting options Low High and Auto If Range is set as Low the low range will be forcibly adopted and when the input power is greater than the low range an error prompt wi...

Страница 89: ...based on the pulse signal duration i e pulse width When the automatic gate is opened Mark 1 and Mark 2 can t be set directly and can only be set based on the left and right reference ratios Ref1 Left...

Страница 90: ...elect the frequency to be deleted through the Up and Down keys Press Delete and the prompt window Delete current FDO item will pop up Press Ok to complete the deletion press Back Local to cancel delet...

Страница 91: ...of the waveform are calculated to be 10 90 of the voltage 4 2 8 Window Press Window to switch among Small Window Medium Window and Large Window In the Small Window mode the upper and lower windows ar...

Страница 92: ...with a built in calibration circuit can be calibrated online during measurement without being connected to the S2438 calibrator Zero Cal It is used to zero and calibrate Channel A The S71710 series CW...

Страница 93: ...g String Note 1 Description LAN Local Area Network Raw socket protocol TCPIP host_address port SOCKET Controller realizes remote control by connecting the instrument via the network port on the rear p...

Страница 94: ...wer meter is achieved through LAN unblocked physical connection of the network should be guaranteed The address is set within the subnet where the main control computer is located through the Local IP...

Страница 95: ...For remote control the main control computer should first be installed with the GPIB bus card driver and VISA library During communication the main control computer achieves addressing of the control...

Страница 96: ...ssage For the structure and syntax of device message refer to Section 6 1 3 SCPI Device message can be divided into command and instrument response according to the different transmission directions A...

Страница 97: ...tructure SCPI has the following features 1 The SCPI is established for the test functions rather than instrument operation description 2 The SCPI reduces the repetition of the realization process of s...

Страница 98: ...ction is to trigger an event at a particular moment g Query Query is a special command When the controller is queried it is necessary to return to the response message in conformity with syntax requir...

Страница 99: ...command SENSe FREQuency CW FIXed FREQ is the short format part of the command The lowercase character part of the command is optional this flexible format is called Flexible Listening For more inform...

Страница 100: ...command path is reset as the root 5 Command parameter and response Table 5 4 Types of SCPI Parameter and Response Parameter Type Response Data Type Numeric Real or Integer Extended Numeric Integer Di...

Страница 101: ...meric parameters receive MAXimum and MINimum as parameter values Other special values such as UP and DOWN are received by the instrument parsing capability SCPI table will list all valid parameters No...

Страница 102: ...y are formatted as basic decimal notation or scientific notation Most high level remote control languages all support these two formats Examples of real response data 1 23E 0 1 0E 2 1 0E 2 0 5E 0 0 23...

Страница 103: ...ntifier should be added in front of the value In the decimal default format an identifier isn t required When the value without an indicator is entered the device will ensure that it is entered in dec...

Страница 104: ...the next command is executed Normally overlapped commands take longer to process and allows the program to process other events synchronously Even if multiple commands are set in a command line they a...

Страница 105: ...cuting the current command until the value 1 is returned The command is returned only when the operation completion bit in the ESR is set which indicates that the previous command is processed Termina...

Страница 106: ...STatus is a combination of all statuses of the instrument The associated parallel query enable register PPE determines which data bits of the STB act on the IST mark 4 Output buffer The output buffer...

Страница 107: ...atus reporting system the controller in the test system must receive and evaluate the information of all instruments The standard methods applied include 1 Query the service request SRQ initiated by t...

Страница 108: ...he error queue should be frequently queried to obtain the wrong command sent by the controller to the instrument especially during testing of the controller program 5 2 Remote Interface and Its Config...

Страница 109: ...ace configuration For the setting of the GPIB interface press System Interface GPIB Addr to enter the interface as shown in Fig 5 2 and then modify the setting in the GPIB address input box through th...

Страница 110: ...atus iStatus viOpenDefaultRM defaultRM iStatus viOpen defaultRM analyzerString VI_NULL VI_NULL analyzer 5 3 3 Installation of instrument The following example shows how to initialize the instrument de...

Страница 111: ...ment void ReadSettings ViStatus iStatus long uiRetCnt char rgcBuf 256 Query the frequency iStatus viWrite iDevHandle FREQ n strlen FREQ n uiRetCnt Sleep 10 iStatus viRead iDevHandle rgcBuf sizeof rgcB...

Страница 112: ...od 2 of waiting for sweep completion use OPC iStatus viWrite analyzer INIT 20 retCnt iStatus viWrite analyzer OPC 18 retCnt iStatus viRead analyzer OpcOk 2 retCnt wait OPC to return 1 Method 3 of wait...

Страница 113: ...de module set that corresponds to a planned operation e g configuring reading from writing to or triggering the instrument It resides in the computer as the bridge and link between the computer and th...

Страница 114: ...r has experienced different development processes in order to solve the instrument interchangeability and test program reusability of the automatic test system Currently the IVI Interchangeable Virtua...

Страница 115: ...tec com www salukitec com 115 Configuration of ports and installation of IO library Before using a computer to control the microwave power meter confirm that you have correctly installed and configure...

Страница 116: ...er you purchased is still within the warranty we will repair your power meter free of charge according to the commitment in the warranty certificate If it is beyond the warranty we will only collect t...

Страница 117: ...rator part provides a calibration signal with a power of 1 000 mW The calibrator provides an absolute power reference for the microwave power meter so that the power can be traced back to a manufactur...

Страница 118: ...ent controller may be faulty If the screen is still blank the controller or LCD control circuit may be faulty 6 2 2 2 Accidental phenomenon Many factors may result in unexpected phenomena during use T...

Страница 119: ...and solve the problems according to the methods provided in the section 6 2 Fault diagnosis and troubleshooting Alternatively you can contact our customer service center and provide the collected err...

Страница 120: ...the shipping documents When packaging the microwave power meter please pay attention to the following items Packaging of the microwave power meter with other materials may damage it It is forbidden to...

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