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10 TEGAM WAY • GENEVA, OHIO 44041

440-466-

6100 • FAX 440

-466-

6110 •

V.

Maintenance and Servicing

1830A System Calibration and Diagnostics ................................... 5-1

Calibration and Verification Equipment ........................................ 5-1

Calibration Environment ............................................................ 5-2
Disassembly of 1830A ............................................................... 5-2

Calibration and Diagnostic Process .............................................. 5-2

Troubleshooting ........................................................................ 5-9

VI.

Reprogramming

Reprogramming the 1830A ........................................................ 6-1

Memory Sanitization Procedure ................................................... 6-2

VII.

Preparation for Shipment

Returning Power Meter for Service .............................................. 7-1
Package Power Meter for Shipment ............................................. 7-1

VIII.

Storage

Storage Requirement ................................................................ 8-1

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Содержание 1830A

Страница 1: ...10 TEGAM WAY GENEVA OHIO 44041 440 466 6100 FAX 440 466 6110 www tegam com 1830A RF Power Meter for Metrology Instruction and Service Manual PN 1830A 901 01 Publication Date October 2019 REV N...

Страница 2: ...d calibrates test and measurement equipment formerly manufactured by Electro Scientific Industries ESI Gertsch Keithley Instruments Lucas Weinschel and Pragmatic Instruments A complete list can be vie...

Страница 3: ...ection 2 1 Use in Proper Environment 2 1 III Principles of Operation Understanding the 1830A Measurement Process 3 1 Theory of RF Power Measurements 3 2 Principles of DC Substitution 3 2 Power Measure...

Страница 4: ...nd Verification Equipment 5 1 Calibration Environment 5 2 Disassembly of 1830A 5 2 Calibration and Diagnostic Process 5 2 Troubleshooting 5 9 VI Reprogramming Reprogramming the 1830A 6 1 Memory Saniti...

Страница 5: ...amage to the equipment or other property WARNING statements identify conditions or practices that could result in personal injury or loss of life Terms as Marked on Equipment CAUTION indicates a perso...

Страница 6: ...of the 1830A Replaces the HP432 RF Power Meter Compatible with thermistor power sensors from Agilent HP TEGAM Weinschel Hughes General Microwave Millitech Supports 100 and 200 thermistors Integrates...

Страница 7: ...Quick Connect 4 pin mini microphone Heater Controller 8 VDC 200 mA compatible with all TEGAM and Weinschel thermistor mounts Environmental Specified Temperature Range Operating Temperature Storage Te...

Страница 8: ...in the unit The correct fuse for the 1830A is a 250 V 1 5 Amp slow blow fuse The fuse is located just below the power cord socket Before replacing the fuse place the Model 1830A front panel power swit...

Страница 9: ...terminated 48 Calibration Cable Lug terminated 48 USB Cable 2 meter USB A USB A Rack Mount Kit Single Unit Rack Mount Kit Dual Unit CA 11 48 CA 11 15 CA 10 48 CA 6 48 CA 7 48 CA 7 15 CA 21 48 CA 21 15...

Страница 10: ...nce a detailed written description of the problem should be attached to the instrument Many times repair turnaround is unnecessarily delayed due to a lack of repair instructions or of a detailed descr...

Страница 11: ...he processing and repair process RMA Instrument Model Serial Number Company Technical Contact Phone Number Additional Contact Info Repair Instructions Evaluation Calibration Only Repair Only Repair Ca...

Страница 12: ...shipment is to a location within the country in which the TEGAM service center is located The customer shall be responsible for paying all shipping duties taxes and additional costs if the product is...

Страница 13: ...y side NOTE It is recommended to remove all 4 feet prior to rack mounting Use in Proper Environment Normal calibration laboratory practice dictates that the environment should be closely controlled Th...

Страница 14: ...n the bolometer voltage is higher than the reference resistor voltage indicating that the bolometer s resistance is higher than desired power is increased to heat the bolometer and decrease resistance...

Страница 15: ...t current source that heats the RF sense thermistors in the sensor Separate sense leads monitor the voltage drop across the thermistors An error amplifier compares the difference between the voltage d...

Страница 16: ...ross a reference resistor to a servo amplifier that has been adjusted for low offset Figure 3 2 Simplified Schematic of the Model 1830A Heater Circuit NOTE The reference resistor is either 100 or 200...

Страница 17: ...his capability is needed to change sensors and is needed upon initial power up Because of the 1830A s unique capability to connect to any thermistor mount it is necessary to have different connections...

Страница 18: ...a heater circuit for all TEGAM and Weinschel ovenized thermistor mounts To connect a TEGAM temperature compensated thermistor mount F1130A F1130B F1135A etc the following cables will be needed Figure...

Страница 19: ...4 4 SETUP Menu Standby Mode Write Only Standby is explained above it is available in the SETUP menu also the 1830A will power up in standby mode every time Instrument Menu Located in the SETUP menus...

Страница 20: ...be used with TEGAM thermistor mounts such as the F1130A The TEGAM thermistor mount is a type of bolometer whose resistance decreases as a function of increasing heat associated with ambient temperatur...

Страница 21: ...IP through an Ethernet cable connection Transmission Control Protocol Internet Protocol TCP IP is the most popular network protocol and the basis for the Internet Its routing capabilities provide max...

Страница 22: ...r Usenet Hostnames may be simple names consisting of a single word or phrase or they may include the name of a Domain Name System DNS domain at the end that is separated from the host specific label b...

Страница 23: ...that it is a Link Local configuration Link local addresses are often used for network address configuration when no external source of network addressing information is available This addressing is ac...

Страница 24: ...is control sets the LCD brightness and LCD contrast System Temperature Read Only Located SETUP Instrument System Temperature menu This indicates the system temperature of the 1830A Serial Number Read...

Страница 25: ...n factor table is already loaded and also allows the user to edit the calibration active table calibration factor table from memory Add Cal Factor Table Read Write Located SETUP Cal Factor Table menu...

Страница 26: ...d damage a thermistor mount if not carefully monitored Max Min Volts Read Write Located SETUP Maintenance menu These controls should be used with cautions because the set the max and min voltage of th...

Страница 27: ...Located SETUP Maintenance menu This control allows you to set the Cal Warning and Cal Fail limits These limits will be used during the calibration process for flagging warning and failures Cal Warning...

Страница 28: ...10 TEGAM WAY GENEVA OHIO 44041 440 466 6100 FAX 440 466 6110 www tegam com 4 12 Section IV Operating Instructions 1830A Menus Map Figure 4 5 Front Panel Menu Map...

Страница 29: ...t4 4 Connect RF Source to input of sensor DO NOT TURN RF ON Procedure 1 Turn RF OUTPUT OFF on the RF Signal Generator 2 Using the CF Calibration Factor soft key enter the calibration factor for the de...

Страница 30: ...r Cable CA 10 48 Connections 1 Plug in all test and measurement equipment 2 Connect specialized TEGAM cable P N CA 7 48 to the Model 1830A and Power Sensor 3 Connect BIAS Connection to model M1130A 4...

Страница 31: ...gh Universal Serial Bus USB and TCP IP The same command set and command structure is used for each and will be explained later in this section There is also an imbedded LAN interface that allows for a...

Страница 32: ...PC The driver is located on the TEGAM website www tegam com o Navigate to the 1830A resources page and download the 1830A USB driver Using CA 14 2M connect the 1830A using the lower USB port to the P...

Страница 33: ...time To use this method of connecting to a network the LAN Configuration must be set to Automatic IP Addr To check that this is set up properly select SETUP Instrument Network Options LAN Configuratio...

Страница 34: ...nnect the Ethernet port of the 1830A directly to the Ethernet port of a PC To do this you ll have to configure the 1830A to be in Automatic IP Addr mode as described above Once the 1830A and the PC ar...

Страница 35: ...and queries and calibrate the 1830A To access the LAN interface open a Web browser such as Microsoft Edge or Mozilla Firefox and type the 1830A IP address into the browser command line for example 19...

Страница 36: ...lt password is admin Figure 4 10 1830A LAN interface Login If you have entered the correct password the 1830A will display the page shown in Figure 4 11 From this screen much more information and func...

Страница 37: ...LUE or CV When used with the GET command the command will return the current value of the variable If the variable is a measurement such as POWSUB_1 the 1830A returns a value formatted to four decimal...

Страница 38: ...the following format SET VARIABLE NAME CV VALUE For example to set the calibration factor to 0 95 issue the command SET K_1 CV 0 9500 If the command was successful the 1830A will return the string 00...

Страница 39: ...n of the instrument in SCPI format CLOSE or QUIT Close the current connection to the 1830A Used only for TCP connections using these commands with other connection types will have no effect SHUTDOWN C...

Страница 40: ...pdate the K Factor value for a specific sensor Table 4 2 Model 1830A Sensor Commands Front Panel Commands These commands are used emulate the front panel of the 1830A These commands would be used if n...

Страница 41: ...KLINKACTIVE Network Link Active AIN1_RV_1_CNTS Ref Volt Chan 1 Counts AIN2_EA_1_CNTS Err Amp Ref Volt Counts AIN3_KV_1_CNTS Gain Adj for Ref Volt Counts AIN4_BV_1_CNTS Bolometer Voltage Counts AIN5_FG...

Страница 42: ...el Offset Setting AB_100_RESISTANCE_1 100 Ohm Channel Calcd Resistance AB_200_RESISTANCE_1 200 Ohm Channel Calcd Resistance AB_RESISTANCE_GAIN_1 Custom Resistor Channel Gain Setting AB_RESISTANCE_OFFS...

Страница 43: ...AC_2_OLD BV DAC Setting AB_RV_GAIN_2_OLD RV Channel Gain Setting AB_RV_OFFSET_2_OLD RV Channel Offset Setting AB_BV_GAIN_2_OLD BV Channel Gain Setting AB_BV_OFFSET_2_OLD BV Channel Offset Setting AB_D...

Страница 44: ...Counts AIN0_DAC_2 DAC Ref Volt RV_READING_RANGE Gain range for primary reading COMPENSATION_MODE Compenstation Mode DIAG_POWER_1 Diagnostic Power Calculation 1 DIAG_POWER_2 Diagnostic Power Calculatio...

Страница 45: ...set Lan Configuration USB_ENABLE Enable USB USB_RESET Reset USB AB_DAC_20_GAIN_1 Dac 20 Gain Value AB_DAC_20_OFFSET_1 Dac 20 Offset Value AB_DAC_20_GAIN_1_OLD Dac 20 Gain Value AB_DAC_20_OFFSET_1_OLD...

Страница 46: ...file that was not open 18 Thread Start Fail A thread in the system failed to start correctly 19 Bad Variable Type The variable type accessed is invalid 20 Serial Port Failed The system failed to conn...

Страница 47: ...can only be done by an administrator 34 User Already Logged In Another user is already logged in 35 Serial Port Time Out Communications on the serial port timed out 36 DEBUG ERROR 37 Invalid menu keyp...

Страница 48: ...an be added but each line adds processing time and load time Connections Plug in 1830A Allow necessary warm up time for each piece of equipment Steps for uploading a calibration file 1 Create a sensor...

Страница 49: ...v via the LAN interface webpage Open the LAN interface webpage with a web browser Figure 4 14 LAN interface Home Page Login to the LAN interface webpage Password is admin Navigate to Sensor Data page...

Страница 50: ...change to Htr OK after a 2 hour warm up the selected step size may be too large A very small number of thermistor mounts may enter regulation with a voltage that is less than 0 6 V below the rail If t...

Страница 51: ...tton will start the normal shut down procedure Shutdown will take several seconds to insure proper shutdown has occurred Do not unplug the 1830A until the LCD goes black and fan stop indicating shutdo...

Страница 52: ...interface webpage because firmware versions change some of the wording and diagrams Calibration and Verification Equipment Below is a list of the equipment needed to perform an 1830A calibration 1 Sou...

Страница 53: ...meter and reference resistor when the loop is balanced Calibrate the ADC for Reading BV and RV This operation is done to determine any gain or offset values in the bolometer and reference resistor vol...

Страница 54: ...30A Diagnostic Initiate To initiate a diagnostic process establish a LAN interface web session as described in Section IV Operating Instructions Select System Calibration from the LAN interface web me...

Страница 55: ...Diagnostic Channel Select Once Engineering Diagnostics Verification is selected use the continue button to select the channel of interest either Channel 1 or Channel 2 Refer to Figure 5 2 Diagnostics...

Страница 56: ...e Once a channel is selected the user will select a procedure Refer to Figure 5 3 Each step will lead user through connection diagrams and detailed instructions to accurately complete the selected ste...

Страница 57: ...6 Section V Maintenance and Servicing Note Each calibration and diagnostic step allows the user to view a connection diagram Figure 5 5 is an example of the diagram This manual will not contain all th...

Страница 58: ...10 TEGAM WAY GENEVA OHIO 44041 440 466 6100 FAX 440 466 6110 www tegam com 5 7 Section V Maintenance and Servicing Figure 5 5 Zero Servo Loop Connection Example Schematic...

Страница 59: ...lect Perform Calibration Figure 5 6 System Calibration Web Page 1830A Calibration Procedure Once a calibration is started it must be completed The automated process will step the user though an entire...

Страница 60: ...in Calibration Example WARNING Once calibration is complete the user will be asked to save data If the user chooses to save the new data all previous calibration data will be lost WARNING Once calibr...

Страница 61: ...connected properly and operating correctly Check the equipment settings in the procedure that was being used when the problem occurred Check that the test being performed and the expected results are...

Страница 62: ...lem I am getting a voltage error on channel 2 causing the 1830A to enter Standby mode Solution Verify 1830A is connected to a sensor Verify sensor cable is fully connected to the 1830A and the sensor...

Страница 63: ...s greater than 2Meg in size cannot be uploaded The upgrade stops the 1830A webserver for a few seconds so give the upgrade a little time to happen Please note the web browser may show a time out or co...

Страница 64: ...sent to TEGAM to restore 1830A to a usable condition Method 1 If the firmware version is v1 1 50a or higher there is not an SD card in your 1830A and you would follow the following steps Open the LAN...

Страница 65: ...sages that appeared on the power meter display o Any information on the performance of the power meter 2 Use the original packaging materials or a strong shipping container The carton must be both lar...

Страница 66: ...Storage Storage Requirements When the Model 1830A is to be stored for extended periods pack the instrument into a container Place container in a clean dry temperature controlled location If instrumen...

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