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AR 10046246, Operating And Service Manual

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Operating and 
Service Manual 

125A250 
Model 

10046246 
Part Number

Serial Number 

160 School House Road, Souderton, PA 18964 • 215-723-8181 • Fax 

866-859-0582

 • www.arworld.us

 

Summary of Contents for 10046246

Page 1: ...Operating and Service Manual 125A250 Model 10046246 Part Number Serial Number 160 School House Road Souderton PA 18964 215 723 8181 Fax 866 859 0582 www arworld us...

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Page 3: ...Requirements for Electrical Equipment for Measurement Control and Laboratory Use Part 1 General Requirements UL 61010 1 Issued 2012 05 11 Ed 3 Safety Requirements for Electrical Equipment for Measure...

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Page 5: ...n folgenden Minimalwerte der Schirmd mpfung und Filterung in den unterschiedlichen Leistungsklassen empfohlen Hochfrequenzleistung min Schirmd mpfung 100 Watt 50 dB 101 1000 Watt 60 dB 1001 10 000 Wat...

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Page 7: ...clearance on all vented sides of the equipment to permit the airflow required for proper ventilation Do not restrict airflow into the equipment by blocking any vents or air intakes Restricting airflow...

Page 8: ...a assembly may be heavy requiring two persons to lift Use caution when installing or removing unit Follow all equipment setup and lifting instructions specified in this document Ensure connectors are...

Page 9: ...von 10 2 cm 4 in auf allen bel fteten Seiten des Ger ts ein um eine ausreichende Luftzirkulation zu gew hrleisten Beintr chtigen Sie den Luftstrom des Ger ts nicht indem Sie L ftungs ffnungen oder de...

Page 10: ...allen in diesem Dokument angegebenen Anweisungen zur Anbringung Stellen Sie sicher dass alle Anschl sse f r den beabsichtigten Betrieb geeignet sind Informationen zu den Anschl ssen erhalten Sie im Be...

Page 11: ...tilation Ne limitez pas le flux d air allant dans l quipement en bloquant tout vent ou entr e d air La restriction du flux d air peut endommager l quipement causer des coupures intermittentes ou des d...

Page 12: ...dent lorsque vous installez ou retirez l unit Respectez toutes les instructions concernant l installation et le levage de l quipement indiqu es dans ce document Assurez vous que les connecteurs sont a...

Page 13: ...is voor goede ventilatie mogelijk te maken Belemmer de luchtstroom in het apparaat niet door ventilatieopeningen of luchtinlaten te blokkeren Het belemmeren van de luchtstroom kan leiden tot schade a...

Page 14: ...nstellen en optillen van de apparatuur die in dit document worden vermeld Zorg ervoor dat de connectoren geschikt zijn voor de beoogde werking De connectoren worden gespecificeerd in de gebruikershand...

Page 15: ...A2 100W 400MHz Module Assembly Schematic 10039874 18 3 3 Power SupplIES PS1 PS2 18 3 4 Control System 19 3 4 1 A4 Control Fault Board Schematic 10042218 19 3 4 2 A5 Interface Board Schematic 10020073...

Page 16: ...A250 Rear Panel 8 4 1 Typical Response 0dBm Input 26 TABLES 2 1 IEEE 488 Address Selection 9 2 2 RS 232 Port Settings 10 2 2 RS 232 DCE Port Pinout Diagram DB 9 Female 10 2 4 Fiber Optic Port Settings...

Page 17: ...ng adjustment of the amplifier s RF Gain during CW mode operation and provides graphical displays of the amplifier s Forward and Reflected power levels A General Purpose Interface Bus GPIB IEEE 488 2...

Page 18: ...air into or exiting from the unit will not be restricted diverted or re circulated through the unit itself in particular the flow of warm air exiting the rear of the amplifier should not be impeded Do...

Page 19: ...quipment is EAR99 The Model 125A250 is a solid state self contained air cooled broadband amplifier designed for applications where instantaneous bandwidth high gain and linearity are re quired Availab...

Page 20: ...um at 90 watts 30 dBc typical at 70 watts SPURIOUS Minus 73 dBc typical PRIMARY POWER Universal selected automatically 100 240 VAC 50 60Hz 500 watts CONNECTORS RF Input N female RF Output N female REM...

Page 21: ...Page 3 125A250 125 Watts CW 10kHz 250MHz Graphs...

Page 22: ...Page 4 125A250 125 Watts CW 10kHz 250MHz Graphs...

Page 23: ...er call 800 933 8181 Direct to Service call 215 723 0275 or email service arworld us For Faxing Orders 866 859 0582 Orders Only Please info arworld us Approved for public release by AR RF Microwave In...

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Page 25: ...o withstand without damage RF input power levels up to twenty 20 times its rated input of 1mW However signal levels higher than 20mW or transients with high peak voltages can damage the amplifier Also...

Page 26: ...ar panel is set to the 1 on position 5 Press the POWER switch the front panel vacuum fluorescent display VFD should read POWER ON when power is applied NOTE The amplifier changes state each time the P...

Page 27: ...bus is already using address 1 reset the switch to a vacant address Resetting the address requires re booting the unit Specific IEEE 488 bus commands depend on which software package you are using To...

Page 28: ...n 3 RD Pin 4 DTR Pin 5 GND Pin 6 DCR Pin 7 CTS Pin 8 RTS Pin 9 Unused 2 4 3 Fiber Optic Communications The Fiber Optic port is a serial communications bus All commands and queries through this port mu...

Page 29: ...hub must be used A cable carrying the official USB logo is recommended When connected to a PC running Windows 2000 or XP a window will pop up labeled Hardware Wizard If this PC has National Instrumen...

Page 30: ...be sent in Remote mode All spaces in commands and queries are indicated by space A COMMUNICATIONS_ERROR LF can occur if the time between commands or queries is too short or the internal RS 485 link be...

Page 31: ...steps of resolution Syntax Gxxxx Parameters Gain xxxx xxxx 0000 to 4095 Where 0000 Minimum gain 4095 Maximum gain Response Format Same as command syntax Example To set the amplifier to minimum gain s...

Page 32: ...entity of the amplifier send the following command IDN LF Response AR RF MICROWAVE INST 125A250 1 0 LF 2 4 6 5 IO Board Firmware Revision Query to get the firmware revision of the IO Board Syntax IOB...

Page 33: ...amplifier The definitions of these bit positions can be found in the table below Note Bits labeled NOT USED may be read as a bit state of 1 or 0 BIT STATE BIT POSITION BIT DESCRIPTION 0 1 NOTES x 0 NO...

Page 34: ...mplifier Syntax FSTA Parameters None Response Format FSTA space 00xx Where xx 00 to 04 Hexadecimal xx Dec Description 00 0 No Fault 01 1 Interlock 02 2 PS2 03 3 A2 Thermal 04 4 A2 Amp Example To find...

Page 35: ...hematic 10041189 The Pre Amplifier PWB Assembly consists of a variable attenuator circuit Q1 Q4 a gain stage U4 a resistive splitter R13 R14 R16 an RF power detector U6 and associated control circuitr...

Page 36: ...ontrols Q1 s current draw U5 is a comparator that monitors the output of U1 and generates a fault signal if the drain current varies outside normal operating conditions It also monitors the module tem...

Page 37: ...uts 4 Digital outputs 6 Digital inputs 5 volt tolerant 24 Analog outputs 2 2 channel encoder input 1 Inputs for a keypad 6 Display connectors 1 Serial communication jacks 2 3 4 2 A5 Interface Board Sc...

Page 38: ...Model 125A250 20 Rev B...

Page 39: ...However due to the importance of the amplifier s alignment it is recommended that when failure is caused by breakdown of any of the components in the signal circuits the amplifier be returned to the...

Page 40: ...y individuals who are familiar with the handling of microwave GaN HEMTs LDMOS and other ESD sensitive devices Troubleshooting the Model 125A250 in a logical manner can speed the solution to a problem...

Page 41: ...re not running check to see that the unit is plugged into a live outlet and that the AC line cord is plugged securely into the unit 4 Check the 5V housekeeping output voltage from PS1 this voltage sho...

Page 42: ...ooling fans are operating normally check the voltage at the A4 Control Fault Board J13 Pin 28 should be 0 1V 3 If the voltage on A4 J13 pin 28 is high check the connection to J3 5 and C53 4 3 4 Interl...

Page 43: ...262 All indicators are normal the front panel display reads Power On and the cooling fans B1 B2 are operating 1 Check the position of the RF Gain control is it set to maximum gain 2 Check the RF input...

Page 44: ...4 3 7 should be completed before conducting the RF tests specified in the following sections 1 The Model 125A250 s typical gain response at 0 dBm input and 20 dBm input is shown in Figure 4 1 The act...

Page 45: ...cover If the security label is removed and or cut the warranty of the module will be voided Vacuum tubes in the L series amplifiers traveling wave tubes in TWT amplifiers and power heads will be free...

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