AR 10044831 Operating And Service Manual Download Page 7

INSTRUCTIONS FOR SAFE OPERATION 

 

Revised 0517 

 

Observe the following safety guidelines to help ensure your own 

personal  safety and to help protect your equipment and working 

environment from potential damage. 

INTENDED USE 

This equipment is intended for general laboratory use in generating, 

controlling, and measuring levels of electromagnetic Radio Frequency 

(RF) energy. Ensure that the device is operated in a location which will 

control the radiated energy and will not cause injury or violate 

regulatory levels of electromagnetic interference. 

SAFETY SYMBOLS 

These symbols may appear in your user manual or on equipment. 

 

This  symbol is marked on the equipment when it is 

necessary for the user to refer to the manual for 

important safety information.  

The caution symbol denotes a potential hazard. 

Attention must be given to the statement to prevent 

damage, destruction, or harm. 

 

Dangerous voltages are present. Use extreme care.

 

 

 

Indicates a terminal intended for connection to an 

external conductor for protection against electrical 

shock in case of a fault, or the terminal of a protective 

earth (ground) electrode. 

 

Indicates invisible laser radiation–do not view directly 

with optical instruments. 

 

Indicates frame or chassis ground connection terminal. 

 

Indicates alternating current. 

 

Indicates this product must not be disposed of with your 

other household waste. 

 

Indicates that the marked surface and adjacent surfaces 

can attain temperatures that may be hot to the touch. 

 

EQUIPMENT SETUP PRECAUTIONS 

Review the user manual and become familiar with all 

safety markings and instructions.  Protection provided by 

the equipment may be impaired if used in a manner not 

specified by AR RF/Microwave Instrumentation (AR). 

 

Follow all lifting instructions specified in this document. 

 

Place the equipment on a hard, level surface. 

 

Do not use the equipment in a wet environment, for example, near 

a sink, or in a wet basement. 

 

Position your equipment so that the power switch is easily 

accessible.  

 

Leave 10.2 cm (4 in) minimum of 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 can result in damage 

to the equipment, intermittent shut-downs or safety hazards. 

 

Keep equipment away from extremely hot or cold temperatures 

to ensure that it is used within the specified operating range.  

 

While installing accessories such as antennas, directional 

couplers  and field probes,  take care to avoid any exposure to 

hazardous RF levels.  

 

Ensure that nothing rests on your equipment’s cables and that the 

cables are not located where they can be stepped on or tripped 

over. 

 

Move equipment with care; ensure that all casters and/or cables 

are firmly connected to the system. Avoid sudden stops and 

uneven surfaces. 

BEFORE APPLYING POWER 

Your AR equipment may have more than one power supply cable. Use 

only approved power cable(s). If you have not been provided with a 

power cable for the equipment or for any AC-powered option intended 

for the equipment, purchase a power cable that is approved for use in 

your country. The power cable must be rated for the equipment and for 

the voltage and current marked on the equipment’s electrical ratings 

label.  

Incorrectly installing or using an incompatible line 

voltage may increase the risk of fire or other hazards. To 

help prevent electric shock, plug the equipment and 

peripheral power cables into properly grounded electrical 

outlets. These cables are equipped with three-prong plugs to help 

ensure proper grounding. Do not use adapter plugs or remove the 

grounding prong from a cable. 
Do not modify power cables or plugs. Consult a licensed electrician or 

AR trained service technician for equipment modifications. Always 

follow your local/national wiring rules.  

Do not operate the equipment if there is physical 

damage, missing hardware, or missing panels. 

 

SAFETY GROUND 

This equipment is provided with a protective earth 

terminal. The mains power source to the equipment must 

supply an uninterrupted safety ground of sufficient size to 

attach  wiring terminals, power cord, or supplied power 

cord set. 

DO NOT USE this equipment if this protection is impaired. 

 

 

Summary of Contents for 10044831

Page 1: ...Operating and Service Manual 175A400 Model 10044831 Part Number Serial Number 160 School House Road Souderton PA 18964 215 723 8181 Fax 866 859 0582 www arworld us...

Page 2: ......

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...

Page 4: ......

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...

Page 6: ......

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: ...ace 10 2 4 1 GPIB IEEE 488 Communication 10 2 4 1 1 Setting the GPIB IEEE 488 Address 10 2 4 2 RS 232 Communication 10 2 4 3 Fiber Optic Serial Communication 11 2 4 4 USB Communication 12 2 4 5 Ethern...

Page 16: ...Troubleshooting 28 4 3 1 General Reading Faults 28 4 3 2 The Unit Cannot Be Operated Remotely 29 4 3 3 Thermal Fault Schematic Diagram Nos 10044790 10039874 29 4 3 4 Interlock Fault Schematic Diagram...

Page 17: ...djustment 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 inte...

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: ...gh gain and linearity are re quired Available in a stylish contemporary cabinet for benchtop use or with cabinet re moved for rack mounting The Model 175A400 when used with a sweep generator will prov...

Page 20: ...inus 20 dBc maximum at 150 watts SPURIOUS Minus 73 dBc typical PRIMARY POWER Universal selected automatically 100 240 VAC 50 60Hz 770 watts CONNECTORS RF Input N female RF Output N female REMOTES PACK...

Page 21: ...Page 3 175A400 175 Watts CW 10kHz 400MHz Graphs...

Page 22: ...Page 4 175A400 175 Watts CW 10kHz 400MHz 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...

Page 24: ......

Page 25: ...d to 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 A...

Page 26: ...ight emitting diode LED in the switch indicates whether the 175A400 power is on or off The main power supply fans are active when power is on The LCD touch display is active as long as the main circui...

Page 27: ...m 2 Connect the load to the unit s RF OUTPUT connector 3 Set the REMOTE LOCAL switch to LOCAL 4 Check to see that the MAIN POWER switch on the unit s rear panel is set to the on position 5 Press the P...

Page 28: ...tion screen Section 3 3 1 5 4 To get there from the Main Menu touch the User menu button followed by the I O menu button and finally the GPIB menu button Touching any of the buttons labeled 1 to 30 im...

Page 29: ...TIMEOUT_ERROR message followed by a Line Feed is sent out from this port The baud rate for the Fiber Optic Serial port is user selectable from the RS 232 Fiber Optic Serial Baud Rate selection screen...

Page 30: ...ated with a Line Feed character The cable required to make this connection is a USB 2 0 A B peripheral device cable The cable can be no longer than 5 meters If a longer distance is required a USB hub...

Page 31: ...e Feed character is indicated by LF in subsequent command and query definitions All queries can be sent when the Toggle switch is in the LOCAL or REMOTE position All commands can only be sent when the...

Page 32: ...Parameters State x OFF power off ON power on Response Format None No query for this command Example To turn the power on send the following command POWER ON LF To turn the power off send the followin...

Page 33: ...nd the following command RESET LF 2 4 6 4 Level Adjust This command sets the RF gain of the 175A400 Syntax LEVEL xy Parameters Parameter x GAIN RF Gain Value y For RF Gain 0 Minimum 100 Maximum Respon...

Page 34: ...ntity of the 175A400 send the following command IDN LF Response AR RF MICROWAVE INST XXXXXXXX 1 0 LF 2 4 6 6 IO Board Firmware Revision Query to get the firmware revision of the I O Board Syntax IOB P...

Page 35: ...ions can be found in the table below NOTE Bits labeled NOT USED may be read as a bit state of 1 or 0 Table 2 5 States BIT STATE BIT POSITION BIT DESCRIPTION 0 1 NOTES x 0 NOT USED 1 NOT USED 2 NOT USE...

Page 36: ...Gain 2 4 6 9 Faults Query to find the faults that have occurred with the 175A400 Syntax FSTA Parameters None Response Format FSTA space 00xx Where xx 00 to 14 Hexadecimal Table 2 6 Faults xx Decimal...

Page 37: ...ing query OH LF Response OH space space space space 37 LF The system has spent 37 Hours in an RF On state 2 4 6 11 Operating Hours Power On Query to get the Power On operating hours Syntax OHP Paramet...

Page 38: ...x firmware revision Example To get the firmware rev of the piggyback SBB assembly send the following command SBB LF Response SBB_SW_REV2 60 LF 2 4 6 13 System Serial Number Query to get the serial nu...

Page 39: ...s back to their factory defaults 2 All applicable defaults can be queried except DEFAULT FACTORY by adding a character in place of the setting parameter 3 If the ALC Lockout Feature not available on a...

Page 40: ...circuit from interlock connector pin 1 to pin 8 is required for normal operation Opening the Inhibit Interlock connection will inhibit the amplifier and display Fault Interlock on the front panel Touc...

Page 41: ...U4 a resistive splitter R13 R14 R16 an RF power detector U6 and associated control circuitry The overall gain of the pre amplifier assembly is approximately 22 dB at minimum attenuation The power dete...

Page 42: ...U1 and generates a fault signal if the drain current varies outside normal operating conditions It also monitors the module temperature via a thermistor R31 and generates a fault signal if the module...

Page 43: ...onitor and indicate the status of the amplifier Power is supplied using only a single 5 volt power supply The board offers the following Feature Quantity Open drain outputs 4 Digital outputs 6 Digital...

Page 44: ...Model 175A400 26 Rev C...

Page 45: ...e 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 factory for...

Page 46: ...described in the sections that follow 4 3 1 General Reading Faults 4 3 2 The Unit Cannot be Operated Remotely 4 3 3 Thermal Fault 4 3 4 Interlock Fault 4 3 5 Amplifier Faults 4 3 6 Low or No Power Ou...

Page 47: ...24 25 26 or 27 should be 0 1V 3 If the voltage on A12 J5 pin 23 24 25 26 or 27 is high check the connection to J3 5 and C53 4 3 4 Interlock Fault Schematic Diagram No 10044790 The Model 175A400 is eq...

Page 48: ...control is it set to maximum gain 2 Check the RF input to the unit is it the correct amplitude and frequency 3 Check the RF output connection from the unit is it correctly connected to the load Is the...

Page 49: ...before conducting the RF tests specified in the following sections 1 The Model 175A400 s typical gain response at 20 dBm input and 0 dBm input is shown in Figure 4 1 and Figure 4 2 The actual gain may...

Page 50: ...Model 175A400 32 Rev C Figure 4 3 Typical A Module Response 2 The typical response for the A1 Pre Amplifier at maximum gain setting is shown in Figure 4 4 Figure 4 4 Typical A1 Pre Amplifier Response...

Page 51: ...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...

Page 52: ......

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