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AR 250U1000 Operating And Service Manual

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Operating and
Service Manual
250U1000
Model
10045879
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 1 Operating and Service Manual 250U1000 Model 10045879 Part Number Serial Number 160 School House Road, Souderton, PA 18964 • 215-723-8181 • Fax 866-859-0582 • www.arworld.us...
  • Page 3 REGULATION (EC) 1907/2006 OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL of 18 December 2006 concerning the Registration, Evaluation, Authorization and Restriction of Substances of Very High Concern Chemicals (SVHC) Supporting documentation is held by AR RF/Microwave Instrumentation’s Quality department in Pennsylvania, United States. Place of issue:...
  • Page 5 Instructions for European EMC Conformity WARNING It is the responsibility of the user of this equipment to provide electromagnetic shielding, filtering and isolation which is necessary for EMC compliance to Directive 2014/30/EU. The equipment must therefore be operated in a shielded area which provides a sufficient level of attenuation to meet the radiated emissions and immunity specifications.
  • Page 7 The caution symbol denotes a potential hazard. Attention must be given to the statement to prevent Your AR equipment may have more than one power supply cable. Use damage, destruction, or harm. only approved power cable(s). If you have not been provided with a Dangerous voltages are present.
  • Page 8 EQUIPMENT CONTAINING LASERS risk of serious injury due to unsafe AR Field Probes (FL/PL Series) and Field Analyzers (FA product handling should be a fundamental Series) are Class 1 laser products containing embedded consideration every user.
  • Page 9 Zur Vermeidung von Personen- oder Sachschäden gilt BEVOR SIE DAS GERÄT ANSCHLIESSEN es, die Hinweise zu beachten. Ihre AR-Ausrüstung hat möglicherweise mehr als ein Stromversorgungskabel. Gefährliche elektrische Spannungen sind vorhanden. Verwenden Sie nur zugelassene Stromkabel. Falls Sie kein Stromkabel oder Höchste Vorsicht ist geboten.
  • Page 10 Die meisten Geräte müssen während des Versands, der Montage und des Gebrauchs LASER-INFORMATION transportiert werden. Jeder Nutzer sollte sich AR - Feldsonden (FL/PL-Serie) und Feldanalysatoren (FA-Serie) über das Risiko von schweren Verletzungen sind Laserprodukte der Klasse 1 mit eingebetteten Klasse-4- durch unsachgemäße...
  • Page 11 électrode de mise à la Votre équipement AR peut disposer de plus d’un câble d’alimentation terre de protection. électrique. Utilisez uniquement un ou des câbles d’alimentation approuves.
  • Page 12 éliminer le risque injustifié de blessures causées par le levage est fournie par les méthodes de travail de NIOSH (publication Les sondes de champ AR (série FL/PL) et les analyseurs de n° 94-110) disponibles sur : champ (série FA) sont des produits laser de classe 1 contenant des lasers intégrés de classe 4.
  • Page 13 Er zijn gevaarlijke elektrische spanningen aanwezig. Wees uiterst voorzichtig. VOOR HET OPZETTEN VAN DE STROOM Uw AR-apparatuur kan meer dan een netvoedingskabel bezitten. Gebruik alleen goedgekeurde netvoedingskabel(s). Koopt een Wijst op een terminal aan die bedoeld is voor aansluiting netvoedingskabel die is goedgekeurd voor gebruik in uw land als u...
  • Page 14 APPARAAT DAT LASERS BEVAT distributie, de assemblage en het gebruik moeten worden behandeld, moet het risico AR-terreinsondes (FL/PL-serie) en terreinanalysatoren (FA- op ernstig letsel als gevolg van een serie) zijn laserproducten van klasse 1 met ingesloten onveilige behandeling van het product een klasse 4-lasers.

  • Page 15: Table Of Contents

    TABLE OF CONTENTS TABLE OF CONTENTS ....................i GENERAL INFORMATION ................1 General Description ....................1 Specifications ......................1 Power Supplies ....................... 1 Installation ......................2 1.4.1 Location ........................2 1.4.2 Power ........................2 OPERATING INSTRUCTIONS ................ 7 General ........................7 Amplifier Front and Rear Panels ................
  • Page 16 4.3.7 Low or No Power Output (RF Test) (Schematic Diagram No. 10041561 and 10042997) ..........................31 FIGURES Model 250U1000 Front Panel ................7 Model 250U1000 Rear Panel ................. 8 Menu Map ......................9 Typical Response at -20dBm Input ..............31 Typical Response at 0dBm Input .................

  • Page 17: General Information

    POWER SUPPLIES The Model 250U1000 contains two switching power supplies. The input voltage range to the power supply is 100–240 VAC, 50/60Hz, selected automatically. The AC input power is approximately 700 watts. PS1 is a multiple output supply. PS1 has a +5 volt, standby supply for the A12 Control/Fault board and the A14 Interface board used for the remote interfaces.

  • Page 18: Installation

    Select an operating location that will permit air to circulate freely around the amplifier’s cabinet. The Model 250U1000 utilizes air cooling and should be located where the normal flow of 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.

  • Page 19: Specifications

    The export classification for this equipment is curs due to cooling blockage or fan failure. EAR99. The Model 250U1000 is equipped with a Digi- tal Control Panel (DCP) which provides both AR RF/Microwave Instrumentation...

  • Page 20: Power

    DIRECTIVE 2011/65/EU HARMONIC DISTORTION: Minus 20 dBc maximum at 200 watts; minus 30 dBc typical at 200 watts EXPORT CLASSIFICATION: EAR99   SPURIOUS: Minus 73 dBc typical Ordering Options Contact your AR RF/Microwave Instrumentation Sales Associate for specific model configuration pricing.
  • Page 21 Page 3 Graphs 250U1000  250 watts CW  100kHz–1000MHz...
  • Page 22 Page 4 Graphs 250U1000  250 watts CW  100kHz–1000MHz...
  • Page 23 Page 5 Envelope Drawing 250U1000  250 watts CW  100kHz–1000MHz To order AR Products, call 215.723.8181. For an applications engineer 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 Instrumentation...

  • Page 25: Operating Instructions

    2. OPERATING INSTRUCTIONS GENERAL Operation of the Model 250U1000 broadband amplifier is quite simple. The amplifier’s input signal, whether swept or fixed in frequency, is fed into the jack marked RF INPUT, and the amplifier’s output signal is taken from the jack labeled RF OUTPUT. The unit is turned on by activating the front panel POWER switch. In the event of a major malfunction, protection is provided by a circuit breaker located on the unit’s rear panel.

  • Page 26: Local Control Interface

    2.2.1.2 Power Button The momentary POWER button turns the main power to the 250U1000 on and off. The status of the green light-emitting diode (LED) in the switch indicates whether the 250U1000 power is on or off. The main power supply fans are active when power is on.

  • Page 27: Menu Map

    Model 250U1000 2.2.1.5 Menu Map Figure 2-3 shows the menu map for the 250U1000. The screens depicted are only example screens. The actual values and settings will be different on the actual amplifier depending on user settings and operating conditions.

  • Page 28: Remote Control Interface

    Model 250U1000 REMOTE CONTROL INTERFACE This section describes remote operation of the 4U MPC using the provided General Purpose Interface Bus (GPIB), RS-232, Fiber-Optic Serial, Universal Serial Bus (USB), and Ethernet ports connected to a remote device such as a personal computer. All ports are active at all times, however only one port may be used at a time.

  • Page 29: Fiber-Optic Serial Communication

    Model 250U1000 The RS-232 port is setup as a Data Circuit-terminating Equipment (DCE) port. When connecting to a Personal Computer (PC) a straight one-to-one cable should be used. A null modem is NOT needed. The settings and pinout diagram for this port can be found below.

  • Page 30: Usb Communication

    This port can be used in conjunction with either an AR model IF7000 RS-232 to Fiber-Optic Interface (1200 to 9600 baud only) or an AR model IF7001 USB to Fiber-Optic Interface (19200 baud only). Note that these devices use SMA connectors so a fiber-optic cable is needed with ST connectors on one end and SMA connectors on the other.

  • Page 31: Remote Commands

    Lantronix Ethernet devices. This list of found devices will include any connected AR Ethernet devices. By selecting one of the connected devices from the list, its IP address and subnet mask can be changed along with a number of other settings.

  • Page 32: Power On/Off

    Model 250U1000 Table 2-4. Relationship between 4U MPC Controls and Remote Communication AC Power and Power Toggle Switch Remote Circuit Breaker Communication LOCAL REMOTE Command Query √ √ √ √ √ √ √ √ √ √ √ √ √ √...

  • Page 33: Reset Faults

    Model 250U1000 2.4.6.3 Reset Faults This will clear all faults, if possible. Syntax: RESET Parameters: None Response Format: None (No query for this command) Example: To clear any faults, send the following command: RESET<LF> 2.4.6.4 Level Adjust This command sets the RF gain of the 4U MPC.

  • Page 34: Identity

    Model 250U1000 2.4.6.5 Identity Query to identify the 4U MPC. Syntax: *IDN? Parameters: None Query only (always requires a ? character) Response Format: f,m,n,<LF> Where: f = manufacturer m = model designation n = firmware revision Example: To get the identity of the 4U MPC, send the following command: *IDN?<LF>...

  • Page 35: State

    Model 250U1000 2.4.6.7 State Query to find the state of the 4U MPC. Syntax: STATE? Parameters: None Response Format: STATE=<space>xyza<LF> Where: x, y, z, and a are each an ASCII character representing a hexadecimal character. They can be 0 to 9 or A to F.

  • Page 36: Rf Gain

    Model 250U1000 2.4.6.8 RF Gain Query to get the RF gain. Syntax: RFG? Parameters: None Response Format: RFG=<space>x<LF> Where: x = 0000 to 0100 Example: To find out the RF gain of the 4U MPC, send the following query: RFG?<LF>...

  • Page 37: Operating Hours (Rf On)

    Model 250U1000 2.4.6.10 Operating Hours (RF On) Query to get the RF On operating hours. Syntax: Parameters: None Response Format: OH=x<LF> Where: x = 0 to 100000 Units are Hours. Values can be up to six digits in length. Leading zeros are read as spaces.

  • Page 38: Sbb (Piggyback) Firmware Revision

    Model 250U1000 2.4.6.12 SBB (Piggyback) Firmware Revision Query to get the firmware revision of the piggyback SBB assembly. Syntax: *SBB? Parameters: None Query only (always requires a ? character) Response Format: SBB_SW_REVx<LF> Where: x = firmware revision Example: To get the firmware rev. of the piggyback SBB assembly, send the following command: *SBB?<LF>...

  • Page 39: Ac Power-On Defaults

    Model 250U1000 2.4.6.14 AC Power-On Defaults Default settings that are applied at AC mains power-on can be changed by adding the following prefix to select commands. Syntax: DEFAULT: Compatible commands: Level Adjust LEVEL:GAIN LEVEL:DET (Not available on all models) LEVEL:THR...

  • Page 40: Interlocks

    Model 250U1000 2.4.7 Interlocks The 4U MPC has one interlock circuit that is wired to the rear panel Safety Interlock connector. This interlock requires a normally closed external circuit to allow the unit to function. 2.4.7.1 Inhibit Interlock This interlock circuit inhibits RF amplification by disabling the low level (A1) and Power (A2 & A3) amplifier stages.

  • Page 41: Theory Of Operation

    3. THEORY OF OPERATION INTRODUCTION The Model 250U1000 RF amplifier consists of a 0.1-1000 MHz RF amplifier assembly. The RF amplifier assembly consists of a Pre-Amplifier (Pre-Amp), one Driver Amplifier, one 4-Way Splitter, four U-Modules and a 4-Way Combiner. The power supply section consists of an AC input filter, a circuit breaker, +5V, -15V, +24V and a +28V power supply, an Operate/Control circuit, and an interface board.

  • Page 42: A2 U Series Driver Module (Schematic 10041561)

    Model 250U1000 3.2.2 A2 U Series Driver Module (Schematic 10041561) The 10W driver Module consists of RF matching circuits, an RF transistor, a DC current control circuit, a DC switching circuit, and a fault detection circuit. The RF input is fed to a balun transformer (T1). The push-pull output signal of the balun transformer is connected to the gates of Q1 and Q2.

  • Page 43: A8 Four-Way Combiner

    Model 250U1000 3.2.5 A8 Four-Way Combiner A8 is a Four-Way combiner with impedance matching. The combiner operates in a zero-degree configuration. The combiner is designed to tolerate loss of input signals at full output power. POWER SUPPLIES (PS1, PS2) Power supply PS1 supplies a +5VDC housekeeping supply for the control system assemblies A12A1 Control/Fault Assy and A14 Interface Board.
  • Page 44 Model 250U1000 Rev A...

  • Page 45: Maintenance

    4. MAINTENANCE GENERAL MAINTENANCE INFORMATION The Model 250U1000 requires very little maintenance since it is a relatively simple instrument. It is built with etched circuit wiring and solid state devices that will ensure long, trouble free life. However, should trouble occur special care must be taken in servicing to avoid damage to the devices or the etched circuit board.

  • Page 46: Troubleshooting

    GaN HEMTs and other ESD-sensitive devices. Troubleshooting the Model 250U1000 in a logical manner can speed the solution to a problem. The settings of potentiometers (pots), capacitors (caps), or other variables should not be disturbed until other problems have been eliminated.

  • Page 47: General - Reading Faults

    RF energy when these doors are opened. NOTE: The Model 250U1000 is shipped with a mating connector, which has a jumper between Pins 1 and 8, installed in the rear panel interlock connector. The unit will not operate unless the interlock circuit is closed.

  • Page 48: Amplifier Faults (Schematic Diagram Nos. A2 - 10042781 And 10041561; A4 Thru A8 - 10042997 And 10044731)

    Model 250U1000 3. After checking for safety, try to clear the Interlock Fault from the front panel by using the RESET switch. 4. If the Interlock Fault will not clear, check for continuity in the External Interlock Circuit (Pin 1 to Pin 8 in the connector, which mate with J3 in the rear panel).

  • Page 49: Low Or No Power Output (Rf Test) (Schematic Diagram No. 10041561 And 10042997)

    1. The Model 250U1000’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 vary considerably from that shown in Figure 4-1 but should be ≥ 53 dBm across the band at 0dBm input.

  • Page 50: Typical U Final Module Response

    Model 250U1000 Figure 4-3. Typical U Final Module Response 2. Typical A2 Driver Module response is shown in Figure 4-3. Figure 4-4. Typical Driver Module Response Rev A...

  • Page 51: Typical A1 Pre-Amplifier Response

    Model 250U1000 3. The typical response for the A1 Pre-Amplifier (at maximum gain setting) is shown in Figure 4-4. Figure 4-5. Typical A1 Pre-Amplifier Response Rev A...
  • Page 52 Model 250U1000 Rev A...
  • Page 53 These modules are not field-repairable and should never be opened outside of AR’s Microelectronics Lab. The modules in these product lines have a security label on two sides of the modules between the housing and lid/cover. If the security label is removed and or cut, the warranty of the module will be voided.

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