Product User Manual - Gerling Applied Engineering, Inc.
Contents
1. Product User Manual Model GA4006 3kW Magnetron Head Document 930035 Rev 5 GERLING APPLIED I ENGINEERING INC P O Box 580816 Modesto CA 95358 www 2450mhz com Product User Manual Page 2 Model GA4006 3kW Magnetron Head REVISION HISTORY REV DESCRIPTION DATE APPROVAL 4 Misc Updates 13FEB04 JFG 5 Modified remote control interface 28MARO05 JFG WARRANTY Products manufactured and sold by Gerling Applied Engineering Inc GAE are warranted to be free of defects in materials and workmanship under normal use and service for a period of twelve 12 months from the date of original shipment GAE s obligation under this warranty is limited to repairing or replacing at GAE s option all non consumable component parts Consumable parts are specifically excluded from this warranty and may include but are not be limited to magnetrons fuses lamps seals o rings v belts and fluids All warranty repairs are to be done at GAE s facility or as otherwise authorized by GAE shipping charges for warranty repair or replacement are the purchaser s responsibility unless otherwise agreed to by GAE This warranty supercedes all other warranties expressed or implied No warranty is given covering the product for any particular purpose other than as covered by the applicable product specifications GAE assumes no liability in any event for in2. GAE model GA8401 for waveguide connections General Specifications Output Power max 3 0 kW Magnetron Water cooled Panasonic 2M265 or equivalent Output Waveguide WR284 Output Flange 584 2450 MHz 30 MHz Cooling Water 1 0 gpm nominal 0 5 gpm min flow 35 max inlet temp dew point min inlet temp 70 psi max inlet pressure Air Provided by internal fans 2003 2005 Gerling Applied Engineering Inc Modesto CA Product User Manual Page 6 Model GA4006 3kW Magnetron Head Controls Mw Start pushbutton Mw Stop pushbutton Mw Power Adjust 10 turn Dial System Ready Green LED HV On Red LED Power Adjust Selector toggle switch Interlocks Waveguide flange Access cover Magnetron over temperature Water flow Mating Connectors supplied with GA4006 High Voltage Lemo series 1Y Remote Control 25 pin male D subminiature Coupler Power Interface 9 male D subminiature two connectors provided System Block Diagram GA4106 POWER SUPPLY GA4006 MAGNETRON HEAD HV COAX FEMALE CONN 3 7 COND CPC 14 COND CPC FEMALE CONN 2 25 COND D SUB FEMALE CONN 5 FEMALE CONN 4 J1 MALE 25 COND D SUB J2 MALE FEMALE J4 TO CUSTOMER REMOTE CONTROL 9 COND D SUB MODEL GA3301 J3 MALE FEMALE ss COUPLER PWR INTERFACE TO CUSTOMER WAVEGUIDE COUPLER 12
3. AWG GRN 9 D SUB MODEL GA3301 GND STUD GND STUD FEMALE J6 COUPLER PWR INTERFACE TO CUSTOMER WAVEGUIDE COUPLER 7 COND CPC P 190 250 VAC 50 60 HZ MALE conn p1 SUME 3 PHASE 3 WIRE GROUND 16 AMP PHASE 208 VAC 9 COND D SUB MALE CONN 6 TO CUSTOMER RS 485 INTERFACE 9 COND D SUB FEMALE CONN 7 CUSTOMER RS 232 INTERFACE NOTES UNLESS OTHERWISE SPECIFIED 1 PHANTOM LINES INDICATE OPTIONAL OR CUSTOMER PROVIDED COMPONENTS MATING CONNECTORS PROVIDE FOR J4 THRU J6 ON GA4006 MAGNETRON HEAD 2003 2005 Gerling Applied Engineering Inc Modesto CA Product User Manual Page 7 Model GA4006 3kW Magnetron Head GA4006 Schematic Diagram TO P S CONNECTOR 3 P1 HIGH VOLTAGE 5kV Q1 TO P S CONNECTOR 4 J1 LINE VOLTAGE PHASE CONTROLLED FILAMENT VOLTAGE LINE VOLTAGE NEUTRAL CHASSIS GROUND MW ON INDICATOR LINE VOLTAGE NOT USED NOT USED TO P S CONNECTOR 5 J3 ALARM RELAY CONTACT COM ALARM RELAY CONTACT NO REV POWER SENSE 0 10 VDC REV POWER SENSE COM FWD POWER SENSE 0 10 VDC FWD POWER SENSE COM MW ENABLE VOLTAGE 24 VDC MW ENABLE CONTROL COM MW POWER CONTROL 0 10 VDC 55 REMOTE MW POWER CONTROL COM NOT USED NOT USED NOT USED NOT USED EXTERNAL INTERLOCK LOOP 424 VDC
4. EXTERNAL INTERLOCK LOOP RTN MW HIBERNATE VOLTAGE 424 VDC MW HIBERNATE CONTROL COM MW READY SIGNAL VOLTAGE 24 VDC MW READY SIGNAL OUTPUT ALARM CODE BIT O ALARM CODE BIT 1 ALARM CODE BIT 2 ALARM CODE BIT 3 ALARM CODE COMMON TO P S CONNECTOR 2 J2 ARC DETECTOR MAGNETRON THERMAL SWITCH AIR PRESSURE SWITCH WATER FLOW SWITCH COVER INTERLOCK READY GREEN DS1 COVER INTERLOCK MAGNETRON THERMOCOUPLE 4 CHASSIS GROUND MAGNETRON THERMOCOUPLE ANALOG COMMON COVER FLANGE FORWARD POWER DETECTOR ANALOG COMMON REVERSE POWER DETECTOR 12 VDC NOT USED NOT USED CHASSIS GROUND STUD P4 REMOTE CONTROL RRR ERAS RP AI APIS N N D APA i Er N EREA P5 FWD COUPLER POWER INTERFACE C M x o P6 REV COUPLER POWER INTERFACE C t es 2003 2005 Gerling Applied Engineering Inc Modesto CA Page 8 Product User Manual Model GA4006 3kW Magnetron Head ing WI Outline Dra 027 1 ONIS aNnouo AfidNI 30193130 M3MOd AfidNI 540123130 HOLIMS 319901 MOLO3I3S 1 NM3MOd 01 5 M3MOd HOLIMS 9015 MN NoLinBHShd N3349 HOLIMS INVIS NOLVOIONI AQY33 NOLVOIONI AH 7IOJINOO
5. of the chassis The recommended wire is 12 AWG UL 1007 or equivalent with green or green yellow insulation WARNING Failure to provide an adequate ground connection between the magnetron head and power supply chassis can expose the operator to high voltage and result in severe injury or death Remote Control Connections The microwave power system can be remotely controlled by means of analog signals or by either one of two digital serial interfaces RS 232 and RS485 Connections for the serial interfaces are provided at the rear panel of the GA4106 power supply see GA4106 product user manual for more information All connections for remote control of the microwave power system using analog signals are made to the GA4006 magnetron head at connector J4 With only minor exceptions the pinout functionality of connector J4 on the GA4006 is identical to that of connector 5 on the GA4106 Provided with the GA4006 is a mating connector with jumpers that are necessary for system operation in the absence of any other remote control circuitry CAUTION not attempt to operate the system by connecting remote control directly to connector 5 of the GA4106 power supply Remote control connections should be made ONLY to connector J4 on the GA4006 magnetron head Figure 2 below is a diagram of a recommended electrical circuit configuration for basic remote control functionality While other configurations are possible the following interface
6. requirements must be met for safe and reliable operation Several other configurations are possible for analog remote control depending on the desired functionality See the GA4106 product user manual for a complete description of the analog control interface 2003 2005 Gerling Applied Engineering Inc Modesto CA Product User Manual Page 13 Model GA4006 3kW Magnetron Head 1 lan 25 MALE D SUB ALARM RELAY CONTACT COM le ALARM RELAY CONTACT NO te REV POWER SENSE 0 10 VDC 22 REV POWER SENSE COM 192 FWD POWER SENSE 0 10 VDC 52 FWD POWER SENSE COM 162 N C he MW ENABLE CONTROL 24 VDC 2 MW START MOMENTARY MW POWER CONTROL 0 10 VDC S lt MW POWER CONTROL COM 182 MW POWER ADJUST Be 10K W CONTROL REF 1 CHASSIS GROUND le 24 VDC OUT 29 EXTERNAL INTERLOCK LOOP 24 VDC 19 EXTERNAL INTERLOCK LOOP RTN 22 oye EXTERNAL INTERLOCK DEVICE MW HIBERNATE VOLTAGE 24 VDC ue MW HIBERNATE CONTROL COM a MW READY SIGNAL VOLTAGE 24 VDC 1 i MW STOP MOMENTARY MW READY SIGNAL OUTPUT 24 ALARM CODE O Be ALARM CODE BIT 1 2k VERE Caner ALARM CODE BIT 3 lt TOGETHER AND 24 VDC MUST BE GUASMSCSDESCONMON ES SUPPLIED TO PIN 12 RE Figure 2 Recommended circuit for basic remote control functionality connected to J4 Pin 20 24 VDC Supply Output This pin provides a regulated 24 VDC which can be us
7. two hoses from the magnetron water fittings 6 Remove the four 10 32 screws which secure the magnetron to the chassis and carefully lift out the magnetron 7 Disconnect the two wires connected to the thermal switch mounted to the side of the magnetron 8 Connect the two thermal switch wires to the contacts of the thermal switch mounted on the new magnetron 9 Install the new magnetron in the reverse order of removal 10 Connect the cooling water supply and check for water leaks 11 Replace the chassis cover 2003 2005 Gerling Applied Engineering Inc Modesto CA
8. 06 this unit makes a completely integrated microwave power generation system ideal for laboratory or stand alone system applications Local controls provide complete functionality safely and conveniently near the work area Microwave output power can be adjusted at either unit or remotely via a fully functional remote control interface Connections are also provided for interfacing with the model GA3301 Power Coupler Interface available separately for monitoring forward and reverse microwave power Serviceability of the GA4006 was a primary consideration in its design Removal and replacement of the internal magnetron can be done in minutes using standard tools The GA4006 is designed to use the Panasonic 2 265 magnetron and can also accommodate other water cooled magnetrons available from multiple distributors Contact GAE for more information on magnetron compatibility A powder coated steel enclosure provides rugged durability while multiple safety interlocks meet compliance requirements Convenient mounting holes and brackets facilitate bench top use or integration into process systems The simplicity of the GA4006 also facilitates integration with almost any type of custom designed magnetron power supply Optional features include alternate flange configurations arc detection and custom private labeling and colors Model GA4006 features the popular WR284 Q D quick disconnect round flange that uses the convenient single screw clamp
9. AlddNS N3MOd TOYLNOD 310N33 ASIN NOLVTLLN3A SNOLLO3NNOO 331VM ONNOOD M3dWna su388ns xv 318VO 0021 n vac 9n 7 M3dvl 0 0 BZHM 39Nv14 178170 3ain93AvM HOLMS 39NV13 Nid IN3AN9rv 39Nv14 WOLLOS dOL M3A00 553257 OZ v L S310H ONLLNNOW o 0000000000000000 o Q O00000000000000 o 000000000000000 020208020902090 9 0009090909090209 131100 NOLVIIIN3A 1 Modesto CA 2003 2005 Gerling Applied Engineering Inc Product User Manual Page 9 Model GA4006 3kW Magnetron Head INSTALLATION Preliminary Inspection Upon arrival at the installation site the GA4006 magnetron head should be thoroughly inspected for damage or wear caused during shipping Any visible damage to the packaging material or the magnetron head itself should be noted and reported immediately to the shipping company in accordance with standard claims procedures The following components are included a GA4006 Magnetron Head b Mating connector set for remote control and 2x coupler power interface c Product User Manual this document Waveguide Configuration The GA4006 magnetron head can be connected to and used with any common waveguide component having a co
10. cidental or consequential damages financial losses penalties or other losses incurred in conjunction with the use of GAE products DOCUMENT CONVENTIONS NOTE Means the reader should take note Notes contain helpful information suggestions or references to other sections chapters or documents CAUTION Means the reader should be careful You are doing something that might result in equipment damage or loss of data WARNING Means danger A situation exists that could cause bodily injury or death All personnel must be aware of the hazards involved with high voltage electrical circuitry and high power microwave devices Pb 2003 2005 Gerling Applied Engineering Inc Modesto CA Product User Manual Page 3 Model GA4006 3kW Magnetron Head WARNING All magnetron heads manufactured by GAE Inc are capable of producing a microwave field that is potentially hazardous to operating personnel They must never be connected or operated in a manner that allows a field in excess of 10 milliwatts per square centimeter to be generated in an area accessible to operating personnel Contact GAE Inc for technical support prior to installation and or operation of these units if there is any question or concern about microwave leakage All waveguide flange and electrical cable connections throughout the system must be secure prior to operation Never operate the microwave generator without a properly rated absorbing load at
11. clamps Alignment pins can be installed into either of two threaded holes centered above and below the waveguide broadwalls For obvious reasons the pins must not be installed such that they are opposite each other on mating flanges Microwave Leakage Regulatory limits for microwave leakage relate to standards for human safety and interference with other electronic devices Standards for human safety as adopted by OSHA the International Electrotechnical Commission IEC and other regulatory agencies limit leakage to 5 mW cm measured at 5 cm from the leakage source under normal operating conditions and 10 mW cm at 5 cm from the source under abnormal operating conditions The U S Federal Communications Commission FCC has established regulations limiting the emission of energy at frequencies outside the ISM bands All waveguide components meets these requirements when properly connected to another waveguide component Water Flow Requirements A source of water must be connected to the GA4006 that provides an adequate rate of flow The nominal water flow rate is 1 0 gpm However the flow rate must be maintained such that the outlet water temperature does not exceed 150 The minimum allowable flow rate depends on the level of incident microwave power and the inlet water temperature CAUTION The minimum inlet temperature of the cooling water must be above the ambient dew point temperature Allowing the cooling water i
12. e cable is permanently fixed to the magnetron head and connects to the GA4106 power supply connector 3 with a male locking high voltage coaxial connector P1 A ground return path is provided by the cable shield Filament and Fan Power Cable supplied with GA4106 This 7 conductor cable with CPC style connectors delivers power from the GA4106 power supply connector 4 to the magnetron head connector J1 for the filament transformer and internal cooling fan Interlock and Detector Signal Cable supplied with GA4106 This 14 conductor cable with CPC style connectors delivers the interlock status and optional microwave power detector signals power from the magnetron head connector J2 to the GA4106 power supply connector 2 Control Signal Cable supplied with GA4106 This 25 conductor cable with subminiature D style connectors delivers the operational control and status signals between the magnetron head connector J3 to the GA4106 power supply connector 5 Chassis Ground Connection The chassis of GA4006 magnetron head must be connected directly to the chassis of the magnetron power supply Connection to the magnetron head chassis is at the ground stud located at the 2003 2005 Gerling Applied Engineering Inc Modesto CA Product User Manual Page 12 Model GA4006 3kW Magnetron Head side near the electrical connectors Connection to the power supply chassis is at the ground stud located at the rear
13. ed for a variety of control functions in addition to the basic functions described above The maximum allowed current draw in addition to that required for the basic functions is 100 mA Pin 19 Microwave Control Reference Output 10 VDC This is a DC voltage generated within the magnetron head for use by a remote power control potentiometer Because the current output of the voltage source is limited and for maximum operational stability this voltage should not be used for any other purpose Pin 5 Microwave Power Control Input 0 10 VDC The level of microwave power delivered from the magnetron head is controlled by varying the voltage present at this pin from 0 to 10 VDC The use of a precision multi turn 10K Ohm potentiometer rated for 72 Watt is recommended for 2003 2005 Gerling Applied Engineering Inc Modesto CA Product User Manual Page 14 Model GA4006 3kW Magnetron Head high control resolution and stability The voltage provided at pin 19 see above may be used as a reference or a separate voltage source referenced to the same ground point can also be used The toggle switch on the front panel of the magnetron head must be set to Remote for this voltage to be functionally active Pin 18 Microwave Power Control Common This pin is connected internally to ground reference It should be used only for the power control potentiometer in order to minimize noise and cross talk with other circuit
14. er supply then enters the standby condition if all interlocks are satisfied This standby condition is indicated on the front panel of the GA4106 power supply and by illumination of the green System Ready indicator located on the front panel of the GA4006 magnetron head The system is now ready to start generating microwave power Pressing the Mw Start button on the front panel of the magnetron head will enable the delivery of high voltage to the magnetron This microwave on condition is indicated by illumination of the red Mw On indicator located on the magnetron head front panel The actual level of microwave power output will be determined by the setting of the microwave power control as explained below Pressing the Mw Stop button on the magnetron head will stop the generation of microwave power and return the system to the standby condition NOTE Disabling any of the system interlocks will also immediately terminate microwave power However this will place the power supply in the alarm condition which requires a repeat of the warm up period before returning to the standby condition Disabling any of the interlock functions while microwave power is on will immediately turn off microwave power and place the system into a fault condition When in this condition the Mw On indicator will still be on but the System Ready indicator will be off The display on the power supply front panel will provide an indica
15. mpatible flange see below Mounting can be in any convenient position and orientation Ideally the magnetron head should be connected directly to an isolator or 3 port circulator and dummy load to ensure adequate protection of the magnetron from reverse power Figure 1 illustrates a typical waveguide configuration GENERATOR CIRCULATOR POWER MONITOR TUNER SHORT CIRCUIT TERMINATION Figure 1 Typical waveguide configuration for process heating Flange Connections The waveguide flange of the magnetron head must be properly connected to another waveguide component or series of components that provide an adequate load for the microwave power being generated Bolts and nuts must be installed at all 2003 2005 Gerling Applied Engineering Inc Modesto CA Product User Manual Page 10 Model GA4006 3kW Magnetron Head flange bolt holes prior to operation Model GA4006 is configured with a flange designed for used with the GA8401 Quick Release clamp when connected to another similarly designed flange This flange can also be connected to any other standard WR284 round flange UG 584 U using suitable fastener hardware Flange Alignment Pins e Each waveguide flange connection that uses a quick release clamp requires two alignment pins for proper alignment of the adjacent waveguide sections All GAE waveguide components include one alignment pin for each flange designed for use with quick release
16. nlet temperature to drop below the ambient dew point can allow moisture condensation inside the microwave generator and or waveguide circulator and cause equipment damage Water Fitting Connections Standard 1 4 NPT female fittings are provided at the front of the GA4006 enclosure The source of water can be connected to either 2003 2005 Gerling Applied Engineering Inc Modesto CA Product User Manual Page 11 Model GA4006 3kW Magnetron Head fitting It is recommended that a thread sealant such as Teflon pipe thread tape be used to ensure a leak free connection Care should be taken to prevent debris from falling into the fitting holes Since there may be other waveguide components in the system that require cooling water it may be possible to run all of the water cooling connections in series In this case it is recommended that the magnetron head be connected last in the series Caution should also be exercised to ensure that the resulting water flow rate is adequate for all components Power Supply Connections All electrical power required for operation of the magnetron head is provided by the model GA4106 power supply All cable connections are located at one side of the magnetron head The following describes the basic purpose of each cable required for operation High Voltage Cable supplied with GA4006 This shielded cable delivers approximately 5kV DC with respect to ground to the magnetron cathode Th
17. otentiometer is set to 50 power and the power supply potentiometer is set to zero then microwave output power will be 5096 2 If the power supply potentiometer is then adjusted to 7596 then the microwave output power will be 75 2003 2005 Gerling Applied Engineering Inc Modesto CA Product User Manual Page 18 Model GA4006 3kW Magnetron Head MAINTENANCE AND CALIBRATION The GA4006 magnetron head is designed to be maintenance free with the exception of magnetron replacement The magnetron is considered a consumable component and has a life expectancy of 3000 to 5000 hours depending on operating conditions and usage No calibration is necessary Although the GA4006 magnetron head is a very rugged and stable device it can be subject to damage due to improper operating conditions or mishandling If damage occurs the magnetron head should be returned to GAE for repair Contact GAE for information on repair services Magnetron Removal and Replacement The magnetron can be replaced by the user as follows 1 Turn off the power supply and disconnect line power 2 Disconnect the source of cooling water both supply and drain 3 Turn the four captive cover screws turn and remove the cover 4 Remove the brown filament lead insulator block and disconnect the filament transformer and high voltage leads from the magnetron 5 Loosen the compression fittings located at the side of the magnetron and disconnect the
18. ry Pin 10 External Interlock Loop 24 VDC This signal is present when all internal interlocks of the magnetron power supply are satisfied and the Mw Stop switch on the front panel of the magnetron head is not being pressed This signal must be present for operation of the magnetron head and microwave power generation Pin 23 External Interlock Loop Common The voltage present at pin 10 must be returned through pin 23 before microwave power can be started A dry contact interlock device and or remote Mw Stop switch momentary normally closed may be connected in series between pins 10 and 23 Opening either of these two devices will cause microwave power generation to cease Pin 12 Mw Ready Signal Voltage Input 24 VDC Connecting 24 VDC to this pin provides voltage to the emitter input of an opto isolated transistor used to drive the system Ready status indicator This connection is required for the Ready indicator on the GA4006 magnetron head to function Connecting a momentary Mw Stop switch in series provides a convenient means to disable microwave power NOTE when remote control is not used pins 10 and 23 on connector J4 must be connected together 24 VDC must be supplied to pin 12 The mating connector supplied with the GA4006 includes jumpers for these connections Pin 24 Mw Ready Signal Output 24 VDC This pin is connected to the collector output of the same opto isolated tran
19. se modules are powered by 24 VDC from the GA4006 and their output signals are delivered to the GA4106 power supply for display and additional signal processing Other interface modules having similar input and output specifications can also be used Figure 3 below illustrates the required interface connections L 9 PIN MALE D SUB COMMO COMMO OUTPUT SIGNAL 0 10 VDC 5 0 10 VDC COMMO 2 INPUT POWER 24 VDC 24 VDC COMMO Pam INTERLOCK Loop PINS 7 AND 8 MUST BE 8 CONNECTED TOGETHER WHEN INTERLOCK LOOP INTERFACE IS NOT USED COMMO E i Figure 3 Mating connections for the coupler power interface connected to J5 and J6 NOTE Pins 7 and 8 on connectors J5 and J6 must be connected together when interface is not used Mating connectors supplied with the GA4006 include jumpers for these connections 2003 2005 Gerling Applied Engineering Inc Modesto CA Product User Manual Page 16 Model GA4006 3kW Magnetron Head OPERATION Basic Operation Fault Condition Line power is applied to the system when the main power switch on the GA4106 power supply is first turned on The power supply then enters a power on condition for a few seconds during which internal diagnostic functions are performed This condition is followed by a warm up period of a few seconds during which the magnetron filament is being heated The pow
20. sistor referred to for pin 12 above This pin will be at ground potential when the system is in a standby condition and 24 VDC when the magnetron power supply is ready to begin delivering high voltage Pin 17 Mw Enable Control Input 24 VDC This pin is used to enable microwave power When all 2003 2005 Gerling Applied Engineering Inc Modesto CA Product User Manual Page 15 Model GA4006 3kW Magnetron Head interlocks are satisfied and the system is in standby mode momentarily connecting pin 17 to 24 VDC will enable the power supply to deliver high voltage to the magnetron head Microwave power will then be generated according to the setting of the microwave power control potentiometer s The recommended device for making this connection is a momentary normally open switch WARNING serious injury and or death can result from the use of a non momentary switching device for enabling high voltage and microwave power The use of a latching device can allow high voltage to be enabled inadvertently and unknowingly such as can happen upon resetting an interlock device It is strongly recommended that a momentary switching device be used for the high voltage enable function Coupler Power Interface Connections e The GA4006 magnetron head features connections J5 and J6 for monitoring forward and reverse microwave power using the GAE model GA3301 Coupler Power Interface available separately modules The
21. tached To ensure safe operation and prevent microwave leakage the equipment must be periodically inspected and maintained as required or recommended 2003 2005 Gerling Applied Engineering Inc Modesto CA Product User Manual Page 4 Model GA4006 3kW Magnetron Head TABLE OF CONTENTS EQUIPMENT DESCRIPTION 5 iterare ere eo Cre nnn nnE m Ry yuRe Enna nan 5 General Specifications 5 Mating Connectors supplied with GA4006 6 System Block Diagram 6 GA4006 Schematic Diagram 7 INSTALLATION e P 9 Preliminary Inspection 9 Waveguide Configuration 9 Flange Connections 9 Flange Alignment Pins 10 Water Flow Requirements 10 Water Fitting Connections 10 Power Supply Connections 11 Chassis Ground Connection 11 Remote Control Connections 12 Coupler Power Interface Connections 15 OP ERATION mE 16 Basic Operation 16 Fault Condition 16 Microwave Power Control 17 MAINTENANCE AND CALIBRATION 18 Magnetron Removal and Replacement 18 2003 2005 Gerling Applied Engineering Inc Modesto CA Product User Manual Page 5 Model GA4006 3kW Magnetron Head EQUIPMENT DESCRIPTION The GA4006 Magnetron Head is specially designed for use with the GA4106 Switch Mode Power Supply Together with the line power and control cable set provided with the GA41
22. tion of the nature of the fault To clear the fault condition and reset the system the disabled interlock function if the cause of the fault must be restored and the Mw Stop switch must be pressed After a brief timeout period a few seconds the system will return to the standby condition and allow microwave power to be restarted 2003 2005 Gerling Applied Engineering Inc Modesto CA Product User Manual Page 17 Model GA4006 3kW Magnetron Head Microwave Power Control The level of microwave power generated is determined by the settings of the power control potentiometers or remote analog input signal Control potentiometers are located on the front panels of both the GA4106 power supply and GA4006 magnetron head A toggle switch located on the front panel of the magnetron head selects which power control is active The available settings are Mag Head up position Power Supply center position and Remote Analog down position When Power Supply is selected the magnetron head potentiometer and remote analog signal are both disabled The power control potentiometer on the power supply is always the primary control and will override the settings of the other power controls unless set to zero This interaction occurs between the power supply potentiometer and either the magnetron head potentiometer or the remote analog control signal Consider the following examples 1 If the magnetron head p
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