Transcript
LG
FOR MESSRS : NORDSON CORPORATION
CUSTOMER’S ACCEPTANCE SPECIFICATIONS MAGNETRON : 2M 285 – 24 KRC ( L,M,S ) ( fo Grade ) DATE : Aug. 26, 2010.
CONTENTS COVER
1
RECORD OF REVISION
2
TEST SPECIFICATIONS
3
DIMENSIONAL OUTLINE LABEL TEST EQUIPMENT MOUNTING ON LAUNCHER
7
SIGNATURES
:
PROPOSED BY J. Y. Park
9 10 11
SIGNATURES : APPROVED BY
GENERAL MANAGER OF C&C DIV. MGT DESIGN DEPT.
PLEASE RETURN ONE VOLUME OF THIS SPEC WITH YOUR SIGNATURE FOR APPROVAL.
2M285 MODEL
MAGNETRON SPEC.
Rev. No.
0
RECORD OF REVISION
Rev. No 0
DATE 10. 08. 24.
LG Electronics Inc.
REVISION CONTENTS
SHEET NO.
-
Page
2
2M285 MODEL
MAGNETRON SPEC.
0
Rev. No.
TEST SPECIFICATION Description : Continuous Wave Magnetron, 2450MHz, Fixed Frequency.
1. Absolute Maximum Ratings : Item
Min 4.40
Symbol Ef Ef Tk Ib ibm ebm
Filament Voltage, Stand-by Filament Voltage, Operation Pre-heating Time Average Anode Current Peak Anode Current Peak Anode Voltage
Max 4.80
Unit Vac
Note
-
Vac sec
900
mAdc
2.1
Ap
1, 2 1, 3 1 1
(See Fig . 1) 5 -
5.4
kVp
1
4.8
kW
1 1
Average Anode Input
Pi
-
Load VSWR (continuous)
σL
-
1.5
-
Tp
-
160
℃
Tcase -
-
100
℃
-30
60
℃
Anode Core Temperature Case Temperature Storage Temperature
2. General Test Condition : Item
Symbol Ef
Value 4.6 Vac
Ef
3.1 Vac 840 mAdc
Load VSWR
Ib σL
Cooling Air Flow
Q
Filament Voltage, Stand - by Filament Voltage, Operation Average Anode Current
1.1 Max 2.0 m³/min or greater
Test Equipment
Page 10 single-phase, full-wave rectifier without filter
Power Supply
3. Test Specifications : Symbol
Nominal
Min
Max
Unit
Note
If
19.5
17.5
21.0
Aac
1, 4 ,5
ebm
5.1
4.8
5.30
kVp
1,4,5,6
Average Output Power
Po
3000
2700
-
W
1,4,5,6
Frequency
fo
2460
2450
2470
MHz
1, 4 ,5
Stability ( at σL ≤ 3 )
STIb
-
700
-
mA
1,4,5,7,8
Breakdown Voltage
Et
-
10
-
kVdc
9
Item Filament Current , Stand-by ( Tk = 120secMin ) Peak Anode Voltage
※ Medium standard fo / ( Small , Large -- separated standard fo ) Small ( min 2435, normal 2445 , max 2455 MHz ) Large ( min 2460, normal 2470 , max 2480 MHz )
LG Electronics Inc.
Page
3
2M285 MODEL
MAGNETRON SPEC.
Rev. No.
0
Notes :
1. Power supply should be single-phase, full-wave rectifier without filter. 2. Filament voltage should be regulated as shown in Fig. 1. 3. To apply to single phase full-wave rectifier without filter. If power supply is different, the figure shall be reviewed. 4. Block diagram of the test equipment is shown in Page No. 10. 5. Launcher and tapered waveguides are shown in Page No. 11. 6. These limits are defined as converted values to 20℃. Conversion should be done using the equation shown below. ebm (T) = {1-0.002(T-20)} ebm Po (T) = {1-0.002(T-20)} Po (Where, ebm(T), Po(T) : Values at ambient temperature T(℃)) Measurement shall be done within 15 sec after ebm is supplied. 7. Any instability such as moding, run-away, should not be observed at any load phase of the specified VSWR. 8. Operate momentarily 5 sec maximum to avoid destruction of the tube. 9. No continuous spark at 10kVdc after gradual voltage up. 10. Load match may vary to higher VSWR in application, but must be reviewed by LG with regard magnitude, phase and dwell time. 11. Magnetron life should be lasted during 2000 hr under the general operating conditions which is shown in Page No.10 (Reflection: VSWR:1.1) (Because magnetron operating condition will have effect on the magnetron life time, user should secure a sufficient security situations as like the direction and volume of wind, Power on/off etc.)
LG Electronics Inc.
Page
4
Filament Voltage , Operation ( V )
2M285 MODEL
MAGNETRON SPEC.
0
Rev. No.
5.0
4.0
3.0
2.0
0
100
200
300
400
500
600
700
800
900
Average Anode Current Ib ( mAdc )
Fig . 1 Reduction Chart of Filament Voltage
LG Electronics Inc.
Page
5
2M285 MODEL
MAGNETRON SPEC.
Rev. No.
0
REFERENCE PLANE (AXIS OF OUTPUT ANTENNA)
-10MHz 2400W 2500W 2600W -5MHz 2700W
fo 2800W 3000W
+5MHz
+10MHz
OPERATING CONDITIONS : POWER SUPPLY SINGLE PHASE, FULL-WAVE RECTIFIER WITHOUT FILTER AVERAGE ANODE CURRENT 840 mA WAVE GUIDE : LG STANDARD LAUNCHER. OUTPUT POWER (W) FREQUENCY (MHz)
Fig . 2 Rieke Diagram of the 2M285
LG Electronics Inc.
Page
6
2M285 MODEL
MAGNETRON SPEC.
Rev. No.
0
DIMENSIONAL OUTLINE OF 2M285 DIMENSIONS IN MILLIMETERS
2M285 – 24
±
±0.8
LG Electronics Inc.
Page
7
2M285 MODEL
MAGNETRON SPEC.
Rev. No.
0
Note :
1. Anode core temperature measuring points (down stream air). 2. Case temperature measuring points. 3. Detailed drawing of the filament terminal :
4. Change of numbers and dimensions of holes on the yoke which are not specified in the drawing should be accepted.
LG Electronics Inc.
Page
8
2M285 MODEL
MAGNETRON SPEC.
Rev. No.
0
LABEL SPECIFICATION DIMENSIONS IN MILLIMETERS
40
NOTE 1
LG
24KRC
40
2M285
Magnetron
NOTE 2 CAUTION High Voltage
NOTE 3
Microwave Radiation KOREA
NOTE : 1. It indicates LG brand with symbol mark and Magnetron. 2. It indicates Magnetron’s model name. Below is each model’s serial number. ※ fo Medium 24KRC Small 24KRCS Large 24KRCL
3. It indicates Caution and The origin of a product. Area indicated to be red with white letters.
LG Electronics Inc.
Page
9
2M285 MODEL
MAGNETRON SPEC.
0
Rev. No.
BLOCK DIAGRAM OF TEST EQUIPMENT
OSCILLOSCOPE
MODING COUNTER
TUBE BEING MEASURED
LAUNCHER AND TAPPERED WAVEGUIDE
POWER SUPPLY
PEAK VOLTAGE METER
VARIABLE MISMATCH
TERMINATION
DUMMY LOAD (WATER COOLED)
CIRCULATOR (DIRECTIONAL COUPLER)
FREQUENCY METER COUPLER
WG-COAX CONVERTER
FREQUENCY METER
ATTENUATOR
THERMISTOR MOUNT
LG Electronics Inc.
THERMISTOR BRIDGE
Page
10
2M285 MODEL
MAGNETRON SPEC.
Rev. No.
0
LAUNCHER AND TAPERED WAVEGUIDE FOR TESTING DIMENSIONS IN MILLIMETERS (IN INCHES)
LG Electronics Inc.
Page
11
