This may not be the latest edition.

AD2-I20-A042

1mφ Space Chamber
Users’ Manual

Advanced Engineering Services Co., Ltd.

This may not be the latest edition.

本文書は、AD2-I20-A005「1mφスペースチャンバユーザーズマニュアル」初版を英訳したものであり、最新版であることは保証されていません。英訳版を用いての設備利用検討に当たっては、
以下の連絡先にお問い合わせの上、最新情報をご確認ください。
tfcd_rikatsu@aes.co.jp
This document was translated from first edition of AD2-I20-A005 “1mφ Space Chamber Users’
Manual”, which may not be the latest edition. Please contact the following address for theconfirmation of the latest edition or if you have any inquiry concerning the contents of the English
edition.
tfcd_rikatsu@aes.co.jp

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Table of Contents
1. Introduction .......................................................................................................................................................... 1
2. Brief Overview of this Facility ............................................................................................................................. 1
2.1. System Outline .............................................................................................................................................. 1
2.2. Main Specifications ....................................................................................................................................... 3
2.2.1. Vacuum Vessel System ........................................................................................................................... 4
2.2.2. Cryogenic System ................................................................................................................................... 4
2.2.3. Vacuum Equipment System .................................................................................................................... 4
2.2.4. Data Acquisition System......................................................................................................................... 4
2.2.5. Power Supplies for Heat Sources............................................................................................................ 5
2.2.6. Utility Equipment ................................................................................................................................... 6
3. User I/F ................................................................................................................................................................. 93.1. External I/F on Chamber ............................................................................................................................... 93.2. Device I/Fs ..................................................................................................................................................... 9
3.2.1. Vacuum Vessel ........................................................................................................................................ 9
3.2.2. Electric Power, Signals ......................................................................................................................... 12
3.2.3. Power Supplies for Heat Sources.......................................................................................................... 16
3.2.4. Data Acquisition System....................................................................................................................... 18
3.2.5. Building ................................................................................................................................................ 18
4. Execution of Tests............................................................................................................................................... 224.1. Test-related Work Procedure ........................................................................................................................ 224.2. Test Procedure ............................................................................................................................................. 23
4.2.1. Chamber Operation Pattern .................................................................................................................. 23
4.3. Other Remarks ............................................................................................................................................. 25

Appendix A Attached DrawingsiThis may not be the latest edition.

List of Figures
Figure 2-1 External View of 1mφ Space Chamber ................................................................................................... 1
Figure 2-2 System Diagram of 1mφ Space Chamber Facility .................................................................................. 2
Figure 2-3 Diagram of Data Acquisition System...................................................................................................... 5
Figure 2-4 External View of Power Supplies for Heat Sources ................................................................................ 5
Figure 2-5 External View of TS Bench..................................................................................................................... 6
Figure 2-6 External View of Thermocouple Relay Box (Left) ................................................................................. 6
Figure 2-7 External View of Mini Omega Connector (Right) .................................................................................. 6
Figure 2-9 External View of Clean Booth ................................................................................................................ 7
Figure 2-10 External View (Left) ............................................................................................................................. 8
Figure 2-11 Movable Range (Right) ......................................................................................................................... 8
Figure 3-1 Schematic Configuration of 1mφ Space Chamber .................................................................................. 9
Figure 3-2 System Diagram of Temperature Measurement Lines .......................................................................... 12
Figure 3-3 Pin Assignment of Temperature Measurement Plugs............................................................................ 15
Figure 3-4 Schematic View of Chamber Room ...................................................................................................... 20
Figure 3-5 Configuration of Distribution Boards and Sockets ............................................................................... 21
Figure 4-1 Test-related Work Flow ......................................................................................................................... 22
Figure 4-2 Standard Vacuum Curve, Shroud Temperature ..................................................................................... 23
Figure 4-3 Shroud Temperature Measurement Points ............................................................................................ 24

List of Tables
Table 2-1 Main Performance and Facility Specifications of 1mφ Space Chamber .................................................. 3
Table 2-2 Basic Specifications of Clean Booth ........................................................................................................ 7
Table 2-3 Basic Specifications of TS Handling Equipment...................................................................................... 8
Table 3-1 List of Nozzles ........................................................................................................................................ 10
Table 3-2 List of Flanges owned by this Facility .................................................................................................... 11
Table 3-3 Table of Connections for Temperature Measurement Lines (1/3) .......................................................... 13
Table 3-3 Table of Connections for Temperature Measurement Lines (2/3) .......................................................... 14
Table 3-3 Table of Connections for Temperature Measurement Lines (3/3) .......................................................... 15
Table 3-4 Assignment of Connectors from Power Supplies for Heat Sources ....................................................... 17
Table 4-1 Requirements for Facility ....................................................................................................................... 27ii

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Appendix A
Figure A-1 SKCK-000A Renovation of 1mφ Space Chamber: Assembly Drawing ................................................ 2
Figure A-2 SKCK-001A Renovation of 1mφ Space Chamber: Right Side of Vacuum Vessel No.1 ........................ 3
Figure A-3 SKCK-002A Renovation of 1mφ Space Chamber: Left Side of Vacuum Vessel No.1 .......................... 4
Figure A-4 SKCK-003NC Renovation of 1mφ Space Chamber: Door of Vacuum Vessel No.1 .............................. 5
Figure A-5 SKCK-004A Renovation of 1mφ Space Chamber: Details of Vacuum Vessel No.1 Nozzles ................ 6
Figure A-6 SKCK-005C Renovation of 1mφ Space Chamber Schematic View of Shroud ..................................... 7
Figure A-7 SKCK-006A Renovation of 1mφ Space Chamber: Cross-Section of Configured Shroud and Jig ........ 8
Figure A-8 SKCK-007C Renovation of 1mφ Space Chamber: Configuration of Shroud and Jig............................ 9
Figure A-9 SKCK-009A Renovation of 1mφ Space Chamber: Position Diagram of Scavenger Cryopanel.......... 10
Figure A-10 SKCK-010NC Details of Piping for Scavenger Cryopanel Entrance/Exit ......................................... 11
Figure A-11 SKC-002NC Renovation of Straight Cylindrical Body Part of 1mφ Space Chamber Vacuum Vessel:
TS Support ......................................................................................................................................... 12iii

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1. Introduction
This users’ manual is to provide necessary information to the users of 1mφ Space Chamber (referred to as“this facility” hereafter) located in the chamber room on the 1st floor of the 8mφSpace Chamber Building.
The major environments in outer space are high vacuum, cryogenic shade, etc. On the geostationary orbit
which is about 36,000 km above the surface of the earth, those environments respectively reach the levels of
about 1.3 × 10-11Pa and 3K, the latter being an infinite heat absorber.
However, it is financially unfeasible to simulate such environments on ground as they are, and therefore thisfacility provides vacuum pressure of 1.3×10-3Pa or less and shroud temperature of 100K or lower (except for thedoor and the head of the chamber), which enable us to verify the reliability of satellite behaviors in space by
extrapolating them from the accuracy assessment on thermal designs under the simulated environments
mentioned above.

2. Brief Overview of this Facility
2.1. System Outline
This facility consists of a vacuum vessel system that includes a side-laid cylindrical type vacuum vessel as
its main constituent, a vacuum equipment system made up of different kinds of vacuum pumps, a cryogenic
system composed of a shroud that is cooled down to 100K or lower by liquid nitrogen, etc., a data acquisition
system which monitors temperature and pressure, and utility equipment.
The external view and schematic system diagram of this facility are shown in Figures 2-1 and 2-2,
respectively.

Figure 2-1 External View of 1mφ Space Chamber

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releasedoutside8mΦ Space Chamber
CE

LN2
head tankLIPl

safety valve

CP regeneration valve

to RP

CP He compressor
CP vacuum valveCPshroudTMP
manual leak
valve

TMP

RP

Figure 2-2 System Diagram of 1mφ Space Chamber Facility

2

scavenger cryopanel

TMP
vacuumvalve

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2.2. Main Specifications
The main specifications of the whole facility are shown in Table 2-1. The detailed specifications of eachequipment are presented below.
Table 2-1 Main Performance and Facility Specifications of 1mφ Space Chambersystemitem

specifications

material
dimensions
vacuum vessel
systemvacuum vessel

inner benchweightabout 2,600 kg

inner capacity

about 4.17 m3

inner surface area
dimensions
material

coating

about 14.3 m3
600 mm × 1,000 mm
alluminum alloy
inner Φ 1,000 mm × straightcylindrical body 1,380 mm,
thickness 8 mm
Aeroglaze Z307

# of partitions

3material
dimensions

SUS304
Φ89 mm × 500 mm

inlet/outlet port

NW40 / NW40

dimensions
shroudcryogenic system

scavenger cryopanel(contamination panel)RP(Rotary Pump)

vacuum equipment
systemvacuum ratecooling fall time

including shroud; innerbench and vacuum system
not included
nozzles not included
nozzles not included

body part, cover plate on
mirror side, cover plate on
door side

500 ℓ/min (50Hz)
VG200 / NW40
1,230 ℓ/sec N2
VG300
3,000 ℓ/sec N2
9,500 ℓ/sec H2O
5,000 ℓ/sec H22,500 ℓ/sec Ar
110 mins (50Hz)

vacuum rate
TMP
inlet/outlet port
(Turbo Molecular Pump) vacuum rate
inlet port φCP(Cryo Pump)

notes

SUS304outer Φ 1,300 mm × straightcylindrical body part 3,200 mm,
thickness 6 mmwith oil mist trap on outlet
sidewith wire mesh
1 outlet port NW25

Pirani gauge：
gauge

pressuremeasurement range

1.0×105Pa～1.0×10-1Pa
Cold Cathode gauge：

digital combination gauge(stationary equipment)

4.9×10-1Pa～1.0×10-6Pa
data acquisition
systempower supply system
for heat sources

total # of chs＜composition＞
for thermocouples
temperature・voltage signals (T-type)：for gauge signals：
for current/voltage
signals：
IR power supply

capacity, quantity

3

88 chs72 chs (including 12chs forfacility)
2 chs
14 chs (for IR power supply)
3 kW × 3 sets
300W × 5 setsmeasurement accuracy:±1℃
sampling cycle: 1 or 2
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2.2.1. Vacuum Vessel System
This side-laid cylindrical vacuum vessel made of stainless-steel has a size of 1,300-mm outer diameter ×
3,200-mm length across its straight cylindrical body. Its access door through which a test specimen(■abbreviated as TS hereafter) is carried into the vessel has a diameter of 1,288 mm. For more detailed
dimensions, refer to the corresponding drawings in Appendix B.
<TS storage space>when shroud is used: 1,000 mmφ × 1,380 mmL
when shroud is not used (viz. with shroud removed from the chamber, which is possible only for tests inroom temperature): 1,280mφ × 3,200 mL

2.2.2. Cryogenic System
This system consists of a shroud which is cooled down to 100K or lower by means of LN2 to establish
cryogenic dark environment, a scavenger cryopanel which prevents contamination on a TS, and an LN2 supplierfor the shroud and the scavenger cryopanel.
LN2 is supplied from the LN2 storage tank in the 8mφ Space Chamber into the head tank for this facility,
then distributed into the shrouds, scavenger cryopanels, etc.
Meanwhile, the shrouds on the door or head do not get LN2 supplied, and therefore their temperature does
not become as low as the body-part shroud. Refer to Figures 3-5 and 3-6 for more details.

2.2.3. Vacuum Equipment System
This system consists of rotary pumps, turbo molecular pumps, and cryopumps. The specifications for eachof them are shown in Table 2-1.

2.2.4. Data Acquisition System
This system is capable of acquiring, processing, recording, and displaying in real time such data as thetemperature on parts of a TS, temperature/vacuum levels of the test facility, or power supply voltage/current
during a test. Its basic specifications are shown in Table 2-1. Refer to the users’ manual of the data acquisition
system for further information.
The system diagram of the data acquisition system is shown in Figure 2-3.

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cables for heat source

試験用電源ケーブル
power supplies

power
supplies
試験用電源装置forheat sources

1mφ
space chamber
1mφスペースチャンバ
cables for

vacuum真空計
gauge

vacuum
真空計用
gauge
ケーブル

TS
供試体

熱電対
thermocouple
relay
box
中継BOX

signal line
信号線
Ethernet
Ethernet
power supply cable
電源ケーブル
thermocouple line
熱電対線

data logger
データロガー
EX1048A

data logger
データロガー
EX1032A

HUB

setting
monitoring
表示・設定監視PC
コンピュータserver PC
サーバコンピュータ

socket
コンセント

UPS

UPS

socketコンセント

Figure 2-3 Diagram of Data Acquisition System

2.2.5. Power Supplies for Heat Sources
The power supplies for heat sources are composed of three sets of 3 kW power supplies and five sets of
300W power supplies. Two of the former sets and all the latter sets can be monitored via the data acquisition
system for current/voltage. The external view is shown in Figure 2-4.

Figure 2-4 External View of Power Supplies for Heat Sources5This may not be the latest edition.

2.2.6. Utility Equipment
TS bench
The TS supporter works as a jig for setting a TS inside the chamber. Its external view and details
are shown in Figure 2-5 below and Figure A-11 SKC-002NC in Appendix B. With its 28 holes of 9mmφ, the bench allows a TS to be fixed on it.

Figure 2-5 External View of TS Bench
Thermocouple relay box
A thermocouple relay box refers to a terminal box that relays the thermocouple lines on the users’side and those on the facility side. There are 36 mini omega connectors on each of the twothermocouple relay boxes.
The external views of a thermocouple relay box and a mini omega connector are shown in Figures
2-6 and 2-7, respectively.

Figure 2-6 External View of Thermocouple Relay Box (Left)
Figure 2-7 External View of Mini Omega Connector (Right)

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Clean boothThis facility owns a clean booth which helps handling a TS and performing a test in theenvironment of controlled temperature, humidity, and cleanliness. Its external view and basic
specifications are shown in Figure 2-9 and Table 2-2, respectively. After opening/closing the entrance
curtain, the cleanliness inside the clean booth may degrade or the humidity may vary, and therefore
works that require certain cleanliness or humidity are to be waited for one hour or so before conducted,
and to be started on confirmation of their levels by the dust counter and the thermohydrometer.

Figure 2-9 External View of Clean Booth

Table 2-2 Basic Specifications of Clean Booth
item

specifications

dimensions

2.7m × 2.7m × H2.5m

temperature

23 ± 3℃

relative

45 ± 15%

humidity
air pressure

atmospheric pressurecleanliness

ISO14664-1 class 8 (Max)(equivalent of FED-STD-209D class 100,000)

others・with lights
・with curtains

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TS handling equipment
This facility owns a TS handling equipment which can handle heavy items (especially TSs.) The
external view, movable range, and basic specifications, of the equipment are shown in Figures 2-10,
2-11, and in Table 2-3, respectively.

TS Handling Equipment:

Figure 2-10 External View (Left)
Figure 2-11 Movable Range (Right)

Table 2-3 Basic Specifications of TS Handling Equipment
model #

load

liftingheight (A)fulltotal total
length height width
(B)
(D)
(C)

outer
width
(G)

forelegs
inner
width
(H)

length(J)

forewheels(Y)lifting
rear
empty
wheels heightperweight(Z)
rotation(Jane rubber) (w/ a brake)

8

about

about

liftinghandrollingThis may not be the latest edition.

3. User I/F
3.1. External I/F on Chamber
A schematic configuration of this facility is shown in Figure 3-1.

power supply for heat sources

3kW 300W

clean booth

1 mφSpace Chamber

measurement room
LN2 head tank

Figure 3-1 Schematic Configuration of 1mφ Space Chamber

3.2. Device I/Fs
3.2.1. Vacuum Vessel(1) Nozzle configuration in vacuum vessel (including view port)
There are nozzles with flanges all over the vacuum vessel as the I/Fs to connect the inside andoutside of the vessel. A list of those nozzles is shown in Table 3-1, and their locations are shown in
Figure A-2 SKCK-001A and Figure A-3 SKCK-002A of Appendix B. The nozzles not being used by
the facility are available to users. The flanges shown in Table 3-2 are owned by the facility side and areavailable to users. In case flanges other than the ones owned by the facility are necessary, users are toprepare them.

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Table 3-1 List of Nozzles
No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37

port #
N19
N20
N21
N22
N23
N24
N25
N26
N27
N28
N29
N30
N31
N32
N33
N34
N35
N36
N37
N38
N39
ICF-1
ICF-2
ICF-3
ICF-4
ICF-5
ICF-6
ICF-7
ICF-8
ICF-9
ICF-10
ICF-11
ICF-12
ICF-13
t2-1
t2-2
t2-3

replacement ofmodel # flange
usage purpose
notes
ICF70
not possible for TS support
ICF70
not possible for TS support
ICF70
not possible for TS support
ICF70
not possible for TS support
not possible for facility LN2/GN2
not possible for facility LN2/GN2
50A
possible
50A
possible
300A
possible
100A
possible
ICF203
possible
300A
not possible for temperature measurement
300A
possible
300A
possible
300A
possible
100A
possiblestationary viewport
100A
possiblestationary viewport
100A
possible
100A
possible
100A
possible
100A
possible
ICF70
possible
ICF70
possible
ICF70
possible
ICF70
possible
ICF70
possible
ICF70
possible
ICF70
possible
ICF70
possible
ICF70
possible
ICF70
possible
ICF70
possible
ICF70
possible
ICF70
possible
250A
possible
100A
possible
ICF70
possible10

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Table 3-2 List of Flanges owned by this Facility
No.

size

usage purpose

quant.

1

300A

for signals

1

2

300A

for thermocouple(for CC)

2

3

ICF70 for current and signals 2

4

ICF70 for current and signals 2

5

ICF70

For applying current

4

specifications

external viewpreparation by users / notes
・connector: [MS3106A18-1S]*Teflon insulator is to be used for thevacuum side.
*Check the pin assignment before
using.

・10 pins×10 sets
・current tolerance: 1A/1 cable・both-end connection via
connector
MS3106A18-1S・connector:[MS3106B24-28S]*Teflon insulator is to be used for thevacuum side.
・stationary equipment at N30

・24 pins (12 pairs) ×12 sets
・both-end connection via
connector
MS3106B24-28S・10 pins ×1 set
・current tolerance: 13A/1 cable・both-end connection via
connector
MS3106A18-1S・connector: [MS3106A18-1S]*Teflon insulator is to be used for thevacuum side.

・10 pins×1 set
・current tolerance: 13A/1 cable・one-end connector
MS3106A18-1S・connector: [MS3106A18-1S]*Teflon insulator is to be used for thevacuum side.

Insert socket contact into the pins on
the vacuum side when used.
・vacuum-side socket contact: #16 socket contact [954-7326]
・atmosphere-side connector: 6P plug [951-7291]
crimp tool main body: [M22520/1-01]
crimp tool positioner: [M22520/1-02]

・6PIN
・current tolerance: 5A/1 cable
・ANELVA 954-7290*1: The vessel has multiple types of nozzles, e. g., 300A, 200A, ICF70, etc., which can therefore be used as additional I/Fsif users prepare compatible flanges to them.

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3.2.2. Electric Power, Signals(1) Temperature measurement lines
Out of the temperature measurement lines owned by the facility, 72 channels are available for TSs.
T-type thermocouples are to be used as sensors, and the thermocouples and mini omega connectors(SMP-T-M) for the usage inside the vacuum vessel are to be prepared by users.
60 channels out of 72 can be monitored via the data acquisition system. The rest can be measured
by measurement instruments, etc., brought in by users.
The schematic view of the temperature measurement lines and the table of connections for them arerespectively shown in Figure 3-2 and Table 3-3.

(12ch)(12ch)(12ch)
thermocouple relay box
72 omega connectors (72 chs)

(12ch)(12ch)

1

1

2

2

3

3

4

4

5

N30 flange

5(12ch)
6

6

12

12

(12ch)
shroud temperature (12 chs)

(12ch)(12ch)(12ch)(12ch)

data acquisition system(60 chs for users,
12 chs for shroud temperature)(12ch)(12ch)

measurement instrument,
etc. (12 chs)ｓ

(12ch)
stationary equipment
prepared by users

Figure 3-2 System Diagram of Temperature Measurement Lines(2) Measurement lines other than those for thermocouples
Flanges with feed-through terminals and cables (both inside and outside the vacuum vessel) are to
be prepared by users. The former can be leased out from the facility side, provided that they are shownin Table 3-2.
(3) Electric power lines
Flanges with feed-through terminals and cables (for both inside and outside the vacuum vessel) areto be prepared by users. The former can be leased out from the facility side, provided that they are
shown in Table 3-2.

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Table 3-3 Table of Connections for Temperature Measurement Lines (1/3)

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Table 3-3 Table of Connections for Temperature Measurement Lines (2/3)

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Table 3-3 Table of Connections for Temperature Measurement Lines (3/3)
channel #
61
62

63
64
65

66
67
68
69
70

71
72

atmospherevacuum- thermocouple
side
side
feed-throughconnector
connector relay box
channel #
pin #
pin #
pin # connector # flange #copperA
A
D
right front of chamber
28
constantan
B
B
C
constantan
CC
B
right back of chamber
29
copperD
D
A
constantan
E
E
J
left front of chamber
30
copperF
F
H
constantan
G
G
G
left back of chamber
31
copperH
H
F
constantan
J
J
E
upper front of chamber
32
copperQ
Q
K
copper
K
K
Q
upper back of chamber
33
constantan
R
R
V
12
N30
constantan
L
LP
lower front of chamber
34
copperM
M
N
copperN
N
M
lower back of chamber
35
constantan
P
P
L
upper part ofcopperS
S
U
36
scavenger cryopanel
constantan
TTTlower part ofcopperU
U
S
37
scavenger cryopanel
constantan
VV
R
copperW
W
Z
center of the door
38
constantan
X
X
Y
constantanYYX
center of the head39
copperZ
Z
W*40 ~ 47 are unavailable, with shorting connectors inserted.
data loggermaterial of
conductor

Figure 3-3 Pin Assignment of Temperature Measurement Plugs

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3.2.3. Power Supplies for Heat Sources
The cables (w/ connectors) from the power supplies to the I/F flanges are stationary equipment of the facility.
Refer to Table 3-4 for the connection assignment of the connectors.
When users’ own cables are used instead of the forementioned stationary cables, the latter can be pulled outof the terminal boards or output terminals where users’ cables can then be connected. On completion of tests,
etc., the stationary cables are to be connected as they were.

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Table 3-4 Assignment of Connectors from Power Supplies for Heat Sources

cables for 300W power supplies
300W power supplies
I/F flange toname ofterminal polarity pin # model # of connector vacuum vessel
power
board
supplypower
supply 21

power
supply22
power
supply23

power
supply24
power
supply25

+
+
+
+
+
-

5P1
5N1
5P2
5N2
5P3
5N3
5P4
5N4
5P5
5N5

A
B
C
D
E
F
G
H
I
J

power
supply1

power
supply2

power
supply3

A

-

B

+

C

MS3106B18-1S

MS3106B18-1S
-

D

+

E

-

F

notes
power supply specification
output voltage: DC0 ~ 100V
output current: 0 ~ 3A

to be prepared by to be prepared by
users
users
*Pay attention to power supply capacity(Flanges in Table
and the rated current of flange
3-2 can beleased.)*Facility cables on terminal board can be
replaced by users' own cables. (Original
cables are to be resumed on completion of
test.)

3kWpower supplies
cables for 300W power supplies I/F flange toname ofoutput terminal
vacuum vessel
power
polaritypin # model # of connector
supply+inside vacuum
vesselinside vacuum
vesselnotes

rated current per 1 pin: 13A
provided 63A or less per 1 connector
power supply specification
output voltage: DC0 ~ 100V
to be prepared by to be prepared by output current: 0 ~ 30A*Pay attention to power supply capacity
users
users
and the rated current of flange.
(Flanges in Table*Facility cables on terminal board can be
3-2 can be
replaced by users' own cables. (Original
leased.)cables are to be resumed after completionof test.
*Facility cables on output terminal can be
replaced by users' own cables. (Original
cables are to be resumed on completion of
test.)

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3.2.4. Data Acquisition System
The measured data is collected by the server computer (data acquisition PC) in accordance with the preset
program. The display program puts up measured data both in real time and of the past for reference.
Content of data acquired by data acquisition system
The following data is obtainable by the data acquisition system.
(a) Thermocouple temperature(b) Output current/voltage from power supplies for heat sources(c) Vacuum pressure

Preset data
The following items are to be preset for using the data acquisition system. The preset is to becompleted prior to the start of a test.
(a) Measurement conditions: sampling interval, with or without checking on breaking of wires, etc.
(b) Measurement ID: channel No., measurement ID, names of data, etc.
(c) Modes: names of test modes, registered channels, etc.
(d) Groups: names of groups, registered channels, etc.
For further details, refer to Appendix A “Users’ Manual for Database.”

Distribution of data
On completion of a test, the recorded measurement data will be handed to users after converted into
a comma-delimited text file (viz. CSV format.)
The data includes TS names, test names, output periods, group names, channel numbers,
measurement ID, data names, units, data acquisition times, mode names, and measured data.

3.2.5. Building
Chamber
A part of 8mφ space chamber can be shared by users as a working area for using 1mφ spacechamber. TSs and equipment can be carried in/out via the loading dock shutter of 8mφ space chamberbuilding.
Equipment, systems, etc., brought in by users can be set using the desks and chairs in the room. A
schematic view of the chamber is provided in Figure 3-4.
Clean booth
The temperature, humidity, and cleanliness in the clean booth can be put up on the portable
monitor.
To prevent the degradation of the cleanliness, the opening/closing of the curtain at the entrance is tobe kept to the minimum and shortest time possible.
The temperature of the air conditioner can be adjusted as needed.

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Measurement room
The data obtained by the data acquisition system can be monitored via the setting monitoring PC
installed in this room. Equipment, systems, etc., brought in by users can be set using the desks andchairs in the room.
Distribution boards for users, sockets
The power supplies necessary for conducting a test are connected to the distribution boards forusers or sockets for usage.
The configuration of distribution boards and sockets is shown in Figure 3-5. Please be sure of thetotal EP load applied by users not to exceed the capacities of the EP supply or breakers.
Since the distribution boards and the sockets are not connected to any emergency power supply
system, an UPS, power generator, etc., may need to be prepared by users to be on the safe side.

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3kW 300W
power power
supply300W電源3kW電源 supply

クリーンブース
clean booth

valve
box
弁箱

pumps,
etc.
ポンプ等

valve
box
弁箱

measurement
room
計測室

data acquisition
データ処理系
system

head
ヘッド
タンク
tank

user-available area
：ユーザ使用可能エリア
Figure 3-4 Schematic View of Chamber Room

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3kW 300W
power power
supply300W電源3kW電 supply

PLS-1(100V)

2E

2E

PLS-1(100V)③

2E

クリーンブース
clean booth

4E
PLS-1

head
ヘッド
tank
タンク

valve
box
弁箱

valve
box
弁箱

data acquisition
データ処理系
system

試験検証用
power supply
board
ﾁｬﾝﾊﾞ電源盤
for 1mφ chamber

2E

measurement
計測室
room

2E

2E

2E

PLS-1(100V)④ PLS-1(100V)⑤

Figure 3-5 Configuration of Distribution Boards and Sockets

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4. Execution of Tests
4.1. Test-related Work Procedure
Each work in the course of a test is executed based on the test implementation plan sheet presented by theTS side. The following Figure 4-1 shows a general flow of test-related work.

installation ofTS

preparation fortest

establishment of test environmental
conditions
vacuum pressure： < 1.3×10-3Pa
shroud temperature：< 100K

test mode setting
test

start ofvacuuming

setup of TS inchamber

final checking(checking forelectrification andwire breakage)

normal temperature/atmosphere return

carrying out TS
from chamberremoval of TS

visual inspection

Figure 4-1 Test-related Work Flow

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4.2. Test Procedure
4.2.1. Chamber Operation Pattern
The standard vacuum curve and shroud temperature during a thermal vacuum test in this facility are shown in Figure 4-2, while the shroud temperature measurement
points are shown in Figure 4-3.

inner chamberpressure (CCG) Pa

start of low vacuuming

inner chamberpressure (PI1) Pa
right front ofchamberright back ofchamber
left front ofchamberstart ofatmospherereturnstart of scavenger
cryopanel coolingstart of shroud
cooling

start of cryopump
vacuuming

start of shroud
heating

GN2 leakstart of scavenger
cryopanel heating

Figure 4-2 Standard Vacuum Curve, Shroud Temperature

23

Temperature [℃]

Inner-chamber Pressure [Pa]start of TMP
vacuuming

left back ofchamber

upper front ofchamber
upper back ofchamberlower front ofchamberlower back ofchamber
upper part ofscavenger
cryopanellower part ofscavenger
cryopanel
center of door
center of headThis may not be the latest edition.

to the door

upper front

upper backto the backcenter of door
upper part ofscavenger
cryopanel

center of headlower part ofscavenger
cryopanelleft front

left backright front

lower front

right backlower backshroud fixture

contact surface of door to vessel

Figure 4-3 Shroud Temperature Measurement Points

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4.3. Other Remarks
Matters to be confirmed for test
The environment in the space chamber is the same as outer space in that it cannot be accessed
promptly even when abnormalities are found on a TS. Bearing that in mind, the following matters areto be checked.
What is suggested in this section are general matters to be attended to for using this chamber. For
further information on each equipment, refer to their respective users’ manual.
(a) With its equipment all manually operated, this facility has no interlock system to protect equipment
or TSs. Therefore, users are to be cautious of the pressure and temperature inside the vessel, thestate of a TS, etc., when using this facility.
[ex] If the TMP valve is opened in the middle of its operation when the vessel is in the atmosphericstate, back pressure can be exerted on the TMP, possibly damaging its rotor.
(b) Stay alert to the lack of oxygen when dealing with LN2.
(c) When performing work using LN2, be cautious of the parts that take on cryogenic temperature. Pay
special attention to the shroud and scavenger cryopanels right after the achievement of atmospherereturn, because they can be extremely cold.
(d) Before closing the door, users are to make sure that there is no dust or dirt on the O rings andflange surfaces. If there is, it is to be wiped off with a piece of clean rug, using a little amount of
IPA applied to the rug when it doesn’t come off easily.
(e) Do not apply vacuum grease to the O rings to the extent possible, because that will end up
collecting dust or accumulating gas.
(f) When fastening the tightening bolts for the door, do so on the four of them little by little in turn.
Avoid retightening them when the vessel is in the vacuum state, because that will make the bolts
fastened too tight to be turned when the atmosphere return is achieved.
(g) Do not reuse the gaskets of ICF70 and VCR, because they are made of copper.
(h) Do not open/close the atmosphere return valve too fast when operating it. Otherwise, a TS, gauge,etc., can be damaged by the abrupt inflow of air.
(i)

When supplying LN2 to the shroud and scavenger cryopanels, open/close the valve slowly to avoid
the sudden change of temperature.

(j)

When raising the temperature of the shroud, be careful not to let it exceed 60℃, because that may
cause the detachment of the black paint inside the shroud.

(k) Make sure to mount the Pirani gauge (PSG-1) manufactured by DIAVAC horizontally. If mounted
vertically, errors take place at the pressure of 4×104Pa or more. The Penning gauge (C-4), on theother hand, has no usage restrictions, but may as well avoid such places where magnetic field canhave problematic effect on it, due to the magnet used for the gauge.
(l)Even though the Nude gauge is supposed to be capable of measurement at the pressure of 10-1Pa or
lower according to its catalogue, it is better used in higher vacuum pressure (around 10-3Pa or less)to the extent possible, because its lighting in high pressure can shorten its longevity.

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(m) When opening the vacuum valve of the cryopump, make sure in advance that the vessel is in thevacuum state and the cryopump is 20K or lower. If the vacuum valve is opened when the vessel isin the atmospheric state, it takes long before the cryopump returns to the original state, due to its
absorption of a large amount of water.
Documents to be submitted at K/O meeting
The following documents are to be submitted to the personnel in charge of the facility at the K/O
meeting.
・ Test implementation plan
・ Requirements for the facility

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Table 4-1 Requirements for Facility>>>These requirements are to be submitted at K/O meeting to the personnel in charge of operating the facility.<<<1mφ Space Chamber
documentation date：name of test

Year

Month

facility users’ namenote

test conditions, etc.

inner-chamber pressure

Pa or lessdischarge-hazardous range

Pa ~shroud temperatureenvironment of clean boothDay

generally 1.33×10-3Pa or lessPa
K or lower

generally 100K or lower

temperature：

23 ± 3℃

humidity：

30 ~ 60％
cleanliness: ISO class 8

cleanliness：(class 100,000)

300W power supply:(qty)

up to 5300 kW power supply:(qty)

up to 3

test method, used equipment, etc.

power supplies for heat sources

test specimen masskg

test specimen dimensions
TQCM(incl. jig)
not use

／

use:

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(qty)

within 1,000 mmφ × 1,380 mm

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Appendix A

Attached Drawings

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Environmental Technical and Test Unit, JAXA
Renovation ofadmission inspection drawing
1mφ Space Chamber:
Saito M iyamoto M iyamoto
Assembly Drawing

Figure A-1 SKCK-000A Renovation of 1mφ Space Chamber: Assembly Drawing

A-2

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※ The bolt holes of each flange are to be center-symmetrical.
※ The heights of the nozzles w/o specification are 120 mm for 300
A and 50 mm for 100 A from the surface of the vacuum vessel.
※ They are all to be made of SUS 304.
※ The flanges on the vacuum vessel side are to be VG.

Environmental Technical and Test Unit, JAXA
Renovation of 1mφ Space Chamber:
Right Side of Vacuum Vessel No.1

admission inspection drawing
Saito

M iyamoto M iyamoto

Figure A-2 SKCK-001A Renovation of 1mφ Space Chamber: Right Side of Vacuum Vessel No.1

A-3

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※ The bolt holes of each flange are to be center-symmetrical.
※ The heights of the nozzles w/o specification are 120 mm
for 300 A and 50 mm for 100 A from the surface of thevacuum vessel.
※ They are all to be made of SUS 304.
※ The flanges on the vacuum vessel side are to be VG.

Environmental Technical and Test Unit, JAXA
Renovation of 1mφ Space Chamber:
Left Side of Vacuum Vessel No.1

admission inspection drawing

Saito

M iyamoto M iyamoto

Figure A-3 SKCK-002A Renovation of 1mφ Space Chamber: Left Side of Vacuum Vessel No.1

A-4

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※ The bolt holes of each flange are to be centersymmetrical.
※ They are all to be made of SUS 304.

Environmental Technical and Test Unit, JAXA
Renovation of 1mφ Space Chamber:
Door of Vacuum Vessel No.1

admission inspection drawing
Saito

M iyamoto M iyamoto

Figure A-4 SKCK-003NC Renovation of 1mφ Space Chamber: Door of Vacuum Vessel No.1

A-5

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vacuum vessel wall

※ The flanges on the vacuum vessel side are all to be VG.

Environmental Technical and Test Unit, JAXA
Renovation of 1mφ Space Chamber: admission inspection drawing
Details of Vacuum Vessel No.1
Saito M iyamoto M iyamoto
NozzlesFigure A-5 SKCK-004A Renovation of 1mφ Space Chamber: Details of Vacuum Vessel No.1 Nozzles

A-6

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Figure A-6 SKCK-005C Renovation of 1mφ Space Chamber Schematic View of Shroud

A-7

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Cross-Section A-A
Environmental Technical and Test Unit, JAXA
Renovation of 1mφ Space Chamber: admission inspection drawing
Cross-Section of Configured
Saito M iyamoto M iyamoto
Shroud and Jig

Figure A-7 SKCK-006A Renovation of 1mφ Space Chamber: Cross-Section of Configured Shroud and Jig

A-8

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Environmental Technical and Test Unit, JAXA
Renovation of 1mφ Space Chamber:
Configuration of Shroud and Jig

admission inspection drawing

Saito

M iyamoto M iyamoto

Figure A-8 SKCK-007C Renovation of 1mφ Space Chamber: Configuration of Shroud and Jig

A-9

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Cross-Section A-A
Environmental Technical and Test Unit, JAXA
Renovation of 1mφ Space Chamber: admission inspection drawing
Position Diagram of Scavenger
Saito M iyamoto M iyamoto
Cryopanel

Figure A-9 SKCK-009A Renovation of 1mφ Space Chamber: Position Diagram of Scavenger Cryopanel

A-10

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pipe
scavenger
cryopanelplate

GN2 outlet

flange mating facedoor side

body side

scavenger
cryopanelplate

LN2 inlet

door-side
cover platefixture for shroud

scavenger cry opanel
GN2 outlet

scavenger cry opanel
LN2 inlet

fixture for shroud

flange mating facedoor-side
cover plate

holes

pipe
fixture for shroud

VCR gland 1/2T
SS-8-VCR-3
VCR female nut 1/2T
SS-8-VCR-1

LN2 inlet
piping
GN2 outlet
pipingflange mating face

Environmental Technical and Test Unit, JAXAVCR plug 1/2T
VCR gasket 1/2T
SS-8-VCR-P (for tests) SS-8-VCR-2-GR

admission inspection

Details of “C” Part

Details of Piping for Scavenger Cryopanel Entrance/Exit

Saito

Figure A-10 SKCK-010NC Details of Piping for Scavenger Cryopanel Entrance/Exit

A-11

drawing

M iyamoto M iyamoto

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Details of Leg Parts

12mmφ holes for fixing legs
(4 places in total)

9mmφ holes (28 places in total)

vacuumvessel22mmφ depth:
5mm
ICF 70※ They are all to be made of SUS 304.

Environmental Technical and Test Unit, JAXA
Renovation of Straight Cylindrical
Body Part of 1mφ Space Chamber
Vacuum Vessel: TS Support

admission inspection
Saito

drawing

Yoshida M iyamoto

Figure A-11 SKC-002NC Renovation of Straight Cylindrical Body Part of 1mφ Space Chamber Vacuum Vessel: TS Support

A-12