新聞山東NEIDLEIN 81202 RN3 MK4報價
如果控溫儀表的溫度傳感器布置在真空室內(nèi)，玻璃棒溫度計的溫度值與儀表的溫度讀數(shù)之間的差異可以適當(dāng)縮小，但不可能消除，而真空室的密封可靠性增加了一個可能不可靠環(huán)節(jié)。如果從操作實用角度考慮不希望看到這個差異，可以采用控溫儀表特有的顯示修正功能解決。真空烘箱從本質(zhì)上來說是為人們更方便更好的生活服務(wù)的，但是如果因操作不當(dāng)出現(xiàn)問題，還會給我們的工作和生活帶來負(fù)面影響，在平常的基本操作過程中，我們應(yīng)該謹(jǐn)遵使用規(guī)則，小心安全的使用，盡量讓其更長時間地為我們的生活服務(wù)。
OMRON NYP25-31282-15WC1002
MD MICRODETECTORS MDI58F 1954
小強工控 CARLO GAVAZZI PS31L-NT03RS-T00
BECKHOFF KM2008-0000
dunkermotoren Motor GR 63x25, 24VDC SNR 88442 02361
mita WP3090
DOLD安全繼電器49207 IK8702.01 AC50/60HZ 230V
SCHNEIDER XUSLDSY5A1400R
WOODHEAD E11A06015M500 60m
FEAS Netzteil MPS10024/12-3
PARKER 4A-C4L-75-EPR-B
BARKSDALE UDS7-20-2-1-54-2-2-5全套 CP28-001
Eaton Moeller 174399
INTEGRAL Type:PT4-40 Nr:411-1319-014-040
SAUTER DSB152F001
Murr Murr: 4000-70103-0004000 插頭
Schmersal Z4V7H335-11z-RVA - 2272 / 2654, M2-13071C-00029
Honsberg RVM-008GM300
SCHNEIDER XCKP2128P16
DOLD安全繼電器35930 AI 621.82 AC50/60HZ240V 0,01-99,99S
RIEGLER DW 267
OMRON E2E-X2B1T8-M1
CASAPPA 76409600 HDP35.80-LMF/MD/30.17-LMB-G1 D4
Gefran-2019 F001793 1800-RRR0II-0021-000
BEI編碼器DH0514 1024 019 4.75V-30V
norelem 03120-16
Gefran-2019 F005334 PM-I-12-F-0550-X 0000X000XX00XXX
Gefran-2019 F053279 GFX4-IR-80-R-2-0-C
倍加福 NEB12-18GM50-E-V1
"Pepperl-Fuchs
" "129428 NCB40-FP-A2-T-P1
"
EMG KLW300.012
ZIMMER WWR40L-B
Gefran-2019 F063921 ONP1-A-A-0450-E 0000X000X00X0XX
AirCom R03-04J6
SCHNEIDER MGN15713
MD MICRODETECTORS MDI58G 844
RIEGLER 229.02-1,1
Gefran-2019 F014397 TC6-D-2-J-C-A-J-D-2 000X000X01000XX
UNIVER B-121N
BANNER FRP-SLS-STP
BURKERT 2031-A.8.0 FA G1/4 135447
UNIVER KE2000400800
SCHNEIDER K2H032N
MD MICRODETECTORS MDI38F 2223
Eaton Moeller 120680 mRB4-25/3N/C/01-A
OMRON GRT1-ID4-1
SCHNEIDER A9N19450
DELTA HS313IDDH3F0A
MD MICRODETECTORS MDI63G 415
SCHNEIDER 9001SK43J35LRFR
SCHNEIDER A9F92440
Gefran-2019 E0325112 RACC. COMPR. OTT. G1/4 - D.8
SCHNEIDER SER8300A5B00
MICRO-EPSILON 4106141 MSC710-U
E+H CPS11D-7BA21
FRB Nr. :AG140067
BURKERT 電磁閥153662
UNIVER W7000630050M
Gemu 600 25M17
VISILUME hexagon nuts M 16 Gr. 8 H = D
BECK 901.51.PO1/1.8-2.0bar 123032
RONI NE-FP-12-1-380-195
OMRON 3G3MX2-A4030-E-EIP
ADDI-DATA PA1500
BANNER LEDWO100M-D
LINMOT直線電機PR02-88x76-C_48x240F-HP-C-150-L00_MS04_TS00
BANNER QS18EN6DVQ8
coax FK32 NO15 32022633DC
TEWS M9738755
lake monitors inc B4B-6WD-40
BKW F3/20 300m*1020mm
SCHNEIDER A9N19276
Eaton Moeller 215077 V-M16
英國ONDRIVES變速箱和減速器P20-DX
SCHNEIDER BMH0701T12A1A
ELPRESS Punch 13p29d
BANNER TL50BLYYYYYQ
ROSS D2176C3003
Eaton Moeller RD16-3-508
Sommer-automatic GmbH & Co. KG GS65-B
MD MICRODETECTORS MDI63A 1645
SCHMALZ SGM-50-G1/4-IG
cherry G84-4400LPBGB-0
Eaton Moeller 231844 DILER-40-C(380V50HZ,440V60HZ)
Honsberg FW1-025GP011
TUNKERS APG40.1 BR2 ASA10 T12
MP FILTRI "BS-LPA-M-110
"
MD MICRODETECTORS AES/AN-1A
BANNER Q50BVPYQ
MD MICRODETECTORS MDI58C 1148
SCHNEIDER LV833858SP
ILME ILCHC 16-1
BANNER TL50BGYRAOS3QP
新聞山東NEIDLEIN 81202 RN3 MK4報價
因為R41A制冷劑是HFC類物質(zhì)組成的混配制冷劑，在制冷劑泄漏的時候，制冷劑泄漏的成份不同，會造成原制冷劑成分變化，制冷效果會差。制冷系統(tǒng)混入空氣帶來的危害另外，如果制冷系統(tǒng)混入了空氣，應(yīng)該抽真空在加注制冷劑，因為真空抽不干凈的話，系統(tǒng)中肯定會有水分和不凝性氣體殘留在里面，給空調(diào)系統(tǒng)帶來很大的危害。混入水分：潤滑油與水分作用會生成酸，對銅管具有腐蝕作用，進(jìn)而影響空調(diào)的使用壽命；銅被腐蝕后，銅離子游離在制冷劑中，經(jīng)過壓縮機時會被鐵置換出來，造成銅鍍現(xiàn)象，損壞壓縮機；制冷劑中混入水分會造成膨脹閥閥口或毛細(xì)管內(nèi)結(jié)冰，導(dǎo)致制冷劑無法流通，空調(diào)無法正常工作，這就是所謂的冰堵現(xiàn)象。
BANNER OC-12
COVER 581 MICROSOL ISO1 SS
SCHNEIDER VW3M2201
DOLD安全繼電器64492 BH5928.91/61 AC/DC24V 6-60S
WAMPFLER WAM/081002-2*1 碳刷
BANNER BT2.56P
SCHMERSAL 101006386 ESS21S2
Hilgendorf QA1538SP
BECKHOFF C9900-K292
OMRON NX-ECS112
Eaton Moeller 170M5564
SCHNEIDER NSYPLM54G
Eaton Moeller 15318 T0-6-15018/E
00019717 BURKERT 0211-B-03,0-BB-MS-GM82-110/56-08 *
SCHMALZ SGM 50 G1/4-1G 183952
EMILTRAFO 1+20/-20/+400 2 0-220V Tot300VA
SCHNEIDER XEPA1081D63
SCHNEIDER L100WTR2M10
RIEGLER 229.01-3,5
BECKHOFF C9900-H700
CASAPPA 0199888G FRONT SECTION PLP20.8D0-82S1-LEA/EA-N-EL-A FS
Brinkmann TC250/600-X+251
hydac EDS 3316-2-06,0-000-F1
Gefran-2019 F042785 M31-8-M-P75C-1-4-D 2130X000X00
BANNER TL50RB
小強工控 CARLO GAVAZZI CTD9V4005AXXX
SENECA K-BUS
EUROTHERM TE10P 100A/400V/000/4mA20/SPOT/PA/URP/TTDL/P/TLI/LPOT/BKDNO/000/R4mA20//
SPECK PUMPEN 260 for BC 40/22 ADr.EPDM
OMRON A22NS-3RL-NYA-G110-NN
BANNER TL50HZGYRAOS4
murr Model:Art.-no.6652520
Gefran-2019 F013871 TC6-A-1-K-C-C-K 000X000X00250XX
PIXSYS ATR227-12ABC
MTS EP00800MD341A01
GETT TKL-020-POS-white
LEUZE 50131838 CML730i-R40-610.A/PN-M12
Gefran-2019 F041229 TCM-CP-3-J-0-A-0-T-F 010X000X00000XX
OMRON 7412-2050-2002
CASAPPA 71001502 HDP30.51-05/30.51 D
ADDA 1TB13M1300001;Type TFCP 132 MA-6
MD MICRODETECTORS MDI63A 972
lechler 460.766.17.CE 噴嘴
WALTHER 710210VG
ILME ILMAV 06LG25-F
BARKSDALE BPS34GVM0400B
RIEGLER 15.AMA.20015
DURRIDGE RAD7 0.1-20，000 PCI/L(4-750，000 BQ/M3) ;measures the EPA b level of 4 pci/L , with 10% standard deviation ; 4.35kg(29.5cmx21.5cmx27.9cm)
BANNER LEDWR90SS-G
Gefran-2019 F017529 TR1-A-1-B-5-A-E 020X000X00060XX
CASAPPA WSP30.22D0-83E3-LBU/BU-N
IGUS CF113.006.D
SELET傳感器B01EN124PSC
SCHNEIDER OVA43076
PHOENIX VAL-MS 320/3+1 - 2858564
ATI 9121-JE2-M
00002196 BURKERT 2000-A-2-13,0-EE-VA-GM84-C-C
wekador SSTI-31416-E-TE12-65
Lumberg RKTS 8-299/15M
VIVOIL齒輪泵X3M8601AFFF
SCHNEIDER NSYCRTA4UD
SCHNEIDER ZB6YA318
Gefran-2019 F030006 TK-E-1-M-B01C-M-V 2130X000X00
IPF AK000005
BANNER IVU2TG625
UNIVER S1022250320
BERNSTEIN 6602799048 KIN-E60P?/008-KLSM8
STROMAG NFF6.3/9.4 ZP3 BREAK 98VDC;110VAC;1.18A; 63NM
Gefran-2019 F032713 TR6-A-2-B-C-A-I 000X000X00800XX
MD MICRODETECTORS LS4ER/40-105M
R+W Kupplung IEC/EN 60947-5-1 行程開關(guān)
Eaton Moeller 139996 XVM-430-65TVB-1-11
MD MICRODETECTORS MDI63G 1395
小強工控 CARLO GAVAZZI PS42L-BT11LG-T00
Eaton Moeller 106291 CMMZ-00/08
ROTOFLUX G50-2400-01R-810
SCHNEIDER H663AWK
RTA PLUS K5
heidenhain 685162-01 編碼器
GHR 42DIV455 DIV 455/00
MD MICRODETECTORS CD08/0B-100A1
GEMU 612 15D 59 C3 52 0 1TS 1507
MD MICRODETECTORS MDI63A 2210
SCHNEIDER MUR34526
ZF 9S1310T0 1324 001 048
FINDER繼電器405160125000PAC
小強工控 CARLO GAVAZZI PS21L-PS02P1-T00
Gefran-2019 F045814 556-3-0-1-2
MD MICRODETECTORS MDI58F 2368
RIEGLER MS1701313
Gefran-2019 F041601 AR6-B-2-B-C-C-I-B-2 000X000X00300AA
suco 0180-45703-1-022
IGUS CF310.UL.1500.01
CASAPPA 03716020 HDP30.22S*- * *-LMC/MB- *G0-N-P
MD MICRODETECTORS MDI38G 398
VECTOR VN1630A
美國PRX PS68A7880P32A2
BANNER QT50R-UK-AFH
SCHNEIDER LEEBT900AI
BANNER TL50BLZGYR2ALS3QP
Eaton Moeller 1814187 DMVS-160N/1
SCHNEIDER XVRZ082
RIEGLER 29.9
MD MICRODETECTORS MDI58C 1988
Eaton Moeller 186022
CONEC 163A11089X
EGE IGMF015GSP
HERZOG 2401-036-019801
THERMOSYSTEMS TS23-233M220
OMRON D4JL-2NFA-C6
ATOS PFG-120
ELERO Type:Junior 1 SerienNr.:140003442
SELET傳感器C01EG188AO
MOSTEC CH-4410
BANNER R58ACG1
CASAPPA 03590137 PLP30.51S0-32S5-LOG/OF-N
RELECO C2-A20BX/UC60V R ..
BANNER SLPCR25-690
BANNER AG4K-4E-10M5P3
SCHNEIDER K1D029BX
SCHNEIDER MGU6.006.854
hastings 5455-93
SCHNEIDER KAE1H
小強工控 CARLO GAVAZZI GS38920000115
小強工控 CARLO GAVAZZI PAM04CN3ANC
DOLD安全繼電器35350 AA9837.11 30-90HZ UH AC50/60HZ 415V
MD MICRODETECTORS MDI63A 1177
Sommer BGUM02400
RIEGLER 461.014-6
Eaton Moeller 276729 DILM9-01(24V50/60HZ)
RIEGLER ES 184
Gefran-2019 F008266 MN0-6-M-B02C-1-5-0 2130X000X00
SCHMERSAL SEK1022(爐體)
ILME ILJPC 16 G
bronhonst F-201CV-1K0-PBD-00-V 100mln/min
SCHNEIDER MTN684032
SCHNEIDER MTN2334-0325
MTS RPM1200MD701S2G21OO
TACONOVA 223.3206.000 0，6-8L/MIN/WASSER
SCHNEIDER ZB4BW177
FHF 22588703
BONDIOLI HPLPA214SMNG6G4BHY
SCHNEIDER OVA50256E
Elettrotec PMC5
RIEGLER 226.01-32,0
LEUZE 50131343 CSL505-R25-1575-M8
ELECTRONICON E62.F81-203EL0\20μF\680V
OMRON F3SG-2RA2350-30
SUMER TRANSMISSIONS RV35-45-CR-V1-P10-FF52/40-AM5-Φ14X35 電機3
NSD VRE-S062FAL
Euchner CET1-AR-CRA-AH-50F-SG-106159，NR:106159
CASAPPA 76410740 HDP35.90/30.27-L/MB-G1 D1
SCHNEIDER TM1STPTTSN62015
SWAN CNA-87.840.100
Eaton Moeller 15188-4R
AMETEK-DREXELBROOK US-11 測量范圍0.4-7米 4-20mA輸出 16-30VDC
SCHNEIDER ZB4BC480
"
Parisiencetific" Series 1000系列：1650-006*
LEUZE SLC4E30-1500E
Turck IM12-22EX-R/24VDC Nr:7505640
VAHLE SKN 4-40-1,HS NO.257130 HS NO.257130
SCHNEIDER XACD21A0101
MD MICRODETECTORS FAR2/BP-0A
00011465 BURKERT SET5-2030-02-00,00000-D-C00-011465J
SCHNEIDER ZB5AG04D
hydac EDS3476-2-3000-400 壓力傳感器
BANNER APQS18-020
UNIVER KL2000400150FM
LIKA編碼器I58S-H-1250ZCM410R 1250PPR-RAD
OMRON NER-011660610G
UNIVER RT2230630750
SCHNEIDER LP1D80004EW
Honsberg CRE-025HMS-139
FINDER繼電器405291102003
Honsberg MR-015GM010-SR
BECKHOFF ZK7610-1900-A100
ELDON HT4630
LEINE&LINDE BK171010
Imperx SDI-B1922M
SCHNEIDER SDN3501470
BANNER M12PLP
SCHNEIDER XUB9BPBNL2
HYDAC YJZQ-J10B DN10 PN31.5MPa
SCHNEIDER A9Q22225
GE CR104PXG24 信號燈
Siemens A&D 3TL6123-0AG2
SCHNEIDER XCSD3718P20
voith type MP25 AQ
HK INSTRUMENTS DPT-Flow-5000-D
RIEGLER 13.DM.63095
MD MICRODETECTORS MDI58G 607
SELET傳感器OCV81/PRM
RTA PAVIAITALY EM 1H2H-04D0 電機 RTA PAVIAITA
新聞山東NEIDLEIN 81202 RN3 MK4報價
于是在新標(biāo)準(zhǔn)的執(zhí)行過程中，搪玻璃設(shè)備的設(shè)計者對新標(biāo)準(zhǔn)和GB15的取舍常常無所適從。事實上，新標(biāo)準(zhǔn)作為特殊行業(yè)與GB15中的規(guī)定有所不同也是正常的，況且，GB15中已明文規(guī)定搪玻璃設(shè)備不屬于其管轄范圍，可見，除非新標(biāo)準(zhǔn)中指明按GB15，其余則可不必按GB15執(zhí)行。為避免此類問題的發(fā)生，筆者認(rèn)為，把相關(guān)的標(biāo)準(zhǔn)在易引起誤解的方面做透徹的比較是很必要的。強度計算由于搪玻璃設(shè)備是一種特殊的化工設(shè)備，在強度計算方面也相應(yīng)有其特殊性，它與GB15所規(guī)定的鋼制壓力容器有明顯區(qū)別。
VIVOIL齒輪泵X3M8931IFFF
SCHNEIDER GS2EU3N
GANTER DIN6336-GG-50-B10-C
UNIVER KD2000800600M
DR.ESCHERICH POWER PU55FC-230V 100011
UNIVER W1000250021M
PERMA 26.0011.701
SCHMERSAL 101025466 SRB-NA-NF-12VDC
SCHNEIDER BMI1003P36F
INOR Transmitter GmbH MinIPAQ-L
Dr. Erich TRETTER GmbH + Co. FK90-530 滾珠軸承
HYDAC HLP711082
SERVO RECAMBIOS, S.A. RB2C-225/088 K093 電機零件（端蓋）
LEUZE 50123417 CML730i-R20-1590.R/D3-M12
Gefran-2019 F305410 GFW-3PH-100-480-1-1-3-R-1-2-E1
WALTHER DN19/PN30/G3/4A LP-019-0-WR026-01-2 FPM/1.4571
Gefran-2019 F018419 TR1-B-2-B-5-A-I-A-1 040X000X00100XX
Eaton Moeller 132419 FAZ-B5/1-NA
Camtec HSEUreg04801.50T 電源
小強工控 CARLO GAVAZZI PS31L-PT12RT-T00
FSG PE 4000-PK/E2-01 10062790 AN1870S10-001.002
BANNER SLPMR25-1250P12
MAXON電機110140
Eaton Moeller 190848
Eaton Moeller 284307 XSPTC0804
ceri CSSL 41-AA DC24V
SCHNEIDER TM3SAFL5R
Eaton Moeller 265793 NZMH4-ME1400
RIEGLER 227.55-6,5
BECKHOFF ZK1090-3333-0002
WAUKESHA SP4 002 M00 Support Adapter Plate
UNIVER OV3000500100
SCHNEIDER ZBY2327
HYDAC HDA 4746-A-0400-000
SCHNEIDER OVA38378
SCHNEIDER GBX0600080551F
Gefran-2019 F074920 GFX4-IR-60-0-2-0-E1
NORIS M24？3 R18.04-278(110.01.024)
PMA NVNV-M406-13
KONAN 24-011-38.0801,48 VD
Sullair 88290005-380
DOLD安全繼電器681 AA7616.24 AC50/60HZ 240V 0,15S-30H
Gefran-2019 F030686 TC1M-A-1-K-3-F-D 020X000X00150XX
SAMSON MODEL 3761-0000X2X00105 NO:2014444
Gefran-2019 F060154 TR6M-D-2-C-C-C-I-B-2 000X000X00188XA
Gefran-2019 F001268 800-DDD0-00201-000
GUTEKUNST D-085H
Gefran-2019 F055431 LT-F-0150-P 0000X000X20
HYDAC LPF-BN3HC240DE5BX/-V
Helios 20110309 03060131 加熱電阻器
LIKA編碼器C80-Y-1000ZNF230 1000PPR
BANNER K80APPBGRCQP
Wago 793-570
KATKO KEM 616U Y/R
ISO srl R-600
HBM 24/30
SCHNEIDER MGU11.NI1000.30
BANNER SLSP30-300Q85
METAL WORK SOV 33 SOS NC 230v～AC 50HZ
BECKHOFF C9900-K284
UNIVER K2010400500
duesen-schlick 20790 MOD.827/0D 4.482/1 噴嘴
MD MICRODETECTORS AT1/AN-1A
BURKERT 電磁閥356819
LEUZE 50142115 L300-B1-M31M23B19-SLM24-SCA
Topworx DXP-MX1GNEB
TEWS TIP114-10R
Gefran-2019 F048726 MK4-A-A-0750-Y 0000X000X00X0XX
Electronicon E62.F81-253D10
DOLD安全繼電器51606 MK9961.35 AC/DC42V 15-300S
SCHNEIDER BDL26040LU
PROTEGO UB/SF-G0-150
BANNER QS18VP6WQ-02956
UNIVER VL13304401900
OMRON A22NS-3BM-NBA-G012-NN
SCHNEIDER ZB4BG77W
LEUZE 68017403 MLC510R40-300H/A
MD MICRODETECTORS MDI58B 171
BURKERT 00187838 8626MFC N2
PMA PCSG-29B
MD MICRODETECTORS MDI58C 661
BOSCH SR-A5.0700.020-10.016 NR1070922541
小強工控 CARLO GAVAZZI PS42L-AT02W1-M00
SCHNEIDER NSYPLA15123T
STAHL [131303]
SCHNEIDER VJDSNTRCKV62M
HYDAC ZBE0P-05（8芯，M12×1，直角插頭帶5米長電纜
電磁閥 GHBX4055.01.B2122-03 線性編碼器 MicroE
DEMAG RS 160ROLLER TYPE B NR:81145744
FESTO SFC-DC-VC-3-E-H2-P8 540367
BURKERT 電磁閥360848
SCHNEIDER NSYMM126
SCHNEIDER ZB5AA88
MD MICRODETECTORS MDI58F 2445
GUTEKUNST D-313F
EUCHNER CES-AP-C01-AH-SB-111145
CASAPPA 79940380 FP40.63-53/30.61 D
EA EB310026
CASAPPA KP30.43-67/PLP20.11,2-EL S
IST BG-58-H-10-PP-01000-1-1-30-V126
BUEHLER S25/25-K-SK661/1400-4XMKS1/W
FHF 22411105
BECKHOFF KL2541
SCHNEIDER VW3M9202
MD MICRODETECTORS UK1F/E9-2EUL
SCHNEIDER XCSPL573
小強工控 CARLO GAVAZZI PS21L-NS11W2-M00
PAULY PLG4761210216/39/3/60x30/-/20/14E i/q/stM10
Hirschmann Laborger?te 9201375
GE USM GO DAC
ATOS DKZOR-T-171-L5 油壓傳動閥
SCHNEIDER RHN412MA76
flucom順序閥LPQ 50 CSL 10
BURKERT 電磁閥269270
FINDER繼電器202480480000PAS
OEZ OLE-16B-1N-030AC
Z-Laser Z10M18B-F-638-lp30
MD MICRODETECTORS MDI58F 1652
SCHNEIDER 9080LBA365212
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PIMATIC P2020-100/25-100+RA+BA+DS
GUTEKUNST彈簧D-213 1.6x16x34
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UNIVER S1033250450
KISSLING D-72215/Wildberg/PSI/011/204/905 15A,250VAC
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ILME ILAS M25L
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VAT Deutschland GmbH 09136-PE24-0001
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RIEGLER 350.1025
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Hawe B2-7
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LEUZE 50118728 CML730i-R20-2870.A/CN-M12
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SCHNEIDER NSYCRN65200P SCHUNK 5515343
PHD GRM2XF SCHNEIDER NSYSF20840P BANNER TL50HZWBGYRUNIVER W1100500100 BECKHOFF C9900-K283 中發(fā)工業(yè)進(jìn)口備件 Eaton Moeller 7-2BFGHD160 中發(fā)工業(yè)進(jìn)口備件 小強工控 CARLO GAVAZZI TSW2111A Eaton Moeller 218150 T0-2-15042/I1
新聞山東NEIDLEIN 81202 RN3 MK4報價
國內(nèi)多數(shù)廠家為（-7~+12℃），也有高溫到15℃。這個溫度范圍通?？梢詽M足輛絕大多數(shù)、民用產(chǎn)品溫度試驗的需要，除非確有特殊需要，如安裝位置靠近發(fā)動機等熱源的產(chǎn)品外，不可盲目利用的工作腔體積也就越小。另一方面，上限溫度越高，對箱壁夾層中保溫材料（如玻璃棉等）的耐熱性要求也越高。箱體密封性的要求也越高，使箱體的制作成本增加。濕度范圍環(huán)境試驗箱給出的溫度指標(biāo)大體上都是2~95%RH或2~98%RH，其實這兩個指標(biāo)是完全一致的，因為濕度控制精度通常為±(3~5)%RH,而大濕度只可能是1%RH,值得注意的是在濕度指標(biāo)后面應(yīng)該注明相應(yīng)的溫度范圍,或給出低露點溫度.因為相對濕度是與溫度直接相關(guān)的,對于同樣的含濕量,溫度越高,相對濕度就越小,如含濕度量d為5g/kg(指1公斤干空氣中含有5克的水蒸汽),當(dāng)溫度為29℃時,相對濕度為2%RH,溫度為6℃時,相對濕度為99%RH,當(dāng)溫度降至4℃以下,相對濕度超過1%,在箱體內(nèi)會出現(xiàn)結(jié)露現(xiàn)象。
