力士樂DDS02.1-W/050-D保證全新原裝，沖量大促銷！德國
一般情況下，變送器零位調(diào)整只是對(duì)系統(tǒng)有一個(gè)零位的偏移量，但對(duì)量程的調(diào)整會(huì)對(duì)零點(diǎn)有1/4的影響。，某儀表廠生產(chǎn)的輸出為（4～2）mA的變送器，若零點(diǎn)（4mA）已調(diào)好，在滿量程時(shí)輸出為2.1mA,則調(diào)整滿度旋鈕，調(diào)整量為（2.1-2.）1/4=.25mA，使?jié)M量程輸出為（2.-.25）=19.975mA。卸壓后零點(diǎn)輸出大概為3.975mA，調(diào)整零點(diǎn)至4.mA，再加壓至滿量程調(diào)整。
BALLUFF BES-517-132-M7-H (Used, Cleaned, Tested 2 year warranty)
BALLUFF BES-516-542-BO-H-05 (Surplus New In factory packaging)
BALLUFF BES-516-542-BO-H-05 (Surplus New In factory packaging)
BALLUFF BES-515-356-SK-C (Used, Cleaned, Tested 2 year warranty)
BALLUFF BES-515-356-SK-C (Used, Cleaned, Tested 2 year warranty)
BALLUFF BLS 18KW-XX-1P-L-02 BEAM PHOTOELECTRIC EMITTER *NEW IN A FACTORY BAG*
BALLUFF BLS 18KW-XX-1P-L-02 BEAM PHOTOELECTRIC EMITTER *NEW IN A
BALLUFF RXD-0801-J-01-S712-1 (Surplus New not in factory packaging)
BALLUFF RXD-0801-J-01-S712-1 (Surplus New not in factory packaging)
BALLUFF BMO-A01-J-PU-CS-75 (Used, Cleaned, Tested 2 year warranty)
BALLUFF BES-516-324-SA-26-05 (Surplus New In factory packaging)
BALLUFF BES-516-324-SA-26-05 (Surplus New In factory packaging)
BALLUFF BOS-S50-PL-5-C01-PP (Surplus New In factory packaging)
BALLUFF BKS-S22-MIB-6-PU-05 (Surplus New In factory packaging)
BALLUFF BKS-S22-MIB-6-PU-05 (Surplus New In factory packaging)
BALLUFF BCS-012-NSB1-L-S4 (Used, Cleaned, Tested 2 year warranty)
BALLUFF BCS-012-NSB1-L-S4 (Used, Cleaned, Tested 2 year warranty)
BALLUFF BCS-M30-KN2-UST15G-AV02 (Surplus New In factory packaging)
BALLUFF BLS-35K-XX-OH-BO-L (Surplus New not in factory packaging)
BALLUFF C21BE3-00-TY-300F (Surplus New In factory packaging)
BALLUFF BNS-519-X496-100-P13 (Surplus New In factory packaging)
BALLUFF BNS-519-X496-100-P13 (Surplus New In factory packaging)
BALLUFF BES-516-343-SA16-C-PU-03 (Surplus New In factory packaging)
BALLUFF BCS034-WO-5-L3 (Surplus New not in factory packaging)
BALLUFF BCS034-WO-5-L3 (Surplus New not in factory packaging)
BALLUFF BNS-542-B04-D12-72-10 (Surplus New In factory packaging)
BALLUFF BESQ08ZC-NSC20B-BP06 (Surplus New not in factory packaging)
BALLUFF BESQ08ZC-NSC20B-BP06 (Surplus New not in factory packaging)
BALLUFF BES-516-300-S295/1.025"-S4 (Surplus New not in factory packaging)
Balluff Photoelectric Sensor BOS 26K-PA-1HC-S4-C Used #38923
Balluff BES 516 420 E4 L Sensor BES516420E4L - Used
Balluff BES 516 420 E4 L Sensor BES516420E4L - Used
BALLUFF BES-516-325-E5-R5 (Used, Cleaned, Tested 2 year warranty)
BALLUFF BNS-519-FD-60-111 (Used, Cleaned, Tested 2 year warranty)
BALLUFF BNS-519-FD-60-111 (Used, Cleaned, Tested 2 year warranty)
BALLUFF BNS-819-B03-D12-72-10 (Surplus New In factory packaging)
BALLUFF BNI-PBS-104-000-Z001 (Used, Cleaned, Tested 2 year warranty)
Balluff BES 516-324-E4-C-S4-00,2 Scratch & Dent #62627
BALLUFF BNS-819-B04-D08-46-13 (Surplus New In factory packaging)
BALLUFF BNS-819-B04-D08-46-13 (Surplus New In factory packaging)
BALLUFF BES-515-420-S21-L (Surplus New In factory packaging)
3HNE 00324-1
3HNE 00325-1
3HNE 00327-1保證全新原裝，沖量大促銷！
3HNE 00330-1
3HNE 00331-1
3HNE 00332-1
3HNE 00333-1
3HNE 00335-1
3HNE 00340-1
3HNE 00347-1
3HNE 00378-1
3HNE 00413-1
3HNE 00414-1
3HNE 00421-1保證全新原裝，沖量大促銷！
3HNE 00451-1
3HNE 00471-1
3HNE 00496-1
3HNE 00506-1
3HNE 00554-1
3HNE 00574-1
3HNE 00578-1
3HNE 00589-1
3HNE 00598-1
3HNE 00600-1
3HNE 00601-1
3HNE 00609-1
3HNE 00625-1
3HNE 00628-1保證全新原裝，沖量大促銷！
Allen Bradley 800E-D3 Lamp Module 800ED3
ALLEN BRADLEY 5130-KA /A INTERFACE MODULE
ALLEN BRADLEY 700-PK400A1 U 20A 600V 4 Coil120 VACV USED
Allen-Bradley #100-C12 -FREE SHIPPING 30 day Warranty
Allen Bradley 140-MN-0400 SER D
ALLEN BRADLEY 800MR-B2 SER. A UNMP
ALLEN-BRADLEY COMPACT IO 1769-ECR SER A REV 2
USED ALLEN BRADLEY 800S-3SB PUSH BUTTON STATION 800S3SB
ALLEN BRADLEY 700DC-P800Z24 RELAY, HEAVY-DUTY INDUSTRIAL, USIP
ALLEN BRADLEY 160-BMB1 DYNAMIC BRAKE MODULE
1793IB16 1793-IB16 Allen Bradley Flexbus 24 VDC Sink Input
Allen Bradley 1771asbd Modul Gebraucht
ALLEN-BRADLEY 1771-0B 17710B SERIES C
ALLEN BRADLEY 1492-GH025 SER. B NSMP
ALLEN BRADLEY 700-PLLA1 SER. B MECHANICAL LATCH UNIT * USED *
Allen Bradley 140M-C-TE 140M-D8E
ALLEN BRADLEY 800T-FXP16XA1 SER N SELECTOR SWITCH
ALLEN BRADLEY 1771-OBD SER. B 10-60VDC OUTPUT MODULE 1771-OBD/B
ALLEN BRADLEY 8-592 SER B PLUG IN MODULE *USED*
Allen Bradley 193-A124 rele 66-110 A. Made in USA.
ALLEN BRADLEY 700-P200A1 SER. A AC RELAY 115-120V (AS PICTURED) * USED *
Allen Bradley 2A83 Coil 240 V 60 HZ Used MIssing Screw
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不銹鋼反應(yīng)釜以其優(yōu)良的耐腐蝕性能和較低的價(jià)格，贏得越來越多客戶的喜愛和信賴；因此在攪拌與反應(yīng)釜結(jié)合處的密封的選擇對(duì)于密封效果、使用安全、節(jié)約成本等都顯得特別重要，現(xiàn)對(duì)如何選擇合適的密封形式做出如下建議：1.首先要明確密封選擇的依據(jù)：是釜內(nèi)的工作壓力，第二是工作物料的性質(zhì)。還有一個(gè)就是設(shè)備的工作溫度。其次要明確不銹鋼反應(yīng)釜所用密封的類別：反應(yīng)釜所用密封即通常所說的軸封有兩類，是填料密封，第二是機(jī)械密封，機(jī)械密封又分為單機(jī)封（即單端面機(jī)械密封）和雙機(jī)封（即雙端面機(jī)械密封），單機(jī)封全套還包括水夾套，雙機(jī)封則較為復(fù)雜，除水夾套（必須有循環(huán)冷卻水）外，還包括配套的支架、平衡罐等。如何選擇合適的密封：在常溫常壓，物料沒有揮發(fā)性也不易燃易爆的使用條件下，要選擇填料密封；在壓力小于4公斤，物料的易揮發(fā)性和易燃易爆性一般的使用條件下，就要選擇單機(jī)封；在工作壓力超過4公斤（但要小于1公斤），物料的易揮發(fā)性和易燃易爆性很強(qiáng)的使用條件下，則必須選擇雙機(jī)封。各種密封的優(yōu)缺點(diǎn)：填料密封價(jià)格便宜，但只適合普通的使用條件和物料；單機(jī)封價(jià)格適中，可以在大多數(shù)使用條件下通用；雙機(jī)封價(jià)格貴，但在苛刻的工作條件下必須使用。
