1746-A13/////////////////1746-A13//////////////現(xiàn)貨  * ///////////

1746-A13

 
 ★公司全稱：
 廈門航拓電氣有限公司
★公司地址：
 廈門市思明區(qū)仙岳路582號嘉怡園16樓A單元

產(chǎn)品技術(shù)特點：
*．AB、1756、1746、1747、施耐德140 系列溫度補償寬帶網(wǎng)絡(luò)干線放大器采用采用高性能飛利浦CATV放大模塊，保證了輸出信號功率大,頻帶寬,增益高,線性好,工作穩(wěn)定。
*．前后兩級均衡調(diào)節(jié)電路，使信號電平平坦度好，有效解決電平“鼓包”現(xiàn)象，并且能使電平帶斜率輸出，適用于有線電視遠(yuǎn)距離輸。
*．*的集成電路式溫度補償能改善由于高低氣溫差對電纜及放大器的影響，自動控制輸出電平的高低
 *．分支型﹑分配型輸出選擇功能適合實際線路的需要，節(jié)省開支；輸出饋電顯示功能，方便實用。
*．采用雙面金屬孔化電路板，環(huán)型變壓器電源，使放大器高頻性能優(yōu)異，工作穩(wěn)定可靠。
*．CATV鋁合金壓鑄噴塑外殼，防雨、散熱、屏蔽特性好。
*．220V交流供電或者60V集中饋電型任選。

以常用的級精度的電流電壓變送器為例，從以下方法著手來辨別真假優(yōu)劣。
(1)基準(zhǔn)要穩(wěn),4ma是對應(yīng)的輸入零位基準(zhǔn)，基準(zhǔn)不穩(wěn)，談何精度線性度，冷開機3分鍾內(nèi)4ma的零位漂移變化不超過%以內(nèi);(即),負(fù)載250ω上的壓降為，國外ic心片多用昂貴的能隙基準(zhǔn)，溫漂系數(shù)每度變化10ppm;
(2)內(nèi)電路總計消耗電流<4ma,加整定后等于,而且有源整流濾波放大恒流電路不因原邊輸入變化而消耗電流也隨之變化，國外ic心片采用恒流供電;
(3)當(dāng)工作電壓時,滿量程時,滿量程的讀數(shù)不會因負(fù)載0-700ω變化而變化;變化不超過%以內(nèi)
(4)當(dāng)滿量程時,負(fù)載250ω時,滿量程的讀數(shù)不會因工作電壓變化而變化;變化不超過%以內(nèi);
(5)當(dāng)原邊過載時，輸出電流不超過+10%以內(nèi)，否則plc/dcs內(nèi)供變送器用的24v工作電源和a/d輸入箝位電路因功耗過大而損壞，另外變送器內(nèi)的射隨輸出亦因功耗過大而損壞，無a/d輸入箝位電路的更遭殃;
(6)當(dāng)工作電壓24v接反時不得損壞變送器,必須有極性保護(hù);
(7)當(dāng)兩線之間因感應(yīng)雷及感應(yīng)浪涌電壓超過24v時要箝位,不得損壞變送器;一般在兩線之間并聯(lián)1-2只tvs瞬態(tài)保護(hù)二極管 可抑制每20秒間隔一次的20毫秒脈寬的正反脈沖的沖擊,瞬態(tài)承受沖擊功率;
(8)產(chǎn)品標(biāo)示的線性度%是誤差還是相對誤差,可以按以下方法來辨別方可一目了然:符合下述指標(biāo)是真的線性度%.

 P0916PW P0916PX P0916PY P0916PZ P0916QA P0916QB P0916QC P0916QD P0916QE
 P0916QF P0916QG P0916QH P0916QJ P0916QK P0916QL P0916QM P0916QN P0916QP
 P0916 P0916QR P0916QS P0916QT P0916QU P0916QV P0916QW P0916QX P0916QY
 P0916QZ P0916RA P0916RB P0916RH P0916RJ P0916RK P0916RL P0916SS P0916TA
 P0916TQ P0916UD P0916UH P0916UJ P0916UK P0916UY P0916UZ P0916VA P0916VB
 P0916VC P0916VD P0916VE P0916VF P0916VG P0916VH P0916VJ P0916VK P0916VL
 P0916VM P0916VN P0916VP P0916VQ P0916VR P0916VS P0916VT P0916VU P0916VV
 P0916VW P0916VX P0916VY P0916VZ P0916WA P0916WB P0916WC P0916WD P0916WE
 P0916WF P0916WG P0916WH P0916WJ P0916WK P0916WL P0916WM P0916WN P0916WP
 P0916WQ P0916WR P0916WS P0916XG P0916XH P0916XJ P0916XK P0916XL P0916XM
 P0916XN P0916XP P0916XT P0916XZ P0916YA P0916YB P0916YE P0916YH P0916YW
 P0916YY P0916YZ P0917BZ P0917DW P0917GY P0917GZ P0917HD P0917HU P0917HX
 P0917JA P0917JJ P0917JK P0917JL P0917JM P0917JP P0917JQ P0917JR P0917JS
 P0917JT P0917KY P0917LA P0917LE P0917LH P0917LL P0917LP P0917LS P0917LV
 P0917MF P0917MG P0917MH P0917MJ P0917MX P0917PB P0917QW P0917QZ P0917SY
 P0917VU P0917XN P0917XQ P0917XV P0917XW P0917XX P0917YF P0917YJ P0917YZ
 P0918AE P0918AH P0918CD P0918CZ P0918FJ P0918FK P0918FL P0918FY P0918HN
 P0918HZ P0918JC P0918JF P0918JP P0918JR P0918JT P0918JV P0918JY P0918KE
 P0918KG P0918KJ P0918KM P0918KX P0918LA P0918LC P0918LE P0918LG P0918LJ
 P0918LL P0918LP P0918LW P0918LY P0918MA P0918MD P0918MF P0918MH P0918ML
 P0918MT P0918MV P0918MX P0918ND P0918NG P0918NJ P0918NL P0918NN P0918NQ
 P0918NS P0918NU P0918NX P0918NZ P0918PB P0918PE P0918PH P0918PK P0918PM
 P0918PQ P0918PT P0918PZ P0918QC P0918QE P0918QH P0918QK P0918RK P0918RY
 P0918SQ P0918SS P0918SU P0918SX P0918TG P0918TK P0918TN P0918TR P0918TT
 P0918UH P0918VC P0918VD P0918WQ P0918XR P0918YP P0918YS P0918ZK P0918ZP
 P0920AH P0920AJ P0921CE P0921CF P0921CK P0922BD P0922BE P0922BF P0922BQ
 P0922CR P0922DD P0922DR P0922ED P0922ET P0922EU P0922FM P0922KS P0922KT
 P0922KW P0922LL P0922LN P0922LP P0922MP P0922MZ P0922NF P0922NG P0922QN
 P0922QS P0922RK P0922RV P0922RW P0922SA P0922SD P0922SG P0922SK P0922SN
 P0922SR P0922SU P0922SW P0922SZ P0922TC P0922TE P0922TH P0922TL P0922TV
 P0922UA P0922UD P0922UV P0922UW P0922UX P0922VC P0922VT P0922VU P0922VV
 P0922VW P0922WE P0922WF P0922WN P0922WP P0922WQ P0922WR P0922WS P0922WT
 P0922WU P0922WW P0922XQ P0922XR P0922XS P0922XT P0922XU P0922YA P0922YC
 P0922YH P0922YJ P0922YK P0922YU P0922ZB P0922ZC P0922ZG P0922ZH P0922ZJ
 P0922ZL P0922ZM P0922ZN P0922ZP P0922ZW P0923AG P0923AH P0923BQ P0923BR
 P0923BS P0923BT P0923BU P0923CA P0923CB P0923CC P0923CD P0923DA P0923DB
 P0923DC P0923DD P0923DG P0923DH P0923DN P0923DP P0923DV P0923DY P0923DZ
 P0923FB P0923FQ P0923FS P0923FT P0923GF P0923GG P0923GL P0923GM P0923GN
 P0923GP P0923GQ P0923GR P0923GX P0923GZ P0923HM P0923HN P0923HP P0923HQ
 P0923HR P0923HU P0923HV P0923JA P0923JD P0923JG P0923JK P0923JN P0923JV
 P0923JX P0923JY P0923JZ P0923KA P0923KD P0923KP P0923KS P0923KV P0923LH
 P0923LL P0923LN P0923LR P0923LU P0923LV P0923LW P0923LX P0923MB P0923MC
 P0923MD P0923ME P0923MF P0923MG P0923MH P0923MM P0923MN P0923MP P0923MR
 P0923MX P0923MY P0923MZ P0923NE P0923NF P0923NG P0923NL P0923NN P0923NP
 P0923NS P0923NT P0923NU P0923PF P0923PG P0923PH P0923PJ P0923PL P0923PM
 P0923PN P0923PP P0923PQ P0923PR P0923PS P0923PT P0923QF P0923QG P0923QM
 P0923QS P0923QU P0923QW P0923QX P0923QY P0923VA P0923VD P0923VJ P0923VR
 P0923VS P0923VV P0923ZC P0923ZD P0923ZE P0923ZF P0923ZG P0923ZH
以上產(chǎn)品均有現(xiàn)貨且價格公道合理，以上沒有型號的產(chǎn)品可??！

FOXBORO I/A系統(tǒng)備件

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 11 P0400YE FBM04 0-20mA Input/Output 12
 12 P0400YG FBM06 Pluse Input 1
 13 P0400YV FBM18 Inligent Transmitter 26
 14 P0400ZE FBM04 0-20mA Input/Output 1
 15 P0500RG REV J 49
 16 P0500RU 2
 17 P0500RY REV M 61
 18 P0700TT REV G 21
 19 P0700TT REV H 1
 20 P0700TT REV M 2
 21 P0800DA REV M 10
 22 P0800DC REV K 37
 23 P0800DG REV K 1
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 26 P0903CW ANNUM/Nuberic Keyboard 2
 27 P0903ZE Fieldbus Isolater 39
 28 P0903ZL Power Supply 94
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 30 P0904BR Keyboard 4
 31 P0904HW power supply 500W 8
 32 P0912AR Fiber Optic LAN Converter 1
 33 P0912KA-OC 1
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 38 P0916JZ-0A Termination Assembly FBM242 Fused 2tier Compressio 2
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 40 P0951AK 2
 41 P0951AP FOR FBC21 1
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 51 P0951CQ REV G 99
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