福祿克Fluke T6-1000非接觸電壓電流測試儀
福(fu)祿(lu)克Fluke 368/CN 與 368 FC/CN微安級真有效(xiao)值漏電流(liu)鉗表
福祿(lu)克(ke)Fluke 369/CN 與 369 FC/CN微安級真(zhen)有效(xiao)值漏電(dian)流鉗表(biao)
福祿(lu)克Fluke 378FC諧波與能效篩查鉗表
福(fu)祿克Fluke 376真均(jun)方(fang)根交流/直流鉗形表
福祿克Fluke 302+鉗形表
福祿克(ke)Fluke 303 鉗(qian)形表(biao)鉗(qian)形表(biao)
福祿(lu)克(ke)Fluke 305鉗形表
福(fu)祿克Fluke 190-504彩色數據示波表
福祿克Fluke 120B 系列 ScopeMeter?工業用(yong)手持式示波表
福祿克Fluke-190-204/S ScopeMeter?彩(cai)色(se)數字示波表
福祿克Fluke-190-502 ScopeMeter?彩(cai)色數(shu)字示波表(biao)
福祿克Fluke-190-202 ScopeMeter?彩色數字示波表
福祿克Fluke-190-102 ScopeMeter?彩(cai)色數字示(shi)波表
福祿克Fluke-190-104 ScopeMeter?彩色數字示波表
福祿克Fluke-190-062 ScopeMeter?彩(cai)色數字(zi)示波表
福祿(lu)克Fluke OptiFiber? Pro?OTDR系列(lie)
福祿克Fluke CertiFiber?光纖(xian)損耗測試套件(jian)
福祿克Fluke SimpliFiber? Pro光功率計(ji)和(he)光纖測試(shi)儀
福祿克Fluke Fiber QuickMap?多模光纖距離和故障定位(wei)儀
福祿克(ke)Fluke Fiber OneShot? PRO光纖測試儀
福祿克Fluke VisiFault? Visual Fault Locator電纜連通性測試(shi)儀
福祿(lu)克Fluke MultiFiber? Pro光(guang)(guang)功率計及光(guang)(guang)纖(xian)測試(shi)工具包
福祿克(ke)Fluke FI-7000 FiberInspector? Pro光(guang)纖顯微攝像機
梅凱(梅格)Megger MIT515直流電阻測試儀
梅凱(梅格)Megger MIT525直(zhi)流電阻測(ce)試(shi)儀
梅凱(梅格)Megger S1-568高性能(neng)絕(jue)緣電(dian)阻測試儀
梅凱(梅格)Megger S1-1068高性(xing)能絕緣電阻測試儀
梅凱(梅格)Megger S1-1568高性能(neng)絕緣電阻(zu)測試儀
梅(mei)凱(梅(mei)格)Megger MIT1025直流電(dian)阻(zu)測試(shi)儀
梅(mei)凱(kai)(梅(mei)格)Megger MIT1525直(zhi)流(liu)電阻測試儀
梅凱(梅格)Megger MIT2500高壓手持式絕緣(yuan)和連續性測(ce)試儀
梅凱(kai)(梅格)Megger SVERKER650單相繼(ji)電保護測試儀系統
梅凱(梅格)Megger SVERKER750 及 SVERKER780繼(ji)電保(bao)護器
梅凱(梅格(ge))Megger SVERKER900繼保與(yu)變電(dian)站(zhan)測試系(xi)統
梅(mei)凱(kai)(梅(mei)格)Megger SMRT43多相(xiang)繼保測試儀(yi)
梅(mei)凱(梅(mei)格(ge))Megger SMRT46多相繼保測試儀
梅(mei)凱(kai)(梅(mei)格(ge))Megger SMRT410繼電保護測(ce)試系統
福祿(lu)克Fluke DSX2-8000線纜分析儀
福祿克Fluke DSX2-5000線纜分(fen)析儀
福祿克Fluke DSX2-8000 CH線(xian)纜分析儀
福祿克Fluke DSX2-5000 CH線(xian)纜(lan)分析儀
福祿克Fluke DSX-602 CH線(xian)纜分析儀
福祿(lu)克Fluke DTX-1800線(xian)纜分(fen)析(xi)儀
福祿克Fluke MicroScanner? Cable Verifier電纜驗(yan)測儀(yi)
福祿克Fluke IntelliTone? Pro 200 LAN音(yin)頻發生(sheng)器、示蹤器和探針
福祿克Fluke CertiFiber?光纖損耗(hao)測試(shi)套件
福(fu)祿克Fluke SimpliFiber? Pro光功(gong)率(lv)計(ji)和光纖測試儀
福祿克Fluke Fiber QuickMap?多模光纖距離和故障(zhang)定位儀
福祿(lu)克Fluke Fiber OneShot? PRO光纖測(ce)試儀
福(fu)祿克Fluke VisiFault? Visual Fault Locator電纜連通性(xing)測試(shi)儀
EXFO FVA-600可變衰(shuai)減器
EXFO FiberBasix 50手持光功(gong)率計(ji)
EXFO FLS-300光源
福祿克Fluke OptiFiber? Pro?OTDR系(xi)列(lie)
橫河YOKOGAWA AQ1000掌上型光(guang)時域反射儀
橫河YOKOGAWA AQ1210系(xi)列光時域反射(she)儀
EXFO FTBx-720CLAN/WAN接(jie)入網OTDR光時域反射儀
EXFO FTBx-730CPON FTTx/MDU OTDR光(guang)時域反(fan)射(she)
EXFO FTBx-735C城(cheng)域網/PON FTTx/MDU OTDR光時(shi)域反(fan)射(she)儀(yi)
EXFO FTBx-750C城(cheng)域網/長距離OTDR光(guang)時域反射儀
EXFO MaxTester 710BOTDR光時域反射儀
福祿(lu)克Fluke T6-1000非接觸電(dian)壓(ya)電(dian)流測試儀
福(fu)祿克Fluke 368/CN 與 368 FC/CN微安(an)級真有效(xiao)值(zhi)漏電流(liu)鉗表
福祿克(ke)Fluke 369/CN 與 369 FC/CN微安級(ji)真有效(xiao)值漏(lou)電流(liu)鉗表(biao)
福(fu)祿克Fluke 378FC諧波與能效篩查鉗表
福祿克Fluke 376真均方根(gen)交流(liu)/直流(liu)鉗形表
福祿克Fluke 302+鉗形表
福祿克Fluke 303 鉗形(xing)表(biao)鉗形(xing)表(biao)
福祿克Fluke 305鉗(qian)形表
福祿克Fluke 1621接(jie)地(di)電阻測(ce)試儀
梅凱(梅格)Megger DET14C/DET24C接地電阻鉗形數字測試儀
梅凱(kai)(梅格)Megger DET3TC/DET3TD三極接地電阻(zu)測試儀
梅凱(梅格)Megger DET2/3高(gao)分辨率(lv)接地測(ce)試(shi)儀
梅(mei)凱(梅(mei)格)Megger DET4T2系(xi)列接地電阻測試儀(yi)和土壤(rang)電阻測試儀(yi)
福(fu)祿克(ke)Fluke 1623-2/1623-2KIT接地電阻測試儀
福(fu)祿克(ke)Fluke 1625-2/1625-2KIT接地電阻測試儀
福祿克Fluke 1630-2FC接地環(huan)路電阻測試鉗表
福祿(lu)克Fluke 190-504彩(cai)色數據示波表
泰(tai)克Tektronix MDO3000混合域(yu)示波器(qi)
福祿克Fluke 120B 系列 ScopeMeter?工業用手持式示波表
福(fu)祿克(ke)Fluke-190-204/S ScopeMeter?彩色數字(zi)示波表
福祿克Fluke-190-502 ScopeMeter?彩色數字示(shi)波表
福祿克Fluke-190-202 ScopeMeter?彩色數字示波表
福祿克(ke)Fluke-190-102 ScopeMeter?彩色數(shu)字示波表
福祿克Fluke-190-104 ScopeMeter?彩色數字示(shi)波表
福祿克Fluke 438-II電能(neng)質(zhi)量(liang)和能(neng)量(liang)分析(xi)儀
福祿克Fluke 435-II電能(neng)質量和能(neng)量分(fen)析儀
福祿克Fluke 434-II電能質(zhi)量和能量分析儀
福(fu)祿克Fluke 437-II系列電能質量分析儀
C.A 8336三(san)相(xiang)電能質量分析儀
福祿(lu)克Fluke 1770 系(xi)列三(san)相電能質量(liang)分析儀
福祿克(ke)Fluke 1732 和 1734手持式三相功率計
福祿克Fluke 1736 和(he) 1738三相電能質量記錄器儀
梅凱(梅格)Megger DLRO2手持式2A低(di)電阻歐姆表
梅凱(梅格(ge))Megger MOM2手提200 A微歐表
梅(mei)凱(kai)(梅(mei)格(ge))Megger DLRO200數字微(wei)歐表
梅(mei)凱(梅(mei)格)Megger DLRO600數(shu)字(zi)微歐計
梅凱(梅格)Megger DLRO10/DLRO10X低阻值歐姆表
梅(mei)凱(梅(mei)格(ge))Megger DLRO10HD低阻歐姆(mu)表
梅凱(梅格)Megger DLRO100系(xi)列(lie)數字低電阻歐姆計
梅凱(kai)(梅格)Megger MOM600A微(wei)歐計(ji)
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In the DSX-5000 CableAnalyzer, this is implemented automatically. If you test to either “ISO11801 Class Ea Channel” or “ISO11801 Class?PL2 Class Ea” and the insertion loss measurement is less than 12 dB at 450 MHz, a relaxed?NEXT limit may be applied. It is not possible to change PASS/FAIL limits in a field tester based on the measured result of a parameter. Compliance with ISO/IEC 11801 Class EA?requirements can be verified using the DTX CableAnalyzer in one of two ways:
by obtaining a PASS condition using the regular “ISO11801 Channel Class Ea” or ”ISO11801 PL2 Class Ea” test option, or
by obtaining a PASS condition using an alternate “ISO11801 Chan Class Ea Low IL” or “ISO11801 PL2 Class Ea Low IL” option; if a PASS* conditions applies to insertion loss, the true result should be a PASS, as explained in the following.
ISO/IEC 11802:2002 Amendment 2 (Published April 2010) – Table A.5 “For Configurations PL1, PL2, and CP1, whenever the class EA?permanent link insertion loss at 450 MHz is less than 12 dB, subtract the term 1,4((f – 450)/50) to the equation stated above for the range of 450 MHz to 500 MHz.” ANSI/TIA-568-C.2 (Published August 2009) There is no such rule/requirement in this North American Standard for Category 6A. Reality check It is very unlikely that implementing the “12 dB rule” is going to turn your failing NEXT and PS NEXT results into a PASS. That’s because the NEXT limit is relaxed between 450 MHz and 500 MHz only, and not by much. Let’s take an example:
Tested to “ISO11801 PL2 Class Ea”
Tested to “ISO11801 PL2 Class Ea Low IL”
It did not change the outcome of the test result, because the failing NEXT was not between 450 MHz and 500 MHz. This may be better explained using an animation:
Known issue in previous DTX code The “ISO ClassEa Ch AMD1 Low IL” and “ISO ClassEa PL2 25N1599?Lo IL” test options in the DTX had an insertion loss limit of 12 dB at 450 MHz to prevent the user from incorrectly applying the “12 dB rule” detailed previously. The DTX CableAnalyzer (Version 1.36 limits) had an insertion loss limit that has a step response at 450 MHz as indicated below:
This could result in a measurement incorrectly assigning a FAIL for the insertion loss parameter. It’s incorrect because the existing limit for insertion loss still applies; the 12 dB is only used for assessing whether the relaxed NEXT limit should be applied. As a result, we have changed the limit for insertion loss in the DTX CableAnalyzer and LinkWare software. The above result will now look like:
The change indicated was incorporated into the DTX CableAnalyzer Software Version 2.22 and LinkWare 6.0 releases. If the AUTOTEST fails now, it’s because it failed to meet the 12 dB insertion loss requirement at 450 MHz, indicating that this test option cannot be used to achieve a PASS result for the Class EA?channel. It is possible for the DTX CableAnalyzer to report a PASS* for insertion loss @ 450 MHz if the measured insertion loss at 450 MHz is closer to 12 dB than the specified accuracy of the DTX CableAnalyzer. This PASS* for insertion loss?indicates that the DTX CableAnalyzer cannot determine within its measurement accuracy whether the relaxed NEXT and PS NEXT limits are applicable. It does not necessarily indicate that the measured insertion loss is within the measurement uncertainty of the limits for insertion loss that is applicable to ISO/IEC 11801 Class EA?cabling. If necessary, the true insertion loss performance of the cabling can be verified using the regular “ISO11801 Channel Class Ea” and “ISO11801 PL2 ClassEa”?test options, and observing the test result for insertion loss. If this result does not contain a PASS* result for insertion loss, the PASS* for insertion loss of the ISO11801 Chan ClassEa?Low IL test, technically speaking, should be a PASS and not PASS*. This is a limitation of the code in the DTX CableAnalyzer. In conclusion: The overall result of an ISO/IEC 11801 Class EA?test should be as follows:
If either the “ISO11801Channel Class Ea” or “ISO11801Chan Class Ea Low IL” test shows a pass, the result is a PASS.
If either the?”ISO11801 PL2?ClassEa” or “ISO11801 PL2 ClassEa Low IL”?test shows a pass, the result is a PASS.
If the “ISO11801Chan Class Ea Low IL” or “ISO11801 PL2 ClassEa Low IL”?test shows a PASS* that is caused by the result for insertion loss only, the result of the “ISO11801Chan Class Ea Low IL” or “ISO11801 PL2 ClassEa Low IL”?should be reviewed for insertion loss only; if this result is a PASS, the result of the “ISO11801Chan Class Ea Low IL” or “ISO11801 PL2 ClassEa Low IL” test can be considered to be PASS (the ‘*” is not applicable).