沈樵综合在线,一区二区三区乱码,免费资源一区二区三区,91超碰碰,av极品一线天,日韩免费高清一区二区,国产蜜尤福利在线,嗯啊91在线观看,精品一区二三

行業(yè)產(chǎn)品

  • 行業(yè)產(chǎn)品

深圳市金啟泰電子有限公司


當(dāng)前位置：深圳市金啟泰電子有限公司>>電子測(cè)量?jī)x器>>萬(wàn)用表>>英國(guó)TTi 微歐姆電阻表

英國(guó)TTi 微歐姆電阻表

返回列表頁(yè)
參  考  價(jià)面議
具體成交價(jià)以合同協(xié)議為準(zhǔn)

產(chǎn)品型號(hào)BS407

品       牌

廠商性質(zhì)經(jīng)銷(xiāo)商

所  在  地深圳市

聯(lián)系方式：黃慶松查看聯(lián)系方式

更新時(shí)間：2018-05-15 15:29:54瀏覽次數(shù)：808次

聯(lián)系我時(shí)，請(qǐng)告知來(lái)自 儀表網(wǎng)

經(jīng)營(yíng)模式：經(jīng)銷(xiāo)商

商鋪產(chǎn)品：38條

所在地區(qū)：廣東深圳市

聯(lián)系人：黃慶松 （經(jīng)理）

產(chǎn)品簡(jiǎn)介

英國(guó)TTi BS407 微歐姆電阻表
BS407 - Precision Micro Ohmmeter
High basic accuracy of 0.1%
Wide range of 1? Ohm to 20k Ohm
Current reversal switch for detecting thermal emf effects
Current di

詳細(xì)介紹

英國(guó)TTi  BS407 微歐姆電阻表

BS407 - Precision Micro Ohmmeter

  High basic accuracy of 0.1%
  Wide range of 1? Ohm to 20k Ohm
  Current reversal switch for detecting thermal emf effects
  Current diversion switch for easy zero-ing
  Four terminal measurement using Kelvin clip leads
  Battery operation with built-in charger
  20mV clamp for ?dry circuit? testing

A dedicated but versatile instrument

The BS407 is an instrument which is fully optimised for the task of accurate measurement of low resistances with a best resolution of 1?Ohm.
Most multimeters offer a best resolution which is at least one thousand poorer than this. A very high resolution multimeter may attempt to resolve fairly low resistances, but it does so by resolving extremely low voltages （typically one nano-volt per micro-ohm）, making it subject to severe errors from thermal emf effects and noise.
In contrast, the BS407 generates sufficient test voltage across the unknown resistance to combat noise and reduce thermal emf effects to manageable levels. Current reversal can then be used to eliminate any remaining thermal offset.

Rapid 4-terminal measurement

The BS407 uses a four terminal measurent system via high quality Kelvin Clip leads （supplied）. 
For speed and convenience front panel switches are provided for current diversion （allowing in-situ zero adjustment） and current reversal （for identifying thermal emf errors）. An LED indicator warns of open circuit leads thus preventing spurious results from being recorded.

 

Battery operation with built-in charger

The BS407 is a fully portable instrument which operates from NiMh rechargeable batteries. The battery charger is built into the instrument and can be operated continuously during bench use.

Wide measurement range

The BS407 has eight push-button selected decade measurement ranges from 1.999mOhms up to 19.99kOhms. 
This unusually wide range makes it suitable for a greater variety of applications than other micro-ohmmeters.
A front panel operated ?clamp? switch is available to limit the maximum voltage across the unknown to 20mV. This is a requirement for the measurement of switch contact resistances to international standards.

High resolution and accuracy

With a lowest range of 1999?Ohms the BS407 can resolve one micro-ohm.
Precision analogue circuitry ensures a high measurement accuracy of up to 0.1% of reading ? 1 digit.

   
RANGES AND ACCURACY
Accuracies apply over a temperature range of 18oC to 28oC after a warm-up period of 30 minutes, and with the test connections in thermal equalibrium. Specificied accuracy applies for a period of one year.
 
RangeResolutionTest CurrentF.S. VoltageAccuracy
1999 ? Ohms1 ? Ohm250 mA500 ?V? 0.1% r ? 0.4% scale
19.99 m Ohms10 ? Ohm50 mA1 mV? 0.1% r ? 0.2% scale
199.9 m Ohms100 ? Ohm10 mA2 mV? 0.1% r ? 0.1% scale
1999 m Ohms1 m Ohm5 mA10 mV? 0.1% r ? 0.1% scale
19.99 Ohms10 m Ohm500 ?A10 mV? 0.1% r ? 0.1% scale
199.9 Ohms100 m Ohm50 ?A10 mV? 0.1% r ? 0.1% scale
1999 Ohms1 Ohm50 ?A100 mV? 0.1% r ? 0.1% scale
19.99 k Ohms10 Ohm10 ?A200 mV? 0.1% r ? 0.2% scale

FACILITIES
20mV Clamp
Operated by front panel switch. Limits the open circuit voltage across the unknown to 20mV （+0mV, -4mV） for ?dry circuit? testing of switch and relay contacts. Not available on the 2000W and 20kW ranges.
Reverse Polarity
Operated by front panel switch. Reverses the polarity of the test current, enabling thermal emf effects to be detected and quantified.
Set Zero
Operated by non-latching front panel switch and rotary offset control. Diverts the test current way from the unknown allowing zero adjustment to be undertaken with the test leads in place.

MEASUREMENT SOURCE
Source EMF:  18 mV ? 2mV with 20mV Clamp Active< 6V with 20mV Clamp Inactive
Compliance:  > 1V （> 0.5V on 1999? Ohm range）. 
（Compliance is the maximum voltage that can be tolerated from additional resistance in series with the force connections）
PROTECTION
The instrument is protected against the back-emf of its own test current from any inductance.
The instrument is protected against external voltage sources delivering up to one amp. Protection against greater abuse is provided by non-flamable fusible resistors.
POWER SOURCE
Battery
Four internal Ni-MH cells （non removable）. Operating time depends upon the test current flowing - >150 hours with no test current, > 8 hours with maximum test current （1999?W range）. Low battery indication in display.
AC Line
Built-in battery charger allows instrument operation while re-charging.Nominal re-charge time 16 hours.
GENERAL 
Display: 3.5 digit LCD with 12.5mm characters.
Casing: ABS casing with metal tilt stand giving 15o angle.
Power: 230V or 115V ?14% 50/60Hz, adjustable internally; 20VA max. Installation Category II.
Operating Range: +5oC to + 40oC, 20% to 80% RH.
Storage Range: -10oC to +65oC
Environmental: Indoor use at altitudes to 2000m, Pollution Degree 2.
Electrical Safety: Complies with EN61010-1.
EMC:  Complies with EN61326.
Size:  220（W） x 82（H） x 230（D） mm, （10.3 x 3.4 x 9.2"） excluding feet and tilt stand.
Weight:  1.3 kg （3lb）.
ACCESSORIES
SUPPLIED
Kelvin Test Clip Leads, Operating Manual, IEC Mains Lead
OPTIONAL
Carrying Case

關(guān)鍵詞：電阻表

您感興趣的產(chǎn)品PRODUCTS YOU ARE INTERESTED IN

儀表網(wǎng) 設(shè)計(jì)制作，未經(jīng)允許翻錄必究 .? ? ? Copyright(C)?2021 http://m.liuyangwu.com,All rights reserved.

以上信息由企業(yè)自行提供，信息內(nèi)容的真實(shí)性、準(zhǔn)確性和合法性由相關(guān)企業(yè)負(fù)責(zé)，儀表網(wǎng)對(duì)此不承擔(dān)任何保證責(zé)任。 溫馨提示：為規(guī)避購(gòu)買(mǎi)風(fēng)險(xiǎn)，建議您在購(gòu)買(mǎi)產(chǎn)品前務(wù)必確認(rèn)供應(yīng)商資質(zhì)及產(chǎn)品質(zhì)量。

會(huì)員登錄

×

請(qǐng)輸入賬號(hào)

請(qǐng)輸入密碼

=

請(qǐng)輸驗(yàn)證碼

收藏該商鋪

請(qǐng) 登錄 后再收藏

提示

您的留言已提交成功！我們將在第一時(shí)間回復(fù)您~
贡山| 昌乐县| 巴青县| 保德县| 修水县| 五原县| 萨嘎县| 清原| 临邑县| 象州县| 光山县| 嘉义市| 马尔康县| 分宜县| 景谷| 崇州市| 五大连池市| 河间市| 鹰潭市| 湛江市| 怀柔区| 青州市| 彰化县| 二连浩特市| 治县。| 宁晋县| 揭东县| 兴隆县| 长兴县| 海阳市| 广南县| 巴青县| 桐梓县| 定日县| 陆丰市| 峨眉山市| 东方市| 德州市| 和平县| 南澳县| 化州市|