一氧化碳變送器,CO-T1一氧化碳變送器,一氧化碳傳感器
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ZZZ-FA010-01手持式紅外CO2分析儀
Synco700模塊RMZ78西門子Synco700通用擴(kuò)展模塊RMZ78
關(guān)鍵詞：西門子,Synco700,通用擴(kuò)展模塊,RMZ78
沈陽新華控制系統(tǒng)有限公司供應(yīng)西門子Synco700通用模塊RMZ78系列產(chǎn)品。產(chǎn)品具體信息請(qǐng)參考以下產(chǎn)品詳細(xì)介紹。
產(chǎn)品簡介：當(dāng)Synco700控制器自身輸入輸出點(diǎn)數(shù)不足時(shí)，可以通過這些模塊進(jìn)行功能擴(kuò)展。
工作電源：由控制器供電
輸入信號(hào)：0...1000歐姆，Pt1000，Ni1000，DC 0...10V
模擬輸出信號(hào)：DC 0...10V
繼電器輸出：
切換電壓：AC19...265V；
切換電流：4（3）A
產(chǎn)品參數(shù)：
| 類別 | 型號(hào) | 輸入 | 輸出 | 控制回路 | 功耗（VA） | ||||
| AI | DI | AO | DO | 數(shù)量 | 模式 | ||||
| SYNCO 700系列 | 擴(kuò)展模塊 | RMZ785 | 8 | 0 | 0 | - | PID | 2 | |
| 擴(kuò)展模塊 | RMZ787 | 4 | 3 | 0 | - | PID | 2 | ||
| 擴(kuò)展模塊 | RMZ788 | 4 | 4 | 2 | - | PID | 2 | ||
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模塊連接器RMZ780
沈陽新華供應(yīng)其他西門子控制器產(chǎn)品，包括：RDV62、RDV69、RWD60、RWD62/68/32/82、RWD34/44/45/31、SEH62.1、ACX32.000/ALG、Synco200_RLU...、Synco700_RMU.../RMS...、Synco700_RMZ79...、Synco700_RMZ78... 等。歡迎來電垂詢．
HPLC>98%辰光生物生產(chǎn)：wu頭堿 302-27-2 Aconitine對(duì)照品原料藥
wu頭堿
英文名稱：Aconitine
植物來源：附子提取物；毛莨科植物烏頭（Aconitum carmochaeli Debx.）的子根。含主要有效成分（wu頭堿，新wu頭堿，次wu頭堿）
產(chǎn)品基本信息
規(guī)格：wu頭堿 HPLC大于98%
CAS 號(hào)： 302-27-2
分子量：645.74g/mol
分子式：C34H47NO11
同系列其它產(chǎn)品現(xiàn)貨供應(yīng)：
| 序號(hào) | 英文名稱 | 中文名稱 | CAS號(hào) | 含量（HPLC） |
| HA001001 | Aconitine | wu頭堿 | 302-27-2 | 98% |
| HH001002 | Hypaconitine | 次wu頭堿 | 6900-87-4 | 98% |
| HM001003 | Mesaconitine | 新wu頭堿 | 2752-64-9 | 98% |
| HI001004 | Indaconitone | 印wu頭堿 | 4491-19-4 | 98% |
| HB001005 | Benzoylmesaconine | 苯甲酰新wu頭原堿 | 63238-67-5 | 98% |
| HB001006 | Benzoylaconine | 苯甲酰wu頭原堿 | 466-24-0 | 98% |
| HB001007 | Benzoylhypacoitine | 苯甲酰次wu頭原堿 | 63238-66-4 | 98% |
| HL001008 | Lappaconitine | 高烏甲素 | 32854-75-4 | 98% |
| HA001009 | Acetylaconitine | 乙酰wu頭堿 | 77181-26-1 | 98% |
| HL001010 | Lappaconitine Hydrobromide | 氫溴酸高烏甲素 | 97792-45-5 | 98% |
| HA001011 | Aconine | wu頭原堿 | 509-20-6 | 98% |
| HM001012 | Mesaconine | 新wu頭原堿 | 6792-09-2 | 98% |
| HH001013 | Hypaconine | 次wu頭原堿 | N/A | 98% |
| HB001014 | Bulleyaconitine A | 草烏甲素 | 79592-91-9 | 98% |
| HY001015 | Yunaconitine | 滇wu頭堿 | 70578-24-4 | 98% |
| HF001016 | Foresaconitine | 麗江wu頭堿 | 73870-35-6 | 98% |
寶雞市辰光生物科技有限公司 張 博 文
（致力天然化合物：①98%標(biāo)準(zhǔn)提取物kg量產(chǎn)；②中藥標(biāo)準(zhǔn)物質(zhì)研發(fā)、分離純化；③天然藥物活性單體供應(yīng)）
我公司業(yè)研制、銷售天然中藥標(biāo)準(zhǔn)品/對(duì)照品，目庫存可提供3000多種單體，并可根據(jù)客戶要求訂制所需化合物，大部分常規(guī)產(chǎn)品均可實(shí)現(xiàn)百克到kg的量產(chǎn)制備需求。
質(zhì)量承諾：為保證對(duì)照品質(zhì)量，公司產(chǎn)品通過嚴(yán)格的質(zhì)量控制，提供全面的檢測(HPLC/MS/1HNMR/13CNMR），到貨15天內(nèi)如有產(chǎn)品質(zhì)量問題隨時(shí)退、換貨。
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【Fax】
【QQ】 1595225505 【微信】
鈷60輻射檢測儀代理銷售鈷60輻射檢測儀，CO60測試儀，鈷60放射性檢測儀
Inspector Alert是小型的手持式微處理器控制的高靈敏度射線檢測儀,能檢測αβγ和Χ射線。直接讀出射線水平。另外，有可調(diào)整的定時(shí)器和外部校準(zhǔn)鍵。該劑量儀采用一支蓋革-彌勒計(jì)數(shù)管來測定αβγ及Χ射線輻射，數(shù)字顯示，探頭為內(nèi)置式（INSPECTOR Alert），探頭為外置式（INSPECTOR EXP）。
儀器介紹1、采用一只蓋革-彌勒計(jì)數(shù)管來測定α、β、γ和X射線輻射 2、“安全第一”（Safety First）的校準(zhǔn)功能能夠避免校準(zhǔn)人員的輻射接觸 3、檢測儀符合歐洲CE認(rèn)證要求 主要特點(diǎn)1、內(nèi)置鹵素淬滅劑GM探測器，對(duì)α、β射線源的靈敏度很高 2、四位液晶顯示，可選擇mR/hr、CPM、mSv/hr、CPS或Total/Timer等單位 3、總計(jì)數(shù)/定時(shí)器功能對(duì)輕微污染進(jìn)行定時(shí)的精確檢測，定時(shí)時(shí)間可選擇1分鐘－－ 24小時(shí)技術(shù)參數(shù) 1、測量范圍：mR/hr（毫倫/小時(shí)）：0.001—110.0，CPM（每分鐘計(jì)數(shù)）：0—300,000 μSv/hr（微希伏/小時(shí)）：0.01—1,100，CPS（每秒鐘計(jì)數(shù)）：0—5,000，總計(jì)數(shù)： 1—9,999,000 2、效 率：Sr-90（546kev,2.3MeV βmax）約75% C-14（156kev βmax）約11% Bi-210（1.2MeV βmax）約64% Am-241（5.5MeV α）約36% 3、靈 敏 度：3500CPM/ mR/hr（對(duì)于Cs-137） 4、精 度：±15% 5、溫度范圍：-10℃－－-+50℃ 6、電 源：1節(jié)9V堿性電池，電池壽命 200小時(shí)7、尺寸重量：150×80×30mm 350克（含電池）應(yīng)用領(lǐng)域●探測和測定表面沾污●在操作放射性核素時(shí)監(jiān)測可能存在的放射性暴露量●調(diào)查環(huán)境污染●測定惰性氣體及其它低能放射性核素●建筑裝飾材料放射測定 射線危害：低劑量的放射性射線輻射（天然背景輻射的變化范圍），對(duì)人體無害或風(fēng)險(xiǎn)甚低，但達(dá)到一定劑量則會(huì)對(duì)人體有害，可引起癌癥、白內(nèi)障、不孕癥、突變、萎縮效應(yīng)、壽命減短,甚至死亡
應(yīng)用：偵測放射性射線，以采取相應(yīng)防護(hù)措施。海關(guān)和邊境巡邏，政府執(zhí)法部門，檢疫檢驗(yàn)，應(yīng)急事故處理，核電廠、銀行、政府、實(shí)驗(yàn)室等部門安全巡查，醫(yī)學(xué)廢料處理，消防隊(duì)，采礦業(yè)，科學(xué)實(shí)驗(yàn)，個(gè)人保護(hù)，連續(xù)監(jiān)測
參考信息（來自中國輻射防護(hù)研究院）
居民的劑量限值為每年1mSv。即0.114μSv/hr。
放射性職業(yè)人員劑量限值為每年20mSv，但任何一年不能超過50mSv。
電磁輻射測試儀價(jià)格，核輻射檢測儀，電磁輻射檢測儀，輻射監(jiān)測儀，電磁輻射儀，防輻射檢測儀，電磁波檢測儀，電磁輻射分析儀，手機(jī)輻射檢測儀，電腦輻射檢測儀，電磁輻射檢測器，手機(jī)檢測儀，輻射檢測儀，便攜式輻射檢測儀，電腦輻射測試儀，廣州儀弘電子有限公司
公司全稱：廣州儀弘電子有限公司電 話： 18102736868 傳 真： 聯(lián) 系 人：韋先生 QQ：1211088505公司地址：廣州市海珠區(qū)東曉路東曉橫街152號(hào)（東曉花園）506室網(wǎng)址：http://www.yihong1718.com/郵箱：1211088505@qq.com510230
COD去除劑JCA
【產(chǎn)品介紹】
本產(chǎn)品是專門針對(duì)線路板、電鍍及其他各行業(yè)廢水中可溶性COD難去除而特別研發(fā)的一種新型化學(xué)藥劑，對(duì)COD的去除有明顯的效果，配合本公司的其它產(chǎn)品使用，效果更佳，適用于任何COD廢水的處理。
【項(xiàng)目指標(biāo)】
| 項(xiàng)目 | 指標(biāo) |
| 形態(tài) | 固體 |
| 有效成分含量（%，≥） | 95 |
| pH值(1%水溶液) | 6～7 |
| 含水率（％，≤） | 1.0 |
| 水不溶物（%，≤） | 0.1 |
| 加藥量（COD含量：COD去除劑JCA用量） | 1：10 |
【使用方法】
使用時(shí)可將本產(chǎn)品直接投加，或先配成濃度為10～20％的溶液（配藥時(shí)先加水再加藥劑攪拌），用泵投加到反應(yīng)池。
本產(chǎn)品適用的pH值范圍為4～12，使用量約為100～1000ppm（即0.1～1公斤/方廢水），根據(jù)廢水中難降解的可溶性COD含量（即當(dāng)前處理后排放口COD含量）不同其用量有所差異，具體用量一般通過實(shí)驗(yàn)確定。根據(jù)經(jīng)驗(yàn)值，倘若要降低100ppm的COD，該產(chǎn)品的投放量為1000ppm（即1公斤/方廢水），依次類推，呈線性關(guān)系。
實(shí)驗(yàn)時(shí)取一定量原水，調(diào)pH值至7～9，加入適量的本產(chǎn)品（如1000ppm），攪拌反應(yīng)10分鐘，加入少量的混凝劑（如200ppm PAC），再加入少量聚丙烯酰胺PAM，絮凝沉淀后，過濾，取濾液，測定COD值，確定用量。
【包裝與貯運(yùn)】
包裝：牛皮紙袋或膠袋封裝。
貯運(yùn)：輕拿輕放，避免日曬雨淋。嚴(yán)禁與酸性物質(zhì)、還原性物質(zhì)、氧化性物質(zhì)、易燃物、醇類等混合及存放。
注：加藥量單位換算：1000ppm=1000mg/L=1g/L=1‰=1kg/方廢水。
COD去除劑JCA
Sputter Coater濺射鍍膜儀
樣品室尺寸
Φ120mm x 65mm
Target Electrode Size
Φ55mm
靶材
Au
樣品臺(tái)直徑
Φ50mm
樣品臺(tái)內(nèi)徑
Φ35mm
靶材使用壽命
700次 ~ 1000次
設(shè)備外型尺寸
180（W）x310（D）x310（H）mm
設(shè)備重量
15kg
電源
AC220V ±10%, 50/60Hz
主體一臺(tái)
標(biāo)配金靶材1EA
50-200淄博COD穿線管生產(chǎn)廠家
山東陽谷順通建材有限公司供應(yīng)COD穿線管材，規(guī)格：50-200，質(zhì)優(yōu)價(jià)廉，服務(wù)有保障，如有需要，歡迎選購！
SIGNAL RECOVERY
the signal recovery model 5210 is the benchmark dual-phase lock-in amplifier against which others are judged. it is widely referenced in technical publications describing a diverse range of research applications including optical, electrochemical, electronic, mechanical and fundamental physical studies. we also offer a single-phase version, the model 5209.although the introduction of instruments using digital signal processing has brought advances in phase sensitive detection techniques, units using analog demodulators are still the first choice for many experiments. these include those requiring a true analog output, for example in some feedback control loops, or where the instrument is used to recover the envelope modulation of a "carrier" frequency. of course, they are also chosen for compatibility with previous experimental setups.
voltage or current inputs...the instrument includes a current preamplifier with two transimpedance settings and so can directly measure signals from current sources such as photodiodes. with an input impedance of down to typically only 25 w the resulting voltage generated across the source by the signal current is minimized for the very best performance.
continuous full-scale sensitivity control...as with all lock-ins the model 5210 has a range of calibrated full-scale sensitivity settings. however, unlike other units it also has a sensitivity vernier control, allowing the full-scale sensitivity to be set to any value between the calibrated values. suppose you are performing an optical transmission experiment and you want to measure transmission in terms of a percentage relative to that of a "reference" sample. all you need to do is put the reference sample in the optical path and press the auto vernier control on the lock-in. it will then adjust the sensitivity so that the display reads 100%. now replace the reference sample with the test sample and read the percentage transmission directly.
unique walsh function demodulators...the simplest method of implementing the phase sensitive detector at the heart of an analog lock-in is with a reversing switch driven at the reference frequency, giving excellent linearity, dynamic range and stability. this is known as a "squarewave" demodulator since the instrument responds to signals not only at the reference frequency but also at its odd harmonics. it offers much better performance than can be achieved by using a true analog multiplier, which requires the synthesis of a very pure reference sinusoid and is very non-linear when handling large levels of interfering signal.
squarewave demodulation is ideal for many applications, such as experiments using chopped light beams where the signal being detected is a square-wave, since the odd harmonics contain useful information. however in other cases the requirement is for "sinewave" or "fundamental" response where only signals at the reference frequency are measured.
in theory, a squarewave can be modified to a sinewave response by in-serting a low-pass or bandpass filter in the signal channel ahead of the demodulator. however this requires a highly se-lective filter in order to reject signals at the third harmonic without at the same time causing significant phase and magnitude errors for signals at the reference frequency.
the model 5210 uses a modified form of switching demodulator, known as the walsh demodulator, which multiplies the applied signal by a stepped approximation to the reference sinusoidal waveform. this gives a demodulator that does not respond to signals at the third and fifth harmonics, although it does respond to higher harmonics. a fourth-order signal channel filter is therefore included to reject these harmonics, giving a overall sinewave response. the advantages of the switching demodulator are thereby retained without the phase and magnitude errors associated with the use of highly se-lective filters.
the instrument can be switched to operate in either sinewave or squarewave mode, giving you the choice of the optimum detection method for your experiment. only signal recovery gives you this flexibility.
choice of signal channel filter modes…in the usual sinewave response mode, the filter is set to the bandpass or low-pass modes. but what if you are trying to measure a signal at twice the reference frequency in the presence of a strong signal at the reference frequency? in this case, the filter can be set to a notch (band-stop) mode and tuned to the reference frequency, leaving the signal at 2f unattenuated and easy to measure.
in addition to the main signal channel filter, a line-frequency rejection filter operating at 50/60 hz and/or 100/120 hz is also included, for elimination of troublesome line pickup.
high dynamic reserve...the combination of the walsh demodulator(s) and the signal channel filter gives the instruments a dynamic reserve of up to 130 db - implying that you can, for example, measure a signal of 1 礦 in the presence of an interfering signal of more than 1 v. no other analog lock-ins deliver this performance.
output filters...the output low-pass filters offer time constants in the range 1 ms to 3 ks, with all settings available at slopes of both 6 and 12 db/octave. in addition, the units include a rear-panel output giving the signal at the output of the in-phase (x-channel) demodulator with a time constant of typically only 100 祍, for use in those applications such as tandem demodulation where the largest output bandwidth is required.
synchronous adc trigger...the analog outputs from the demodulators, after filtering by the output low-pass filters, need to be digitized by an analog to digital converter (adc) for display or for transfer to the controlling computer. if this conversion is carried out asynchronously then the resulting values can display significant jitter. this is because the demodulator output contains not only the required dc level, but also signals at twice the reference frequency. when the output is sampled for conversion, this 2f signal means that some samples will be smaller and some larger than the mean.
of course, the 2f component can be reduced to any arbitrarily small value by increasing the time constant, but this reduces the response time to changes in input signal, slowing down data throughput. the model 5210 therefore offers a unique reference synchronous adc trigger mode, which guarantees that the output is sampled at the same point relative to the reference waveform and thereby removes this source of error.
internal oscillator...with the model 5210 there is no need to buy a separate oscillator to use as an excitation source for your experiment, since it includes one capable of generating a low distortion sinewave output signal over a frequency range of 0.5 hz to 120 khz. although in most lock-ins the frequency of the internal oscillator can be adjusted, in this instrument the amplitude can also be controlled over the range 1 mv to 2 v rms.
manual or computer control...in manual operation the backlit control setting indicators, the two digital displays and the analog panel meter makes the instrument very easy to use, with the settings of all the important controls being instantly visible. six auto functions further simplify control adjustment, while red overload and reference unlock leds warn of conditions which will result in measurement errors. all the front panel indicators can be turned off for use in blackout conditions.
the instrument includes gpib (ieee-488) and rs232 computer interfaces, allowing virtually all the controls to be operated, and all the outputs that can be displayed to be read, via simple ascii mnemonic-type commands. the communications interface parameters, such as baud rate and gpib address are set by front-panel controls, with no difficult dip switches to adjust.
compatible labview drivers are available for those researchers working in that environment while the unit is also supported by the srinstcomms activex control and sdk. it can also be used with our acquire? lock-in amplifier applications software package, which allows non-programmers an easy way to log the instrument outputs to a pc file. the labview driver and a demonstration version of the software, demoacquire, are available for download from this site.
HCA-200 COD（Cr)在線監(jiān)測儀
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產(chǎn)品簡介