GENERAL MONITORS H2S氣體傳感器技術(shù)參數(shù)
Sensor Specifications | |
Type: | Metal Oxide Semiconductor (MOS) |
Response Time: | With wire screen flame arrestor:T50<14 seconds |
Temperature Range: | CSA: -40°F to +167°F(-40°C to +75°C) |
Electrical Classification: | Class I, Div. 1, Groups B, C, and D; Ex d IIC |
GENERAL MONITORS H2S氣體傳感器產(chǎn)品介紹
GM的硫化氫（H2S）傳感器是固態(tài)設(shè)備，其設(shè)計(jì)和制造具有長(zhǎng)壽命和快速響應(yīng)性。它們對(duì)H2S具有選擇性，并且不受高濃度的其他物質(zhì)（例如氫氣，二氧化硫和汽油蒸氣）的影響，這些物質(zhì)通常存在于處理酸性氣體和原油的設(shè)施中。
半導(dǎo)體器件測(cè)量由于氣體暴露而導(dǎo)致的薄金屬氧化物膜中電導(dǎo)率的變化。電導(dǎo)率的變化與目標(biāo)氣體濃度呈對(duì)數(shù)關(guān)系，并用于向控制器提供信號(hào)。薄膜的表面溫度保持在100°C以上，以減少環(huán)境溫度，濕度的影響并提高選擇性。
金屬氧化物半導(dǎo)體（MOS）傳感器是GENERAL MONITORSs智能傳感器和基于控制卡的H2S檢測(cè)系統(tǒng)產(chǎn)品線的重要組成部分。傳感器易于安裝，并且可以通過(guò)使用預(yù)先混合的H2S與干燥空氣進(jìn)行校準(zhǔn)。幾個(gè)附件通過(guò)保護(hù)它們免受水和灰塵的侵害或簡(jiǎn)化了它們?cè)诠艿篮筒蓸酉到y(tǒng)中的安裝，擴(kuò)展了這些傳感器的用途。
這些傳感器對(duì)各種溫度和濕度的高耐受性使它們能夠在惡劣的環(huán)境中運(yùn)行，以及它們?cè)诙虝r(shí)間內(nèi)承受高H2S濃度的能力。
GENERAL MONITORSs? hydrogen sulfide (H2S) sensors are solid state devices, designed and manufactured for long life and fast response. They are selective to H2S and remain unaffected by high concentrations of other substances like hydrogen, sulfur dioxide, and gasoline vapors, which are often present in facilities that process sour gas and crude oil.
A semiconductor device measures changes in electrical conductivity in a thin metal oxide film as a result of gas exposure. The change in conductivity is logarithmically correlated to the target gas concentration and used to supply a signal to the controller. The surface temperature of the film is maintained well above 100?C to reduce effects of ambient temperature, humidity and improve selectivity.
Metal oxide semiconductor (MOS) sensors are an essential component of GENERAL MONITORSs? line of intelligent sensors and control card-based H2S detection systems. The sensors are easy to install and can be conveniently calibrated by using ampoules or disposable canisters of pre-mixed H2S with dry air. Several accessories extend the usefulness of these sensors by protecting them against water and dust or facilitating their installation in ducts and sampling systems.
A high tolerance to a broad range of temperatures and humidity enable these sensors to operate in rugged environments, as does their capacity to withstand exposure to high H2S concentrations over short periods.
GENERAL MONITORS H2S氣體傳感器其他常用型號(hào)：
GENERAL MONITORS 50445-1
GENERAL MONITORS 50445-5
GENERAL MONITORS 50445-9
GENERAL MONITORS 50448-1
GENERAL MONITORS 50448-5
GENERAL MONITORS 50448-9
GENERAL MONITORS 51457-1
GENERAL MONITORS 51457-5
GENERAL MONITORS 51457-9
GENERAL MONITORS 51457-1L
GENERAL MONITORS 51457-5L
GENERAL MONITORS 51457-9L
GENERAL MONITORS gas sensor NEW + ORIGINAL+ ONE YEAR WARRANTY
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GENERAL MONITORS氣體傳感器51457-9產(chǎn)品介紹
