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VKM的KOBOLD型和開關(guān)型號有彈簧加載的屁股，其在圓柱形測量中滑動管，并有一個被認(rèn)為是一個積分*的。

這個和其他設(shè)計(jì)功能意味著它已經(jīng)早上了一個風(fēng)扇和開關(guān)其補(bǔ)償粘度和很大程度即使是非常低的母雞。這些的屁股獲得的裝置包含一個致動的*磁鐵一個潛在的免費(fèi)雙穩(wěn)態(tài)彈簧接觸安裝在外面而且確保了她之間的分離介質(zhì)和電氣接觸系統(tǒng)嵌入高度可調(diào)的塑料外殼防止觸點(diǎn)受到機(jī)械作用或損壞侵略性氣氛。

當(dāng)介質(zhì)進(jìn)入儀器時，奶油會上升。一旦它磁場到達(dá)彈簧開關(guān)的接點(diǎn)關(guān)閉。隨著肥胖的增加，奶油進(jìn)一步上升直到它停止。這是要去的屁股超出磁性操作管的接觸范圍，也就是說，保持關(guān)閉，從而確保雙穩(wěn)態(tài)切換。

The KOBOLD fowmeters and switches model VKM have a 
spring-loaded foat, which slides within a cylindrical measuring
tube and has an integral orifce which is believed to be 
unique.
This and other design features means that it has for the frst 
time become possible to create a fowmeter and switch 
which fully compensates for viscosity and to a large extent
for density even with very low fows. The foat of these 
patented devices contains a permanent magnet which actuates
a potential free bistable reed contact mounted outside 
the fow thus ensuring her-metic separation between the 
medium and the electrical contact system. The contact is 
embedded within a height-adjustable plastic housing to 
prevent damage to the contacts by mechanical action or 
aggressive atmospheres.
As the medium enters the instrument the foat rises. Once its
magnetic feld reaches the contact tips of the reed switch the 
contact closes. As the fow increases the foat rises further 
until it reaches its stop. This prevents the foat from going 
beyond the contact range of the magnetic operating tube, 
that is, the contact remains closed thus ensuring bistable 
switching.

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