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DS1511

更新时间： 2024-11-13 14:53:47

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TTELEC		/
页数	文件大小	规格书
2页	457K
描述
MN Automatic Flow Controller

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中文翻译

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数据手册

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DS1511 数据手册

Platon Automatic Flow

Controller

DS1511

Features



Automaꢀc

No power required

Adjustable over wide range

High accuracy

Fast response

Gases or liquids

Suitable for use on ﬂammable liquids

PLATON FLOSTAT TYPE MN

FLOSTATS from Roxspur Measurement & Control are automaꢀc ﬂow control devices for liquids or gases. Once adjusted to the required

value, ﬂow is maintained accurately at this rate independent of pressure ﬂuctuaꢀons in the supply or varying backpressures down-

stream of the meter. No electrical power or external ﬂow measurement input is required – the Flostat control system uses the line pres-

sure available.

FLOSTATS are ideal for blending or dosing applicaꢀons to maintain the required delivery of valuable gases or liquids, despite process line

-pressure changes. Similarly, FLOSTATS are ideal for use on gas sampling, purging or inert gas blankeꢀng systems to maintain ﬂow rate

independent of back pressure. Bubbler type liquid level measurement systems beneﬁt from improved accuracy and lower gas usage

when ﬁꢁed with a FLOSTAT. To assist in seꢂng the correct ﬂow rate, the Flostat type MN is frequently installed in line with a Platon

type GU, NGI, LGI, NGIX, or LGIX variable area ﬂowmeter.

PRINCIPLE OF OPERATION

The control valve varies the size of the oriﬁce A. Flow through this oriﬁce produces a pressure diﬀerence. P1- P2 which acts across the

diaphragm B.This is opposed by the force from the spring C. The diaphragm modulates the ﬂow from the Flostat discharge port, main-

taining the internal pressure drop P1-P2 constant and equal to the spring force. This produces a constant ﬂowrate, determined by the

oriﬁce size set by the valve.

For liquids, the Flostat (Type MNA) will maintain a constant ﬂowrate irrespecꢀve of any pressure changes whether up or downstream.

For gases, the Flostat can compensate for pressure variaꢀons only on one side of the unit, because gas compressibility aﬀects the oriﬁce

calibraꢀon. Type MNA units give a constant ﬂow when the supply pressure is relaꢀvely constant - these units compensate for variaꢀons

in discharge or downstream back pressure. Type MNB units are used to maintain constant ﬂow when the supply pressure is varying, but

where discharge pressure is relaꢀvely constant (eg discharge to atmosphere).

General Note

TT Electronics | Roxspur Measurement & Control Ltd

2 Downgate Drive, Sheﬃeld, S4 8BT, England |Ph: +44(0)114 244 2521

TT Electronics reserves the right to make changes in product speciﬁcaꢀon without

noꢀce or liability. All informaꢀon is subject to TT Electronics’ own data and is

www.roxspur.com | sales@roxspur.com

considered accurate at ꢀme of going to print.

Issue B 7/2017 Page 1

中文翻译

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与DS1511相关器件

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DS1511W	MAXIM	获取价格	Real Time Clock, Non-Volatile, 1 Timer(s), CMOS, PDIP28, 0.720 INCH, EDIP-28
DS1511W	DALLAS	获取价格	Y2K-Compliant Watchdog Real-Time Clocks
DS1511W+	MAXIM	获取价格	Y2K-Compliant Watchdog Real-Time Clocks
DS1511W-IND	MAXIM	获取价格	Real Time Clock, 1 Timer(s), CMOS, PDIP28, 0.720 INCH, EDIP-28
DS1511Y	DALLAS	获取价格	Y2K-Compliant Watchdog Real-Time Clocks
DS1511Y	MAXIM	获取价格	Real Time Clock, Non-Volatile, 1 Timer(s), CMOS, PDIP28, 0.720 INCH, EDIP-28
DS1511Y+	MAXIM	获取价格	Y2K-Compliant Watchdog Real-Time Clocks
DS1511Y-5VIND	MAXIM	获取价格	Real Time Clock, 1 Timer(s), CMOS, PDIP28, 0.720 INCH, EDIP-28
DS1521	TTELEC	获取价格	FV Automatic Flow Controller
DS1531	TTELEC	获取价格	Platon B & LB Automatic Flow Controller

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