Datasheet > LG01-2000A090

LG01-2000A090

更新时间： 2024-09-25 01:23:35

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描述
Liquid Flow Switch and Bubble Detector

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LG01-2000A090 数据手册

LG01-2000Axxx

Liquid Flow Switch and Bubble Detector

. Detection of low liquid flow in the ml/min Range

. Totally non-invasive

. Ultra-fast response time of 100 ms

Product Summary

The LG01 Liquid Flow Switch enables detection of

flow of liquid in the range of ml/min. The output signal

is 5V when the flow rate is higher than the specified

flow switch point and 0V below this limit or when air

or bubbles are found inside the sensor’s flow channel

instead of liquid.

Excellent chemical resistance and bio-compatibility

are ensured: The flow path of the LG01 Liquid Flow

Switch is formed by a simple, straight glass capillary.

For more information on communication, please refer

to section 2 of this document.

1 Sensing Performance

Table 1: Model specific performance of LG01 (all data for medium H₂O, 23°C)

Parameter

LG01-2000A090

LG01-2000A005

Unit

H₂O flow switching point

H₂O maximum flow rate

Accuracy^aof switching point

Switching hysteresis

4.5

0.25

220

±10

±5

ml/min

±10

±5

% of switching point

Mounting orientation sensitivity^b

Flow detection response time ₆₃

Response time on power-up

Operating temperature

Ambient storage temperature^c

Operating pressure

+14

% of switching point

°C

120

+10…+50

-10…+60

°C

bar

Proof pressure

^aBetter available on request

^bMaximum shift of switching point if mounted vertically

^cNon-condensing, flow path empty

1.1 Operation with Other Liquids than Water

Due to the measurement principle the LG01 flow switch characteristics is changing with the thermal properties of the

liquid. For aqueous solutions the data for H₂O as stated above is a good approximation.

For hydrocarbon liquids such as oil, fuel, or organic solvents, the flow switch point shifts towards higher flow rates.

For indicative purpose, data is provided for isopropyl alcohol (IPA) below.

Table 2: Approximate switch levels of the LG01 liquid flow switch with hydrocarbon liquids

Parameter

LG01-2000A090

LG01-2000A005

Unit

Approximate flow switching point with IPA

Maximum flow rate with IPA

1.4

ml/min

>250

www.sensirion.com

February 2015 V2

1/4

12 3 4

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