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Water Pressure Sensor LFT221

The LFT221 water pressure transmitter is a cost-effective civilian product, mainly using for water treatment industry, with the characteristics of small size, lightweight, compact structure, and good stability.  LFT221 water pressure transducer make use of plastic shell structure and backpressure diffused silicon core,  adopts digital adjustment and compensation technology to output standard voltage signals. It is suitable for monitoring pressure in water purification pipeline, building water supply, water treatment, hydraulic and other water industries.

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Specification of Water Pressure Sensor LFT221

Measurement Range0~1MPa
Overload Pressure2.0 Times of full scales
Burst Pressure3.0 Times of full scales
Pressure FormGauge Pressure
Accuracy±2.0%F.S
Output ModeVoltage type (Three-wired)
Power Supply5±0.25Vdc
Output Signal0.5~4.5V
Working Temperature1℃~50℃
Storage Temperature﹣20℃~85℃
Medium CompatibilityAll corrosive medium compatible with PA66 and ceramic.
Insulation>100MΩ@500Vdc
Electrical ConnectorSM2.54-3P
Protection GradeIP65
Pressure Connection1/4” PE pipe quick plug / quick connect joint
Response Time10ms

 Connections

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How to Select

Code and description

Notes

T221

Water Pressure Sensor

Model


A

2 points PE pipe quick plug / quick connect joint

Pressure ports


B

2 points PE pipe quick plug / quick connect joint


SM14

SM2.54-3P; cable length 140mm

Electrical connection


XHB

XHB-3Y space 2.5cable length 350mm


XX

customize

T221        

 B

 SM14

Model selection example


Output characteristics (power supply 5V)

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Standard output0.54.5V

Vtyp: 4*P + 0.5(V)

Vtyp: Typical output voltage

Ppressureunit: MPa

Comprehensive accuracy±2%FSNote1

Voltage overload characteristics (power supply 6V)note2

Pressure/MPa

0

0.1

0.2

0.3

0.4

0.5

Output range/ V

0.5040.696

0.9841.176

1.4641.656

1.9442.136

2.4242.616

2.9043.096

Pressure/MPa

0.6

0.7

0.8

0.9

1.0


Output range/ V

3.3843.576

3.8644.056

4.3444.536

4.8245.016

5.0345.496


 

Notes:

 

1. The standard tolerance of 2% is equal to (maximum output-minimum output) *2/100 (V)

Example: The output range is 0.54.5V, and the standard deviation is (4.5-0.5)*2/100 = 0.08V

When the pressure is 0.5MPa, Vout=2.5±0.08(V), that is, when the output is between 2.42~2.58V,

results are reasonable values.

 

2. The output value and tolerance changes proportionally along with the supply voltage.


 


Description of Water Pressure Sensor LFT221

  • Digital adjustment compensation

  • High overload, stable structure

  • Small size, quick assembly

Application of Water Pressure Transducer

Water treatment industies

Industrial waste water processing

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