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Flush Membrane Submersible Level Transmitter for Wastewater with Ceramic Sensor HPM418

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Overview

HPM418 level transmitter features a fully sealed submersible design and utilizes a corrosion-resistant, wear-resistant, and high-precision ceramic capacitive pressure sensor. The probe, immersed in the measured medium, is made of 316L stainless steel or titanium alloy, and the gas-conducting cable is made of fluoroplastic or polyurethane. It is primarily used for measuring liquid levels in wastewater, seawater, and other demanding applications.          

The product's casing employs a fully welded process, and multiple layers of design ensure reliable sealing at all connections, including the casing and wiring. Internal potting further guarantees a long service life. It is widely used in chemical, water treatment, environmental protection, pharmaceutical, and industrial process control applications.    

Application

  • Urban sewage and industrial wastewater

  • Viscous media

  • Chemical industry

  • Water treatment industry

  • Environmental Protection Industry

  • Industrial process contro

Features

  • High-purity ceramic (99.9% Al2O3) capacitive sensor

  • 22mm diameter, suitable for 1-inch tube installation

  • Flush membrane structure, anti-clogging

  • Corrosion resistant, wear resistant

  • Laser welding process

  • Encapsulation process, containing polymer sieve, anti-condensation

  • Multiple protection and sealing structure design


    

Measuring range

0~0.5…200mH2O

Overload

2~40 times full scale

Measuring medium

Various liquids compatible with contact materials

Output Signal/Power Supply (1)

2-wire 4~20mADC / Vs=10~30 VDC

 Output Signal/Power Supply (2)2-wire 4~20mADC+HART / Vs=12~32 VDC
Output Signal/Power Supply (3)3-wire 0~5VDC etc. /Vs=10~30 VDC
Output Signal/Power Supply (4)4-wire Modbus-RTU/RS485 /Vs =3~8 VDC or 10~30 VDC

Load characteristics

4~20mADC 2-wire: RLU-10/0.02Ω

4~20mADC+HART 2-wire: RLU-12/0.02Ω

Voltage output, 3-wire: RL>10kΩ

Accuracy

±0.25%FS(typcial)

Long-term Stability

±0.2%FS/year

Compensation Temperature Range 

-20~80

Temperature Coefficient of Zero

±1.0%FS (within compensation temperature range)

Temperature Coefficient of Full Scale

±0.8%FS (within compensation temperature range)

Operation Temperature

-20~80

Medium Temperature

-20~80


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   +86-17551075580
    info@hjsensor.com
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