Submersible Level Transmitter

Pokcenser high accuracy submersible Level Sensor also called hydrostatic pressure level sensor with an enclosure of 27mm, 19mm and 16mm in diameter makes it ideal for level monitoring instruments in well, borehole and tanks applications. Constructed for years of trouble free service, it applies imported 316L stainless steel isolation diaphragm diffusion silicon pressure sensor core and 316L SS body&nose cap as robust. Precision ±0.10%, ±0.25% or ±0.50% of full scale accuracy output. Lightning and surge protection is included to stand up in harsh applications. Special cable for air-venting conduit with a maintenance-free filter preventing particulate or water droplets from entering the transmitter, ensures water tightness, and ventilation between inside and outside, so as to acquire accurate and stable measuring data.

Sales contact

Pokcenser Automation Technology Co., Ltd

Mobile: +86 181 7515 5326
Email: info@pokcenser.com
Tel: +86-731-8229 9492

PWL755 Self-contained Water Level Datalogger

Features

  • Built-in Level&Temperature sensor
  • Stainless steel SS316L or titanium alloyhousing for freshwater or saltwater
  • All 316L stainless steel robust construction for durability
  • Built-in large-capacity FLASH memory
  • High-capacity long-life lithium battery.
  • RS485Modbus RTU, download data to PC by a reader

Application:

  • Groundwater level and temperature monitoring
  • Flood control level monitoring in coastal cities
  • Reservoir and dam water level
  • Lake and surface runoff water water level monitoring
  • Unmanned hydrological monitoring stations
  • Real-time monitoring of liquid level in tanks
  • On-site liquid level monitoring of industrial control systems

Advantages

  • Self-contained: no cable lead-out, strong underwater sealing
  • High-quality and high-stability sensing elements
  • High accuracy: Level 0.05%F.S., temperature ±0.5℃
  • Low consumption: Energy-saving design, standby power consumption <5µA, acquisition power consumption 3mA
  • Multi-parameters at one time: Water depth, water temperature, water pressure, battery leftover, time…
  • Anti-surge and anti-electromagnetic interference circuit board
  • Internal intelligent linear correction and temperature compensation

The Self-contained Water Level Datalogger is a groundwater monitoring instrument powered by an internal battery. It can be used to record water depth (pressure) and temperature for a long time. The housing material is made of stainless steel or titanium alloy. The water level recorder includes water level and temperature sensors, built-in large-capacity FLASH memory and high-capacity long-life lithium battery. All functions are integrated in the instrument with a diameter of 26mm. It is suitable for water level and water temperature measurement in surface water, groundwater and marine environment.

Resources

Datasheet

File Name

Time 

Type 

Download

PWL755 Self-contained Water Level Datalogger

May 05, 2025

PDF 

Technical Parameters

Main Characteristics
Level Range 0~10mH2O…0~200mH2O
Water level accuracy ±0.05%F.S. (0~50℃)
Resolution 1mm
Pressure Type Absolute Pressure
Long stability <0.05%F.S/year
Temperature Accuracy ±0.5℃
Temperature Resolution 0.1℃
Built-in Battery Life 10 years ( Record once/60 minutes)
Storage Capacity >40000 pieces readings
Electrical Characteristics
Compensation Temperature 0~50℃
Operating Temperature -10~80℃
Power Supply External voltage: DC5~30V (Typical 24V)
Internal battery: 2.7~3.6VDC
Power Protection Reverse polarity protection and over-voltage protection, Anti surge 2KV
Communication RS485 Modbus RTU
Structure Characteristics
Measurable Medium Compatible with 316L stainless steel and Viton
Housing Material 316L stainless steel or titanium(optional)
Lifting Wire SUS304 stainless steel or 316L(optional)
Environmental Characteristics
IP Rating IP68
Weight About 300g (excluding cable)

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Main Characteristics
Level Range 0~10mH2O…0~200mH2O
Water level accuracy ±0.05%F.S. (0~50℃)
Resolution 1mm
Pressure Type Absolute Pressure
Long stability <0.05%F.S/year
Temperature Accuracy ±0.5℃
Temperature Resolution 0.1℃
Built-in Battery Life 10 years ( Record once/60 minutes)
Storage Capacity >40000 pieces readings
Electrical Characteristics
Compensation Temperature 0~50℃
Operating Temperature -10~80℃
Power Supply External voltage: DC5~30V (Typical 24V)
Internal battery: 2.7~3.6VDC
Power Protection Reverse polarity protection and over-voltage protection, Anti surge 2KV
Communication RS485 Modbus RTU
Structure Characteristics
Measurable Medium Compatible with 316L stainless steel and Viton
Housing Material 316L stainless steel or titanium(optional)
Lifting Wire SUS304 stainless steel or 316L(optional)
Environmental Characteristics
IP Rating IP68
Weight About 300g (excluding cable)
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