Monitor liquid levels in wastewater holding tanks with a flush diaphragm sensor designed to prevent clogging from grease and particulate matter in hazardous zones.
Accurately monitoring the hydrostatic head in wastewater holding tanks requires instrumentation that can withstand the dual challenges of mechanical occlusion and aggressive chemical profiles. The LMK382 is engineered specifically for these high-solids environments where traditional recessed diaphragms often fail due to the accumulation of fats, oils, and grease or the ingress of fibrous particulates. By utilizing a flush-mounted sensing element, this series eliminates the small cavities and pipework where sludge typically collects, ensuring that the pressure-sensitive face remains in direct contact with the media for consistent signal integrity. For a site process engineer managing primary settlement or equalization tanks, this design significantly extends maintenance intervals by reducing the need for manual cleaning or sensor purging.
The material composition of the LMK382 is selected to resist the corrosive leachates and volatile organic compounds frequently found in industrial and municipal waste streams. The combination of a 316L stainless steel housing and FKM seal gaskets provides robust protection against degradation, while the FEP-coated cable offers superior dielectric strength and chemical inertness compared to standard PVC or PUR alternatives. This specialized cabling is essential when the sensor is permanently submerged in tanks containing varying concentrations of acids or alkaline cleaning agents. Furthermore, in applications such as sludge thickening or anaerobic digestion where methane and other ignitable gases are generated as natural by-products of decomposition, the integrated intrinsic safety approval allows the sensor to be deployed safely within classified hazardous zones when paired with a suitable galvanic isolator or Zener barrier.
Installation of the LMK382 is streamlined for 8-foot deep applications through its weighted submersible design and nose cone configuration, which protects the diaphragm during deployment while allowing the sensor to sit near the tank floor without drifting. The 4-20mA two-wire output provides a linear signal easily integrated into existing SCADA frameworks or local PLC logic for automated pump control and high-level alarms. This level of hardware specialization is particularly beneficial in lift stations or chemical dosing tanks where process continuity depends on the reliability of the level feedback loop under turbulent or foaming conditions. By focusing on the niche requirements of wastewater media, such as high viscosity and explosive atmosphere risks, this series provides a durable solution that surpasses the lifecycle of more generic hydrostatic probes.
LMK382 IP68 Wastewater Level Pressure Transmitter
- Hydrostatic Pressure Range: 0 to 8 ftH2O
- Output Signal: 4-20mA, ATEX IS, (2 wire)
- Seal Gasket Material: FKM
- Accuracy: 0.35% FS (standard)
- Mounting Configuration: Submersible with nose cone
- Cable Type: FEP (70degC max)
- Cable Length (feet): 30