Description

Flowma LMP633-NSN-H Submersible Level Transmitter

Flowma LMP633-NSN-H Submersible Level Transmitter is designed for dealing with the most severe demanding level measurement conditions. It is the optimal choice to satisfy all of high demand level measuring applications.

Flowma LMP633-NSN-H (LEEG LMP633 series OEM variant) is a heavy-duty, anti-corrosive submersible hydrostatic level transmitter engineered for continuous liquid level measurement in highly aggressive chemicals, wastewater, and saline environments.

Unlike standard stainless steel pressure probes, the -NSN-H configuration utilizes a high-purity PVDF (Polyvinylidene Fluoride) or PTFE probe housing, a ceramic capacitive diaphragmatic sensor element, and a specialized chemical-resistant submersible cable to prevent material degradation.

Core Operational Functions

Hydrostatic Pressure Measurement: Operates on the principle that static liquid head pressure is directly proportional to liquid height.
Corrosive Media Sensing: The dry ceramic capacitive sensor diaphragm (99.6% $\text{Al}_2\text{O}_3$ ) contacts the liquid directly without intermediate oil filling, providing high mechanical strength and immunity to strong acids and bases.
Barometric Vented Line Compensation: The submersible cable incorporates an internal capillary vent tube to reference ambient atmospheric pressure changes, ensuring precise net level tracking regardless of weather or vessel closure.
Signal Conditioned Transmission: Integrates internal signal processing electronics to output a linear 4–20 mA current loop (2-wire system) or RS-485 Modbus RTU interface for long-distance PLC/SCADA transmission.

Specifications

Parameter	Specification
Measuring Principle	Ceramic Capacitive Hydrostatic Pressure
Measuring Range	Custom configurable from $0text{--}1text{ mH}_2text{O}$ up to $0text{--}100text{ mH}_2text{O}$
Accuracy	$pm 0.2%text{ FS}$ or $pm 0.5%text{ FS}$
Housing Material	PVDF (Polyvinylidene Fluoride) / PTFE wetted probe body
Diaphragm Material	Ceramic $99.6%text{ Al}_2text{O}_3$
Cable / Seal Material	PTFE / FKM (Viton) or EPDM chemical seals
Output Options	$4text{--}20text{ mA}$ (2-wire) or RS-485 Modbus-RTU
Power Supply	$12text{ to }30text{ V DC}$
Operating Temperature	-10°C to +70°C
Ingress Rating	IP68 fully submersible sensor head

Features

Barometric Vented Cable & Protection

Atmospheric Reference Venting: Submersible cable features an integrated capillary air tube with a protective desiccant filter to compensate for atmospheric barometric pressure fluctuations.
Rugged Chemical Cable Sheathing: Cable outer jacket is constructed from chemically inert materials (PTFE / FKM seals) to prevent swelling, hardening, or cracking during long-term chemical immersion.

Applications

Chemical Storage & Dosing Tanks: Monitoring levels of concentrated hydrochloric acid ( $text{HCl}$ ), sulfuric acid ( $text{H}_2text{SO}_4$ ), sodium hypochlorite ( $text{NaClO}$ ), and caustic soda ( $text{NaOH}$ ).
Industrial Wastewater & Leachate: Submerged level tracking in acidic industrial effluent, mining runoff pits, and landfill leachate sumps.
Seawater & Desalination Plants: Continuous level monitoring in high-salinity brine tanks and marine intake wells where metallic probes suffer galvanic corrosion.

Flowma LMP633-NSN-H Submersible Level Transmitter

Core Operational Functions

Hydrostatic Pressure Measurement: Operates on the principle that static liquid head pressure is directly proportional to liquid height.

Corrosive Media Sensing: The dry ceramic capacitive sensor diaphragm (99.6% $\text{Al}_2\text{O}_3$ ) contacts the liquid directly without intermediate oil filling, providing high mechanical strength and immunity to strong acids and bases.

Barometric Vented Line Compensation: The submersible cable incorporates an internal capillary vent tube to reference ambient atmospheric pressure changes, ensuring precise net level tracking regardless of weather or vessel closure.

Signal Conditioned Transmission: Integrates internal signal processing electronics to output a linear 4–20 mA current loop (2-wire system) or RS-485 Modbus RTU interface for long-distance PLC/SCADA transmission.

Specifications

Parameter

Specification

Measuring Principle

Ceramic Capacitive Hydrostatic Pressure

Measuring Range

Custom configurable from

0text{--}1text{ mH}_2text{O}

up to

0text{--}100text{ mH}_2text{O}

Accuracy

pm 0.2%text{ FS}

pm 0.5%text{ FS}

Housing Material

PVDF (Polyvinylidene Fluoride) / PTFE wetted probe body

Diaphragm Material

Ceramic

99.6%text{ Al}_2text{O}_3

Cable / Seal Material

PTFE / FKM (Viton) or EPDM chemical seals

Output Options

4text{--}20text{ mA}

(2-wire) or RS-485 Modbus-RTU

Power Supply

12text{ to }30text{ V DC}

Operating Temperature

-10°C to +70°C

Ingress Rating

IP68 fully submersible sensor head

Features

Barometric Vented Cable & Protection

Atmospheric Reference Venting: Submersible cable features an integrated capillary air tube with a protective desiccant filter to compensate for atmospheric barometric pressure fluctuations.

Rugged Chemical Cable Sheathing: Cable outer jacket is constructed from chemically inert materials (PTFE / FKM seals) to prevent swelling, hardening, or cracking during long-term chemical immersion.

Applications

Chemical Storage & Dosing Tanks: Monitoring levels of concentrated hydrochloric acid ( $text{HCl}$ ), sulfuric acid ( $text{H}_2text{SO}_4$ ), sodium hypochlorite ( $text{NaClO}$ ), and caustic soda ( $text{NaOH}$ ).

Industrial Wastewater & Leachate: Submerged level tracking in acidic industrial effluent, mining runoff pits, and landfill leachate sumps.

Seawater & Desalination Plants: Continuous level monitoring in high-salinity brine tanks and marine intake wells where metallic probes suffer galvanic corrosion.

Best Flowma LMP633-NSN-H Submersible Level Transmitter

Product Note:

Description

Flowma LMP633-NSN-H Submersible Level Transmitter

Core Operational Functions

Specifications

Features

Barometric Vented Cable & Protection

Applications

Related Products

Best Flowma LMP633-NSN-H Submersible Level Transmitter

Product Note:

Description

Flowma LMP633-NSN-H Submersible Level Transmitter

Core Operational Functions

Specifications

Features

Barometric Vented Cable & Protection

Applications

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