3051L*8443543
3051L marked with serial number 8443543 is Emerson Rosemount flange-mounted remote seal hydrostatic level transmitter. Equipped with flanged remote diaphragm and liquid-filled capillary instead of conventional coplanar manifold structure, it is designed to measure liquid level based on liquid column hydrostatic pressure principle. The model fits application scenarios with corrosive, high-viscosity or easily crystallized medium where impulse tube installation is impractical, widely used in petrochemical, thermal power and pharmaceutical industries for continuous level monitoring of open and pressurized storage tanks.
Description
1. Product Overview
3051L marked with serial number 8443543 is Emerson Rosemount flange-mounted remote seal hydrostatic level transmitter. Equipped with flanged remote diaphragm and liquid-filled capillary instead of conventional coplanar manifold structure, it is designed to measure liquid level based on liquid column hydrostatic pressure principle. The model fits application scenarios with corrosive, high-viscosity or easily crystallized medium where impulse tube installation is impractical, widely used in petrochemical, thermal power and pharmaceutical industries for continuous level monitoring of open and pressurized storage tanks.
High-precision capacitive sensor converts medium hydrostatic pressure into standard electrical signal with digital communication function. Remote diaphragm and capillary isolate internal sensing core from harsh process fluid to prevent clogging and medium corrosion. Built-in intelligent diagnostic system keeps monitoring capillary leakage, diaphragm abnormal deformation and circuit loop faults to reduce unplanned maintenance and unexpected equipment shutdown. Every unit completes factory calibration and sealing tightness test for direct field startup after installation.
2. Core Technical Parameters
Measurement Performance
Reference accuracy reaches up to ±0.04% full calibrated span; overall installed working performance is controlled within ±0.15% full scale. Maximum adjustable turndown ratio is 150:1 for flexible on-site range modification without replacing hardware. Five-year long-term stability remains within ±0.125% of calibrated span under continuous running condition.
Electrical and Communication
Standard output is 4–20mA analog signal superimposed with HART7 digital communication, supporting remote parameter setup via handheld communicator or DeltaV DCS system. Optional communication protocols include FOUNDATION Fieldbus H1, PROFIBUS PA and WirelessHART following order requirements. Conventional loop-powered HART transmitter runs on supply voltage between 10.5VDC and 42.4VDC.
Construction Materials
Default wetted flange and remote diaphragm adopt 316L stainless steel; optional corrosion-resistant alternatives such as Hastelloy C-276, Monel alloy and tantalum are available for strong corrosive medium. Transmitter housing is die-cast aluminum with anti-corrosion epoxy coating, and multiple types of capillary filling fluid can be chosen to match different medium temperature environments.
3. Environmental Working Range
Ambient operating and storage temperature: −40℃ ~ +85℃; applicable relative humidity 5%~95% without condensation. Allowable process medium temperature is determined by the selected filling fluid type.
4. Functions and Certifications
Optional backlit local LCD supports on-site real-time level reading as well as zero and span trimming. Body push buttons enable field calibration without extra auxiliary tools. Advanced onboard diagnostics cover diaphragm damage detection, capillary leakage alert and signal loop abnormality monitoring.
The transmitter has SIL2/SIL3 certification compliant with IEC61508, together with ATEX and FM explosion-proof certificates for hazardous area installation, covered under Emerson five-year limited factory warranty.
5. Typical Application
Level measurement of high-viscosity oil tanks, corrosive chemical storage vessels, high-temperature reactor tanks and circulating water & waste water buffer tanks in power stations.
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