The L-Dens 7400 Ex d is a compact, flameproof inline density sensor for continuous measurement of density, concentration and API gravity, offering high accuracy and stability for fiscal density measurement. It is used at refineries, production plants and in storage, transport and delivery of petroleum and biofuel products, measuring low-viscosity, non-corrosive fluids such as refinery intermediates and finished products, crude oil, LPG, ethanol, biodiesel and chemicals. Typical uses include online density, mass flow determination with a volumetric meter, product interface detection, blending and quality control during loading and unloading.
Key specifications
Density range: Up to 3 g/cm3
Accuracy / repeatability: 1 x 10-4 g/cm3 / 2 x 10-5 g/cm3 (in adjusted range)
Sample temperature: T4: -40 to +125°C; T5: -40 to +95°C; 2 x PT1000 integrated (0.1°C)
Pressure: Maximum 50 bar / 725 psi (subject to process connection)
Recommended flow: 100-500 l/h through the sensor
Process connection: DN50/2" inline adapter set with 12.7 mm pitot tubes: EN 1092-1 PN 16/40 or ASME B16.5 Class 150/300
Materials: Stainless steel 1.4404 / 316L wetted parts, FKM seals; approx. 4.8 kg
Electrical: 24 VDC supply; 750-2000 Hz frequency density signal; 4-20 mA temperature output
Hazardous area: ATEX and IECEx Ex db IIB T4/T5 Gb; CSA/UL/FM Class I Div 1 Groups C, D; IP66 / NEMA 4X
How to specify / order
Product(s) measured, density and viscosity range
Operating pressure and temperature (T4 or T5 class)
Line size and flange standard for the inline adapter set
Flow computer or receiver the frequency signal will connect to
Pricing and lead time are quoted per configuration. Send the model, application details, product, flow range, and pressure/temperature to Flow Measurement Services for a quote. Specifications summarized from Guidant Measurement literature (L-Dens 7400 Density Sensor Specifications); confirm current data with the factory before ordering.
Smith Meter (formerly FMC Technologies / TechnipFMC Measurement Solutions), now manufactured by Guidant. Flow Measurement Services supplies and services Smith Meter equipment.