Inline Density Meter LB 379

The LB 379 Inline Density Meter combines the radioactive source and the detector in one unit. The compelling advantage of the LB 379 is the extremely low dose rate, actually leading to a licence-free operation in several countries.

Due to its low radiation energy, an Am-241 source is used whose energy is comparable to that of x-rays and whose half-life time is about several hundred years. The LB 379 provides a high statistical accuracy and long-term stability by the use of highly senstitive scintillation detectors with the patented drift compensation.

The system is flanged to the pipeline. It is completely made from stainless steel and is also available with Teflon lining for a wear resistant operation for products with high viscosity and high solids content.



LB 379
MaterialStainless steel 1.4571, 1.4401 or 1.4301 (for pipes with linings)
Measurement pipe  DN65, 10 bar, optional soft rubber or PTFE lining
Flange in accordance with DIN 2576 or ASA, threaded connection pipe
SC 65 in accordance with DIN 11851
Product temperature

with PTFR coating / without lining: -190 ... +260°C
(-310 ... +500°F)
with soft rubber: -30 ... +80°C (-22 ... +176°F)


Format Size
Densidad y Concentracion solidos Spanish language en PDF 2.65 MB
Density Measurement Russian language en PDF 2.51 MB
Density measurement - system overview en PDF 1.57 MB
LB 379 In line Density Measurement en PDF 2.05 MB
Project Questionnaire
Format Size
Density en PDF 104.6 KB
Density Portugiese Language en PDF 500.16 KB