NORTHDOME® - Gas density meter, molar mass analyzer0 pages

PERFORMANCES
Gas density & molar mass sensor
for industrial applications, quality control, and OEM integration
The NorthDome® is a breakthrough gas density meter, molar mass analyzer
with integrated temperature and pressure compensation for both off-line &
on-line applications.
The next generation of gas analyzers
The NORTHDOME® is a smart, rugged and compact analyzer dedicated to gas density, specific gravity & molar mass measurements.
Either implemented onto process lines (ATEX) or used as a laboratory
instrument for quality control, the NORTHDOME® has proven high
metrological performances together with an unrivaled endurance to
process conditions.
Plug & play, continuous measurements
The standard version of the NORTHDOME® provides continuous raw
density measurements (at process conditions). The fully featured
version of the NORTHDOME® includes a SPHERE® sensor for pressure
& temperature compensation. An algorithm is then responsible for
combining raw density, pressure & temperature outputs to provide
normalized gas density, and/or gas molar mass acquisitions.
The NORTHDOME® is ATEX certified (zone 0) thanks to its ultralow
power consumption electronics. The device features an integrated
temperature probe positioned within the fluid, close to the sensing
element. The NORTHDOME® is best suitable for the surveillance of
refined, natural, and industrial gasses. Plug & play, it is easily deployed onto pipelines, process plants (mainline, bypass), gas mixers,
laboratory units, and can be integrated as an OEM.
Version 2_120426
Demanding applications
1. The density era can be divided into smaller ranges for improved performances
2. Indicated performances have been obtained in controlled laboratory conditions using sensor's digital output. In practice, additional inaccuracy might arise
due to application's conditions, use of the analog mode, fluid characteristics...
Calibrated ranges1 Density:
Molar mass:
Temperature:
30 g.m-3 ... 8000 g.m-3
2 g.mol-1 ... 50 g.mol-1
-25°C ... 90°C
Accuracy2 Density:
(typical, max)
Molar mass:
Temperature:
typ: 2,5 g.m-3 + 0.08 %reading
max: 5 g.m-3 + 0.2 %reading
0.8 %F.S. (typ)
2 %F.S. (max)
0.2 °C
0.5 °C
Repeatability2 Density:
Molar mass:
Temperature:
0.01 %F.S.
0.1 %F.S.
0.2 °C
SPECIFICATIONS
Calibrated outputs Density (g.m-3), Molar mass (g.mol-1),
Temperature (°C)
As an option, Sphere® sensor: pressure (Pa)
Operating ranges Temperature: -40°C ... 95 °C
Pressure
Atm ... 8 bar (can operate up to 40 bar)
Communication Analog 4 - 20mA, USB, RS232, ModBus TCP
Mechanical integration By-pass: I/O 1/8" NPT, NeSSI
(other on demand) On-line: screwed on piping: G 1/2"
Flow < 1m.s-1
Acquisition frequency 1 Hz
Response time < 1 s
Sealing Viton ©, Kalrez © (option)
Wetted parts Stainless steel 316L, Inconel, Hastelloy (option)
Weight 460 g
Dimensions 160mm x 40mm x 40mm (with Sphere® sensor)
Dimensions can be modified for OEM applications
Certifications CE, ATEX - II 1G Ex ia IIC T4
Main applications Monitoring of gas mixes
Specific gravity, calorific value of refined gasses
Sulfur content, gas purification, pipelines
AVENISENSE S.A.S. - Savoie Technolac - 17 Allée du Lac Léman BP 233
73374 Le Bourget du Lac Cedex France - Tel / fax : +33 (0)4 5708 0225
mailto: sales@avenisense.com - www.avenisense.com
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