US 2015/0316571 A1 · FLUID SAMPLE SYSTEM AND METHOD

Abstract

A fluid sample system includes a control system that operates in the hazardous area and controls one or more valves and optionally receives outputs from one or more transducers and optionally one or more sensors. The fluid sample system includes components that operate in a hazardous area and includes a control system that operates in the hazardous area and that controls one or more electrical devices. The control system communicates across a barrier with a system on a safe side of the barrier with as few as two intrinsically safe couplings including a single pneumatic coupling and a communication link coupling. The control system includes an intrinsically safe voltage boost circuit.

Claims25

Dependent claims

A fluid sample system, comprising:

at least one fluid flow control device and at least one sensor that detects a condition of the fluid,
a voltage boost circuit that produces electrical power for said at least said one fluid flow control device and said at least one sensor,
said voltage boost circuit comprising a current manager circuit.

Dependencies are inferred from the claim text.

Facts

Application

14/700,291Filed 30 Apr 2015

Priority

2 May 2014

Published

5 Nov 2015

Term ends

Not estimatedThe source records don’t support an estimate.

Classification12 codes

G01N 1/2226
In the gaseous state: sampling from a closed space, e.g. food package, head space
G01F 1/50
By measuring pressure or differential pressure: correcting or compensating means
G01N 30/88
Column chromatography: integrated analysis systems specially adapted therefor, not covered by a single one of the groups G01N30/04 - G01N30/86
G01N 35/1097
For supplying the samples to flow-through analysers: characterised by the valves

Fluid sample system and method

Life of this patent

Fluid sample system and method

Life of this patent

Abstract

Claims25