Systech Illinois’ PM700 Paramagnetic Analyzer for the measurement of oxygen in medical gas analysis.
Medical Gas standard USP37 requires a specific, selective and positive identification test using a paramagnetic signal. Regular analysis of medical gas is required to ensure that the oxygen concentration is NLT 99.0% volume. Following the appropriate United States Pharmacopeia standards, in this case specifically USP37, requires an analyzer which uses a paramagnetic based technology. The paramagnetic PM700 oxygen analyzer from Systech Illinois is ideally suited for this medical gas analysis application.
The technology required for this standard has a paramagnetic sensor which utilizes the paramagnetic susceptibility of oxygen, a physical property which distinguishes oxygen from most other gases. The sensor incorporates two nitrogen-filled glass spheres mounted on a rotating suspension. This assembly is suspended in a strong magnetic field. The oxygen in the surrounding gas is attracted to the magnetic field, resulting in a force on the glass spheres. The strength of the torque acting on the suspension is proportional to the oxygen content of the surrounding gases.
Utilising the well proven magneto-dynamic (dumb bell) transducer, the PM700 offers high performance oxygen analysis. It incorporates user-friendly software to provide accurate and reliable results with a non-depleting sensor providing years of trouble free operation.
Our PM700 Paramagnetic analyzer can be used for the following applications:
European Pharmacopeia 2.5.27 Oxygen in Gases
EP monograph of Argon – IDENTIFICATION A. “Verify that the gas is not oxygen using a paramagnetic analyzer (2.5.27).”
USP 37 Medical Air (19.5% to 23.5%)
USP 37 Oxygen NLT 99.0% by volume
Aviator’s Breathing Oxygen (ABO)
Breathable Air (BA)
Liquid Oxygen (LOX) Type II Grade A
CA OSHA 1910.134 CGA Grade D – for SCBA or Airline Respirators
Systech Illinois can also offer an analytical solution in relation to the European Pharmacopeia 2.5.28 which states that moisture in gases shall be determined using an electrolytic hygrometer. The Electrolytic P2O5 Moisture Analyzer MM510 from Systech Illinois is perfectly suited for this application
The technology required for this standard includes a measuring cell which consists of a thin film of diphosphorus pentoxide between two coiled platinum wires acting as electrodes. The water vapour / moisture in the gas to be examined is absorbed by the diphosphorus pentoxide creating phosphoric acid – an electrical conductor. A continuous voltage applied across the electrodes electrolyzes the water while regenerating the diphosphorus pentoxide. The resulting electric current must be proportional to the water content. The system is self-calibrating since it obeys Faraday’s law.
Systech Illinois specialises in online, portable and laboratory gas analysis equipment. With 30 years as one of the leading experts in gas and moisture measurement, Systech Illinois' application and technology knowledge provides efficient gas analysis solutions in many industry sectors worldwide. In addition, Systech manufacture intrinsically safe units for use in hazardous areas.
Systech Illinois is a multinational company with offices and gas analysis equipment manufacturing facilities in the UK and the U.S. Systech is very proud of its well developed and well trained workforce, which enables it to offer customers a continuing high level of service, and become known globally as a leading supplier of gas analysis instrumentation.
Phone: +44 1844 216838 (EMEA)
+1 815 344 6212 (N. & S. America and Canada).
17 Thame Park Business Centre
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