The 3000MA analyzers are versatile, microprocessor based instruments specifically designed to detect oxygen in a variety of gases. They are precise, cost effective instruments capable of measuring percent oxygen in as low as the 0-1% range. Drawing on the solid performance of the highly successful 3000 Series control platform, these provide the user with a wide variety of features and options to satisfy virtually any application.
Leader in Oxygen
These can be ordered as a standard unit or as a part of a larger analytical system. With over 50 years of analytical instrument experience, Teledyne supplies sensors, custom engineered analyzers and complete monitoring systems to satisfy unique applications. From portables to on-line units, in microprocessor based or analog configurations, no other manufacturer comes close to matching Teledyne’s breadth of instrumentation.
The physical property distinguishing oxygen from other gases is its paramagnetism. The paramagnetic sensor consists of two spheres arranged in the form of a dumbbell suspended in a symmetrical, non-uniform magnetic field. When the surrounding gas contains oxygen, the dumbbell spheres rotate out of the magnetic field by the relatively strong attraction of oxygen.
A light beam focused on a mirror attached to the dumbbell reflects asymmetrically onto two photo diodes resulting in a voltage shift. The voltage difference produces a current used to drive the dumbbells back to the original position. The current flow required to maintain the null position is directly proportional to the oxygen concentration and is shown linearly in volume percent oxygen in the display. Properly maintained paramagnetic sensors last for years with little or no attention making them ideal for critical measurements in the low percent range.
The analyzers offer three dynamic, user configurable ranges plus auto-ranging and can be calibrated in any range. The instrument is linear on all three ranges, eliminating the need to recalibrate while switching between ranges. The analyzers come standard with an isolated 4-20 mADC output for oxygen concentration and range identification. Additionally, a bi-directional RS-232C serial communication interface provides for remote monitoring and control of span and zero functions. Auto-calibration capabilities also come as a standard feature in the 3000 series platform.
Linearity of analysis across three user-selectable ranges
Auto-ranging to follow process upsets
Auto-calibration electronics standard
Sample Gas Conditioning Requirements
Sample Inlet Pressure
5 to 20 psig (regulate to fixed inlet pressure)
1 to 2 SCFH
Non-condensing at ambient pressure
32° to 122°F (0° to 50°C)
Detector Wetted Parts
Acrylic Glass, Epoxy Resin, Glass, Gold, Steel, Viton