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MOA Instrumentation, Inc.
Optical Emission Spectrometry
for Metals and Fuel Analysis

MOA II Plus
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MOA II Plus

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Multielement oil analyzer

MOA II Plus was designed specifically for elemental analysis of lubricating oils, transmission fluids, fuels, hydraulic fluids, and greases for wear metals, contaminants, additives, and corrosive impurities.

An atomic emission spectrometer employing the rotating disk electrode (RDE) technique, the MOA II Plus is the ideal primary analytical tool for machine condition monitoring programs based on oil analysis. It was designed to measure trace quantities of elements, that are either in solution or suspended as fine particles.

By providing a complete analysis in 30 seconds, and with a low cost of ownership, the MOA II Plus is perfect to enable operations - with limited space and resources - to do their own oil analysis. This eliminates the time, expense and unpredictable delays associated with sending samples to remote or centralized labs.



General specifications

Computer:  Desktop PC 
O/S: Microsoft® Windows® 8.1
Software:  MOA (64-bit Windows®)
Printer:  300 dpi B&W laser
Voltage: 110/240 VAC (50/60 Hz)
Power: 1.25 kW
Environment: 10-43°C (0-95% R.H.)
Dimensions: 94 x 67 x 26 cm (LHD)
Weight: 90 kg

Spectrometer specifications

Polychromator type:  Paschen-Runge 
Focal length: 0.6 m
Grating:  Original holographic
Wavelength:  200 – 800 nm
Dispersion (typical): 0.69 nm/mm
Resolution (typical): 0.035 nm (1st order), 0.017 nm (2nd order) 
Aperture: f/12
Channels: 30 maximum
Profile: Automatic
Background correction: Automatic
Source type: AC pulsed arc
Gas: Not required
Control: Fiber optic

MIL-SPEC performance

The MOA II Plus, designed and manufactured in the United States of America, meets the rigid performance and environmental requirements of U.S. Department of Defense (DOD) military specification MIL-S-83129A. It also fully complies with T.O. 33-1-37-3, TM 38-301-3 and NAVAIR 17-15-50.3 monitoring programs.

Rugged, easy-to-use, stable and accurate under severe environmental conditions, its features reflect the experience gained from our scientists' and engineers' decades of involvement with this technology and marketplace.

Composed of three distinct modules mounted on a single frame, this compact design incorporates temperature compensating construction and comprehensive shock mounting. In addition, the polychromator features pre-aligned exit slit locations for all elements-of-interest so as to facilitate field upgrades as analytical requirements change.

Installation

The instrument can be quickly and easily installed almost anywhere. Just uncrate it and plug it in. An operator can be trained to use the MOA II Plus within a day. The operator simply installs the electrodes, loads a small amount of the sample to be analyzed (approximately 2 ml), and clicks a button. Results are automatically displayed and printed. No special sample preparation or dilution is required. MOA 64-bit Windows® software requires a minimum of training, providing simple and clear menus to guide the operator through normal operation. Other features include: automatic calibration and standardization, multi-point background correction, extensive graphics capabilities, unlimited calibration curve storage, statistical analysis, and data export to virtually any database program.

Typical applications:

  • Lubricating oils
  • Transmission fluids
  • Greases
  • Hydraulic fluids
  • Diesel fuel
  • Kerosine and jet fules
  • Other fuels