Call us: (+1) 215-547-8308 | E-mail:

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

Analytical Program Request Form


Request more information

Multielement oil analyzer

MOA III 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 III 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 III 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 or 10
Software:  MOA (64-bit Windows®)
Printer:  300 dpi B&W laser
Voltage: 110-240 VAC (47-63 Hz)
Power: 1.5 kW
Environment: 10-30°C (20-60% R.H.)
Dimensions: 89 x 81 x 65 cm (LHD)
Weight: 100 kg

Spectrometer specifications

Spectrometer:  N2 or air filled w/ multiple flat field spectrographs 
Gratings:  Aberration corrected concave type
Wavelength:  190–785 nm (std), 175-785 nm (extended UV)
Channels: Unlimited
Profile: All channels simultaneously
Background correction: Simultaneous, either or both sides
Source type: Solid state AC pulsed arc
Instrument control: Fiber optics
Gas: Not required

MIL-SPEC performance

The MOA III, 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 slits for all elements-of-interest so as to facilitate field upgrades as analytical requirements change.


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 III 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
  • Kerosene and jet fuels
  • Other fuels