Back To Top



The MODEL 4010BR is an advanced TDL Trace Moisture Analyzer incorporating innovative patented technologies and superior designs that deliver unsurpassed performance and reliability, while keeping costs low. This TDL Analyzer is the #1 choice among engineers and measurement technicians for critical H2O measurements in natural gas streams, where accuracy and dependability are required.

The Barracuda Model 4010BR | Overview Video

Play Video

The Barracuda Model 4010BR Front Panel Interface Setup

Play Video

The Barracuda Model 4010BR Installation

Play Video

When Space Matters - How compact is this analyzer?

Play Video

What is the Eliminator Liquid Cell Block?

Play Video

Need to install in a remote location?

Play Video
MODEL 4010BR Trace Moisture Analyzer


Operational Specifications
Measurement Range
0.25 – 20.0 lbs (5.25 – 420 ppm) H2O
Ambient Operational Temperature
20°F to 120°F (–6.7°C to 49°C)
Flow Rate (Recommended)
1.0 to 2.0 SCFH (0.5 – 1.0 Lpm)
Inlet Gas Pressure
1.0 − 20.0 psig (0.07 − 1.4 bar)
Analyzer Performance Specifications
90% Response Times
<2 sec
±1% of range or ±0.25 lbs (±5.25 ppm) of H2O, whichever is greater


  • PATENTED CELL BLOCK FOR AN INCREDIBLY COMPACT LEAK-FREE DESIGN | A low volume Herriott cell has been directly mounted to our patented ELIMINATOR CELL BLOCK™. This combination provides a very compact and complete sample system approach. Precision cross-drilled intersecting gas passages eliminate the need for long lengths of tubing and leak-prone compression fittings. Additionally, we have integrated a liquid rejection membrane, bypass metering valve, flow control metering valve, and flow meter into the compact set of blocks. Sample gas travels a short 4” distance from the compression fitting prior to entering the measurement cell, resulting in the industry’s fastest and most reliable measurement.
  • PROPRIETARY TDL TECHNOLOGY | AMI’s patented Tunable Diode Laser (TDL)-based technique for moisture measurement is noninvasive, with no sensor in contact with the sample gas that can become contaminated or cause drift. This means unmatched performance for ultra-fast response times, accuracy, and reliability, with no cross interferences with other gases in the stream, including mercaptans, alcohols or heavier hydrocarbons.
  • UNMATCHED RELIABILITY – THE FIRST TIME AND EVERY TIME | AMI’s non-contact TDL technology means the factory calibration remains stable over time. Long-term reliability is further enhanced by AMI’s proprietary analysis software that provides a quick and simple adjustment to correct for any long-term laser power drifts or zero level drifts. Prior to shipment, every Analyzer undergoes an intense battery of performance tests over its entire range for pressure, temperature and linearity specifications to ensure the unit meets our strict quality control standards.
  • OPTIMIZED OPTICAL CELL | Sample gas flows through AMI’s compact multi-pass optical absorption cell, or Herriott cell. This special cell contains two plano-concave mirrors at each end of a precision-machined block with small holes in each mirror to couple incoming and outgoing light. The AMI design minimizes the volume of sample gas in the Herriott cell and eliminates any air gaps between the laser output and the detector, ensuring that only H2O within the space between the two mirrors is measured. AMI further enhances its measurement technique by utilizing wavelength modulation spectroscopy (WMS) to increase sensitivity and reduce noise. The result is a small-volume sample cell with an optimized optical absorption path length, tailored specifically for the measurement of H2O in natural gas over the 0.25 to 20 lb. range.
  • ALL THE ADVANCED FEATURES FOR ONE LOW PRICE | The MODEL 4010BR Trace moisture Analyzer comes loaded with a full suite of advanced features without the typical up charges. The standard features include: 0.25lb to 20lb. measurement range, dual independent alarm relay contacts, comprehensive alarm logic (fail safe or non-fail safe, latching or non-latching and independent alarm delays), alarm bypass, 3 levels of security settings, a large backlit LCD, isolated analog output and Modbus communication protocol. Automatic data logging provides detailed time-stamped records of moisture measurement, gas pressure, temperature, supply voltage and power brown-out history and a simple SMART REALIGNMENT feature for the signature peaks. All these features can be accessed through AMI’s powerful COMMAND CENTER software.


Interested in attending a training class?

Visit Course Listing