3050 Moisture Analyzer Series

Model 3050 Moisture Analyzer Series

The 3050 Moisture Analyzer series measures trace levels of moisture in a gas through the use of a quartz-crystal oscillator sample cell. AMETEK is the leader in quartz-crystal technology, which for thirty years has offered significant advantages over other measurement techniques:

  • Most accurate trace moisture measurement technology available
  • Responds far faster to both increasing and decreasing moisture levels
  • Specific to moisture in most applications
  • Provides a much more rugged sensor

Because of these advantages, the quartz-crystal oscillator has become the industry standard for applications ranging from ultrahigh purity semiconductor gases to natural gas streams containing 30% H2S. Now, the 3050 analyzers bring the benefits of quartz-crystal technology to a broad spectrum of moisture applications.

AMEVision Display Unit

AMEVision allows users to continually monitor the measurement and diagnostic information from up to eight 3050 series moisture analyzers. AMEVision provides real-time moisture measurements, trend data, and details a variety of maintenance and troubleshooting information from the 3050. Users can communicate with AMEVision via Modbus RS485 and Ethernet LAN.

Key Benefits:

  • Compatible with 3050 models OLV, SLR, DO, and TE
  • Connect up to eight analyzers on one unit
  • Trend history
  • Automatic data capture and logging
  • Calibration history
  • Alarm history

Other Products of Interest

  • Specifications +

    See individual Specification Sheets on the Documentation tab for other Model 3050 versions.

    Technology  Quartz-crystal microbalance 
    Range Calibrated from 0.1 to 2500 ppmv.  Readout capability in ppmw, lb/mmscf, mg/Nm3 and dew point in ºC or ºF (requires process pressure as an input) 
    Reference Gas  Continuously produced using actual sample gas 
    Online Verification  Internal moisture source with NIST-traceable calibration enables on-demand verification of analyzer accuracy and responsiveness without uninstalling the analyzer 
    Accuracy ±10% of reading from 1 to 2500 ppmv with standard calibration; special calibration ranges not required 
    Reproducibility ±5.0% of reading from 1 to 2500 ppmv 
    Limits of Detection  0.1 ppmv 
    A/D Resolution 16-bit (0.0015%) 
    QCM Response Time Near real time. Computer-enhanced response, which may lead to errors is not required to obtain quick wet-up or dry-down response
    Sensitivity 0.1 ppmv or 1% of reading, whichever is greater
    Allowable Inlet Pressure 1.3 to 3.3 Bar (20 to 50 psi) gauge; up to 200 Bar (3000 psi) with optional pressure reducer; analyzer performance is independent of process pressure
    Exhaust Pressure 0 to 1 Bar (0 to 15 psi) gauge
    Sample Gas Temperature 0 to 100ºC (32º to 212ºF); analyzer performance is immune to changes in sample gas
    Gas Flow Requirements Approx.150 sccm. Approx. 1.0 slpm bypass flow for increased speed of response
    Outputs Isolated 4-to-20 mA analog signal, 12 bit (0.025%) resolution, RS232 and RS484 serial communication ports (supports Modbus RTU)
    Alarms Three contact closures; system, data valid, and concentration alarms
    Ambient Temperature Limits Analyzer: 5º to 50ºC (41º to 122ºF)
    Enclosed Analyzer with sample system: -20º to 45ºC (-4º to 113ºF)
    Voltage Power Requirements Analyzer: 24 VDC, 50W
    Analyzer with sample system:
    120 ± 10% VAC, 50/60 Hz, 150W maximum
    230 ± 10% VAC, 50/60 Hz, 150W maximum
  • Documents +

  • Certifications +

    See the approvals and certifications for other Model 3050 versions by visiting the Documentation tab. See the individual Specification Sheets.


    • UL/CSA General Safety Requirements (general purpose)
    • UL/CSA Class I, Division 2 NEMA 4X, Groups A, B, C, D, T4
    • UL/CSA Class I, Division 1, Groups B, C, D, T; IP65
    • ATEX II 2 G EEx d IIC T6 or EEx de IIC T; IP65
    • Russian GOST 1ExdIICT6X
    • Russian GOST Pattern Approval
    • Complies with all relevant European directives