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The Nova 335 Portable Analyzer has been designed for the detection of hydrogen (H2) in a binary (two gas) mixture such as H2 in N2. However, it can be used in some other applications with several background gases present. Consult Nova on these applications.

The thermal conductivity (T/C) cell provides a fast and accurate measurement of H2. It has an expected life of over 10 years unless contaminated.

In operation, a built in sample pump draws in the gas sample through the sample tube, filter and flow meter and then on to the T/C cell. The detected H2 is displayed on a digital display.

A rechargeable battery provides enough power for approximately 8 hours of operation and the analyzer can be used while it is being recharged. The recharger is included.

Unit of Measure

Specifications

Method of Detection

 N/A Temperature compensated thermal conductivity (T/C) cell

Ranges Available

 N/A 0-100% H2 in a binary gas mixture

Resolution

 N/A 0.1% of H2

Accuracy & Repeatability

 N/A ±2% of full scale

Drift

 N/A ±1% of full scale max. per day (after calibration)

Response Time (T-90)

 N/A 10-15 seconds to 90% step change - not including sample transport time

Ambient Temperature Range

 N/A 12 to 50 ºC55 to 120 ºF

Linearity

 N/A ±2% of F.S.

Size & Weight

 N/A K style - approx. 35.5L x 15.2H x 26.6D cm @ 5.5 kg (14" x 6" x 10½" @ 8 lbs)

Power

 N/A 115 VAC / 60 Hz for recharging (220 VAC / 50 Hz also available)

Output Options

 N/A 4-20 mA

Hazardous Area Rating Options

 N/A General Purpose, Non-Hazardous

Applications

N/A

        For analysis of hydrogen (H
2
        ) in a binary gas mixture in process gases such as H
2 
        in air, H
2 
        in nitrogen (N
2
        ), H
2 
        in carbon dioxide (CO
2
        ), H
2 
        in argon (Ar), H
2 
        in oxygen (O
2
      ), etc.

Features

N/A

  • Rugged design that is easy to operate
  • Fast warm up and response
  • Long life thermal conductivity cell that provides accurate and stable readings
  • Digital meter readout with backlight
  • Modular layout that is easy to maintain
  • Rechargeable battery operated
  • Built in sample pump or flow regulator
  • Suitcase cabinet (K) weather-proof when closed

Options

N/A

  • Recorder outputs - 4-20mA
  • Sample pre-cooler for hot samples
  • Condensate removal for wet applications
  • Suitcase (K) style cabinet available
  • On-board data-loggin to USB stick

Calibration

N/A

  • Ambient air for zero
  • Gas cylinder of known H2 for span

Unique Applications

N/A

        The Nova T/C cell will respond in the presence of many gases and may need to be compensated either directly in the analyzer or in the calibration gas. Consult Nova on these types of applications.


      All Nova analyzers are built using proven technologies and techniques. If this product does not suit your application, please contact Nova. In many cases, we are able to build an analyzer specific to your needs.
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