The Nova 380 Series Tri-Gas Analyzer is designed for monitoring H2 purity inside a power generator and to monitor the purging procedure during a generator shut down or start up.

The analyzer contains a temperature compensated thermal conductivity (T/C) cell, amplifier board, digital readout, range switch, pressure regulator, gas flow control valve, pump and a flow indictor. A 4-20mA recorder output follows the active reading.

The T/C cell does not burn the sample nor is it consumed in anymore

Unit of Measure

Specifications

Method of Detection

 Temperature compensated thermal conductivity (T/C) cell

Ranges Available

 Range 1 : 0-100% H2 in Air Range 2 : 0-100% H2 in CO2 Range 3 : 0-100% Air in CO2

Resolution

 0.1% of gas measured

Accuracy & Repeatability

 Range 1: ± 1% of Full Scale; Range 2: ± 2% of F.S.; Range 3: ± 2% of F.S.

Drift

 H2 in Air range is ± 0.4% per week H2 in CO2 or Air in CO2 2% F.S. per week maximum drift

Response Time (T-90)

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

Ambient Temperature Range

 0 to 50 ºC32 to 120 ºF

Linearity

 ±1.0% of F.S. on H2 in Air range. ±2% of F.S. in H2 or Air in CO2 ranges

Size & Weight

 9 1/2" L x 7" W x 6 1/2" H @ 12 lbs (24 x 17 x 18 cm @ 3.6 kg)

Power

 Battery operation. 115 VAC, 60 Hz for recharging (220 VAC, 50 Hz available)

Output Options

 4-20mA

Hazardous Area Rating Options

 General Purpose, Non-Hazardous

Applications

N/A

      For checking purity of hydrogen (H2) in H2-cooled generators and synchronous converters. The Model 380 Series will also monitor the safe purging of H2 during shut down.

Features

N/A

  • Rugged design that is easy to operate
  • Fast warm up and response
  • Monitors 0-100% H2 in air, 0-100% H2 in CO2, 0-100% Air in CO2
  • Rugged long life thermal conductivity cell
  • Digital readout meter
  • Rechargeable battery operation
  • Modular layout that is easy to maintain
  • Built in flow meter, flow control valve and pump
  • Built in pressure regulator prevents over pressuring of pump and sensor
  • Suitcase style cabinet (K) is weatherproof when closed
  • Sample pressure ranges 0.5 PSI to 125 PSI

Options

N/A

  • Recorder output - 4-20mA
  • Suitcase (K) style cabinet available

Calibration

N/A

  • Range 1 : Air for Zero, 100% H2 for Span
  • Range 2 : 100% CO2 for Zero, 100% H2 for Span
  • Range 3 : 100% CO2 for Zero, Air for Span.

Unique Applications

N/A

    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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