Portable Tri-Gas Analyzer for H2 / N2 / Air Purging
Portable Tri-Gas Analyzer for H2 / N2 / Air Purging
SKU:MUL-d4f357
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$49.99
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Portable Tri-Gas Analyzer for H2 / N2 / Air Purging
$49.99
Quantity: 1
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Portable Tri-Gas Analyzer for H2 / N2 / Air Purging
$49.99
Quantity: 1
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For checking purity of hydrogen (H2) in H2-cooled generators and synchronous converters. The Model 381 Series will also monitor the safe purging of H2 during shutdown or startup. This model is designed specifically for generators that are purged with nitrogen (N2) instead of carbon dioxide (CO2).The Nova 381 Series Tri-Gas Analyzer is designed for monitoring the H2 purity inside a power generator and to monitor the purging procedure during a generator shutdown or startup. This analyzer is specifically for generators that are purged with N2 instead of the more commonly-used CO2. The analyzer contains a temperature compensated thermal conductivity (T/C) cell, electochemical O2 sensor, amplifier board, digital readout, range switch, pressure regulator, gas flow control valve, pump and a flow indicator. A 4-20mA recorder output is standard.The T/C cell does not burn the sample nor is it consumed in any way, so it has a life expectancy of over 10 years. The electrochemical O2 sensor typically has 3-5 year life and is easy and inexpensive to replace. Measurement results are fast and accurate. A rechargeable 'gel cell' battery provides enough power for about 4-6 hours of continuous operation and the analyzer can be used while it is being recharged.
Product Specifications
Applications 0
For checking purity of hydrogen (H2) in H2-cooled generators and synchronous converters. The Model 381 Series will also monitor the safe purging of H2 during shutdown or startup. This model is designed specifically for generators that are purged with nitrogen (N2) instead of carbon dioxide (CO2).
Features 0
Rugged design that is easy to operateFast warm up and responseMonitors 0-100% H2 in air, 0-100% H2 in CO2, 0-100% Air in CO2Rugged long life thermal conductivity cellDigital readout meter with backlightRechargeable battery operationModular layout that is easy to maintainBuilt in flow meter, flow control valve and pumpBuilt in pressure regulator prevents over pressuring of pump and sensorWeatherproof (WP) cabinet with clear lexan coverSample pressure ranges 0.5 PSI to 125 PSI
Options 0
Recorder outputs of 0-1 V or 4-20 mASuitcase (K) style cabinet available
Specifications Accuracy Repeatability
Range 1: ± 1% of Full Scale; Range 2: ± 2% of F.S.; Range 3: ± 2% of F.S.
Specifications Ambient Temperature Range
0 to 50 ºC | 32 to 120 ºF
Specifications Drift
H2 in N2 or Air in N2, ± 2% F.S. per week maximum drift, 0-100% H2 in Air range is ± 0.4% per week maximum
Specifications Industry Type
Power Industry
Specifications Linearity
± 1.0% of F.S. on H2 in Air range. ± 2% of F.S. in H2 or Air in N2 ranges
Specifications Method Of Detection
Thermal conductivity (T/C) cell, electrochemical O2 sensor
Specifications Output Options
4-20 mA or 0-1 VDC
Specifications Power
AC/DC Operation. 115 VAC, 60 Hz for recharging (220 VAC, 50 Hz available)
Specifications Primary Gas To Be Measured
Hydrogen (H2)
Specifications Ranges Available
Range 1: 0-100% H2 in Air; Range 2: 0-100% H2 in N2; Range 3: 0-100% Air in N2
Specifications Resolution
0.1% of gas measured
Specifications Response Time T 90
10-15 seconds to 90% step change - not including sample transport time
Specifications Size Weight
K Style: 9 1/2" L x 7" W x 6 1/2" H @ 12 lbs (24 x 17 x 18 cm @ 3.6 kg) | WP Style: 11 1/2" L x 8" W x 7 1/4" H @ 8 lbs (29 x 20 x 18 cm @ 3.6 kg)
Specifications Unique 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.