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Item # 382 Series, Portable Tri Gas Analyzer for Hydrogen Purging with separate O2 channel



For checking the purity of hydrogen (H2) in H2-cooled generators and synchronous converters, and for monitoring the safe purging of H2 during shutdown or startup. Will also measure oxygen (O2) level inside of generator, including during H2 purity operation. The Nova Model 382 Tri-Gas Analyzer with separate O2 channel is designed for monitoring the H2 purity inside a power generator and to monitor the purging procedure during a generator shutdown or startup. It can also measure oxygen content in a hydrogen atmosphere. The separate O2 sensor and display remain active regardless of which other range is selected.

The analyzer contains a temperature-compensated thermal conductivity (T/C) cell, electrochemical O2 sensor, amplifier board, digital readout, range switch, pressure regulator, gas flow control valve, pump, and a flow indicator. Recorder outputs for active T/C range and O2 channel are included.

The T/C cell does not burn the sample nor is it consumed in any way, so it has a life expectancy of over 10years usually. Electrochemical O2 sensor is also of the long-life style lasting approximately 4-5 years. Measurement results are fast and accurate. A rechargeable 'gel cell' battery provides enough power for about 8 hours of continuous operation and the analyzer can be used while it is being recharged.






 Specifications   Applications   Features   Options   

Method of Detection

Thermal-conductivity (T/C) cell for H2; Electrochemical sensor for O2

Ranges Available

Range 1: 0-100% H2 in Air; Range 2: 0-100% H2 in CO2; Range 3: 0-100% Air in CO2; Separate Range: 0-25.0 % O2

Resolution

0.1% of gas measured

Accuracy & Repeatability

Range 1: ± 1% of Full Scale; Range 2 & 3: ± 2% of F.S.; O2 Range: ± 1% of F.S.

Drift

H2 in CO2, Air in CO2, & O2 ± 2% F.S. per week maximum drift; 0-100% H2 in Air range is ± 0.4% per week maximum

Response Time (T-90)

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

Ambient Temperature Range

0 to 50 ºC
32 to 120
ºF

Linearity

± 1.0% of F.S. on H2 in Air & O2 range. ± 2% of F.S. in H2 & Air in CO2 ranges

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)

Power

AC/DC Operation. 115 VAC, 60 Hz for recharging (220 VAC, 50 Hz available)

Output Options

4-20 mA or 0-1 VDC

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.

Primary Gas to be Measured

Hydrogen (H2)

Industry Type

Power Industry


 DOWNLOADS 

382K Portable TriGas + O2 Analyzer 2014
(PDF, 1032KB)