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Item # 436 Series, Tri-Gas Analyzer to Monitor Purity and Purging of Hydrogen Cooled Power Generator


The Nova Model 436 Series Tri-gas analyzer is designed specifically for monitoring H2 purity in the H2 feed to a power generator and to monitor the purging procedure during shut down. The analyzer can measure the following gases by switch selection :
Range 1: 0-100.0% H2 in Air
Range 2 : 0-100.0% H2 in CO2
Range 3 : 0-100.0% Air in CO2
A 4-20 mA output is provided for the range of 85-100% H2 in air, along with two gas alarms and a sensor fail alarm.




 Specifications   Applications   Features   Options   Calibration   

Method of Detection
Temperature controlled thermal conductivity (T/C) cell, cannot be burned out due to loss of flow or changing gases

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
±1% F.S except in 85-100% H2 in Air range which is within 0.2% absolute H2

Drift
H2 in CO2 or Air in CO2 1% F.S. per week maximum drift, 0-100% H2 in Air range is ±0.2% per week

Response Time (T-90)
10-15 seconds to 90% step change - not including sample transport time

Ambient Temperature Range
0 to 49 ºC
32 to 122 ºF

Linearity
±0.4% of F.S. on H2 in Air range, ±1% of F.S. in H2 or Air in CO2 ranges

Size & Weight
Dimensions will vary depending on enclosure style and options required

Power
115 VAC, 60 Hz
220 VAC, 50 Hz

Output Options
4-20 mA into 500 ohms non-isolated standard
Isolated 4-20 mA, RS232, RS485, MODBUS, Ethernet outputs

Alarms
Alarm set points are field adjustable
Alarms have front panel light for each alarm and SPST (normally energized) relay with 5A rating at 250VAC non-inductive load
Dual alarms are provided for low H2 purity. Detector fail alarm also provided as standard

Primary Gas to be Measured
Carbon Dioxide (CO2)
Hydrogen (H2)

Industry Type
Power Industry

Mounting Options
Panel Mount
Rack Mount

Models and Enclosure Options
NEMA 4


 DOWNLOADS 

436 Tri-Gas Analyzer for Power Industry20
(PDF, 536KB)