Nova Analytical Systems
Canada
270 Sherman Avenue N.
Hamilton, ON L8L 6N5
Phone: (905) 545 2003• Fax: (905) 545 4248
Email: sales@nova-gas.com or websales@nova-gas.com United States
1925 Pine Avenue
Niagara Falls, NY 14301
Phone: (716) 285-0418 • Fax: (716) 282-2937
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For continuous analysis of Hydrogen (H2) purity and for purge monitoring of Hydrogen-cooled generators and synchronous converters.  (Tri-gas analyzer H2 / CO2 / AIR)
Application power
Unit of Measure
Items Application power
Model 436N7MC
Model 436N7MC, Tri-Gas Analyzer for Hydrogen Cooled Power Generators, Gas Detector and Controls in Explosion-proof Cabinet 		Application power
Model 436N4N7
Model 436N4N7, Tri-Gas Analyzer for Hydrogen Cooled Power Generators, Gas Detector in Explosion-proof Cabinet; Control Section in General Purpose NEMA 4 Cabinet 		Application power
Model 436RMN7
Model 436RMN7, Tri-Gas Analyzer for Hydrogen Cooled Power Generators, Gas Detector in Explosion-proof Cabinet; Control Section in General Purpose Rack Mount Cabinet
Method of Detection N/A Temperature controlled thermal conductivity (T/C) cell, cannot be burned out due to loss of flow or changing gases
Ranges Available N/A Range 1 : 0-100% H2 in Air Range 2 : 0-100% H2 in CO2 Range 3 : 0-100% Air in CO2
Accuracy & Repeatability N/A ±1% F.S except in 85-100% H2 in Air range which is within 0.2% absolute H2
Drift N/A 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) N/A 10-15 seconds to 90% step change - not including sample transport time
Ambient Temperature Range N/A 0 to 49 ºC32 to 122 ºF
Linearity N/A ±0.4% of F.S. on H2 in Air range, ±1% of F.S. in H2 or Air in CO2 ranges
Size & Weight N/A 436N7MC - EX-PROOF: 33H x 33W x 31H cm (13"H x 13"W x 12"D) N/A Control: NEMA 4: 51H x 41W x 26D cm (20"H x 16"W x 10"D) Detector: EX-PROOF: 33H x 33W x 31H cm (13"H x 13"W x 12"D) N/A Control RACK MOUNT: 22H x 48W x 47D cm (8.7"H x 19"W x 16"D) Detector EX-PROOF: 33H x 33W x 31H cm (13"H x 13"W x 12"D)
Alarms N/A H2 purity alarm & relay contact N/A H2 purity alarm N/A H2 purity alarm
Options N/A Isolated 4-20mA output for any range selected Oil vapor filter assembly (recommended) N/A Isolated 4-20mA output for any range selected Oil vapor filter assembly (recommended) N/A Isolated analog , RS232, RS485, MODBUS and Ethernet output available options.
Analyzer Type N/A Tri-Gas Analyzer
Hazardous Area Rating Options N/A Class 1, Div 1, Grp A-D Hazardous Area Rating N/A Control Cabinet - General Purpose, Non-Hazardous Detector Cabinet - NEMA7 Class 1 Division 1 Groups BCD N/A Control Cabinet - General Purpose, Non-Hazardous Detector Cabinet - NEMA7 Class 1 Division 1 Groups BCD