| Items |
 /Asset/flexinovaN42.jpg Model 420N4 Model 420N4 Carbon Dioxide Analyzer, Wall Mounted NEMA4 (IP65) Enclosure Rating |
 /Asset/N4N7-21.jpg Model 420N4N7 Model 420N4N7 Carbon Dioxide Analyzer, ex-proof sensor housing with NEMA4 wall-mount control cabinet (two separate enclosures) |
 /Asset/N7MC-generic.jpg Model 420N7MC Model 420N7MC Carbon Dioxide Analyzer, in Explosion-proof cabinet, Class 1 Div 1 Group BCD |
 /Asset/RMN7-21.jpg Model 420RMN7 Model 420RMN7 Carbon Dioxide Analyzer, ex-proof sensor housing with rack mount control cabinet (two separate enclosures) |
 /Asset/N4-+-D1-&-D2-purge21.jpg Model 420 D1 or D2 Model 420 D1 or D2 Carbon Dioxide Analyzer, with cabinet purge systems for hazardous areas |
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| Method of Detection | Single cell NDIR with no moving parts | |||||||||
| Ranges Available | 420 - 0-1, 0-5, 0-10, 0-20, 0-30, 0-50, 0-100% CO2 420L - 0-5,000 PPM CO2 420L-LP - 0-500, 1000, 2000, 5000, 10000 PPM (may be available, check with NOVA) | 420 - 0-1, 0-5, 0-10, 0-20, 0-30, 0-50, 0-100% CO2 420L - 0-5,000 PPM CO2 | 420 - 0-1, 0-5, 0-10, 0-20, 0-30, 0-50, 0-100% CO2 420L - 0-5,000 PPM CO2 | 420 - 0-1, 0-5, 0-10, 0-20, 0-30, 0-50, 0-100% CO2 420L - 0-5,000 PPM CO2 | 420 - 0-1, 0-5, 0-10, 0-20, 0-30, 0-50, 0-100% CO2 420L - 0-5,000 PPM CO2 420L-LP - 0-500, 1000, 2000, 5000, 10000 PPM (may be available, check with NOVA) | |||||
| Accuracy & Repeatability | ±1-3% of full scale, depending on measurement range and application | |||||||||
| Drift | Usually 2% of full scale per month or less, depending on range and application | |||||||||
| Response Time (T-90) | Usually 20-30 seconds to 90% step change, depending on range and application | |||||||||
| Ambient Temperature Range | 40 to 104°F (4 to 40°C). Optional: up to 130°F (55°C) with cabinet cooler | 40 to 104°F (4 to 40°C). | 40 to 104°F (4 to 40°C). Optional: up to 130°F (55°C) with cabinet cooler | 40 to 104°F (4 to 40°C) | 40 to 104°F (4 to 40°C). Optional: up to 130°F (55°C) with cabinet cooler | |||||
| Linearity | Usually ±1.5% of full scale, depending on range and application | Usually ±1.5% of full scale, depending on range and application | Usually ±1.5% of full scale, depending on range and application | Usually ±1.5% of full scale, depending on gas measured | Usually ±1.5% of full scale, depending on gas measured | |||||
| Size & Weight | NEMA 4: 51H x 41W x 26D cm (20"H x 16"W x 10"D) RACK MOUNT: 22H x 48W x 47D cm (8.7"H x 19"W x 16"D) | EX-PROOF: 61H x 33W x 31H cm (24"H x 13"W x 12"D) NEMA 4: 51H x 41W x 26D cm (20"H x 16"W x 10"D) | EX-PROOF: 61H x 33W x 31H cm (24"H x 13"W x 12"D) | EX-PROOF: 61H x 33W x 31H cm (24"H x 13"W x 12"D) RACK MOUNT: 22H x 48W x 47D cm (8.7"H x 19"W x 16"D) | NEMA 4: 61H x 51W x 31D cm (24"H x 20"W x 12"D) (not including purge panel & vent) | |||||
| Power | 115 VAC, 60 Hz 220 VAC, 50 Hz | |||||||||
| Alarms | High and/or Low alarm contacts available, relay contacts SPDT 5A @ 220 VAC rating Low flow alarm | |||||||||
| Options | Cabinet coolers can be fitted to most models Hi/Low gas, Low Flow alarms available High temperature filters and probes Light duty sample conditioning systems available for removal of moisture and dust | Hi/Low gas, Low Flow alarms available High temperature filters and probes | Cabinet coolers can be fitted to most models Cabinet purge system available for use in hazardous areas Cold weather package for operation to -5°F (-20°C) Full automatic calibration with touch screen LCD display Hi/Low gas, Low Flow, and diagnostic alarms available High temperature filters and probes Isolated analog, RS232, RS485, MODBUS, and Ethernet outputs available One-step 'cal-now' button with touch screen LCD display Sample conditioning systems available for removal of moisture, acidic gas, and dust Sensor mounted in temperature controlled heated box to improve accuracy | Hi/Low gas, Low Flow, alarms available High temperature filters and probes | Cabinet coolers can be fitted to most models Cabinet purge system available for use in hazardous areas Hi/Low gas, Low Flow, alarms available High temperature filters and probes Light duty sample conditioning systems available for removal of moisture and dust | |||||
| Analyzer Type | CO2 Gas Analyzer | |||||||||
| Hazardous Area Rating Options | General Purpose, Non-Hazardous | Control Cabinet - General Purpose, Non-Hazardous Detector Cabinet - NEMA7 Class 1 Division 1 Groups BCD | Class 1, Div 1, Grp A-D Hazardous Area Rating | Control Cabinet - General Purpose, Non-Hazardous Detector Cabinet - NEMA7 Class 1 Division 1 Groups BCD | Class 1 Div 2 or Class 1 Div 1 Hazardous Area Ratings available | |||||
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