CONTINUOUS PROCESS ANALYZER FOR METHANE BY INFRARED DETECTOR, Model : 470 SERIES, Brand : Nova

The Nova 470 Series CH4 analyzers utilize a simple and reliable microprocessor-based non-dispersive infrared detector specific to CH4. The detector pulses an infrared beam of light through the sample tube, without the need for a mechanical chopper. In operation, the internal sample pump draws the sample gas through the filter/ condensate trap, secondary filter, flowmeter, and then on to the infrared detector. The detector output is digitally linearized and then displayed as percent or PPM CH4 on the digital meter. The output is also available as an analog or digital signal. Specifications Method of Detection Single cell NDIR with no moving parts Ranges Available 470 - 0-1, 0-5, 0-10, 0-20, 0-30, 0-50, 0-100% CH4 470L - 0-500, 0-1000, 0-3000, 0-5000, PPM CH4 Resolution 0.1% CH4 on % versions, 1 PPM CH4 on PPM versions Accuracy & Repeatability 1% of full scale Drift Less than 2% of full scale per month Response Time ( T-90) Less than 15 seconds Ambient Temperature Range 40 to 122° F ( 5 to 50° C) , Lower temperatures ( -5° F, -20° C) available with Cold Weather Package Linearity ± 1% of full scale Size & Weight Physical data 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 High and/ or low alarm contacts available, relay contacts SPDT 5A @ 220 VAC rating, Low flow alarm Analyzer Type Continuous Online, Single Gas Hazardous Area Rating Options General Purpose, Non-Hazardous Applications For continuous analysis of methane ( CH4) in process gas streams using an infrared detector. Percent and PPM levels available as Models 470 & 470L respectively. Features PPM or percent CH4 by infrared detector Detector is sensitive, very reliable, and non-depleting Bright digital readout, 4-20 mA outputs Fast response ( T90 - less than 15 seconds) Microprocessor control for push button calibration Easy-to-maintain modular layout Built in sample pump, flowmeter, and filters Options Hi/ Low gas, low flow, and diagnostic alarms available Isolated analog, RS232, RS485, MODBUS, and Ethernet outputs available Sample conditioning systems available for removal of moisture, acidic gas, and dust Cabinet purge system available for use in hazardous areas One-step ' cal-now' button with touch screen LCD display Full automatic calibration with touch screen LCD display Cold weather package for operation to -5° F ( -20° C) Cabinet coolers can be fitted to most models Sensors mounted in temperature controlled heated box to improve accuracy High temperature filters and probes Calibration Easily zero checked on ambient air or nitrogen ( N2) Span using a known CH4 in nitrogen calibration gas.