Katalog Produk

Keterangan

The Nova 481 Series CO analyzers utilize a simple and reliable microprocessor-based non-dispersive infrared detector specific to CO. 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 CO 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
481 - 0-1, 0-5, 0-10, 0-20, 0-30, 0-50, 0-100% CO
Resolution 0.1% CO on % versions, 1 PPM CO 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° C, -20° F) 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 CO Analyzer

Applications
For continuous analysis of carbon Monoxide ( CO) in process gas streams using an infrared detector. Percent and PPM levels available as Models 481 and 481L respectively.

Features
Percent or PPM levels CO by infrared
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 -20° C ( -5 ° F)
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
Span using a known CO in nitrogen ( N2) calibration gas.