Description
The APMA-370 is a device for continuously monitoring CO concentrations using a Non-dispersion cross modulation infrared analysis method. The APMA-370 employs an independent, internal dry-method sampling device to achieve the highest levels of sensitivity and accuracy. The dry method, due to its capability for continuously monitoring and instantaneously analyzing of gas in its unaltered state as well as its minimal maintenance requirements, has been a preferred method for monitoring the atmospheric pollution.
AS type (anti-shock) interference-compensating detector and purifier for reference gas.
Reference gas purifier oxidizes CO to CO2 to eliminate interferences.
Optics remain free of foreign matter with elimination of reflecting mirrors.
| Principle | Cross flow modulation, non-dispersive infrared (NDIR) absorption technology |
| Application | CO in ambient air |
| Range | Standard ranges: 0-10/20/50/100 ppm; 0-5/10/20/50 ppm; auto range manual range selectable; can be operated by remote switching. Optional (measurable) ranges: 4 ranges selectable from 0-200 ppm, within 10 times range ratio; auto range manual range selectable; can be operated by remote switching. |
| Repeatability | 1.0% of F.S. |
| Linearity | 1.0% of F.S. |
| Sample gas flow rate | Approx. 1.5L/min |
| Indication | Measured value, range, alarm, maintenance screen |
| Alarms | During AIC, zero calibration error, span calibration error, temperature error in catalyzer, etc. |
| On-screen messages are available in four languages | English, German, French, and Japanese |
| Input/output | 0-1 V/0-10 V/4-20 mA, to be specified (2 systems: either (1) momentary value and integrated or (2) moving average value) Contact input/output RS-232C |
| Power | 100/110/115/120/220/230/240 VAC, 50/60 Hz (to be specified) |
| Dimensions | 430(W) x 550(D) x 221(H) mm |
| Mass | Approx. 16 kg |
Advanced NDIR Technology for CO Detection
Utilizing Non-Dispersive Infrared (NDIR) absorption, the analyzer ensures high sensitivity and selectivity for carbon monoxide detection. This technique minimizes interference from other gases, delivering reliable measurements in both industrial process and ambient air quality monitoring.
User-Friendly Operation and Versatile Output
With automatic or manual zero and span calibration, users can conveniently maintain measurement accuracy. The analyzer supports multiple outputs, including 4-20 mA, RS232, and RS485, as well as relay-based high/low alarm outputs, making integration into various control systems straightforward.
Durable Build and Functional Design
Housed in a powder-coated metal enclosure (IP20 protection), the analyzer withstands harsh environments within a temperature range of 0C to 50C. Its compact, rectangular shape and moderate weight (approx. 7 kg) facilitate installation and portability, while the digital LCD or LED display offers clear data visualization.
FAQ’s of Ndir Co Analyzer/ Carbon Monoxide Analyzer:
Q: How does the NDIR CO Analyzer measure carbon monoxide?
A: The NDIR CO Analyzer uses Non-Dispersive Infrared (NDIR) absorption to detect CO levels. Infrared light passes through the sampled air; carbon monoxide absorbs a specific wavelength, and the instrument calculates the concentration by measuring this absorption.
Q: What applications are suitable for this carbon monoxide analyzer?
A: This analyzer is ideal for monitoring CO concentrations in both industrial and environmental settings. It is commonly used in factories, laboratories, air quality assessments, and safety monitoring for process gases.
Q: When is calibration required, and how is it performed?
A: Calibration should be carried out as per operational frequency guidelines or when measurement accuracy is critical. The device offers both automatic and manual calibration using standard gas, ensuring ongoing precision.
Q: Where can the analyzer be installed for optimal performance?
A: The analyzer should be installed in well-ventilated spaces within the operational temperature range (0C to 50C) and protected from direct exposure to dust and moisture, as its enclosure carries IP20 protection.
Q: What is the process for continuous CO monitoring with this device?
A: The unit utilizes a continuous aspiration sampling method to constantly analyze air or process gases. Real-time data is displayed and can trigger high/low alarms via relay outputs, enabling prompt responses to unsafe CO levels.
Q: How does the alarm system of the NDIR CO Analyzer function?
A: The analyzer features relay outputs for high and low CO concentration alarms. If set thresholds are crossed, relays activate external warning systems, improving safety and mitigating risks.
Q: What are the benefits of using an NDIR-based CO Analyzer?
A: NDIR-based analyzers offer high sensitivity, selectivity, quick response times, and stable long-term operation, resulting in accurate, interference-free carbon monoxide readings for enhanced safety and process control.
