APMA-370

Ambient Carbon Monoxide Monitor

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.

Segment: Process And Environmental

Division: Ambient

Manufacturing Company: HORIBA, Ltd.

Base product: AP-370 Series

• Cross-flow non-dispersive infrared detector; Low range: 0-5 ppm F.S.
• 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