Ambient NOx Monitor
The APNA-370 continuously monitors atmospheric NO, NO2 and NOx concentrations using a cross-flow modulated semi decompression chemiluminescence method. The APNA-370 employs an independent, internal dry-method sampling device to achieve the highest levels of sensitivity and accuracy. The dry method, due to its minimal maintenance requirements and capability of continuous monitoring and instantaneous analysis of gas in its unaltered state, has been a preferred method for monitoring the atmospheric pollution.
Cross flow modulation type, reduced pressure chemiluminescence (CLD)
NO2, NO and NOX in ambient air
Standard ranges: 0-0.1/0.2/0.5/1.0 ppm; auto range ~ manual range selectable;
±1.0% of F.S.
±1.0% of F.S.
Sample gas flow rate
Measured value, range, alarm, maintenance screen
During AIC, zero calibration error, span calibration error, temperature error in converter, etc.
On-screen messages are available in four languages
English, German, French, and Japanese.
• 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)
100/110/115/120/220/230/240 VAC, 50/60 Hz (to be specified)
430(W) x 550(D) x 221(H) mm
Approx. 20 kg,
** U.S. EPA designation RFNA-0506-157
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