FPI AQMS-400 carbon monoxide (CO) analyzer measures ambient CO concentration by employing nondispersive infrared with gas filter correlation method technology.
FPI AQMS-400 carbon monoxide (CO) analyzer measures ambient CO concentration by employing nondispersive infrared with gas filter correlation method technology.
المبدأ
Infrared energy emitted by light source is passed through gas chamber containing the air sample, and the quantitative absorption of energy by CO in the sample cell is measured by corresponding detector.
| النطاق القياسي | (0~50)ppm, Expandable |
| المبدأ | NDIR |
| صفر ضوضاء | ≤0.1ppm (RMS) |
| ضوضاء الامتداد | ≤0.25ppm (RMS) |
| الحد الأدنى القابل للكشف | ≤0.04ppm (RMS) |
| العرض | 0.05ppm |
| انحراف صفر | ±0.1ppm |
| انجراف المسافة | <0.5% of reading |
| الخطية | <1%F.S. |
| الدقة | <1% |
| وقت الاستجابة | T90<60 ثانية |
| معدل تدفق العينة | (800±80)sccm |
| نقل البيانات | 2 channel analog (4~20) mA; 12 digital input/output; 4-way relay output; |
| الاتصال | RS232/RS485/RS485/Ethernet |
| درجة حرارة التشغيل | US EPA Specification 20~30°C Actual applicable:-5~55°C |
| رطوبة التشغيل | 0~95%RH |
| المعايرة | Multi-point calibrator |
| متطلبات الطاقة | 220 فولت تيار متردد/50 هرتز؛; 110 فولت تيار متردد/60 هرتز |
| الأبعاد والوزن | 178(H)x432(W)x597(D)mm, 28kg |
GFC
GFC (Gas filter correlation) technology is utilized to remove interference caused by moisture and other backgrounds.
Two gas filled chambers are mounted on a rotating disc, which pass through an IR beam alternately. The measure chamber is filled with nitrogen while the reference chamber is filled with high concentration CO. IR beam then passes through the sample gas cell. The difference in absorbance is measured and provides a direct output of the gas concentration.
Data storage and analysis
Stored data are easily retrievable through the serial or ethernet port via PC client software, allowing operators to perform predictive diagnostics and enhanced data analysis by tracking parameter trends.
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