Ecotech Acoem Serinus 30, Руководство пользователя

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Introduction Page 21
1. Introduction
1.1 Description
The Ecotech Serinus 30 Carbon Monoxide Analyser uses Non-Dispersive Infrared Spectrophotometry
(NDIR) technology to measure CO in ambient air, in the range of 0 - 200 ppm.
The U.S. EPA has designated the Serinus 30 Carbon Monoxide Analyser as a reference method and TÜV
has designated it as an EN approved instrument.
This section will describe the specifications of the instrument as well as the main components and
techniques used to obtain stable gas concentration readings.
1.2 Specifications
1.2.1 Measurement
Range
0 - 200 ppm (autoranging)
U.S. EPA designated range: Any full scale range between 0 - 50 ppm
TÜV EN certification range: 0 - 100 ppm
Lower Detectable Limit
< 0.04 ppm (40 ppb), with Kalman filter active
1.2.2 Precision/Accuracy
Precision
20 ppb or 0.1% of reading, whichever is greater
Linearity
Better than ± 1% of full scale (0 - 50 ppm); ± 2% of full scale (0 - 200 ppm), from best straight-line fit
Noise at Zero
< 0.02 ppm or 0.2% of concentration reading whichever is greater
Response Time
60 seconds to 95%
Sample Flow Rate
1.0 slpm