821 Nitrous Oxide Analyzer
Negotiable
China
**No. 611, Building 6, Bonded Logistics Park, No.777 Guanggu 3rd Road, Donghu New Technology Development Zone, Wuhan
027-87926078
Online Contact
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Product Introduction

Product Overview:

The instrument adopts the gas correlation infrared absorption method. The basic working principle is: nitrous oxide has absorption characteristics for infrared radiation of specific wavelengths, and the absorption strength has a certain relationship with the nitrous oxide concentration. The detection method is: infrared light from the infrared light source passes sequentially through the nitrous oxide and N₂ in the rotating wheel, the filter, and then enters the optical chamber through a narrow-band interference filter. The infrared light passing through the nitrous oxide filter in the filter wheel is absorbed and cannot absorb N₂O in the sample gas again in the optical chamber, forming the reference light intensity. The infrared light passing through the N₂ filter in the filter wheel is not absorbed and shines on the sample gas in the optical chamber. The N₂O in the sample gas absorbs infrared radiation, forming the measurement light intensity that passes through the optical chamber and shines on the infrared detector. The concentration of N₂O in the sample gas is calculated using the Lambert-Beer law from the ratio of the two light intensities.

Product Features:

  • LCD touchscreen operation interface
  • Continuous, real-time monitoring
  • Advanced digital processor
  • Automatic alarm function
  • Flexible calibration methods
  • Supports networked applications
Product Parameters

● Measuring principle

Gas filtered correlation (GFC) method

● Response time

≤150 s

● Zero drift

±0.20 ppm / 24h

● Range drift

<±0.5% FS / 24h

● Sampling flow

800±50 ml/min

● Linear

±2% FS

● Digital output

RS232 / RS485, USB, Ethernet interface

● Working temperature

0-40°C

● Range

0-1000 ppm

● Indication error

±1% FS

● Zero noise

≤0.5ppb

● Minimum detection limit

≤10ppb

● Repeatability

±2% FS

● Analog output

0-5V, 4-20mA

● Working temperature

0-40°C

● Overall dimensions

482 × 570 × 222mm