The S4 QUASAR Heated vaccuum chemiluminescence gas analysers combine high levels of performance with flexibility and ease-of-use in the continuous measurement of NOx, Nitric Oxide, Nitrogen Dioxide or Ammonia.Heated vacuum chemiluminescence is the reference method for monitoring NOx (combined NO and NO2), offering higher sensitivity with minimal quenching effects, and a heated reaction chamber facilitates the processing of hot, wet sample gases without condensation. The reaction of NO (Nitric Oxide) and O3 (ozone) to produce the chemiluminescence is greatly improved under vacuum, with a better signal to noise ratio, and a fast response time makes it ideal for real-time reporting applications. This method is specified in many standards, such as EN 14792 and Method 7E.
Key Features
• Very high vacuum with dry vac pump or atmospheric pressure versions
• ‘Hot’ and ‘Cold’ versions
• Totally automatic operation
• Wireless tablet
• Software suite for use over ethernet or RS232
• Dual detectors for continuous NO2, NO and NOx readings
• Trace PPM measurements standard
• High range % available
Relevant standards:
- EN14792
- Method 7e
- EURO VI/VII
- Ecodesign
- ARP1256D
Technical Specification
MEASURING UNITS: PPM or mg/Cu.Mtr. user selectable
MEASURING RANGES:
Range A: 0-1000ppm. User settable to e.g. 0-1ppm, 0-5ppm, 0-10ppm, 0-50ppm, 0-100ppm, 0-500ppm, 0-1000ppm. Resolution: 0.01ppm
Range B: 0-10000ppm. User settable to e.g. 0-10ppm, 0-50ppm, 0-100ppm, 0-500ppm, 0-1000ppm, 0-5000ppm. 0-10,000ppm. Resolution: 0.1ppm
Range C. 0-100,000 ppm. User settable, with resolution of 1ppm
RESPONSE TIME: T90 <2.0s
REPEATABILITY: <1% FSD
QUENCHING EFFECT: CO2 and H2O Quenching. 2% of reading per 15% CO2 and 2% reading per 2% H2O
LINEARITY:
+/- 0.5% FSD or 2% of point
EN14181 – dc rel : <2%
R2 : >0.99
ZERO DRIFT: <0.5% FSD/24hrs
TEMPERATURE EFFECT ON ZERO: <0.15% per o C
TEMPERATURE EFFECT ON SPAN: <0.3% per o C
ZERO NOISE: <0.1ppm
SPAN NOISE: <+/-0.1%FSD for vacuum version. <+/-0.3%FSD for non-vacuum version
DETECTION LIMIT: 0.05mgC/m3
BYPASS FLOW SENSITIVITY: Less than 0.5% from 1 to 3 L/min
SAMPLE FILTER: Removable 0.4 micron PTFE
SAMPLE CONDITION: Max temp190o C Pressure -0.3bar to +0.5bar
OPERATING CONDITIONS: 5-40o C ambient temperature
AIR SUPPLY:
Air for Ozone (O3) flow 140ml/min.
Pressure 0-1bar max dewpoint 12o C.
Stable O2 concentration >20%
CONVERTER EFFICIENCY: NOx >95% or NH3 >85%
OUTPUTS:
0-10 Vdc
RS232
Ethernet
TCP/IP
Optional 4-20 mA
POWER REQUIREMENTS: 220-240 V AC 110-120 V AC 24 V DC 600 W max.
REMOTE CONTROL: AK protocol via RS232 port, Ethernet Comes with S4i remote software operating system.
SIZE AND WEIGHT: 19” (w) x 133.5 (h) x 530 mm (d). Apx. 30Kg
