SIGNAL S4 QUASAR : Analyseur de NOx

Type Temperature Ranges are user defined. Examples…

Heated vacuum pump,

Single detector

190 °C 0–1 ppm, 0–5 ppm, 0–10 ppm,

0–50 ppm, 0–100 ppm

0–500 ppm, 0–1000 ppm

Heated vacuum pump, dual detector

190 °C 0–1 ppm, 0–5 ppm, 0–10 ppm,

0–50 ppm, 0–100 ppm

0–500 ppm, 0–1000 ppm

Without pump,

Single detector

50 °C

Non-condensing at ambient temperature

0–10 ppm,

0–50 ppm, 0–100 ppm

0–500 ppm, 0–1000 ppm

Technical specifications:

Measurement technique: Chemiluminescence detector (CLD)

Units of measurement: PPM or mg/m³. User-selectable

Measurement ranges: • Range A: 0–1000 ppm:

User-configurable to 0–1 ppm, 0–5 ppm, 0–10

ppm, 0–50 ppm, 0–100 ppm, 0–500 ppm, 0–1000 ppm.

Resolution: 0.01 ppm

• Range B: 0–10,000 ppm:

User-configurable, e.g. 0–10 ppm, 0–50

ppm, 0–100 ppm, 0–500 ppm, 0–1,000 ppm, 0–

5000 ppm. 0–10,000 ppm. Resolution: 0.1 ppm

• Range C: 0–100,000 ppm:

User-configurable, with a resolution of 1 ppm.

Response time: T90 <2.0 s

Repeatability: <1% FSD

Quenching effect: CO₂ and H₂O quenching. 2% of reading per 15%

CO₂ and 2% of reading per 2% H₂O

Linearity: ± 0.5% FSD or 2% of the point EN14181 - dc rel: <2%

R²: >0.99

Zero drift: <0.5% FSD/24 hours

Temperature effect on zero: <0.15% per °C

Temperature effect on span: <0.3% per °C

Zero noise: <0.1 ppm

Span noise: < ±0.1% FSD for the vacuum version

< ±0.3% FSD for the non-vacuum version

Detection limit: 0.05 mg/m³

Bypass flow sensitivity: Less than 0.5% from 1 to 3 L/min

Sampling filter: Removable 0.4-micron PTFE

Display: Vacuum or detachable screen

Sample conditions: Maximum pressure of 190 °C

Pressure: -0.3 bar to +0.5 bar

Operating conditions: Ambient temperature 5–40°C

Air supply: Air flow rate for ozone (O3): 140 ml/min

Pressure: 0–1 bar max, dew point 12°C

Stable O2 concentration: >20%

Converter efficiency: NOx > 95%

NH3 > 85%

Outputs: 0–10 V DC

RS232

Ethernet

TCP/IP

4–20 mA option

Available power supplies: 220–240 V AC

110–120 V AC

24 V DC

600 W max.

Remote control: AK protocol via RS232 port,

Ethernet

Supplied with the S4i remote operating system.

Dimensions and weight: 19 in x 133.5 mm (H) x 530 mm (D)

Approx. 30 kg

Flexible:

Very high suction capacity with a vacuum pump or atmospheric pressure version

‘Hot’ and ‘cold’ versions

Easy to use:

Fully automatic operation

Wireless tablet.

Software suite accessible via Ethernet or RS232

Accurate:

Dual detector for continuous readings of NO₂, NO and NOx

Measurements in PPM (parts per million) in standard trace mode

Wide measurement range, percentage display available

A wide range of user-defined alarms are available for conditions such as:

1. Concentration limit (user-defined)

2. Sample flow rate (out-of-range limits)

3. Pump failure

4. Heater failure

5. Voltage out of range

6. Thermocouple failure

7. EHT out of range

8. Configuration error

9. Options set incorrectly

10. Incorrect calculations (no calibration settings)

GASES:

NOx / Nitric oxide / Nitrogen dioxide / Ammonia

Applications:

CEMS / Research / Compliance / Gas purity / Automotive / Air quality / Process / Combustion.

A chemiluminescence detector (CLD) for measuring NOx in engine emissions, combustion studies, treatment plants, continuous emissions monitoring systems (CEMS) and the production of medical gases.