Wi.Tec-Sensorik · The Gas Measurement Company
ULTRA.sens® processline AK250 / AZF VP for O₃

Gases:
Applications
Options
Features & Benefits
- No drift with Auto-Zero-Function
- Internal ozone-scrubber
- Fast response time
- No influence of gas humidity
- Mercury free design
Sensor Configurations
| Gas Channel 1 (*) | Gas Channel 2 (*) | Gas Channel 3 (*) | Gas Channel 4 (*) | Options (**) | ||||
|---|---|---|---|---|---|---|---|---|
| Single Gas Module | 1.1 | | P | H | ||||
List of Measurement Ranges
| Measuring range (*) | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 100 Vol.% | 50 Vol.% | 30 Vol.% | 20 Vol.% | 10 Vol.% | 5 Vol.% | 1 Vol.% | 5,000 ppm | 2,000 ppm | 1,000 ppm | 500 ppm | 300 ppm | 100 ppm | 50 ppm | 10 ppm | 1 ppm | |
| O₃ | ||||||||||||||||
Technical Data
| General features* | |
|---|---|
| Measurement principle | Non-dispersiveultraviolett (NDUV) ; dual beam |
| Measurement range | 1.000 ppb / 100 ppm O₃ |
| Gas flow | 0.1 – 2 l /min |
| Dimensions | 342 mm × 120 mm × 93 mm |
| Weight | 830 g |
| Tube connector | 4/6 mm tube |
| Lifetime of UV radiation source | > 10 000 h (LED; O₃) |
| Maintenance interval | 1 year (O₃ scrubber) |
| Measuring response* | |
|---|---|
| Warm-up time | < 15 min 3 |
| Response time (t90) | < 5 s 4 |
| Detection limit (3·σ) | < 0,3 %F.S. 5 |
| Linearity error | < ± 0.75 %F.S. |
| Repeatibility | ± 0.5 %F.S. |
| Long term stability (zero) | < 1 %F.S. /4h 3 < 1 %F.S. /month with AZF 1 active |
| Long term stability (span) | < ± 0,5 %F.S. /month |
| Temp. Influence zero | < 1 %F.S. /10K |
| Temp. Influence span | < 1 %F.S. /10K |
| Pressure influence | < 1.5 % /10 hPa of reading |
| Electrical inputs and outputs | |
|---|---|
| Supply voltage | 15..30 VDC |
| Supply current (peak) | < 120 mA |
| Digital output signal | RS 232 (ASCII) , CAN-Bus , Modbus (RTU) |
| Climatic conditions | |
|---|---|
| Operating temperature* | 5 – 40 °C |
| Storage temperature | -20 – 60 °C |
| Air pressure | 300 – 1200 hPa (mbar) |
| Ambient humidity | 0 – 95 % rel. humidity (not condensing) |
Featured Performance Sections
NDUV AK250 O3 Sensor [ppb]
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