The in-line flue gas probe AMS 3211-860/150 Ex zone 1is equipped with a zircon dioxide sensor located in the tip of the probe. The flue gas probe AMS 3211-860/150 Ex can be used for the measurement of oxygen in flue gases from gaseous, liquid and solid fuels and biomass in Ex zone 1.
For applications with solid fuels and biomass the in-line flue gas probe AMS 3211-860/150 Ex is equipped with an additional stainless steel tube to protect the probe against abrasion. In combination with the transmitter AMS 3220 the in-line flue gas probe AMS 3211-860/150 Ex is certified by the German TÜV according to European and German environmental regulations and fulfils the requirements for QAL 1 according EN 14181 and EN ISO 14956.
The AMS 3210-860/150 Ex zone 2 is designed for use in Ex zone 2.
Additional product features:
- Immersion depth up to 860 mm
- Fast and easy sensor replacement
- Flanges are available in DIN or ANSI sizes
- Continuous monitoring of sensor signal, heater and measuring value on plausibility by the transmitters AMS 3220 or AMS 5200
- Back-purge and auto-calibration features are available as options
Technical data
| ZrO2 probe | AMS 3211-860/150 Ex zone 1 AMS 3210-860/150 Ex zone 2 |
|---|---|
| Ex classification | ATEX II 2G Ex d IIB + H2 T3 / ATEX II 3G Ex nC IIB + H2 T3 |
| Measuring principle | ZrO2 probe with Pt-electrodes |
| Application | Residual oxygen in flue gas |
| Construction | ZrO2 sensor installed in the tip of the probe with stainless steel sinter metal filter screwed on, designed as a flame arrestor |
| Flue gas temp., max. | 500 °C |
| Dust content (flue gas) | max. 5 grams/Nm3, if higher shield to protect against abrasion or separate protecting tube |
| Flue gas velocity | max. 20 m/Sec. or separate protecting tube |
| Time for pre-heating | ~ 10 Minutes |
| T90 time | < 20 Seconds |
| Reaction time | < 3 Seconds |
| Probe length | 150 – 860 mm |
| Connecting flanges | DN 80 PN 40 (larger on request) |
| Material | Stainless steel 1.4571 |
| Installation in the stack | pointing downward |
| Protection | IP65 |
| Reference air supply | by separate pneumatic unit |
| Calibration gas supply | by separate pneumatic unit |
| Weight | ca. 12,5 kg |
| Accessoires | |
| Transmitter | AMS 5200 / AMS 3220 in housing IP 65 |
| Pneumatic unit | GRP housing, dimensions: 600 x 600 x 200 mm / 800 x 600 x 300 mm |
| Version: AMS 3211-860/150 E V-2013-07 |