The in-line flue gas probe AMS 3211-860/150 Ex is equipped with a zircon dioxide sensor located in the tip of the probe. The flue gas probe AMS 3212-860/150 Ex can be used for the measurement of oxygen in flue gases from gaseous, liquid and solid fuels and biomass in Ex zone 1 and 2.
For applications with solid fuels and biomass the in-line flue gas probe AMS 3212-860/150 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 3212-860/150 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.
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 3212-860/150 Ex |
|---|---|
| Ex classification | II 2G Ex d 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 | < 10 Seconds |
| Reaction time | < 2 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. 10,5 kg |
| Accessoires | |
| Transmitter | AMS 3220 in housing IP 65 or Ex-d |
| Pneumatic unit | GRP housing, dimensions: 600 x 600 x 200 mm / 800 x 600 x 300 mm |
| Version: AMS 3212-860/150 E V-2013-08 |