意大利 ADEV MiniProbe M7873 氧化鋯煙氣分析儀
自熱探頭，設計用于測量煙氣中的氧氣（高達700°C），以提高天然氣、輕質油和中型油中小型鍋爐的燃燒效率和節省燃料，干燥生物泥漿過程中的氧氣控制，測量紡織和紙漿中的水蒸氣含量。
可作為變送器使用，探頭輸出4-20 mA，或與控制單元/顯示器組合使用。
MiniProbe M7873是唯一一款符合SIL 2標準的氧化鋯原位分析儀，能夠確保在生物泥漿干燥器等要求安全的應用中可靠地測量O2
可測量氣體
氧氣 [O2]
水[H2O]
主要特點
極端粗糙度
- 接觸工藝氣體的堅固材料
- 可連續或循環用于溫度高達 700°C 的煙氣
- 請勿損壞或變形
- 安裝和保護管使探頭適用于高粉塵煙氣
安裝及保護管
- MiniProbe 可以配備堅固的 AISI 保護管和集成過濾器，以確保：
- 有效防止灰塵和磨損
- 臟污物質不能直接粘在傳感器上
- 安裝更簡單
便于使用
- 直接插入管道或管道
- 無需從過程中移除探頭即可驗證校準
歐洲合規性
- 低電壓指令 2014/35/EU
- EMC 指令 2014/30/EU
SIL 2
MiniProbe M7873 可選擇符合 SIL2 標準，符合標準 IEC/EN 61508：2010（第 1 至 7 部分）
參數
| Probe | |
|---|---|
| Accuracy | 0.1% O2 below 5% or 2% of reading above 5% |
| Repeatability | ± 1% of reading (short term) |
| Output Resolution | 0.01% O2 |
| Response Time | Sensor: 0.1 sec. ; Overall system < 5 sec. |
| Flue Gas Temperature | up to 700°C (on request up to 800°C) |
| Insertion Length | 100 / 200 / 300 mm |
| Process Connection | 3/4” NPT-F or 2” NPT-F with installation and protection tube |
| Ambient Temp. Influence | Probe: max ± 0.005% of reading per °C. |
| External head: max. 0.06% of reading per °C | External head: max. 0.06% of reading per °C |
| Atm. Pressure Influence | 1% of reading per 1% change in ambient pressure. |
| Probe Head Protection | IP65 |
| Head Temperature | -5°C…+55°C |
| Weight | Probe: 1 Kg. ; Installation tube: 1 Kg. |
| Wiring Connections | N°2 cable glands for cables max. 13 mm and inner terminal strip |
| Pneumatic Connections | Calibration inlet: 1/8” NPT-F |
| Measuring Principle | Zirconium Oxide (Zirconia). Micro-pod sensor technology with no need of reference air |
| Humidity | 0….90% non-condensing |
| Analog Output | 1 x 4-20 mA linear output proportional to range; max. load 500 Ω (or 350 Ω with galvanically insulated module) or logarithmic 50 mV/decade * |
| Ranges | 0-5 / 0-10 / 0-25% O2 (to select at order) |
| Diagnostic NV Logical Output (non-valid) | Logical Non Valid output from relay free contact. Normally supplied in fail safe condition (triggered relay and closed contact if not in alarm). Can be modified in field ** |
| Power Supply | 24 VAC ± 10%, 50/60 Hz, 50 VA |
| *Output from probe when connected to a remote ADEV control unit | |
| **Mandatory for probe SIL2 compliant |
| Control Unit | |
| ADV222 specifications (common to all versions) | |
| Analog Inputs | 2 x isolated. |
| Analog Outputs | 2 x isolated |
| Output Resolution | better than 1×10.000 of FS |
| Relays | N°2 relays SPDT, 230 VAC, nominal 2A (max 4A) *** |
| Power Supply | 8…28 VDC ; 9…24 VAC |
| Ranges | 0-25% O2 **** |
| Operative Temperature | -20°C…+70°C |
| Humidity | 0….90% non condensing |
| Led | Power supply (blue) – Cumulative inputs overload (red) – TX/RX (yellow/amber) |
| Serial Interface | RS485 2-wire (Protocol ModBus-RTU) |
| Line Impedance | 120 ohm |
| Termination Type | External |
| Max Speed | 57600bps |
| Max No. of Nodes | 32 |
| Protection | IP20 |
| Weight | 900 gr. |
| Connections | Removable screw terminals pace 5,08 mm |
| Conductor Section | Max. 2,5 mmq |
| Mounting | DIN rail |
| ***Threshold to be selected at order (factory set) or settable in field by PC with ADEV Easy Configurator or by display if ADbox or ADcaseM are selected | |
| ****Default range factory set. Modifiable on request at order on customer specification or by PC with ADEV Easy Configurator | |
| Supplementary ADbox Specification | |
| Protection | IP55 |
| Weight | 8 Kg. |
| Dimensions | 400 x 300 x 150 mm |
| Display | LCD 2.42” OLED. Resolution0.01% |
| Cable Entrance (bottom) | N°4 cable glands PG 13 / 9 / 7 |
| Supplementary ADcase Specification | |
| Protection | IP55 |
| Weight | 10 Kg. |
| Dimensions | 400 x 300 x 150 mm |
| Display | LCD 2.42” OLED. Resolution0.01% |
| Cable Entrance (bottom) | N°4 cable glands PG 13 / 9 / 7 |
| Pneumatic Connections | Calibration air inlets: 1/8” NPT-F |
| Configurations | ADcaseM-1: Pressure reducer and manual valve |
| ADcaseM-2: Pressure reducer and electro valve |
