Zirconia oxygen probe – ZFK8 FUJI ELECTRIC
The probe is used for continuous measurement of oxygen concentration in flue gases from boilers and industrial furnaces, for combustion control and optimization. It consists of a measurement probe combined with a signal converter. The probe is associated with a convection tube which is inserted into the flue gas to channel the gases to the probe for oxygen measurement. The converter (ZKM) is a microprocessor-based signal converter that manages inputs/outputs, digital communication, display and control of the overall operation. The converter features advanced functions such as self-diagnosis of operation and probe regeneration, giving it very long stability.
Features
- • No gas conditioning system required
• Easy maintenance
• High reliability thanks to diagnostic function
• Safe and secure
• Easy to use
• HART® communication is available as an option
Fields of application
Ideal for combustion control in boilers, incinerators and furnaces.
Technical Specifications:
| Measured gas temperature | Convection tube system : -10 °C to +600 °C (for general use, corrosive gases) System with ejector : -10 °C to 1500 °C (for high-temperature gases) -10 °C to +800 °C (general purpose) |
| Measured gas pressure | -3 to +3 kPa (-306 to +306 mm H2O) |
| Operating temperature | – 10 °C to +60 °C for the detector head -5 °C to +100 °C for the ejector ≤ 125 °C on detector flange, under voltage |
| Storage temperature | -20 °C to +70 °C for the sensing element -10 to +100 °C for the ejector |
| Construction | Waterproof and dustproof (IEC IP66) |
| Filter | Alumina (porosity: 50 µm) and quartz paper |
| Main materials of parts in contact with gas | Detector: Zirconium, 316 stainless steel, platinum Convection tube: 316 stainless steel Standard ejector: 316 stainless steel, 304 stainless steel High-temperature ejector: SiC, stainless steel 316, stainless steel 304 |
| Calibration gas inlet | 6 mm tube or 1/4″ tube (according to datasheet ) |
| Calibration gas flow | 1.5 to 2 l/min |
| Detector mounting | ± 45° from horizontal, the ambient air must be be clean |
| Ejector air inlet flow rate | 5 to 10 l/min |
| Purge air inlet pressure | 200 to 300 kPa (2 to 3 kgf/cm2) |
| Finish color | Silver and steel color |
| Exterior dimensions | (L x Ø max) 210 mm x 100 mm |
| Approximate weight | Detector: 1.6 kg Ejector: 15 kg (with 1 m tube) Standard 1 m convection tube: 5 kg |
