microFlu HC
Submersible miniature fluorometer for highly accurate and selective measurement of oil in water.
microFlu HC is a new immersion probe for measuring oil in water. The measuring principle of UV fluorescence used is many times more sensitive and specific than the conventionally used infrared scattering or absorption methods. This makes it possible to determine even the smallest traces of PAHs, e.g. in drinking water, but also in cooling water condensates. The field of application ranges from petrochemistry, leakage detection in cooling and waste water streams to environmental monitoring. The instruments can be used stationary in manholes or in flow-through, as well as in pipelines. A nano-coating reduces the contamination of the optical measuring windows and thus reduces the required maintenance to a minimum.
microFlu HC is equipped with an RS-485 interface that allows easy and fast sensor configuration via Modbus RTU and also has an analog interface. Integration with existing process control systems and external data loggers has never been easier.
Areas of application
- without sampling and sample preparation
- without delay
- without reagents
- high sensitivity and selectivity
- optical windows with nano-coating
Areas of application
- Surface waters
- Drinking water
- Waste water
- Airports
- Cooling water
- Desalination plants
- Refineries
- Seepage ditch
- Pipeline monitoring
- Bilge water monitoring
Parameters
- PAH
- oil in water
- BT
Technical Data
| Light Source | LED 255 nm | |
| Detector | Photodiode + Filter (360 nm) | |
| Measurement principle | Fluorescence | |
| Parameter | PAH, Oil in water | |
| Measuring range | PAH: 0-5000 μg/L | PAH: 0…5000 ppb |
| Oil in water: 0–150 mg/L* | Oil in water: 0…150 ppm typ. | |
| Detection limits | PAH: 5 μg/L | PAH: 5 ppb |
| Oil in water: 0.15 mg/L* | Oil in water: 0.15 ppm typ. | |
| Measurement accuracy | ±(10 % + detection limit) | |
| Resolution | < 0.3 μg/L | |
| Sensitivity | 2 μg/L | |
| Temperature compensation | no | |
| Turbidity compensation | No | |
| Data logger | No | |
| Response Time (T90) | 6 s (default) | |
| Smallest measuring interval | 3 s (default) | |
| Cross-sensivity | Turbidity, DOM | |
| Housing material | Stainless steel (1.4571/1.4404) or titanium (3.7035) | |
| Dimensions (L x Ø) | ~ 162 mm x 48 mm | ~ 6.4“ x 1.9“ |
| Weight stainless steel | ~ 650 g | ~ 1.4 lbs |
| Weight titanium | ~ 510 g | ~ 1.1 lbs |
| Interface digital | RS-485, Modbus RTU | |
| Interface analog | 4…20 mA (default) | |
| 0 – 5 V | ||
| 0 – 10 V | ||
| Power consumption typical | max. 0.6 W | |
| Power consumption with activated analog interface | max. 1.1 W | |
| Power consumption Power-Down | max. 70 mW | |
| Power supply | 12 – 24 VDC (± 10 %) | |
| Maintenance effort | ≤0.5 h/month (typical) | |
| Calibration/maintenance interval | 24 months | |
| Warranty | 1 year (EU: 2 years) | USA: 2 years |
| Max. pressure with SubConn | 30 bar | ~ 435 psig |
| Max. pressure with fixed cable | 3 bar | ~ 43.5 psig |
| Max. pressure in FlowCell | 1 bar, 2…4 L/min | ~ 14.5 psig, 0.5 to 1 gpm |
| Protection type | IP68 | NEMA 6P |
| Sample temperature | +2…+40 °C | ~ +36 °F to +104 °F |
| Ambient temperature | +2…+40 °C | ~ +36 °F to +104 °F |
| Storage temperature | -20…+80 °C | ~ -4 °F to +176 °F |
| Inflow velocity | 0.1…10 m/s | ~ 0.33 fps to 33 fps |
