The measure principle is based on IR nephelometry / 850 nm. The sensor can be calibrated with a formazine standard solution.
The NTU sensor integrates a low-cost optical technology, with a very few maintenance and no consumables.
The PONSEL sensor can be connected to any types of transmitters, display units, controllers or data loggers with Modbus RS-485 or SDI-12 inputs. The optical sensor saves its calibration data for better measures management.
All data concerning calibration, history, users and measures are directly treated within the NTU sensor and transmitted via RS-485 or SDI-12
- IR optical sensor with optical fibre
- Range : 0 to 4000 NTU or 0-4500 mg/L
- Robust and waterproof (IP68)
- Ultra low-power consumption
- Digital output Modbus RS-485
- Nephelometry measurement
Resolution 0,01 to 1 NTU – mg/L
Accuracy < 5% of the reading
Working temperature 0°C to + 50°C
Measure of temperature Via CTN
Stocking temperature -10°C to + 60°C
Signal interface Modbus RS-485 (standard) and SDI-12 (option)
Maximum refreshing time < 1 second
Sensor power-supply 5 to 12 volts
Electric consumption Standby : 40 µA Average RS485 (1 measure/seconde) : 820 µA Average SDI12 (1 measure/seconde) : 4,2 mA Current pulse : 500 mA
PF-CAP-C-00173 NTU SENSOR, 3 METERS CABLE, BARE WIRE
PF-CAP-C-00174 NTU SENSOR, 7 METERS CABLE, BARE WIRE
PF-CAP-C-00166 NTU SENSOR, 15 METERS CABLE, BARE WIRE
NC-CAP-C-00157 NTU SENSOR, CUSTOM DESIGN CABLE LENGTH, BARE WIRE