Fully automatic on-line analyser for measuring concentrations of mediums in fluids according to wet-chemical methods.
The photometer nitrogen version of the BlueMon system comprises of the following equipment: analyser unit and control and measurement electronics in a powder-coated cabinet.
Measuring cell: photometer
(wavelength and measuring gap is dependent on the method)
Method: oxidation of the nitrogen in a UV digestor then reduction
of nitrates to nitrites and reaction with NEDD to a red azo complex
Wavelength: 525 nm
Measuring range: selectable option
The choice of procedure determines the number of pumps, valves and
the photometer configuration with regard to wavelength and cuvette.
Number of sample channels: selectable option
Number of free valves: dependent on procedure
e.g. use as dilution channel (e.g. H2O)
Number of peristaltic pumps: dependent on procedure
Number of process valves: dependent on procedure
Technical details:
Protection classification: IP54 (optional IP65)
Dimensions: (LxWxH): 600 mm x 300 mm x 700 mm
Cabinet material: aluminium (powder-coated)
Colour: blue (RAL 5010)
Sample pressure: 0 bar (max 0.05 bar overpressure)
Sample temperature: 10 °C … 35 °C
Sample flow rate: 2 … 10 l/h, no suspended solids
Samples with particle size > 30 microns need filtration
Environmental temperature: 15 °C … 35 °C
Operating system: embedded Linux
Power consumption (average): 45W
External power supply unit:
Input voltage range: 85…265V AC
Output: 230 V/50 Hz (power supply included)
Measurement, control inputs and outputs
Interfaces:
1x Ethernet (incl. Modbus)
1x Serial Interface (example protocols: RS232/RS485 (Modbus RTU), IEC 60870-5-104; further more, see protocol list)
1x CAN bus (for connecting further BlueBox System modules for sensors and actuators)
2x current output 4 – 20mA
Additional interfaces: selectable option
Sensors:
1x photometer interface with power adjustment for brightness control
1x connector for pH glass electrode
1x connector for temperature (PT1000) 0 – 80 °C
1x connector redox electrode
1x current input 4 – 20mA
6x digital in
1x connector for leakage sensor
6x connector bubble detector for sample reagent
Actuators:
1x output for digester with temperature, heating (0-150 °C) and UV monitoring
1x control stirrer
2x motor control forward/backward and pulse counter
5x motor control – (direction jumper selectable)
12x relays for valves, limit and interference signals
Chemical drainage: selectable option
| Selectable options | Measuring range | Number of sample channels | Additional interfaces | Chemical drainage | ||
| Measuring range | ||||||
| Pos. | Accuracy | |||||
| 1 | 0-0.5 mg/l Total N | 3% | 0,5 | |||
| 2 | 0-10 mg/l Total N | 3% | 10 | |||
Number of sample channels | ||||||
| Pos. | ||||||
| 3 | 2 channels | -C2 | ||||
| 4 | 3 channels | -C3 | ||||
| 5 | 4 channels | -C4 | ||||
| 6 | 5 channels | -C5 | ||||
| 7 | 6 channels | -C6 | ||||
Additional interfaces | ||||||
| Pos. | ||||||
| 8 | Without | -/ | ||||
| 9 | 2x 4-20 mA | -2mA | ||||
| 10 | 4x 4-20 mA | -4mA | ||||
Chemical drainage | ||||||
| Pos. | ||||||
| 11 | Without | -/ | ||||
| 12 | Chemical drainage | -ca | ||||