Fully automatic on-line analyser for measuring concentrations of mediums in fluids according to wet chemical methods.
The photometer ammonium 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: reaction of NH3 at a pH value of 12 to indophenol blue
Wavelength: 643 nm
Measuring range: selectable option
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): 450 mm x 260 mm x 450 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: 90…264V AC
Output: 24 V DC, 10 A, 240 W (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
2x digital in
1x connector for leakage sensor
2x connector bubble detector for sample reagent
Actuators:
1x output for digester with temperature, heating (0-150 °C) and UV monitoring
1x control stirrer
1x motor control forward/backward and pulse counter
2x motor control – (direction jumper selectable)
6x 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 | 0-8 mg/l NH4 | 3% | 8 | |||
| 2 | 0-20 mg/l NH4 | 5% | 20 | |||
| 3 | 0-20 mg/l NH4 with dilution | 3% | 20D | |||
| 4 | 0-100 mg/l NH4 with dilution | 3% | 100D | |||
Number of sample channels | ||||||
| Pos. | ||||||
| 5 | 2 channels | -C2 | ||||
| 6 | 3 channels | -C3 | ||||
| 7 | 4 channels | -C4 | ||||
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 |