Mobrey Ultrasonic Sludge Blanket Level Detection
Mobrey offers a number of electronic systems for a wide variety of applications in water and effluent processes, sludges, slurries and suspended solids, and has over 30 years experience in water and industrial applications.
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Features:
- Waste Water
- Primary sewage automatic sludge control
- Sludge thickening blanket level
- Secondary sewage high level blanket alarm
- Potable Water
- Wash water sediment levels
- GAC interface level
- Industrial effluent
- Monitoring china clay slurries
- Flue gas de-sulphurisation plants
- Sediment measurements in brewing
- Mineral processing
- Industrial slurries
- Industrial slurry processing
- Nuclear waste
Benefits:
- Low Maintenance
- Ultrasonic Frequencyoptions to suit most sludge types
- Sewage settlement tank discharge optimisation
- Simple Installation
- Ease of Calibration
| Key Specification |
| Control Units |
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Electrosensor |
MCU200 |
| Housing Dimensions |
6 x 3 x 4.4 in. (150 x 75 x 112 mm) |
IP65 |
| Enclosure Rating |
IP20 |
IP65 |
| Cable Entries |
Grommet |
3 off holes Ø 16 mm |
| Mounting Options |
Wall mount (DIN rail mount optional) |
Wall mount |
| Operating Temperature |
–4 to 150 °F (–20 to 65°C) |
–40 to 131 °F (–40 to 55 °C) |
| Output Relay (Alarm) |
SPDT rated up to 5 A / 100 VA maximum |
DPDT 5 A 230 Vac maximum |
| Output Relay (Fault) |
SPDT rated up to 5 A / 100 VA maximum |
No |
| Override Input |
No |
Contact closure |
| Power Supply |
115/230 Vac (50/60Hz) |
115/230 Vac (50/60Hz) |
| 24 Vdc option (non-certified) |
24 Vdc option |
| Frequency |
1 MHz or 3.7 MHz
(selectable at head amplifier) |
1 MHz or 3.7 MHz
(selectable at head amplifier) |
Cable Termination
From The Sensors |
Captive screw terminal block |
Captive screw terminal block |
| Maximum Cable Size |
1.5mm2 / 14 AWG |
1.5mm2 / 14 AWG |
| Hazardous Area Approval |
ATEX II (1) G [EEx ia] IIC |
No |
| Key Specification |
| Tank Mount Sensor |
| Material Sensors |
316 Stainless steel |
| Mounting Connection |
¾-in. BSPT |
| Standard Sizes |
Gap size 4" (100mm), 6" (150mm), 8" (200mm), 12" (300mm) 18" (450mm)
Other sizes upon request |
| Maximum Pressure |
145 psi (10 bar) |
| Operating Temperature |
–40 to 158 °F (–40 to 70 °C) |
| Sensor Cable |
Dual RG178B/U miniature co-axial |
| Cable Length |
Standard 23 ft (7 m)
Other sizes on request up to a maximum length of 100 ft (30 m) |
| Protection |
IP68 submersible |
| Hazardous Area Approval |
ATEX II 1 G EEx ia IIC T5 (U8H*M* for use with electrosensor) |
| Key Specification |
| Typical Measuring Ranges in % Solids (for 433 Gap Sensors) |
| Gap mm |
Gap inches |
PRIMARY
1MHz |
PRIMARY
3.7MHz |
FINAL
3.7MHz |
| 100 |
4 |
3 to 29% |
1 to 6% |
2 to 15% |
| 150 |
6 |
2 to 19% |
1 to 4% |
1 to 10% |
| 200 |
8 |
2 to 14.5% |
0.5 to 3% |
1 to 7.5% |
| 300 |
12 |
1 to 10% |
0.5 to 2% |
0.5 to 5% |
| 450 |
18 |
N/A |
0.5 to 1.3% |
0.5 to 3.3% |
- Rugged construction, no moving parts
- Control unit options for alarm, automation or monitoring
- Complete control system for primary tank desludge control
- Ultrasonic sensors suspended in tank, or discharge pipe mounted
- Analogue output meters for monitoring sludge discharges
- Microprocessor based control units
- Intrinsically safe versions
- Remote mounted electronics
- Sludge blanket alarm
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