Mobrey MCU/MSP Measurement & Control Systems
Mobrey ultrasonic non-contact measurement and control systems are aimed specifically at level and flow applications in the environmental water treatment industry.
The MSP900 transmitter is a HART® compatible 2-wire loop powered 4-20mA transmitter, factory sealed for sump and wet well control, and operating over a range of 39 ft (12 m).
Optional MCU900 Control Units provide full control and functionality with five configurable relays and a 4-20mA re-transmitted signal. A local display and wizard assisted programming make these wall or panel mounted controllers very easy to commission and use.
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- ATEX II 1/2 G (Exia)
- MCU will accept and provide control functionality from any 4-20mA or HART transmitter
- Full menu of pre-programmed algorithms for level, contents and flow measurement
- MSP transmitters up to 39 ft (12 m) range
- 4-20mA signal from MSP proportional to level, contents, or flow-feed direct into control PLC
- MCU provides low cost alternative to local PLC or controller if required
- Choose ultrasonic, hydrostatic, or radar level transmitters for maximum reliability
| Key Specfication |
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| Electrical |
| Power Supply |
ac powered: 98 to 132 Vac (50/60 Hz) or 198 to 254 Vac (50/60 Hz)
dc powered: 15 to 30 Vdc |
Power
Consumption |
ac powered: 18 VA maximum
dc powered: 9 W maximum |
| Current Input |
4–20 mA and HART Digital communications (Rev. 5)
Supplies 23 V from 400Ω source resistance |
| Trigger Inputs |
2 voltage-free contact closures |
| Relays |
5 x SPCO, 5 A at 240 Vac |
| Cable Entry |
5 positions pre-drilled. 2 glands and 3 blanking plugs provided |
| Cable Connection |
| Wall mount: |
Cage clamp terminal blocks in separate terminal compartment |
| Panel mount: |
2 part cage clamp terminal blocks at rear | |
Process Temperature
Limits |
See Order Information in data sheet IP0077 |
| Mechanical |
| Material |
Enclosure and keypad: Polycarbonate |
| Dimensions |
| Wall mount: |
8.39 x 7.28 x 3.31 in.
(213 wide x 185 high x 84 mm deep) |
| Panel mount: |
Cut out 5.47 x 2.72 in. (139 wide x 69 high)
Allow 165mm clearance behind panel | |
| Enclosure Rating |
| Wall mount: |
IP65 (NEMA 4) indoor/outdoor |
| Panel mount: |
IP42 (NEMA 5) indoor mount;
IP65 (NEMA 4) Hood kit available | |
| Environmental |
Installation category: 115V: Cat.III, 230V: Cat.II
Pollution degree: 2 |
| Altitude |
6500 ft (2000 m) maximum |
| Relative Humidity |
100% |
| Temperature |
–40 to 131 °F (–40 to 55 °C)
Use of an air circulation fan is recommended if 3 or more panel mounting units are installed |
| Approvals |
ATEX coding II (1) G [Ex ia] IIC |
| Key Specfication |
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| Duty |
Level, distance, volume, and flow |
| Measuring Range |
1 to 39 ft (0.3 to 12 m) |
Process
Temperature |
–40 to 140 °F (–40 to 60 °C) |
Ambient
Temperature |
–40 to 140 °F (–40 to 60 °C) |
Operating
Pressure |
0 to 43 psi (0 to 3 bar) |
| Power Supply |
24 Vdc 2-wire loop-powered |
| Output |
4–20mA |
Digital
Communications |
HART |
| Certification |
ATEX: II 1 G Ex ia IIC T6
CSA: Ex ia IIC T6
FM: CL1 Div1 Grps A, B, C, D ; CL1 Zone 0 Ex ia IIC T6 |
Mounting
Arrangement |
1-in. NPT, 1-in. BSPP, and bracket |
Weatherproof
Rating |
IP68 to 9 ft / 3 m (equivalent to NEMA 6P) |
Materials of
Construction |
UPVC (stabilized) |
| Cable |
2-core screened |
| Cable Sheath |
PVC |
| Cable Length |
9, 26, 65 or 164 ft (3, 8, 20, or 50 m) |
| Note: The MSP900FH is pre-fitted with a MSP-RTP Remote Temperature Probe (see datasheet IP2036) |
- Measurement and display of level, volume or mass of liquid in any tank shape
- Inventory control
- Open channel flow measurement
- Control of pumps in effluent sumps and pits
- Flow through flumes and weirs
- Differential level across screens
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