Description
Panametrics MMY30-R2B2G
Technical Specifications
- Product type: Ultrasonic flow meter electronics
- Principle: Transit-time
- Medium: Conductive/non-conductive liquid
- Pipe diameter: DN15 to DN6000
- Accuracy: ±1 % reading
- Repeatability: ±0.2 %
- Output: 4 to 20 mA, pulse, relay
- Communication: RS232/RS485, HART
- Supply: DC8 to 36 V
- Display: LCD
- Temperature: -40 °C to +60 °C
- Storage: -40 °C to +85 °C
- Humidity: 5 % to 95 %, non-condensing
- Protection: IP65
- Installation: DIN rail / field mount
Functional Features
- Transit-time liquid flow measurement
- Clamp-on transducers without process shutdown
- Bidirectional flow
- Velocity 0.25 to ±12 m/s
- 4 to 20 mA analog output
- Pulse totalizer output
- Relay alarm output
- RS232/RS485/HART communication
- LCD instantaneous and total flow
- Built-in data logger
Application Scenarios
- Water transmission pipeline flow
- Chemical liquid flow metering
- Oil pipeline custody transfer
- Cooling water network monitoring
- Wastewater flow measurement
Materials and Construction
- Housing: Die-cast aluminum
- Display: LCD
- Electronics: FR4 board
- Transducer ports: Coaxial fittings
- Terminals: Screw-fastened
- Seal: Silicone
Structural Features
- Field die-cast aluminum housing
- Front LCD and pushbuttons
- Side transducer coax and power/output terminals
- Sealed cable glands
- DIN rail or wall mount
- IP65
Working Principle Two transducers upstream and downstream send ultrasonic pulses with and against flow; the difference in transit time is proportional to flow velocity. The electronics measures transit times and computes velocity and flow. LCD displays flow; 4 to 20 mA and pulse transmit remotely. Pushbuttons set pipe diameter, material, wall thickness, and sound speed.
Installation Requirements
- Mount transducers per V or Z method on pipe
- Apply couplant uniformly
- Wall-mount or DIN rail the electronics
- Coaxial transducer cable length per manual
- DC24 V supply
- Temperature -40 °C to +60 °C
- Enter pipe parameters for calibration after power-up
Precautions
- Upstream/downstream straight run requirements met
- Uniform material, no liner
- Liquid full pipe, no bubbles
- Periodically check transducer couplant
- Store spares in dry environment
- Periodically air-gap zero verification
