Parshall Flume Open Channel Ultrasonic Flow Meter with 24VDC Power
Supply
MLOF series is non-contact ultrasonic open channel flow meter, with
low blind area, high sensitivity, high stability. It consists of
ultrasonic probe and the host, mainly used for measuring water
conservancy irrigation, sewage plants, enterprises and institutions
of the flow rate of the sewage outfalls, urban sewage and chemical
enterprise part of the flow measurement.
1. FEATURES
☆ Multiple functions, with calculating,control,transmitting and
other functions.
☆ Match with various weir tank. Right-angle triangle
weir,rectangular weir,groove,parshall flume,throat channel slot.
☆ Accurate measurement , automatic temperature compensation
function, automatic filtering system, strong anti-jamming.
☆Accurate measurement in colder regions with electric heat tracing
sensor.
☆With IR remote control, easy to operate.
☆ Large screen display, double line 14 bit LCD liquid crystal
display (with backlight),
characters of the man-machine interface.
☆ With RS485 serial communication, the standard MODBUS RTU
protocol, can
communicate with Ethernet device, PC, PLC and DCS.
☆ Can provide up to 6 relays, can set the upper limit and lower
limit alarm and control
(instantaneous flow rate and water level), Can be set high, low and
fault alarm
2. TECHNICAL PARAMETERS
Technical Index
Weir&Flume Match: Chinese Standard: Parshall Flume, Triangular Weir ,Rectangular
Weir ,Non-throat Flume
ISO Standard: Parshall Flume
USBR Standard: Long-throat Flume (Rectangular Flume,Trapezoid
Flume)
Probe: 4m(otherwise other range and anti-corrosion requirements,indicate
when you order it)
Accuracy: 0.2% Full span (In air)
Display Resolution: 1mm
Mode of Indication: 14 Digit LCD in 2 rows
Output Current: DC4~20mA/RS485/Hart Serial communication RS485(modbus standard
protocol)
Output Load: 0~500Ω
Output Resolution: 0.03% Full span
Relays: 2,4,5,6(5A 250VAC/30VDC)
Baud rate: 19200/9600/4800
Parameter set up: 3 induction buttons
Temperature Range: -40 ºC ~75 ºC (LCD:-20 ºC ~+70ºC)
Temperature compensation: The whole range is automatic
Pressure Range: ±0.1MP (press definitely)
Power Supply: DC24V(±5%) 0.2A AC220V(±20%) 0.1A
Cable: Ø6-12mm
Single Wire Diameter: Ø0.5-1.78mm
Cable Fix: PG13.5/M20
Measure Cycle: 1.5second
Crust Material: ABS
Sensor Material: ABS/PVC/PTFE
Protect Grade: IP67
