Ultrasonic Level Meter for Open Channel, Parshall Flume

Product Specifications

Markets:	North America,South America,Eastern Europe,Southeast Asia,Africa,Oceania,Mid East,Eastern Asia,Western Europe
4-20mA Output:	2 Spdt Relays
RS485,Modbus-RTU:	IP67
Kind:	Liquid Level Transmitter
Structure:	Split Type
Range:	0-4m
Principle:	Time of Flight Method
Certification:	ISO9001
Material:	ABS
Measurement Accuracy:	1mm
Process Temperature:	-40-70 Degree C

Product Description

Application
The series is a remote version ultrasonic open channel flow meters (O.C.M.).
It consists of two elements, a wall mounted host, which has a display and an integral keypad for programming, and a probe, which must be mounted directly above the surface to be monitored. Both of the host and the probe are plastic leak-proof structure. The ULFM series OCM can be widely applied to the environmental protection, water treatment, irrigation, chemical, and other industries.

1.2 Features
This series ultrasonic open channel flow meters is capable of the following functions:
High detection accuracy, the flow meter measurement changes with 1mm, the accuracy of change in level is 1 mm;
Suitable for a variety of weirs and flumes, Parshall flumes (ISO), Right-angle triangle weir, Rectangular weir;
Displays flow rate in L/S or M3/h;
Excellent anti-interference capability;
Clear display with enhanced 14 digit two line backlit LCD;
The cable length between probe and host up to 1000m;
The probe with leak-proof structure and IP68 protect grade;
Chemically resistant probe materials for maximum application flexibility;
Provided 4-20mA output and RS485 serial communication (MODBUS-RTU) output;
Provided programmable 6 relays at most for alarms;
Three button for programming or remote control for easy configuration and operation(opt.);



Technical data
The host
Power supply :  DC24V (±5%) 0.2A; AC220V (±20%) 0.1A
Display: 2 lines 14 digit backlit LCD
The instantaneous flow rate range: 0.0000~99999L/S or m3/h
The maximum of cumulative flow: 9999999.9 m3/h
Accuracy of change in level: 1mm or 0.2% of measured distance from the probe at still water. (whichever is greater)
Resolution:1mm
Analogue output: 4-20mA into 500 Ohms, corresponding to instantaneous flow rate.
Relays outputs: 6 multi-function SPDT relays at most (optional), rated 5A /250VAC/30VDC, high, low and failsafe alarm and control corresponding to instantaneous flow rate or level.
Serial communication: RS485, MODBUS-RTU standard protocol
Ambient temperature: -40ºC~70ºC
Temperature compensation: Integral in probe
Pressure range: ±0.1MP (press definitely)
Measure cycle: 1 second (changeable )
Parameter setting: 3 induction buttons / remote control
Cable gland: PG9 /PG11/ PG13.5
Material: ABS
Protect grade: IP67
Fix: Hang
Dimensions: 248H*184W*122D(mm)


The probe
Range: 0.00-4.00m
Blind zone: 0.20m
Ambient temperature: -40ºC~70ºC
Temperature compensation: Integral in probe
Pressure range: 0.2MPa
Beam angle: 10 (3db)
Cable length: 10m standard (can be extended to 1000m)
Material: ABS, PVC or PTFE (optional)
Protect grade: IP68
Fix: Screw (G2) or flange (DN65/DN80/etc.)