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Multi Parameter Transmitter

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Difference Insertion Flow Meter

Clamp On Ultrasonic Flow Meter

CBRO ultrasonic flow meter adopts a new external clamp design, which could get the flow rate without touch the measurement medium. As the advantage of a clamp on flow meter, no need to cut off the pipe or long time stop the equipment, save the cost of time and labor costs. Easily and friendly for installation and operation, CBRO811 could not only work as flow meter, but also BTU meter to realize the monitoring of flow and energy.

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Advantages

Comparing with other traditional flow meter, CBRO811 ultrasonic flow meter is specially designed for small pipe sizes clamp on flow measurements. It is integrated design with the monitor LCD and the sensors in one body, user could read flow rate directly from the device. With various kinds of outputs including 4-20mA, OCT pulse and RS485 modbus, ultrasonic flow meter could achieve remote monitoring in central control room.

Application

CBRO811 ultrasonic flow meter suitable for various liquids and compatible with various pipeline materials.

Water Treatment

Food Industry

Pharmaceutical Industry

Metallurgical Industry

Public Drainage

Coal Industry

Technical Data

Clamp On Ultrasonic Flow Meter Parameters

Size	DN15-DN40 (1/2”- 1 1/2”)
Accuracy	±1% of measured value
Flow Range	±0.1m/s ~ ±5m/s
Fluid	Single medium liquid
Pipe Material	Metal / PVC, PP or PVDF rigid plastic pipe
Power Supply	10-24V VDC
Electric Power	< 3W
Data Storage period	300ms
Memory for data backup	EEPROM (Data storage: over 10 years, data read/write frequency: over 1 million times)
Protective circuit	Power reverse connection protection, Power surge protection Output short circuit protection, Output surge protection
Outputs	4-20mA, OCT (optional)
Communication	RS485
Power and IO connection	M12 type aviation plug
Medium Temperature	0-75℃
Humidity	35 to 85% RH (No condensation)
Vibration resistance	10~55Hz double amplitude 1.5 mm, 2 hours in each XYZ axis
Environment temperature	-10 to 60°C (No freezing)
Protection	IP65
Main material	Aluminum, Industrial Plastics
Cable Length	Signal cable 2m (standard) PT1000 sensor standard cable length 9m

Size Drawing (Unit: mm)

Parts

Clamp On Ultrasonic Flow Meter Dimension

QT811	Specification	Code
Type of Transmitter	Ultrasonic Flow Meter	1
Type of Transmitter	Ultrasonic Energy/Btu Meter	2
Output (Choose 2 out of 4)	4-20mA		A
	Modbus(RS485)		M
	OCT(Frequency)		O
	1 Relay		R
Temperature Sensor	Without PT1000 sensor			WT
	Another side cable length 9m			P
	Another side cable length 15m			P15
	Another side cable length 25m			P25

Installation

Try not to disturb the upstream flow distribution. Ensure no valves, elbows or triplets; try to install the control devices or throttles in the downstream if any, so as to ensure sufficient pipe flow at the measurement point, details are shown below: