Position :
Wall Mounted Ultrasonic Flow Meter
Wall Mounted Ultrasonic Flow Meter
Wall Mounted Ultrasonic Flow Meter
Wall Mounted Ultrasonic Flow Meter

Wall Mounted Ultrasonic Flow Meter

Pipe Size: DN25-DN1200mm (1”~48”)
Flow Range: ±0.03m/s ~±5m/s
Temperature: -40℃~80℃ (standard)
Accuracy:  ±1% of measured value
Power Supply: DC10-36V
Technical Data
QT502 ultrasonic flow meter is a wall-mount, clamp-on or insertion type ultrasonic flow meter using transit-time technology. Both Clamp on type sensors and Insertion type sensors are available. New designed using advanced chip and low-voltage broadband pulse transmission, ensure flow meter with high accuracy and repeatability for long term operation.
Comparing with other traditional flow meter, QT502 ultrasonic flow meter has distinctive features such as high precision, high reliability and high capability.
QT502 ultrasonic flow meter adopt user-friendly menu design. British and metric measurement units are available. Support to check total flow for the last 64days and months as well as for the last 6 years. With SD card function optional, ultrasonic flow meter could achieve data storage for analysis.
QT502 ultrasonic flowmeter is widely applied in HVAC, water treatment, irrigation.
Water Treatment
Water Treatment
Food Industry
Food Industry
Pharmaceutical Industry
Pharmaceutical Industry
Metallurgical Industry
Metallurgical Industry
Public Drainage
Public Drainage
Technical Data

Wall Mounted Ultrasonic Flow Meter Parameters

Size DN25-DN1200mm (1”-48”)
Under 1” could be specially make as an option
Accuracy ±1% of measured value
Flow Range ±0.09ft/s ~ ±16ft/s (±0.03m/s ~ ±5m/s)
Fluid Single medium liquid
Pipe Material Carbon steel, stainless steel, PVC and other compact material pipe
Power Supply 10~36VDC/1A
Outputs Analog output: 4~20mA, max load 750Ω
Pulse output: 0~10KHz
Communication RS485
Temperature Transmitter: -14℉~140℉(-20℃~60℃)
Transducer: -40℉~176℉(-40℃~80℃,standard)
Humidity Up to 99% RH,non-condensing
Protection Transmitter: PC/ABS, IP65
Transducer: ABS, IP68 
Cable 9m (standard), Longer cable available

Wall Mounted Ultrasonic Flow Meter Dimension

Wall Mounted Ultrasonic Flow Meter Model Selection

QT502 Specification X X X X X X
Signal OCT, Relay, RS-232/RS- 485, 4-20 mA (Volumetric) 1          
OCT, Relay, RS-232/RS- 485, 4-20 mA, RTD input (Energy)
*must select Code PT1000 or provide external temperature sensors
Type of transducers Clamp-on, IP68. Operating temperature: -40℉ ~ +176℉(-40℃ ~ +80℃) CD01
Clamp-on, IP68. 2MHz Pipe size DN15 to DN25 only
Operating temperature: 32℉~140℉(0℃ ~ +60℃)
Clamp-on, IP68. Operating temperature: -40℉ ~ +266℉(-40℃ ~ +130℃) C1U
Insertion, IP68. Operating temperature: -40℉ ~ +266℉(-40℃ ~ +130℃) W1
Cable length 9m (standard) P9
5m (standard for C2 only) P5
XXm (max 274m) PXX
Temperature Sensor
(BTU meter only)
Without a pair of clamp on PT1000 sensor 9m WT
With a pair of clamp on PT1000 sensor 9m WA
Power Supply DC10-36V DC
Special Function None N
AC power,90-245VAC AC
SD Card SD

The first condition for ultrasonic flow meter is the pipe must be full of liquid, the bubbles will greatly influence the accuracy of the measurement, please avoid the following installation positions:
Send Your Inquiry
Exported to more than 150 countries around the globe, 10000 sets/month production capacity!
Copyright © Q&T Instrument Co., Ltd. All Rights Reserved.
Support: Coverweb