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~A new Low cost ultrasonic flow meter is the latest innovation from Teren, It employs cutting-edge technologies on ultrasonic transit-time measurement, digital signal processing and surface mounting electronics. It provides abundant capabilities for accurate liquid flow measurement from outside of a pipe. The proprietary signal quality tracking and self-adapting techniques allow the system to optimally adapt to different pipe materials automatically

Low cost ultrasonic flow meter can be equipped with an optional LCD display /key board module. The users can either users can either use the RS-485 interface or the display /keyboard interface to program the flow meter.

The transducer installation is also simple and no special skills or tools are required.

Due to the non-intrusive nature of the clamp-on technology, there is no pressure drop, no moving parts, no leaks, no risk of contamination, no risk of corrosion, no pressure dependency.

Low cost ultrasonic flow meter is designed for large quantity, low cost applications. Its unique features, particularly very low cost ,very high performance and very small size ,make it the ideal choice for industrial automation, processing control, water source management, flow meter networking and OEM applications

Accuracy

Better than ±1% for velocity above 0.6ft/s

Repeatability

Better than 0.2%

Response Time

0.5s

Velocity

0-32m/s

Display /Keyboard

Optional. LCD with backlight. 2×20 letters.

Display instantaneous flow rate, accumulated flow rate

(positive, negative and net rates), velocity, time, analog inputs, ect.

Signal Input

Current input: 4-20mA.,0.1% accuracy. Can be used for signals

such as temperature, pressure, liquid level, ect.

Signal Output

Current output: 4-20m A . Impedance 0-1k, Accuracy 0.1%

OCT output: two channels. Can be programmed as pulse signal

for accumulated flow rate (positive, negative and net rates);

frequency signal for instantaneous flow rate;

ON/OFF signal for relay drive or alarm drive; batch control

Communication Interface

RS-232 and RS-485 (note: can not be activated simultaneously)

Recording

Automatically record the following information:

l         The totalizer data of the last 64 days/64 months;

l         The time and corresponding flow rate of the last 64 times of

power on and off events. Allow manual or automatic

flow loss compensation

l         The instrument working status of the last 128 days

Powder

12VDC~24VDC

Can be customized to 12VDC or 5VDC

Liquid Types

Virtually all commonly used liquids (full pipe)

Liquid Temp

0℃~100℃

Liquid  Suspension concentration

＜20.000ppm, or ,＜2%, particle size smaller than 100um.

Pipe Size

DN25~DN6,000mm (1’’~240’’)

Pipe Material

All metals, most plastics, fiber glass, ect. Allow pipe liner

Straight  Pipe Section

Longer than 15D, where D is pipe diameter. If a pump is near,

the straight pipe section following the pump should be ＞30D

Cable

Shielded transducer cable. Standard length 5m (15’),

Can be extended to (500m) 1640’. Contact the manufacturer

for longer cable requirement.

Cable should not be laid in parallel with high-voltage power line,

neither should it be close to strong interference source

such as power transformers

Dimension

90×90×37mm

Weight

110g