รายละเอียด:
-Introduction
1.1 Preface :-
Welcome to use new generation transit-time ultrasonic flow meter, please read the user manual
carefully before using. The wall-mount ultrasonic flow meter is designed to be installed in a fixed
location for long-term flow measurement.
1.2 Features :-
> Linearity: 0.5%, Repeatability: 0.2%, Accuracy:±1%
> Easy to operate.
> Several type transducers for selection, measuring pipe size is from DN15mm to DN6000mm
> Adopt low voltage, multi-pulse technology to improve accuracy, useful life and reliability.
> Powerful Recording Function, record the totalizer data of the last 64 days/64 monthes/5 years.
1.3 Flow measurement principle :-
The TUF-2000S ultrasonic flow meter is designed to measure the fluid velocity of liquid within a closed
conduit. The transducers are a non-contacting, clamp-on type, which will provide benefits of
non-fouling operation and easy installation.
The TUF-2000S transit-time flow meter utilizes two transducers that function as both ultrasonic
transmitters and receivers. The transducers are clamped on the outside of a closed pipe at a specific
distance from each other. The transducers can be mounted in V-method where the sound transverses
the pipe twice, or W-method where the sound transverses the pipe four times, or in Z-method where
the transducers are mounted on opposite sides of the pipe and the sound crosses the pipe once. This
selection of the mounting method depends on pipe and liquid characteristics. The flow meter operates
by alternately transmitting and receiving a frequency modulated burst of sound energy between the two
transducers and measuring the transit time that it takes for sound to travel between the two transducers.
The difference in the transit time measured is directly and exactly related to the velocity of the liquid in
the pipe, show as follows:
1.4 Optional transducer :-
> TS-1 clamp-on type transducer, pipe size from DN15-100mm
> TM-1 clamp-on type transducer, pipe size from DN50-1000mm
> TL-1 clamp-on type transducer, pipe size from DN300-6000mm
> HTS-1 clamp-on type transducer, pipe size from DN15-100mm
> HTM-1 clamp-on type transducer, pipe size from DN50-1000mm
1.5 Typical application :-
The wall-mounting flow meter can be applied to a wide range of pipe flow measurements. Applicable
liquids include pure liquids as well as liquid with small quantity of tiny particles.
Examples are:
> Water (hot water, chilled water, city water, sea water, waste water, etc.);
> Sewage with small particle content;
> Oil (crude oil, lubricating oil, diesel oil, fuel oil, etc.);
> Chemicals (alcohol, acids, etc.);
> Plant effluent;
> Beverage, liquid food;
> Ultra-pure liquids;
> Solvents and other liquids
1.6 Product Identification :-
Each set of the flow meter has a unique product identification number or ESN (electronic serial
number) written into the software that can only be modified with a special tool by the
manufacturer. In case of any hardware failure, please provide this number which is located on menu
window M61 when contacting the manufacturer
1.7 Specifications :-
1. Main unit
1.1 Accuracy : Better than ±1%
1.2 Repeatability : Better than 0.2%
1.3 Principle : Transit-time measuring principle
1.4 Measurement Period : 500ms
1.5 Display : LCD with backlight, display accumulated flow/heat, instantaneous flow/heat, velocity, time etc.
1.6 Output : Analogue output: 4-20mA or 0-20mA current output. Impedance 0? 1k&. Accuracy 0.1%., OCT output: Frequency signal (1~9999HZ), Relay output: over 20 source signal (no signal, reverse flow etc.), RS485 serial port
1.7 Input : Three analogue input, Three-wire PT100 resistor input (optional)
1.8 Other functions : Automatically record the totaliser data of the last 64 days / 64 months / 5 years; The power-on time and corresponding flow rate of the last 64 power on and off events. Allow manual or automatic flow loss compensation The instrument working status of the last 64 days
2. pipe
2.1 material : Steel, stainless steel, cast iron, cement pipe, copper, PVC, aluminum, FRP etc. Liner is allowed
2.2 Size : 15-6000 mm.
2.3 Straight pipe section : In the upstream it must be beyond 10D, in the downstream it must be beyond 5D, in the upstream the length must be beyond 30D from the access of the pump. (D stands for pipe diameter)
3. Liquid
3.1 Types : Water, sea water, industrial sewage, acid & alkali liquid, alcohol, beer, all kinds of oils which can transmit ultrasonic single uniform liquid
3.2 Temperature : Standard: -30?C - 90?C ,High-temperature:-30?C - 160?C
3.3 Turbidity : Less than 10000ppm, with a little bubble
3.4 Flow Direction : Bi-directional measuring, net flow/heat measuring
4. Environment
4.1 Temperature : Main Unit: -30?C - 80?C, Transducer: -40 ? -110 ? , Temperature transducer: select on
enquiry,
4.2 Humidity : Main Unit: 85% RH, Transducer: water-immersible, water depth less than 3 m.
5. Cable : Twisted Pair Line, standard length of 20m, can be extended to 500m (not recommended); Contact the manufacturer for longer cable requirement. RS-485 interface, transmission distance up to 1000m
6. Power Supply : AC220V or DC24V
7. Power Consumption : Less than 1.5 W.
8. Protocols : MODBUS, M-BUS, Fuji extended protocol and other factory protocol
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