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 months/5 years.
1.3 Flow measurement principle
The KUF2000 series 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 KUF2000 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:
Where
θ is the include angle to the flow direction
M is the travel times of the ultrasonic beam
D is the pipe diameter
Tup is the time for the beam from upstream transducer to the
downstream one
Tdown is the time for the beam from downstream transducer to the
upstream one
ΔT=Tup –Tdown
1.4 Optional transducer
◆ TS-1 clamp-on type transducer, pipe size from DN15-100mm
◆ TM-1 clamp-on type transducer, pipe size from DN50-700mm
◆ 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 DN50-700mm
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.
| Items | Specifications |
| Main unit | Accuracy | Better than ±1% |
| Repeatability | Better than 0.2% |
| Principle | Transit-time measuring principle |
Measurement Period | 500ms |
| Display | LCD with backlight, display accumulated flow/heat, instantaneous
flow/heat, velocity, time etc. |
| Output | Analogue output: 4-20mA or 0-20mA current output. Impedance 0∼1kW.
Accuracy 0.1%. |
| OCT output: Frequency signal (1~9999HZ) |
| Relay output: over 20 source signal (no signal, reverse flow etc.) |
| RS485 serial port |
| Input | Three analogue input |
| Three-wire PT100 resistor input (optional) |
| 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 |
| pipe | material | Steel, stainless steel, cast iron, cement pipe, copper, PVC,
aluminum, FRP etc. Liner is allowed |
| Size | 15-6000mm |
| 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) |
| Liquid | Types | Water, sea water, industrial sewage, acid & alkali liquid, alcohol,
beer, all kinds of oils which can transmit ultrasonic single
uniform liquid |
| Temperature | Standard: -30˚C - 90˚C ,High-temperature:-30˚C - 160˚C |
| Turbidity | Less than 10000ppm, with a little bubble |
| Flow Direction | Bi-directional measuring, net flow/heat measuring |
| Environment | Temperature | Main Unit: -30˚C - 80˚C |
| Transducer: -40℃ -110℃, Temperature transducer: select on enquiry |
| Humidity | Main Unit: 85% RH |
| Transducer: water-immersible, water depth less than 3m |
| 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 |
| Power Supply | AC220V or DC24V |
| Power Consumption | Less than 1.5W |
| Protocols | MODBUS, M-BUS, Fuji extended protocol and other factory protocol |
