Hand Held Ultrasonic flow Meters
TDS-100H Ultrasonic Flow Meters
Portable Flow Meters
Typical Applications
TDS-100H Ultrasonic Flow Meters
Portable Flow Meters
The TDS-100H 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 TDS-100H transit time ultrasonic 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 ultrasonic hand held 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.
The ultrasonic hand held 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.
TDS series Handheld Ultrasonic Flow Meters are based on clamp-on transit-time flow measurement principle.
It measures the flow rate of liquid in a pipe from outside of the pipe
by using a pair of ultrasonic transducers. In general, the liquid should
be full in the pipe, and should contain very little particles or
bubbles. It is applicable for water (hot water, chill water, city water,
sea water, etc.); sewage; oil (crude oil, lubricating oil, diesel oil,
fuel oil, etc.); chemicals (alcohol, acids, etc.); waste; beverage and
liquid food, solvents and other liquids. TDS-100H handheld ultrasonic flow meter is a battery-powered ultrasonic flow meter with the capability of a full-size flow meter. It is carefully designed for portability and ease of use.
TDS-100H portable type ultrasonic flow meter adopts
built-in chargeable nickel-hydrogen batteries, which can work for about
20 hour after fully charged. It adopts intelligence charging method.
The operator should insert one end of the configured power wire into the
AC 220V port of the right side of the machine, and inserts the other
end into the electrical outlet (AC 220V), and then the charging
operation could be finished. After connecting the wires, the red light
on the keyboard of the machine will glitter , which means it’ s
charging. When it is fully charged, the red light will turn to green.
Then the operator can pull out the wires and put away for nest use.
Technical Specification:Linearity | : 0.5% |
Repeatability | : 0.2% |
Accuracy | : ±1% of reading at rates>0.2 mps |
Response Time | : 0-999 seconds, user-configurable |
Velocity | : ±32 m/s |
Pipe Size | : 20mm-6000mm |
Rate Units | : Meter, Feet, Cubic Meter, Liter, Cubic Feet, USA Gallon, Imperial Gallon, Oil Barrel, USA Liquid Barrel, Imperial Liquid Barrel, Million USA Gallons. User configurable. |
Totalizer | : 7-digit totals for net, positive and negative flow respectively |
Liquid Types | : Virtually all liquids |
Security | : Setup values Modification Lockout. Access code needs unlocking |
Display | : 4x16 English letters |
Communication Interface | : RS-232C, baud-rate: from 75 to 57600. Protocol made by the manufacturer and compatible with that of the FUJI ultrasonic flow meter. User protocols can be made on enquiry. |
Transducers | : Model M1 for standard, other 3 models for optional |
Transducer Cord Length | : Standard 2x10 meters, optional 2x 500 meters |
Power Supply | : 3 AAA Ni-H built-in batteries. When fully recharged it will last over 10 hours of operation.100V-240VAC for the charger |
Data Logger | : Built-in data logger can store over 2000 lines of data |
Manual Totalizer | : 7-digit press-key-to-go totalizer for calibration |
Housing Material | : ABS |
Case Size | : 100x66x20mm |
Handset Weight | : 514g (1.2 lbs) with batteries |
Typical Applications
The TDS-100H portable ultrasonic flow meter can be virtually applied to a wide range of measurements.
The measured pipe ranges 20-6000 mm [0.5 - 200 inch]. A variety of
liquid applications can be accommodated: ultra-pure liquids, potable
water, chemicals, raw sewage, reclaimed water, cooling water, river
water, plant effluent, etc. Because the instrument and transducers are
non-contacting and have no moving parts, the ultrasonic flow meter can
not be affected by system pressure, fouling or wear. Standard
transducers are rated to 110 ºC. Higher temperatures can be
accommodated. For further information, please consult the manufacturer
for assistance.
Data Integrity and Built-in Time-Keeper
All
user-inputted configuration values are retained in the built-in
non-volatile flash memory that can store them for over 10 years, even if
power is lost or turned off. Password protection is provided to avoid
inadvertent configuration changes or totalizer resets. A time-keeper is
integrated in the ultrasonic flow meters for the index of date totalizing and works as the time base of flow accumulation. The Ultrasonic flow meters
keeps operating as long as the battery’s terminal voltage is over 1.5V.
In case of battery failure, the time-keeper will not keep running and
it will lose proper time values. The user must re-enter proper time
values in case the battery becomes totally exhausted. An improper time
value affects no other functions but the date totalizer.