Liquid Ultrasonic Clamp-on Flowmeter for Corrosive Fluids
I. Introduction
ML-6100S is a kind of wall mounted clamping ultrasonic flowmeter,
which adopts time difference technology. The transmission is
designed by FPGA chip and low voltage wideband pulse. Two pinch -
mounted sensors and plug - in sensors are available. The ML-6100S
has a 240*128 backlit LCD, 4-line menu display, and a clear,
user-friendly menu selection that makes the flowmeter simpler and
easier to use daily, monthly to annual accumulator. Parallel
operation of positive, negative and net flow integrators with scale
factor (SPAN) and BTU capacity. The accumulator pulse output and
frequency output are transmitted by relay and collector open
circuit
II. Working Principle
The external clamp type or pipe segment ultrasonic flow meter is an
instrument for measuring liquid flow in a circular tube based on
the principle of "velocity difference method".
It adopts advanced multi-pulse technology, signal digital
processing technology and error correction technology, so that the
flow meter can better adapt to the environment of the industrial
field, and the measurement is more convenient, economical and
accurate.
The products have reached the advanced level at home and abroad,
and can be widely used in petroleum, chemical industry, metallurgy,
electric power, water supply and drainage and other fields.
III. Specification
| Performance |
| Velocity Range | ±0.09ft/s ~ ±39ft/s (±0.03m/s ~ ±12m/s) |
| Accuracy | ±1% of measured value |
| Repeatability | 0.2% of measured value |
| Linearity | ±1% |
| Pipe Size | DN25~DN1200(A pair of sensors) |
| Function |
| Output | Analog output: 4~20mA, max load 750Ω. |
| Pulse output: 0~10KHz |
| Communication | RS232/RS485 Modbus |
| Power Supply | 10~36VDC/AC90~245V |
| Display | 240*128 back lit LCD |
| Temperature | Transmitter: -14℉~140℉(-20℃~60℃) |
| Transducer:-40℉~176℉(-40℃~80℃,TT01) |
| Transducer:-40℉~266℉(-40℃~130℃,TT03) |
| Humidity | Up to 99% RH,non-condensing |
| Physical |
| Transmitter | PC/ABS,IP65 |
| Transducer | Encapsulated design,IP68 |
| Double-shielded transducer cable |
| Standard/maximum cable length:30ft/1000ft(9m/300m) |
IV. Configuration
| Model | Transmitter |
| ML-6100S | Wall-mounted Type |
| Velocity Range:±0.09ft/s ~ ±39ft/s (±0.03m/s ~ ±12m/s) |
| Accuracy :±1% of the measure value |
| Repeatability:0.2% of the measure value |
| Display:240*128 back lit LCD |
| Power Supply: 10~36VDC/AC90~245V |
| Transmitter Enclosure: IP65, ABS (Temperature: -20℃~50℃) |
| Output: OCT pulse output 0-10KHz, Relay output, 4-20mA for option |
| Communication: RS232,RS485 |
| Code | Output |
| 1 | OCT,Relay,RS232/RS485,4-20mA |
| 2 | OCT,Relay,RS232/RS485,4-20mA, RTD |
| Code | Transducer |
| TT01 | Clamp-on, IP68. Operating temperature:-40 ℉ ~ +176 ℉(-40℃ ~ +80 ℃) |
| TT03 | Clamp-on, IP68. Operating temperature:-40 ℉ ~ +266℉(-40℃ ~ +130 ℃) |
| TT05 | Insertion, IP68. Operating temperature:-40 ℉ ~ +266 ℉(-40℃ ~ +130
℃) |
| Code | Transducer Cable Length |
| 030 | Standard length 30ft (9m) |
| XXX | Max length to 1000ft (300m) |
| Code | Temperature Transducer |
| PT1000 | PT1000 temperature transducer+RTD module(option) |
| Code | Data Logger |
| SD | SD card(8G)+ SD card module(option) |
Standard model: ML-6100S-1-TT01-030
Description: Standard clamp-on type ultrasonic flow meter, OCT,
Relay,
RS485, 4-20mA, 30ft cable with TT01 transducers
V. Installation Site Selection
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 follow installation position.
The suggestion installation area is as following:
A is for upright pipeline, please notice the water direction is
from the bottom to top.
B is for horizontal pipeline, the transducers need to be installed
inside the C area,angle for area C, max 120°
