RS485 Ultrasonic Flow Meter
RS485 Ultrasonic Flow Meter Sensor With High Temperature Up To 130C
I. Introduction
ML-6100S is a wall-mount, clamp- on type ultrasonic flow meter which uses the transit-time technology. Designed using FPGA chip and low-voltage broadband pulse transmission.Both clamp on type sensors and insertion type sensors are available.
ML-6100S has a 240*128 back lit LCD with 4 line menu display and also the clear,user-friendly menu selections make flow meter more simple and convenient to use.Daily, monthly yearly totalizer. Parallel operation of positive, negative and net flow totalizer with scale factor (span) and BTUcapacity. While the output of totalizer pulse and frequency output are transmitted via relay and open collector.
- External clamping flow meter sensor, simple and convenient installation, high flexibility
- Integrated design and manufacturing, the true meaning of IP68 waterproof
- Hidden pipe design, more beautiful after installation
ML-6100S can be used in conjunction with the RTD module and the PT1000 temperature sensor to become an energy meter for measuring the heat and cold consumption of heating pipelines and air-conditioning refrigeration pipelines;
The PT1000 uses high-temperature resistance lines, imported movements,and its sensitivity and working conditions durability are much higher than those of domestic PT100.
II. Working Principle
The external clamping or pipe type ultrasonic flow meter is an instrument to measure the liquid flow in the circular tube on the principle of speed difference method. It adopts advanced multi-pulse technology, signal digital processing technology and error correction technology, so that the flow meter can adapt to the environment of industrial site more conveniently, economically and accurately. Products reach the advanced level at home and abroad, can be widely used in petroleum, chemical, metallurgy, electricity, 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°
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