ESMTUF2000M Rail-mounted ultrasonic flow meter module for 10~30V
Working Principle
The time-difference method is usually used, where an external clamp-on sensor emits and receives ultrasonic waves, measures the difference in propagation time of the ultrasonic waves in the fluid in the downstream and upstream directions, and then calculates the fluid flow velocity. Combined with parameters such as the pipe's cross-sectional area, the flow rate can be determined.
Sensor module: Responsible for transmitting and receiving ultrasonic signals, usually divided into clip-on, insertion, or inline types.
Processing/Transmitting module: Responsible for signal amplification, filtering, flow calculation, total accumulation, and output of standard signals (4-20mA, Pulse, RS485/Modbus, etc.).
Display: DIN rail mounted display module
Product Features
- The main unit uses rail-mounted installation, and the sensor uses external clamp installation.
- No pipe cutting required, installation is convenient and quick.
- Standard output is 4-20mA, with RS485 communication.
- Small in size and light in weight.
Product detail

Technical Specifications
|
|
Host |
sensor |
|
Protection level |
IP65 |
IP68 |
|
humidity |
≤80%RH |
|
|
temperature |
-20~60℃ |
-30~160℃ |
|
Precision |
±1% |
|
|
Flow rate range |
0~±10m/s, forward and reverse measurement |
|
|
Pipe diameter |
Dn15~dn600 |
|
|
Fluid temperature |
-30~160℃ |
|
|
Fluid type |
Water, sea water, sewage, acid and alkali, alcohol, beer, various oils, etc. |
|
|
Pipe material |
Steel, stainless steel, cast iron, copper, PVC, aluminum, fiberglass and other dense pipes, allowing lining |
|
|
Signal output |
1 channel 4~20mA current output impedance 0~1KΩ, accuracy 0.1% 1 channel OCT pulse output pulse width 6~1000ms 1 relay output |
|
|
signal input |
3 channels of 4~20mA current input, can be used as data collector Connect a three-wire pt100 platinum resistor for thermal measurement |
|
|
Communication Interface |
Isolated RS485 serial interface, support Modbus protocol |
|
|
Power supply |
DC8~36V or 10~30V |
|














