Split type ultrasonic flowmeter

Split type ultrasonic flowmeter

1. Product Overview:

Applied to online measurement of various liquid volume flow rates, the host and sensor are installed separately: the sensor is installed on the pipeline, the host is installed indoors or inside the instrument box, and the host and sensor are connected by ultrasonic dedicated cables. It is currently the most widely used ultrasonic flowmeter.

2. Technical features:

Large measurement range: By using different types of sensors, it is possible to measure the flow rate of pipelines with diameters ranging from DN15 to DN6000mm

High reliability: adopting low voltage and multi pulse transmission circuit, with high measurement accuracy, service life and reliability

Strong anti-interference ability: using dual balanced signal differential transmission and reception circuits, effectively resisting strong interference sources such as frequency converters, TV towers, and high-voltage lines

Powerful memory function: automatic memory of accumulated heat and flow for the previous 512 days, 128 months, and 10 years, as well as accumulated data for year, month, and day, all of which can be read out through the MODBUS protocol

Heat measurement: Equipped with a temperature sensor, it can achieve heat measurement

Principle

Ultrasonic Time Difference Principle, 4-byte IEEE754 Floating Point Operation

Accuracy

Flow rate: better than ± 1%

Display

Can connect 2 × 10 backlit Chinese characters or 2 × 20 character LCD displays, supporting three languages: Chinese, English, and Italian

signal output

1-channel 4-20mA current output, impedance 0-1K, accuracy 0.1%

1-channel OCT pulse output (pulse width 6-1000ms, default 200ms)

1 relay output

signal input

3-channel 4-20mA current input with an accuracy of 0.1%, capable of collecting signals such as temperature, pressure, liquid level, etc

Can be connected to a three wire PT100 platinum resistor to achieve heat measurement,

data interface

Isolated RS485 serial interface, flow meter can be upgraded through PC computer, supports MODBUS and other protocols

Special cable

Customized twisted pair cables, generally limited to 50 meters; Using RS485 communication, the transmission distance can reach over kilometers

pipeline condition

Pipe material

Steel, stainless steel, cast iron, cement pipe, copper PVC、 All dense pipelines such as aluminum and fiberglass are allowed to have lining

Inner diameter of the tube

15-6000mm

Straight pipe section

The installation point of the sensor should ideally meet the following requirements: upstream 10D, downstream 5D, and 30D from the pump outlet (D refers to the pipe diameter)

measuring medium

Types

Water, seawater, industrial wastewater, acidic and alkaline liquids, alcohol, beer, various oils, and other single and uniform liquids that can transmit ultrasonic waves

Temperature

Standard probe: -30~90 ℃, high temperature probe: -30~160 ℃

Turbidity

10000 ppm with low bubble content

Flow rate

0～±35 m/s

working environment

Temperature

Host: -20~60 ℃, flow sensor: -30 ℃~160 ℃

Humidity

Host: 85% RH; Flow sensor: capable of working in water with a depth of ≤ 2m (note: after the sensor is glued)

Power supply

DC8~36V or AC85~264V

Power consumption 1.5W