Ultrasonic liquid level difference meter

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Ultrasonic liquid level meter contains a number of patented technology research, has a new signal pr…

1, an overview of the

Ultrasonic liquid level meter contains a number of patented technology research, has a new signal processing technology, with a safe, clean, high precision, long service life, stable and reliable, easy installation and maintenance, and simplicity of readings and other characteristics, widely used in petroleum, chemical industry, water treatment, water conservancy, steel, coal, electricity and food processing and other industries, applicable to acid, alkali, salt, anti-corrosion, high temperature, explosion-proof and other fields.

This instrument can be connected to a variety of DCS systems through the 4-20ma or RS485 (Modbus protocol), which provides real-time liquid level data for the automation of industry.

Ultrasonic liquid level difference meter has the following characteristics:

security

The waterproof, explosion-proof case of aluminum alloy aluminum alloy. Instrument of explosion-proof level Ex d (ia) Ⅱ BT4.

L is stable and reliable

When we are in the circuit design since the power part selects the high quality module, key components purchasing to select high stable and reliable device, can completely replace imported instrument directly.

Patent technology

A patented sound wave intelligent technology software can be used for intelligent echo analysis

How to debug and other special procedures, this technique has the function of dynamic thinking and dynamic analysis.

L high precision

My company has a sound intelligent patent technology, make the LHM - H - Y type ultrasonic liquid level meter accuracy is greatly increased, liquid level accuracy reached 0.3%, can be all kinds of interference wave.

The failure rate is low, easy to install and easy to maintain

This instrument is a non-contact instrument, which is not in direct contact with the liquid, therefore the failure rate is lower. The instrument provides a variety of installations, and the user is able to calibrate the instrument through this manual.

L a variety of protective

The level of protection of the instrument reached IP65; All input and output lines are protected by lightning protection and short circuit protection.

When editing the relay logic, the flash number is the current variable number. Click on the TAB/button, the number will change, and the click OK key will move to the next number.

The logic of the relay is made up of "A, numerical 1, B, C, and numerical 2". Among them

A and numerical 1, which constitute the first condition of the relay absorption; C and the number two, which make up the second condition for the relay.

The l A can choose "greater than >" and "less than <".

L B position can choose "&", or "|", "N" unconditionally, "conditional ^" four kinds of symbols.

The l C can choose "greater than >" and "less than <".

The value of 1 and 2 can be entered into the liquid level of the probe, or the difference of the liquid.

Here is a key explanation of the symbols on position B.

When the l symbol chooses "&", it means that when the liquid level value (the liquid level difference) satisfies the two conditions, the relay is applied

The device is sucked in, otherwise the relay is open.

When the l symbol chooses "|", it means that when the liquid level value (the liquid level difference) satisfies the two conditions

The relay is closed at any time, otherwise the relay is open.

When the l symbol selects "N", the position C and the value 2 are hidden. This is the value of the liquid

The relay is opened by a relay when the first condition is met.

L chose "^" symbol, said when the liquid level value (liquid level difference) to satisfy the first condition

Electrical absorption is opened when the liquid level satisfies two conditions.