UCB type static pressure liquid level meter (immersion type)

I. Product Overview
UCB series static pressure liquid level meter is based on the principle that the static pressure of the measured liquid is proportional to the height of the liquid. It uses the piezoresistive effect of diffused silicon or ceramic sensitive elements to convert the static pressure into an electrical signal, which is converted into a 4-20mADC standard current signal output after temperature compensation and linear correction. The sensor part of the liquid level meter can be directly immersed in the liquid, and the transmitter part can be fixed with a flange or a bracket, which is extremely convenient to install and use.
II. Main technical parameters
Measuring range: stainless steel rod type 0-5m, gas cable type 0-100m
Output signal: 4-20mA, HART optional
The accuracy level of the transmitter is divided into
0.1 level, basic error is ±0.1:
0.3 level, basic error is +0.3;
0.5 level, basic error is +0.5 (basic error is expressed as a percentage of the range). Thermal zero drift When the ambient temperature deviates from the reference working condition temperature, the zero drift of the transmitter should not be greater than 0.03%FS/C Thermal sensitivity drift When the ambient temperature deviates from the reference working condition temperature, the full scale drift of the transmitter should not be greater than 0.03%FS/℃ Insulation resistance Under the reference working conditions, the insulation resistance between each terminal of the transmitter to ground shall not be less than 20MΩ/250V.

Liquid level meter is an industrial instrument used to measure the height of liquid (or solid particles) in a container or equipment. Its core function is to monitor, control and protect the storage and transportation of materials in industrial processes in real time. The following is its specific function classification:

1. Core function
Liquid level monitoring
Real-time display of liquid/material height (such as tank oil level, boiler water level), providing intuitive liquid level data, avoiding errors and risks of manual measurement.
Process control
Through signal output (such as 4-20mA, switch quantity) linkage pumps, valves and other equipment to achieve automatic liquid replenishment, discharge or alarm (such as preventing overflow or dry burning).

Safety protection
Trigger interlock shutdown in dangerous working conditions (high pressure, high temperature, corrosive media) to ensure the safety of equipment and personnel.

Key factors in selection
Medium characteristics: corrosiveness, viscosity, conductivity (such as acid and alkali liquids require anti-corrosion materials).
Working conditions: pressure, temperature, explosion-proof requirements (such as ATEX certification required in the chemical industry).
Accuracy requirements: high accuracy (±1mm) is required for trade settlement, and general monitoring can be relaxed.
Example applications:

Inventory management of oil storage tanks (radar level gauge)
Level control of sterile tanks in the food industry (sanitary magnetic flap)
Dry running protection of sewage treatment pumps (float switch)