Introduction

As a key measurement device used in strong acid and strong alkali environments, the installation quality of the DMU09 corrosion-resistant submersible level transmitter directly affects its service life and measurement accuracy. This article provides an in-depth analysis of 3 common technical mistakes in the installation process of ceramic corrosion-resistant level sensors, helping technical evaluation personnel avoid sensor failure caused by improper installation and ensuring the stable operation of high-temperature guided pressure level transmitters such as HD-136P and SLDTB-802GW under demanding working conditions.

Mistake 1: Improper Installation Location Selection

When installing the DMU09 corrosion-resistant submersible level transmitter, the choice of installation location is crucial. Many technical evaluation personnel often overlook this point, resulting in reduced measurement accuracy or even equipment damage.

Common Issues

• Near agitators or pump outlets: Strong fluid disturbance can cause unstable measurement signals and affect accuracy.
• Areas with severe level fluctuation: For example, near the inlet of a reaction tank, frequent liquid level fluctuations can cause frequent sensor recalibration.
• Sediment accumulation areas: For example, at the bottom of a storage tank, sediment may cover the sensor diaphragm and affect measurement.

Solution

It is recommended to select the following installation locations:

• A position at least 1.5 tank diameters away from the agitator
• A stable liquid surface area far from the inlet and outlet
• A position at least 10cm above the tank bottom to avoid the impact of sediment

Mistake 2: Improper Cable Sealing Treatment

The cable sealing of the DMU09 corrosion-resistant submersible level transmitter is key to ensuring long-term stable operation. Many installers encounter the following problems when handling cable sealing:

Common Issues

• Improper use of sealant: Using ordinary sealant instead of dedicated corrosion-resistant sealant
• Loose cable fixing: Failure to use a dedicated cable gland, resulting in loosening after long-term use
• Incomplete cleaning of the sealing surface: Residual contaminants on the sealing surface affect the sealing performance

Solution

The correct cable sealing steps should include:

1. Use dedicated corrosion-resistant sealant (such as PTFE-based sealant)
2. Ensure the tightening torque of the cable gland reaches 5-7N·m
3. Clean the sealing surface with isopropyl alcohol before installation
4. Conduct a 24-hour airtightness test (no leakage under 0.5MPa pressure)

Mistake 3: Incorrect Calibration Method

Calibration is a key step in ensuring the measurement accuracy of the DMU09 corrosion-resistant submersible level transmitter. Common calibration mistakes include:

Common Issues

• Failure to consider changes in medium density: Especially the density differences of strong acid and strong alkali solutions at different concentrations
• Too few calibration points: Only zero point and full-scale two-point calibration is performed
• No temperature compensation performed: Ignoring the effect of medium temperature on measurement

Solution

It is recommended to adopt the following calibration method:

Summary and Call to Action

By avoiding the above three common installation mistakes, the measurement accuracy and service life of the DMU09 corrosion-resistant submersible level transmitter can be significantly improved. As a professional high-tech enterprise, Xi'an Shenghongchuang Instrumentation Co., Ltd. provides a full range of level measurement solutions, from the HD-136P high-temperature guided pressure level transmitter to SLDTB-802GW and other series, and all products have passed ISO9001 quality management system certification.

If you would like to learn more technical details about corrosion-resistant submersible level transmitters such as KC803, YM-LSYW, and CKY-211, or obtain professional installation guidance, please contact our technical team immediately. We will provide you with professional solutions and technical support.