This article provides a detailed user guide for the 2302 split-type submersible level transmitter, analyzing the complete process from installation to commissioning, helping purchasers and project managers quickly understand the measuring range, service life, and accuracy characteristics of YH802, YH801, T51A and other series products, and learn how to work in coordination with supporting instruments such as 2301.

I. Product Selection and Pre-installation Preparation

Before deploying the 2302 split-type submersible level transmitter, it is necessary to select a suitable model according to the actual operating conditions. The YH802 series is suitable for a measuring range of 0-100 meters water column, and its 316L stainless steel material can withstand highly corrosive media; while the T51A model, with its high accuracy of 0.1%FS, is especially suitable for pure water tank monitoring in the pharmaceutical industry. Before installation, check the interface compatibility of supporting instruments (such as the 2301 display controller), and prepare dedicated mounting brackets and sealing gaskets.

Key preparation work includes:

• Confirmation of the density and temperature parameters of the measured medium
• Verify whether the IP68 protection rating of products such as YH801 meets the on-site environment requirements
• Prepare a 24VDC regulated power supply and RS485 communication cable (if remote transmission is required)

II. Installation Specifications for the Split-type Structure

The probe part of the 2302 transmitter needs to be vertically fixed at the bottom of the container, and a counterweight is used to ensure that the sensor remains parallel to the liquid surface. The advantage of the split-type design is that the transmitter module can be installed in a safe area within 30 meters of the probe, with the specific steps as follows:

1. Use M20×1.5 thread or flange to secure the probe
2. When filling the capillary tube with silicone oil, all air bubbles must be removed (otherwise affecting the accuracy performance of the T51A model)
3. Avoid strong electromagnetic interference sources when routing cables

Note: The measuring diaphragm of YH802 needs to be cleaned regularly, especially in wastewater treatment applications where fouling should be checked quarterly.

2.1 Key Points for Electrical Connection

Use shielded twisted pair cable to connect the transmitter and the 2301 supporting instrument, and never reverse the positive and negative power supply terminals. If networked monitoring is required, it is recommended to use the MODBUS-RTU protocol, with the terminal resistor set to 120Ω. Key parameter comparison table:

III. On-site Commissioning and Error Calibration

Perform zero/span calibration through a HART communicator or the supporting instrument menu:

• Perform the "Zero Trim" zeroing operation under empty tank conditions
• Inject a known liquid level height (80% range is recommended) to set the range point
• Check whether the linearity error of the T51A model is ≤±0.05%

Common troubleshooting: If the YH802 shows signal fluctuation, check the waterproof performance of the cable connector; when the 2301 supporting instrument displays abnormally, the potentiometer parameters should be reissued.

3.1 Maintenance Recommendations for Extending Service Life

According to the durability test data of 100,000 pressure cycles for the YH801 product, it is recommended to:

1. Calibrate the diaphragm zero-point drift once a year
2. Check the O-ring every 6 months in corrosive media
3. Avoid instantaneous pressure exceeding 1.5 times the full scale

Professional Solutions Ensure System Stability

The 2302 split-type submersible level transmitter series of Xi'an Shenghongchuang Instrumentation Co., Ltd., through ISO9001-certified production processes and 72-hour aging tests, ensures reliable operation in harsh scenarios such as petrochemical and water treatment. Our engineering team can provide:

• Customized model selection services for YH802/YH801/T51A models
• System integration support for 2301 supporting instruments
• On-site calibration and fault diagnosis

Contact our technical consultants now to obtain the white paper Installation Specifications for Split-type Level Gauges, or schedule an on-site commissioning service.