China Petrochemical Sales Co., Ltd. Fire Water Pool Level Solution

System Requirements Analysis
According to the trial version 4.2.2, Article 4, and 4.2.3, Article 9 of the "Regulations for the Quality Inspection and Evaluation of Fire Protection Facility Installation in China (DB37/242-2008)", the water level of the fire water pool and the high-level fire water tank should be displayed in the fire control room. According to fire regulations, it is crucial to ensure that the fire water pool and the high-level fire water tank are full and that the level can be remotely monitored in the control room. If the fire control room does not have a level indicator for the fire water pool and high-level fire water tank, it may fail the building fire protection facility installation quality inspection and acceptance according to fire regulations. Therefore, it is necessary to monitor the real-time water level of the fire water pool and tank in the fire control room, which requires the use of the WH311 fire water tank level display.

System Overview
The WH311 level sensor probe is directly placed at the bottom of the user's fire water pool or tank. The WH6 dedicated fire level display is installed in the fire control room, connected by a 2*1.5 square shielded cable. It displays the actual fire water level in real-time and has a built-in high and low level alarm system to ensure that the fire water level remains high.

Application Challenges:
1. Electromagnetic interference exists in the monitoring scene.
2. Requires stable and accurate product operation.

Solution Advantages:
  1. Provides various product solutions to meet different operating conditions.
  2. Customizable products to meet complex operating conditions.
  3. Excellent product quality, high precision, high stability, and high protection level.

Project Key Points Analysis:
1. Three outdoor water pools, approximately 4 meters in height;
2. The water level signal needs to be transmitted 30 meters to the control room for display, using an anti-interference design for long-distance transmission;
3. Requires not only real-time level display but also intuitive percentage light column indication of the fire water pool water level, and high and low level alarms.

Project Composition:
The WH311 with a 0-5 meter range is selected, using a triple lightning protection module. A 35-meter cable is directly connected to the control room. The control room is equipped with a WH6-T light column level display, which displays the water level in real-time and has high and low level alarms. The light column simulates the percentage display of the water pool water level. If data recording or secondary signal transmission to the PLC is required, the WH6-T intelligent light column display also reserves a 4-20 milliamp output module.

On-site Pictures