High-Temperature Exhaust Monitoring Solution for Paper Drying Processes

DB441-PL: Reliable Measurement in 200°C High-Temperature Dust Environments

In paper manufacturing, the drying section is one of the most critical and energy-intensive stages. The exhaust ducts inside drying hoods often face high temperatures, saturated humidity, and dust/fiber contamination, making conventional sensors unsuitable for long-term operation.

However, accurate temperature and humidity monitoring is essential for optimizing drying efficiency, reducing energy consumption, and maintaining stable paper quality.

To meet these challenges, DABECO DB441-PL High-Temperature Humidity & Temperature Transmitter is specially designed for paper drying applications.

Designed for 200°C High-Temperature Operation

The DB441-PL uses a high-precision imported capacitive humidity sensor with special protection technology, enabling stable operation up to 200°C.

It can be directly installed in dryer exhaust ducts to provide reliable real-time data even under harsh conditions.

For environments with dust and fiber particles, the transmitter features a dual-layer stainless-steel dust protection structure, improving durability and ensuring long-term measurement stability.

Customized Outputs for Paper Drying Control

Unlike conventional transmitters that only provide temperature and humidity signals, the DB441-PL is optimized for paper drying process control.

Standard outputs:

Temperature + Relative Humidity
Dual 4–20 mA outputs
RS485 Modbus RTU communication

Customized humidity parameters:

Humidity ratio: 0–300 g/kg or 0–500 g/kg
Absolute humidity: 0–200 g/m³, 0–500 g/m³, or 0–700 g/m³

These parameters help operators optimize airflow balance, improve heat recovery efficiency, reduce steam consumption, and prevent quality issues such as wrinkles and water marks.

Your Reliable “Sentinel” for Paper Drying

From high-speed paper machine hood exhaust monitoring to dryer air duct control, the DB441-PL provides accurate, stable, and customized humidity measurement solutions for the entire paper drying process.

With 200°C high-temperature resistance, dust protection, high accuracy, and long-term stability, DB441-PL helps paper manufacturers achieve smarter, greener, and more efficient production.