1. High-Precision Chemical Flow Control and Monitoring
Using the 4-20 mA current inputs on the DRT2-AD04H connected to chemical flow meters, engineers can transmit analog rate data over a DeviceNet network to a central controller. The 1/30,000 high-resolution A/D conversion provides ultra-precise flow readings, which is critical for dosing applications.
Problem SolvedStandard low-resolution analog cards (e.g., 1/6,000) introduce rounding errors in dosing systems. The 15-bit resolution (1/30,000) of the DRT2-AD04H ensures precise chemical quantities are measured, minimizing waste and maintaining exact mixture ratios.
4-20 mA current input15-bit A/D resolutionDeviceNet communicationdosing control
2. Industrial Furnace Temperature Tracking & Alarm Monitoring
By utilizing the 0-10 V analog input signals from temperature transmitters across four points of a thermal processing furnace, the DRT2-AD04H tracks process parameters. Local processing via its built-in comparator and peak/bottom hold functions allows instant thermal limit alerts directly from the slave device without lagging network communications.
Problem SolvedHeavy network traffic on older fieldbuses can cause delay in emergency stop triggers. By using the on-board comparator and peak/bottom hold limits of the Smart Slave terminal, critical thermal limits are detected locally at the terminal, protecting equipment from thermal overrun.
0-10 V voltage inputpeak/bottom holdcomparator functionpredictive maintenance
3. Hydraulic Cylinder Pressure Transducers Signal Acquisition
This application monitors high-pressure hydraulic lines in stamping presses using pressure transducers outputting 1 to 5 V signals. The -10°C to 55°C temperature tolerance and high vibration resistance (0.7-mm double amplitude, 10-150 Hz) allow the terminal to be cabinet-mounted directly on the heavy-machinery floor.
Problem SolvedHigh vibration environments can disrupt standard electronic connections or cause measurement errors. The DRT2-AD04H's high-vibration and shock-resistant design, combined with M3 screw terminals, prevents signal loss and mechanical failures.
1 to 5 V inputvibration resistancescrew terminalshydraulic pressure monitoring
