The ATM420-Dual strikes the ideal balance between simplicity and control. Designed for spaces with two critical pressure zones, the system offers dual real-time differential readings at a glance. Medical and technical staff can instantly verify both room conditions, while integrated alarms help prevent unnoticed deviations.
A differential pressure transmitter has two pressure connection ports, allowing it to measure the pressure difference between two spaces—such as between a corridor and an airlock, or a corridor and a patient room. The ATM420-Dual displays two differential pressure value clearly on the screen. The standard measuring range is -50 to +50 Pa, which is suitable for most applications such as isolation rooms, cleanrooms, and operating rooms.
Through the configuration menu, you can assign a custom label above the measured value, making it easy to identify which room or area is being monitored. You can also set low and high alarm thresholds, as well as an alarm delay (in seconds) to prevent false alarms—such as when someone briefly opens a door. When the measured pressure exceeds the threshold, the display color changes immediately to indicate the alarm status.
The internal buzzer is optional and configurable. You can set the buzzer interval (in seconds) for on/off operation according to your preference.
Every ATM420 plug-and-install set includes a full-color touchscreen display, a flush-mount enclosure, and two differential pressure transmitter.
All you need is a 24VDC power supply and a connection cable between the ATM420 and the transmitter. This complete package ensures accurate and reliable room pressure monitoring in critical environments.
