547-105B

The Siemens 547-105B serves as a dedicated device for monitoring room pressure. It integrates the P1 communication protocol, enabling efficient data transfer and system integration. This monitor weighs just 1 pound, making it easy to handle and install.

Its user interface consists of an RGB backlit LCD screen, which provides visibility with a display resolution of 128 x 128 pixels. This capability allows users to quickly ascertain the pressure status through the clearly visible red LED for alarms and a green LED indicating normal conditions. The device's pressure connections utilize barbed fittings compatible with 0.25-inch tubing, ensuring a secure attachment.

For mounting, the monitor is designed for use with a 4 x 4 plaster ring, facilitating easy installation on applicable surfaces. The connection cable type involves a removable terminal block, allowing for convenient setup and maintenance. Constructed from fire-retardant plastic, the housing promotes safety in various environments.

Operating within a voltage range of 18 to 32 volts AC, the instrument maintains an accuracy of ± 0.25% at a constant temperature, making it precise for sensitive applications. With a pressure measurement capability of 1 inch of water column, it can efficiently monitor slight changes in pressure.

Additionally, this monitor functions effectively in ambient temperatures ranging from 0°C to 50°C (32°F to 120°F). The degree of protection for the device aligns with NEMA Type 1 (IP20), safeguarding it from dust and direct contact, thus ensuring durability in standard indoor applications.