Vaisala BAROCAP® Barometer PTB110 is a micro controller based barometer including a voltage or frequency output. The barometer can be supplied with several pressure ranges. The output of the barometer is a calibrated barometric pressure reading. The barometer uses the Vaisala BAROCAP® Sensor, a silicon capacitive sensor developed by Vaisala for barometric pressure measurement applications. The BAROCAP® sensor is especially designed for accurate and stable measurement of barometric pressure.
This guide provides a complete overview of the PTB110 barometer, a micro‑controller based barometer with voltage or frequency output. It covers product description, pressure ranges, accuracy, and long‑term stability, as well as mechanical mounting on a DIN rail.
Installation instructions, electrical connections, operating modes, button functions, calibration procedures and safety precautions are detailed, allowing users to set up, configure and maintain the device safely and accurately.
| Pressure ranges | 500…1100 hPa |
|---|---|
| Supply voltage | 10…30 VDC |
| Output voltage | 0…2.5 VDC |
| Output frequency | 500…1100 Hz |
| Current consumption (normal mode) | < 4 mA |
| Current consumption (shutdown mode) | < 1 µA |
| Accuracy at +20 °C | ±0.3 hPa |
| Long‑term stability | ±0.1 hPa/year |
| Temperature range | -40…+60 °C |
| Housing classification | IP 32 |
| Weight | 90 g |
The accuracy at +20 °C is ±0.3 hPa.
Both three‑wire and four‑wire connections are supported, but a four‑wire connection is recommended for long signal wires.