PBS83M, Barometric Pressure Transmitter with Digital Output
PBS83M is a barometric transmitters series with high-precision piezo-resistive pressure sensor and integrated temperature sensor, RS485 output and additional analog output user-configurable in current or voltage.
The measuring range is: 300…1100 hPa
Specifically designed for applications such as:
- Meteorological applications
- Environmental monitoring systems
- Altitude applications
- Barometric pressure compensation in internal combustion engines
- Cleanrooms
- Testing of vehicle emissions
It is equipped with a precision piezo-resistive pressure sensor with integrated temperature sensor. The pressure and temperature measurements are digitally processed to obtain a pressure output value compensated over the whole transmitter temperature operating range.
The transmitter has a digital RS485 output with MODBUS-RTU or proprietary protocol. As option, it can be supplied with an additional analog output, which can be selected by the user in current or voltage via an internal jumper.
The transmitter digital output enables the transmission of the measurements over long distances and connects the transmitter to sensors networks.
Optionally, it can be supplied with additional input for combined temperature and relative humidity probe. Having the external probe connected, the barometric transmitter calculates as well dew point, absolute humidity and wet bulb temperature.
A user-friendly interface allows to choose from a range of user-selectable units of measurement. An optional LCD display is available for immediate and direct reading of the data.
For outdoor installations, the optional static port with support bracket minimizes measurement errors caused by wind flow, ensuring extreme accuracy and reliability.
Looking for barometric transmitters with only analog output? Have a look at the PBS860 and PBS880 series.
Characteristics:
Precision technology
Equipped with a high-precision piezo-resistive pressure sensor and integrated temperature sensor, PBS83M BAROsense delivers accuracy beyond expectations.
Digital excellence
The digital RS485 output with MODBUS-RTU or proprietary protocol ensures seamless connectivity and data transmission over extended distances, linking your
transmitter to sensor networks effortlessly.
User-friendly interface
Choose from a range of user-selectable units of measurement, making it adaptable to your specific requirements. Opt for the optional LCD display for immediate and direct reading convenience.
Weather-ready solutions
Enhance accuracy with optional inputs for combined temperature and relative humidity probes. Calculate dew point, absolute humidity, and wet bulb temperature
effortlessly. By having these additional measurements, the device can offer a more comprehensive view of the surrounding environment. This is particularly useful in applications where environmental conditions can affect processes or equipment performance.
Wind-resistant solutions
For outdoor installations, our optional static port with support bracket minimizes measurement errors caused by wind flow, ensuring extreme accuracy and reliability in open field measurements.
Versatile outputs
Tailor your experience with an additional analog output, user-configurable in current (0/4…20mA) or voltage (0…1V, 0…5V, or 0…10V) – the flexibility you
desire.
Calibration confidence
Factory calibrated in multiple points, PBS83M BAROsense boasts excellent time stability and repeatability, providing you with confidence in every measurement.
According to the standard
Meets WMO requirements.
Durability
Crafted with excellence, is built to withstand diverse environmental conditions, ensuring longevity and performance.
Technical data:
Measurements
Barometric Pressure
Sensor: Piezoresistive
Measuring range: 300…1100hPa
Configurable for analog output (default 600…1100hPa)
Resolution: 0.1 for the display
0.01 for the digital output
Accuracy: ±0.5hPa (700…1100hPa) @ +20°C
±1hPa (500…1100hPa) / ±1.5hPa (300…500hPa) @ T=(0…+60°C)
Long-term stability: < ±1hPa/year
Relative Humidity (only for PBS83M with external probe)
Sensor: Capacitive
Measuring range: 0…100%RH
Resolution: 0.1%
Accuracy: ±2.5% (0…85%RH)
± 3.5% (85…100%RH) @ T= +23°C
Temperature drift: 0.05%/K (0…+60°C)
Sensor operating temperature:
-40…+105°C (RHmax= [100-2*(T-80)] @ T=80…105°C)
Response time: T63 <4s (air speed = 2m/s, without filter)
Long-term stability: <1%/year (@ +23°C and 30…70%RH)
Temperature (only for PBS83M with external probe)
Sensor: PTAT integrated in humidity module
Measuring range: -40…+105°C
Resolution: 0.1°C
Accuracy: ±0.2°C in the range 0…+60°C
±(0.2 – 0.05 * T) °C in the range T=-40…0°C
±[0.2 + 0.032 * (T-60)] °C in the range T=+60…+105°C
Long-term stability: 0.05°C/year
Calculated quantities (only for PBS83M with external probe):
Dew point, absolute humidity and wet bulb temperature
General
Output: RS485 with Modbus-RTU or ASCII proprietary protocol
Optional analog output, selectable in current (0/4…20 mA)
or voltage (0…1V, 0…5V or 0…10V, depending on the model)
Power supply:
PBS83M0…: 7…30VDC
PBS83MW…: 8…30VDC
PBS83MX…: 8…30VDC
PBS83MY…: 15…30VDC
Power consumption: 4mA @ 24VDC (+ output current if current output is used)
Connection: Internal screw terminal header / PG7 cable gland for power supply and output
Optional M12 connector for the T/RH external probe
Operating conditions: -40…+60°C (-20…+60°C with LCD)
0…100%RH
Compatible media: Air and dry gases
Material transmitter: Polycarbonate,
pressure input in nickel-plated brass
Static port (optional): ASA
Support bracket (optional): Aluminium alloy
Housing dimensions: 120 x 80 x 55mm³
Weight: 250g approx.
(+ 570g approx. for static port)
Protection degree: IP65
