Atmospheric pressure transmitter using temperature-compensated piezo sensor.
The measurements of atmospheric pressure and corrected temperature are digitally processed, allowing for highly accurate atmospheric pressure output values across the entire operating temperature range of the transmitter. The atmospheric pressure transmitter is factory calibrated at multiple points, ensuring excellent long-term stability and reproducibility. It comes standard with RS485 digital output using Modbus-RTU or proprietary protocol, and in addition, the following analog outputs can be selected as options: ● Current output of 0/4–20mA ● Voltage output of 0–1V, 0–5V, or 0–10V [Features] ▲ High-precision measurements using a piezoresistive sensor with an integrated temperature sensor for compensation ▲ Capability to measure atmospheric pressure, temperature, and humidity with an optional temperature and humidity probe ▲ Modbus-RTU output is standard across all models, with optional voltage/current analog outputs ▲ Long-distance data transmission and networking possible via digital output
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basic information
■ Atmospheric Pressure Measurement Range: 300–1100 hPa, analog output is scalable (default setting 600–1100 hPa) Resolution: 0.01 hPa (※Display resolution 0.1 hPa) Accuracy: ±0.5 hPa (700–1100 hPa), at 20°C; ±1 hPa (500–1100 hPa) / ±1.5 hPa (300–500 hPa), at 0–60°C Long-term Stability: Max. 1 hPa/year ■ Relative Humidity Measurement Range: 0–100% RH Resolution: 0.1% RH Accuracy: ±2.5% RH (0–85% RH) / ±3.5% RH (85–100% RH), at 23°C Sensor Operating Temperature: -40 to +105°C (R.H. Max = [100-2×(T-80)], at 80–105°C) Response Time: T₆₃ < 4 seconds (airflow speed 2 m/s, no filter) Stability: <1%/year (at 23°C, 30–70% RH) ■ Temperature Measurement Range: -40 to +105°C Resolution: 0.1°C Accuracy: For the range of 0–60°C: ±0.2°C; for the range of -40 to 0°C: ±(0.2-0.05×T)°C; for the range of 60–105°C: ±[0.2 + 0.032×(T-60)]°C Stability: 0.05°C/year
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Applications/Examples of results
Collection of meteorological observation data Climate research Indoor pressure monitoring in bio facilities and clean rooms And other applications for measuring atmospheric pressure
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Company information
Sakaki Corporation provides products and services from leading European manufacturers such as "Sensirion (formerly Delta Ohm) (formerly Glaesinger)", "Senseair", "Z-LASER", and "LSI Lastem" as the official importer and distributor in Japan. Additionally, we develop, support, and undertake custom development and mass production of our own brand network IoT products, including routers and gateways that support camera video and solar power cloud services.
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