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Air Pressure Sensor Thies

  • Order number
    S33100A
  • Availability

    On request
Piezo-ceramic air pressure sensor

Description

  • Piezo-electric barometric pressure sensor
  • High accuracy 0.3 hPa @ 25 °C
  • Scalable measurement range 600 … 1060 hPa
  • Quick responding behaviour
  • Long-term sturdiness

The sensor measures barometric air pressure. The instrument is designed for application in the field of meteorology and environmental protection, where high accuracy, quick responding behaviour, longterm sturdiness and reliability are required. The barometric pressure sensor measures the „ABSOLUTE AIR PRESSURE“.

The measuring results are available in 3 different forms
1. Analog voltage output: 0 V … 5 V (Standard/default configuration)
only on request, special configuration necessary
2. Frequency output: 300 Hz … 1100 Hz
3. Digital output: RS485

The sensor is a tempered, piezo-electric absolute-pressure sensor, which shows excellent thermal and mechanical
stability.

Specifications

Air Pressure Sensor Thies
General Information
Order Number S33100A
Measurement
Measuring Range 600 hPa ... 1060 hPa
Resolution 0.001 hPa
Accuracy (with sensor heating) ± 0.25 hPa
Accuracy (without sensor heating) ± 0.3 hPa @ 25°C
± 1.1 hPa @ -20°C to 65°C
Long-term Stability ± 0.1 hPa/year
Sensor Heating Control Temp 50°C ±1°K
Electrical
Supply Voltage 9 V DC ... 24 V DC
Current Consumption @ 12 V DC < 5 mA (with default configuration: heating off)
Electrical Outputs
Analog Voltage Output 0 V ... 5 V (corresponding to 600 hPa ... 1060 hPa)
Frequency Output Open collector with internal pull-up resistor
Frequency Output Levels Low: 0 V, High: 3 V
Frequency Range 260 ... 1260 Hz (corresponding to 260 ... 1260 hPa)
Serial Interface RS485 (Half duplex, two wire)
Communication Protocol Thies ASCII
Supported Baudrates 1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200
Recommended Baudrate for Meteo-40 plus 38400
Data Format 8N1
Environmental
Temperature Range -40 ... +65 °C
Storage Temperature -30 ... +70 °C
Humidity Range Non-condensing
Physical Properties
Dimensions 82 x 80 x 57 mm (see dimensional drawing)
Weight Approx. 150 g
Connection Screwed cable gland M16 x 1.5 and 8-pole terminal strip
Housing Polycarbonate
Housing Classification IP 54 (in-use position)
Outdoor Housing (on request) IP 67
Manufacturer
Manufacturer Thies Clima
Accessories
Accessory For RS485 output: Module set M83575 (incl. isolated repeater)

Sensor connection diagram

Accessories