Due to air currents and changing wind direction, barometric pressure measurements in open field conditions can exhibit errors of several hundred Pascals. The static compensation sleeve for barometric measurements can minimize such errors. It serves to reduce the dynamic pressure of the wind and ensures the barometer's operational readiness even in snow and ice. The device complies with WMO recommendations. The static compensation sleeve is made of UV-resistant material. It is temperature-resistant in the range of -40°C to +80°C.
INSTALLATION AND CONNECTION
Installation is simple: The static compensation bushing should be placed away from buildings, trees, and any other objects that could interfere with the free flow of wind. A three-screw M5x16 stainless steel mounting bracket is provided for installation. The static compensation bushing is connected to the barometer via a special HV55 tube (inner diameter 3 mm, outer diameter 6 mm), which is resistant to UV radiation and climate changes. Minimal maintenance and cleaning is required. The plastic parts are made of LURAN S777K, manufactured by BASF. Do not use aggressive cleaning agents.
TECHNICAL DATA
According to WMO recommendations, the maximum deviation of the air pressure measurement at a wind speed of 20 m/s should be 0.3 mbar (300 Pascal). The static compensation bushing for barometric measurements allows for compliance with these values. The following tables show the values from the wind tunnel tests.
Scope of delivery:
- sensor
- external measuring point
- Mounting kit
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Technical data |
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| Resolution: |
infinite |
| Temperature drift: |
±0.8 hPa (-40 to +80°C) |
| Long-term stability: |
< 0.2% FS over 6 months @20°C |
| Settling time: t99 |
5 min@24VDC 99% of final value |
| Response time: |
<200 ms |
| Supply voltage: |
8 to 35 VDC |
| Electricity: |
25mA @ 02°C, 24Vdc |
| Operating temperature: |
-40..+60 °C |
| Area of application: |
non-aggressive gases |
| Overpressure: |
2 bar to 30 psi
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