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General| Type | Digital barometer |
|---|---|
| Resolution | 0.01 hPa |
| Protection Class | IP65 |
| Operating Temperature Range | -40 to +60 °C |
| Power Supply | 10 to 30 VDC |
| Output Signal | RS-232, RS-485 |
| Stability | ±0.1 hPa per year |
Provides important instructions regarding safety considerations, including warnings and cautions.
Details Vaisala's warranty terms for products and service works, including conditions and exclusions.
Guides initial operation using the RS232C serial interface for commissioning.
Summarizes commands used for commissioning the PTB220 series digital barometers.
Explains how to select the barometer's sending mode (STOP, RUN, SEND, POLL).
Details how to select measurement mode (NORMAL/FAST) and related switch settings.
Describes how to activate/deactivate and configure pulse output mode parameters.
Explains how to set and inspect serial bus communication parameters (baud rate, parity, etc.).
Explains how to define output format for serial data, including fields like decimals and units.
Describes how to set units for pressure and internal temperature measurements.
Details how to set averaging time for pressure readings to improve stability.
Explains how to set unique address for barometer, essential for POLL mode operations.
Details how to set low and high pressure alarm levels for immediate notification.
Sets maximum allowed pressure difference between transducers for error indication.
Details pin assignments for RS232C/TTL serial/pulse output and RS485/422 interfaces.
Describes 'DNOS' command for performing self-diagnostics and checking status.
Explains 'RESET' command to restore default settings or reset the barometer.
Describes how to activate or deactivate linear offset or offset/gain corrections.
Explains how to activate or deactivate multipoint corrections.
Guides on entering new linear offset/gain corrections for each transducer.
Details how to enter new multipoint corrections for each pressure transducer.
Instructions to return barometer to factory settings for serial communication.
The 'ERRS' command to print error messages, codes, and descriptions.
The 'TEST n' command to output measured quantities for transducer operation testing.
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