Need help?Do you have a question about the Vaisala PWD22 and is the answer not in the manual?
General| Brand | Vaisala |
|---|---|
| Model | PWD22 |
| Category | Weather Station |
| Language | English |
This manual provides information for installing, operating, and maintaining Vaisala Present Weather Detector PWD22/52.
This manual consists of chapters covering general information, product overview, functional description, installation, operation, maintenance, troubleshooting, and technical data.
Details manual revisions and release dates.
Lists other relevant Vaisala product user guides.
Explains warning, caution, and note highlighting.
Covers electrical safety, handling, and operating environment hazards.
Includes connector tightening and servicing personnel requirements.
Guidelines for handling sensitive electronic components to prevent static discharge damage.
Instructions for proper disposal of materials and the unit.
Lists EU directives and compliance standards.
Defines registered trademarks and software usage rights.
Provides information on standard warranty terms and conditions.
Introduces the PWD22/52 as an intelligent, multi-variable sensor.
Describes typical usage and output interfaces.
Details the codes and common names for components and options.
Explains how visibility and precipitation are measured using light scatter.
Describes the infrared LED, control circuits, and intensity monitoring.
Details the photodiode, preamplifier, and signal processing.
Explains how the sensor estimates precipitation water content.
Describes its use for aeronautical visibility and day/night detection.
Explains commands for controlling luminance measurement modes and calibration.
Details the Pt100 thermistor for cross arm temperature measurement.
Discusses how PWD22/52 data is used in weather stations.
Monitors voltages, contamination, and program operation.
Explains memory checks and signal measurement monitoring.
Details the use of an ADC for measuring hardware signals and voltages.
Explains how the system monitors transmitter and receiver contamination.
Provides requirements for choosing a suitable location for accurate measurements.
Details grounding principles for protection against lightning and interference.
Explains grounding of the enclosure and remote units.
Guides on handling, unpacking, and storing the equipment.
Describes how to physically install the PWD22/52 unit.
Details how to connect the mast cable to the sensor.
Provides a table for default wiring of the receptacle connector.
Specifies voltage requirements for measurement electronics.
Describes power for internal and optional luminance sensor heaters.
Specifies power requirements for optional hood heaters.
Details default baud rate, data bits, parity, and stop bit.
Explains wiring for RS-232 communication.
Describes RS-485 wiring for multi-sensor communication.
Explains how to connect a computer for maintenance.
Explains how relay controls are driven by visibility limits and hardware status.
Illustrates external relay connections for PWD22/52 supplies and external supply.
Describes how to set and display relay control states.
Details initial setup for communication and system parameters.
Lists commands for changing baud rate, message mode, and sensor ID.
Explains commands for displaying and setting weather analysis parameters.
Outlines steps for verifying the sensor before connecting to a host system.
Introduces automatic and polled modes, and user commands.
Refers to initial settings and routine maintenance operations.
Explains the OPEN and CLOSE commands to manage communication line access.
Describes the frame strings and content of data messages.
Explains the output format and content for messages 0 and 1.
Describes messages for present weather, status, and visibility sensors.
Describes message emulation and aviation-specific formats.
Explains how to configure message number and interval for automatic transmission.
Details how to poll for specific messages from the host computer.
Explains how the host computer can manage precipitation sum data.
Describes commands for displaying messages and configuring automatic/polled messages.
Displays current weather analysis parameters.
Allows modification of weather analysis parameters.
Provides further details on MES and AMES commands.
Shows the output of the WPAR command.
Explains how to modify parameters like precipitation limits.
Resets precipitation cumulative sums.
Displays current system parameters.
Allows setting or updating system parameters, including password protection.
Shows an example of the system response to configuration commands.
Explains default operation and manual control of hood heaters.
Details how to change the baud rate and communication type.
Mentions the default wiring and connection setup for analog output.
Introduces the different modes for analog output calculation.
Describes the standard linear visibility output mode.
Explains the logarithmic mode using ln(visibility).
Describes the extinction mode for visibility.
Explains non-linear Videograph modes.
Outlines the steps for calibrating the analog output.
Details the execution of the ACAL command for calibration.
Lists commands for status, calibration, cleaning, and zero signal checks.
Lists commands for calibrator checks and RAINCAP® sensor adjustment.
Lists commands for RAINCAP® wet scale and heater testing.
Explains how to display and set the system time.
Explains how to display and set the system date.
Describes commands for hardware reset and software version display.
Outlines recommended periodic maintenance tasks.
Provides a step-by-step procedure for cleaning optical surfaces.
Details cleaning instructions for the RAINCAP® sensor, including ESD precautions.
Discusses the need for visibility calibration checks.
Explains the procedure for checking and adjusting visibility calibration.
Details the steps for performing a calibration check using plates.
Describes the CAL command for performing calibration.
Guides on removing and replacing optical units like transmitter and receiver.
Provides detailed steps for removing the transmitter module.
Details steps for removing the controller/receiver board.
Shows how to remove the protection board.
Details the process of removing the main PWC22/52 board.
Provides instructions for replacing the RAINCAP® sensor.
Introduces common issues, causes, and remedies.
Guides on interpreting and resolving warning or alarm messages.
Provides steps to take if messages are not received.
Addresses problems with visibility values being too good or too low.
Covers issues like false precipitation reports or incorrect frozen precipitation detection.
Guides on diagnosing electrical issues, checking LEDs and connections.
Provides contact information for Vaisala technical support.
Directs users on how to return products for service.
Introduces the chapter containing technical data.
Lists dimensions, weight, mounting, and material.
Details power consumption, sensor electronics, outputs, and data.
Covers specifications for the light transmitter and receiver.
Lists measurement range and accuracy for MOR.
Details precipitation detection, type identification, and reporting.
Covers operating temperature, humidity, wind speed, and sun orientation.
Provides typical values, min/max limits, and faults for STA message parameters.
Lists specific hardware error texts and their descriptions.
Lists warning codes and their descriptions.
Shows the location of connectors on the processor/receiver board.
Explains the function of various jumpers and connectors.
Introduces tables for weather codes.
Lists SYNOP codes for weather types.
Lists METAR codes for weather phenomena.
To Next Page
