Vaisala FS11P - Verification

Chapter 4 _________________________________________________________________ Operation
VAISALA _______________________________________________________________________ 105
Local practice may require changes, especially in the precipitation
intensity limits (moderate, heavy). See section WSET on page 113 for a
description of the WSET command.
The precipitation intensity and amount measurement is not calibrated at
the factory. Higher accuracy can be achieved by adjusting a scaling
factor (RAIN INTENSITY SCALE) with the WSET command. The new
scaling factor can be calculated by comparing PWD32 against a
reference rain gauge. See section WSET on page 113 for a description of
the WSET command, and for further instructions.
Alarm limits can be set in the CONF command. These have no effect in
FS11P use.
Verification
Below is a short procedure whereby the PWD32 operation can be
verified:
1. Connect a terminal via RS-232 maintenance terminal line to the
sensor.
2. Set the terminal baud rate to 9600 bps and the data frame to contain
8 data bits, 1 stop bit, no parity.
3. Switch the power supply on.
4. After startup, the PWD32 output is the following, where x.xx is the
firmware version and revision in use:
VAISALA PWD32 V x.xx YYYY-MM-DD SN:XXXXXX
ID is also included, if configured, for example, in the following way:
VAISALA PWD32 V x.xx YYYY-MM-DD SN:XXXXXX ID STRING: 0
If not, check the cabling and baud rate of the service terminal
(program). If wrong characters are shown, try other baud rates, such
as, 300, 1200, 2400, and 4800.
5. Wait for 20 seconds and enter into the command mode with the
OPEN 0 command. Check with the STA command that no
hardware errors or warnings are detected
6. Leave the command mode by typing CLOSE and check that the
FSC202-PWD32 communication appears in the display.
Other commands are described in section List of Commands on page
111.