Chapter 4 _________________________________________________________________ Operation
VAISALA _______________________________________________________________________ 115
The precipitation measurement can be calibrated by comparing the
PWD32 rain amount to measurements made with a suitable reference
rain gauge.
This comparison should be made after a few rain events with 5 mm or
more of total accumulated rain. A new scaling factor can be calculated
using the following formula:
NEWSCALE = OLDSCALE * (REF_AMOUNT / PWD_AMOUNT)
The old value of rain intensity scale.
The amount measured with the reference rain
gauge.
The corresponding amount measured by
PWD32.
CLRS
The CLRS command resets the precipitation accumulations to 0.00 and
000.
This can be done by the host with the following command:
;PW id C
C
R
ESC (ASCII character 1B hex)
System Configuration Commands
The following command can be used to display system parameters and to
edit the current system configuration:
- PAR, Parameter message
- CONF password, Updates configuration
- BAUD rate comm. type, Sets baud rate and type (Rate 300,
1200, 2400, 4800, 9600), (Communication type E (7E1) or N
(8N1)