User's Guide _______________________________________________________________________
70____________________________________________________________________ M210543EN-B
The precipitation measurement can be calibrated by comparing the
PWD22 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)
where
OLDSCALE
= The old value of rain intensity scale.
REF_AMOUNT
= The amount measured with the reference rain
gauge.
PWD_AMOUNT = The corresponding amount measured by
PWD22.
CLRS
The CLRS command resets (to 0.00) the precipitation cumulative
sums.
This can be done by the host with the following command:
PW id C
where
=
ESC
(
ASCII character 1B hex.
<
=
ASCII character (06 hex).
C
R
=
ASCII character (13 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)