Chapter 5 ________________________________________________________________ Operation
VAISALA _______________________________________________________________________ 65
MIN VIS 180, 4.5 mA
20 mA SCALE_1 184.6, SC_0 -2.8
1 mA SCALE_1 184.8, SC_0 -1.4
CONF
Use the CONF configuration command to set or update system
parameters and adjust calibrations, reference values, and limits. Use
password protection to limit the use of this command. New parameter
values are saved in non-volatile memory (EEPROM).
With the CONF command, PWD22/52 retrieves the system parameters
one by one, showing the current value in most cases as the default. The
old settings do not change if users only press ENTER as the answer.
System parameters saved in the EEPROM are:
- Automatic message number
- Visibility alarm limits
- Offset reference
- Signal scale
- Password characters
- Unit id characters (2)
- References and limits for contamination monitoring
- Baud rate
- Serial number
- EEPROM checksum
- Relay control mode and Relay delays
- Analog output mode and range
- Hood heater usage
To prevent unauthorized changes to the system parameters, a four-
character password can be set. If no password is set, the command
continues as if it had the correct password.
When no password has been set, the command is the following:
CONF
When a password has been set in a previous session, the command
format (max. four character string, printable characters) is the following:
CONF password
If the previous password is known, the password can be changed with the
CONF password N command, where the N character stands for new.
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