Vaisala LT31 - Page 152

User's Guide ______________________________________________________________________
152 _________________________________________________________________ M210667EN-C
Command Description
SET INTERNAL_FILTER number Sets filter value of the internal filter. When an internal
filter is applied (for example for installations with baseline
length of less than 30 m), it is necessary to set the
internal filter value accordingly. Otherwise the displayed
SIGNAL values in Alignment Menu and Calibration Menu
will be incorrect.
Example: Configure an internal filter with 56 %
transmission respectively an attenuation factor of 0.56
with the command SET INTERNAL_FILTER 0.56
SET MESSAGE SECOND
TYPEmessage_number
Selects the message type to be transmitted as the
Second Message.
SET MESSAGE SECOND TYPE MITRAS Selects the MITRAS Single Base emulation mode for the
Second Message. The data message and message
frames are the same as they are in Vaisala MITRAS
Transmissometer.
SET MESSAGE SECOND TYPE
FD12MSG2
Selects the FD12 message 2 emulation mode for the
Second Message. The data message and message
frames are the same as they are in Vaisala FD12
Visibility Meter.
SET MESSAGE SECOND TYPE
FD12MSG7
Selects the FD12 message 7 emulation mode for the
Second Message. The data message and message
frames are the same as they are in Vaisala FD12P
Weather Sensor.
SET MESSAGE SECOND TYPE SKOPO2 Selects the SKOPOGRAPH II Flamingo emulation mode
for the Second Message. The data message and
message frames are the same as they are in
Impulsphysik SKOPOGRAPH II Flamingo.
SET MESSAGE SECOND PORT DATA The Second Message is directed to the Data port.
SET MESSAGE SECOND PORT
MAINTENANCE
The Second Message is directed to the Maintenance
port.
SET MESSAGE SECOND PORT MODULE The Second Message is directed to the optional
communication module, for example, modem module.
SET MESSAGE SECOND PORT NONE No Second Message is given to any port (default).
SET METAR OFF Disables METAR messaging (default).
SET METAR ON Enables METAR messaging. without framing
SET METAR 8 Enables METAR messaging. with framing
SET PWD OFF Disables PWD data polling in the LT31 system.
SET PWD ON Enables PWD data polling in the LT31 system.
SET PWD_MOR_ONERROR [ON|OFF] The current status is reported by set pwd_mor_on_error.
The response is PWD MOR is (NOT) used on error.
To disable the use of PWD MOR in error situations use
the command set pwd_mor_on_error off. The response
would be PWD MOR is NOT used on error.
To enable the use of PWD MOR in error situations
(default) use the command set pwd_mor_on_error on.
The response is PWD MOR is used on error.
SET PWD_PITCH number During auto-calibration, derived PWD MOR data will be
corrected by a factor with the value of number. To take
PWD data as it is, number has to be set to 1.000
(default).
SET MESSAGE FRAME OFF Message frames not included in data messages.
SET MESSAGE FRAME ON Message frames included in data message transmission
(default).
SET MOR_RANGE minimum_MOR
maximum_MOR
Under and overrange values for MOR readings are set.
Values are to be given in meters. The absolute minimum
value is 10. The absolute maximum value is 10 000. The
minimum value is set according to the baselength. A
baselength up to 35 m will allow underrange values
down to 1/3 of the baselength. A baselength above 35 m
will allow underrange values down to 1/2 of the
baselength.