Vaisala MMT162 - Manual (Page 51)

Chapter 5 ______________________________________________________________ Maintenance
VAISALA _______________________________________________________________________ 49
Table 9 Error Messages
Error Message Action
Voltage error Internal error or invalid supply voltage.
T meas error Internal error, can be caused by
damage to the temperature sensor.
F meas error Internal error, can be caused by
damage to the HUMICAP® sensor.
Voltage too low error Supplied operating voltage is too low
for reliable operation.
Voltage too low for mA output Supplied operating voltage is too low
for reliable operation of the analog
current output.
Voltage is too low for V output Supplied operating voltage is too low
for reliable operation of the analog
voltage output.
Program flash check sum error Internal error
Parameter check sum error Internal error
INFOA check sum error Internal error
SCOEFS check sum error Internal error
CURRENT check sum error Internal error
Unknown Serial Settings
If you are not sure what the current serial settings of your transmitter are,
follow the steps below to connect to the transmitter. This procedure
assumes you have the USB service cable available.
For more information on the USB service cable and the PuTTY terminal
application, see section Serial Communication on page 22.
1. Connect the USB service cable to your PC, but do not connect it to
the transmitter yet.
2. Start a terminal application and open a terminal session using the
default serial settings of 19200 8 N 1.
3. Plug the USB service cable into the transmitter, and quickly send at
least one hash character # to the serial line:
#
4. The normal startup of the transmitter is now interrupted, and the
transmitter is available for commands with the default serial
settings. You can now check the transmitter’s information by
issuing the ? command:
?
The transmitter’s currently stored serial settings are visible on the
line marked Baud P D S.