Chapter 7 ___________________________________________________________ Troubleshooting
VAISALA ______________________________________________________________________ 267
R16:Receiver
Measurement CPU
LTC112; window
receiver AC
overrange
Check Window Transmitter Module status
(events R6–R11).
If any of the events R6–R11 are reported,
handle them first.
If no such event is reported, replace the
Receiver Measurement CPU (see section
Replacing Measurement CPU/Window
Re
ceiver on page 211).
R17:Receiver Optics
Unit LTO212;
alignment
mechanism vertical
underrange
R18:Receiver Optics
Unit LTO212;
alignment
mechanism vertical
overrange
R19:Receiver Optics
Unit LTO212;
alignment
mechanism
horizontal
underrange
R20:Receiver Optics
Unit LTO212;
alignment
mechanism
horizontal overrange
Position values are out of range
for normal operation
Check if movement of all axes is possible
and position values are valid (refer to
Service Menu)
Check for proper cabling at the receiver
optics unit
Check for firm fit of eccentric elements to
gear motor axis and variable resistor axis
R21:Receiver
Measurement CPU
LTC112, general
EEPROM error
Replace Receiver Measurement CPU (see
section Replacing Measurement
CPU/
Window Receiver on page 211).
R22:Receiver
Measurement CPU
LTC112, window
receiver EERPOM
error
Check for proper cabling between Receiver
Measurement CPU and appropriate
module.
Replace appropriate module (see sections
starting from Repair Instructions on page
201).
R23:Receiver
Window Transmitter
LTL212; EEPROM
error
The Receiver Measurement CPU
is unable to read or write the
appropriate EEPROM device
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