Ceilometer CT25K
CT25K-U059en-2.1 User’s Guide
89
7. TROUBLESHOOTING
7.1 Normal Operation
7.1.1 Equipment
To check the normal operation of the CT25K you need to have a maintenance
terminal which can be a PSION3 palmtop computer with an RS cable (RS232
Interface) and Terminal Cable CT3840 or a PC with serial interface, PC
Terminal Cable CT35198, and any terminal program. CT-VIEW software can
be used for this purpose. Also, if you perform the operation check indoors,
you need to have an Optical Termination Hood (CT25184) which absorbs the
laser light that otherwise would reflect from the ceiling and possibly saturate
the receiver.
7.1.2 Instructions
To check the normal operation of the CT25K do the following steps:
1. Clean the window carefully with a soft lint-free cloth moistened with mild
detergent. Be careful not to scratch the window surface.
2. If you are indoors, put the Optical termination hood (black hat) on the
ceilometer window. From the ceilometers point of view this corresponds
to a clear, nighttime sky.
3. Connect the maintenance terminal to the maintenance port at the bottom of
the CT25K. Turn on both the CT25K and the maintenance terminal. If you
are using the PSION3 or the CT-VIEW program for the first time, do the
necessary installation according to the corresponding User’s Guide
instructions.
If you are using the PSION3 :
PSION3 is turned on for normal operation by pressing the key "Esc"
or by pressing the special "Psion" key (∪) together with "ON".
Choose the configuration CT25K from the System screen and press
ENTER. The terminal is now ready for dialogue communication with
the ceilometer.
Start the program by pressing ENTER. The prompt "CT:"should
appear on the screen. If not, check the cables and port settings (see
section 2.7.).
If you are using the CT-VIEW program :
Double click the CT-VIEW icon.
Choose Terminal from the main menu bar.
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