Ulvac STC-1C Series, Инструкция по эксплуатации

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Super Trap Temperature Controller (STC-1Cseries) Instruction Manual
20 ULVAC CRYOGENICS INCORPORATED
10. Troubleshooting
Table 10-1 Troubleshooting list
Problems Possible causes Action
Refrigerator unit does
not start running. Input power cable, refrigerator power
cable, inverter control cable are not
connected. Connect cables correctly referring
to section 7.
Contact failure of the above-mentioned
cables. Reconnect cables correctly.
Failure of compressor Refer to the instruction manual of
the compressor unit.
Failure of refrigerator Refer to the instruction manual of
the trap.
Fault of internal circuit Contact our customer support.
The display shows
[400K] and does not
move. K thermocouple and its cable line are not
connected. Connect K thermocouple and its
cable line
correctly referring to
section 7.
Disconnection of K thermocouple Replace K thermocouple.
The indicated
temperature has
reached to the room
temperature or
above. (Around 340K)
[
＋
] and [
－
] of K thermocouple are wired
opposite way.
Wire them correctly again.
Interference of heater or other heat
source. Cut off all heater source
immediately. (The allowable
highest temperature of the
refrigerator is 340K)
Not be able to set the
parameter.
(Key control is not
available.)
The function to inhibit the parameter
setting is [on].
Press [UP] and [DN] keys at the
same time for 5 seconds to
release the function. (Refer to
section 9)
CAUTION
Maintenance and repair must be performed only by qualified maintenance personnel.
DO NOT remove the cover of the product.