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10
4.3
CAUTION ON SAFETY
WARNING
CAUTION
Wrong handling may cause a dangerous situation,
in which there is a possibility of death or heavy
injury.
Wrong handling may cause a dangerous situation,
in which there is a possibility of injury or physical
damage.
First of all, read this "Caution on Safety" carefully,
and then use the instrument in the correct way.
The cautionary descriptions listed here contain important information about
safety, so they should always be observed. Those safety precautions are
classified in 2 ranks, WARNING and CAUTION.
The following shows the meaning of WARNING and CAUTION.
1.
WARNING
1.1
Caution on wiring
1) For the safe operation of the controller, where the temperature probe is to
be installed into an environment where voltage exceed 50VDC, it is essen-
tial that reinforced isolation or basic isolation and earth the maintained be-
tween all connections to the rear of the temperature controller, and that
supplementary isolation is required for the alarm outputs.
The outputs from the controller are all less than 50VDC.
When wiring the power supply terminal, use vinyl insulated 600 volt cable
or equivalent. A switch breaking both poles of the mains supply should be
installed together with a fuse with a rating of 250 volt 1 Amp. The fuse
should be installed between the mains switch and the controller.
The level of insulation provided by the temperature controller is:-
MAIN = BASIC
HEATER = BASIC
INPUTS = BASIC
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Содержание FUZZY LOGIC CN4800
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