12
1.4
Prohibition of use in gas
The instrument is not an intrinsic safety explosion - proof type. Do not use
it in a place exposed to combustible or explosive gas.
1.5
Contact to unit
1) This unit must not be disassembled, modified or repaired to prevent mal-
function, shock hazard or fire accident.
2) When the power is ON, do not touch the terminals to prevent shock hazard
or malfunction.
1.6
Caution on maintenance
1) Before mounting or removing the module or unit, turn OFF the power in
advance to prevent shock hazard, malfunction or trouble.
2) Periodical maintenance is recommended to ensure continuous and safe
operation of the instrument. Some parts of the instrument are limited in life
or are subject to secular change.
WARNING
It is essential that, when the controller is introduced into a system
which uses or generates a hazardous voltage, the minimum creepage
and clearances specified in the table below are maintained on the
temperature probe. A hazardous voltage is one that exceeds 42.4V
peak AC or 60V DC. If you have any doubt, seek advice from a
competent engineer before installing the controller into the host
equipment.
The equipment must be installed such that with the exception of the
connection to the mains, creepage and clearance distances shown in
the table below are maintained between the temperature probe and
any other assemblies which use or generate a voltage shown in the
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Summary of Contents for FUZZY LOGIC CN4800
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