9
Precautions for Safe Use
Digital Temperature Controllers (Simple Type) User’s Manual (H211)
• A switch or circuit breaker should be provided close to Digital Controller. The switch or circuit breaker
should be within easy reach of the operator, and must be marked as a disconnecting means for
Digital Controller.
• Wipe off any dirt from the Digital Controller with a soft dry cloth. Never use thinners, benzine, alcohol,
or any cleaners that contain these or other organic solvents. Deformation or discoloration may occur.
• Design the system (e.g., control panel) considering the 2 seconds of delay in setting the Digital
Controller’s output after the power supply is turned ON.
• The output will turn OFF when you move to the Initial Setting Level. Take this into consideration when
performing control.
• The number of non-volatile memory write operations is limited. Therefore, use RAM write mode when
frequently overwriting data during communications or other operations.
• Use suitable tools when taking the Digital Controller apart for disposal. Sharp parts inside the Digital
Controller may cause injury.
• Do not exceed the communications distance that is given in the specifications. Use the specified
communications cable.
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