Precautions Before Usage - Panasonic FP0-TC4 Technical Manual

Precautions before Usage

- Accuracy
・ Connecting/disconnecting the Thermocouple input terminal block while the Thermocouple Unit is ON will
lower an accuracy temporarily. Accordingly, use the temperature data obtained 15 minutes after its action.
・ When a high-accurate temperature data is required, use the temperature data obtained 15 minutes after
turning ON the Thermocouple Unit. (However, the temperature data within 15 minutes is also within the
Total accuracy range.)
・A rapid temperature change in the Thermocouple Unit might change the temperature data temporarily.
・ The direct air (wind) from the cooling fan built in the control panel etc. to the Thermocouple Unit will lower
an accuracy. Prevent a direct air.
- Programming
・ From the Power-ON to the converted data Ready, the digital value will be K8001 or K16001. Create a
ladder program not to use the data obtained during that period.
・ When the thermocouple is broken, the digital value will change to K8000 or K16000 within 70 seconds.
Practice in the ladder program a process for avoiding a risk, would be resulting from a broken thermocouple,
and exchange the thermocouple.
・
When the Input range setting switch is set for 4 channels or more, use a program described in "7.2
Program>, without fail.